| 0 | TCP, UDP | | Reserved |
| 1 | TCP, UDP | tcpmux | TCP Port Service Multiplexer |
| 2 | TCP, UDP | | Reserved |
| 3 | TCP, UDP | | Reserved |
| 5 | TCP, UDP | rje | Remote Job Entry |
| 7 | TCP, UDP | echo | Echo |
| 9 | DCCP, SCTP, TCP, UDP | discard | Discard |
| 11 | TCP, UDP | systat | Active Users |
| 13 | TCP, UDP | daytime | Daytime |
| 15 | TCP | | Unassigned [was netstat] |
| 17 | TCP, UDP | qotd | Quote of the Day |
| 18 | TCP, UDP | msp | Message Send Protocol (historic) |
| 19 | TCP, UDP | chargen | Character Generator |
| 20 | SCTP, TCP, UDP | ftp-data | File Transfer [Default Data] |
| 21 | SCTP, TCP, UDP | ftp | File Transfer Protocol [Control] |
| 22 | SCTP, TCP, UDP | ssh | The Secure Shell (SSH) Protocol |
| 23 | TCP, UDP | telnet | Telnet |
| 24 | TCP, UDP | | any private mail system |
| 25 | TCP, UDP | smtp | Simple Mail Transfer |
| 27 | TCP, UDP | nsw-fe | NSW User System FE |
| 29 | TCP, UDP | msg-icp | MSG ICP |
| 31 | TCP, UDP | msg-auth | MSG Authentication |
| 33 | TCP, UDP | dsp | Display Support Protocol |
| 35 | TCP, UDP | | any private printer server |
| 37 | TCP, UDP | time | Time |
| 38 | TCP, UDP | rap | Route Access Protocol |
| 39 | TCP, UDP | rlp | Resource Location Protocol |
| 41 | TCP, UDP | graphics | Graphics |
| 42 | TCP, UDP | name, nameserver | Host Name Server |
| 43 | TCP, UDP | nicname | Who Is |
| 44 | TCP, UDP | mpm-flags | MPM FLAGS Protocol |
| 45 | TCP, UDP | mpm | Message Processing Module [recv] |
| 46 | TCP, UDP | mpm-snd | MPM [default send] |
| 47 | TCP, UDP | | Reserved |
| 48 | TCP, UDP | auditd | Digital Audit Daemon |
| 49 | TCP, UDP | tacacs | Login Host Protocol (TACACS) |
| 50 | TCP, UDP | re-mail-ck | Remote Mail Checking Protocol |
| 51 | | | Reserved |
| 52 | TCP, UDP | xns-time | XNS Time Protocol |
| 53 | TCP, UDP | domain | Domain Name Server |
| 54 | TCP, UDP | xns-ch | XNS Clearinghouse |
| 55 | TCP, UDP | isi-gl | ISI Graphics Language |
| 56 | TCP, UDP | xns-auth | XNS Authentication |
| 57 | TCP, UDP | | any private terminal access |
| 58 | TCP, UDP | xns-mail | XNS Mail |
| 59 | TCP, UDP | | any private file service |
| 61 | TCP, UDP | | Reserved |
| 62 | TCP, UDP | acas | ACA Services |
| 63 | TCP, UDP | whois++, whoispp | whois++ IANA assigned this well-formed service name as a replacement for "whois++". |
| 64 | TCP, UDP | covia | Communications Integrator (CI) |
| 65 | TCP, UDP | tacacs-ds | TACACS-Database Service |
| 66 | TCP, UDP | sql*net, sql-net | Oracle SQL*NET IANA assigned this well-formed service name as a replacement for "sql*net". |
| 67 | TCP, UDP | bootps | Bootstrap Protocol Server |
| 68 | TCP, UDP | bootpc | Bootstrap Protocol Client |
| 69 | TCP, UDP | tftp | Trivial File Transfer |
| 70 | TCP, UDP | gopher | Gopher |
| 71 | TCP, UDP | netrjs-1 | Remote Job Service |
| 72 | TCP, UDP | netrjs-2 | Remote Job Service |
| 73 | TCP, UDP | netrjs-3 | Remote Job Service |
| 74 | TCP, UDP | netrjs-4 | Remote Job Service |
| 75 | TCP, UDP | | any private dial out service |
| 76 | TCP, UDP | deos | Distributed External Object Store |
| 77 | TCP, UDP | | any private RJE service |
| 78 | TCP, UDP | vettcp | vettcp |
| 79 | TCP, UDP | finger | Finger |
| 80 | SCTP, TCP, UDP | http, www, www-http | World Wide Web HTTP |
| 82 | TCP, UDP | xfer | XFER Utility |
| 83 | TCP, UDP | mit-ml-dev | MIT ML Device |
| 84 | TCP, UDP | ctf | Common Trace Facility |
| 85 | TCP, UDP | mit-ml-dev | MIT ML Device |
| 86 | TCP, UDP | mfcobol | Micro Focus Cobol |
| 87 | TCP, UDP | | any private terminal link |
| 88 | TCP, UDP | kerberos | Kerberos |
| 89 | TCP, UDP | su-mit-tg | SU/MIT Telnet Gateway |
| 90 | TCP, UDP | dnsix | DNSIX Securit Attribute Token Map |
| 91 | TCP, UDP | mit-dov | MIT Dover Spooler |
| 92 | TCP, UDP | npp | Network Printing Protocol |
| 93 | TCP, UDP | dcp | Device Control Protocol |
| 94 | TCP, UDP | objcall | Tivoli Object Dispatcher |
| 95 | TCP, UDP | supdup | SUPDUP |
| 96 | TCP, UDP | dixie | DIXIE Protocol Specification |
| 97 | TCP, UDP | swift-rvf | Swift Remote Virtural File Protocol |
| 98 | TCP, UDP | tacnews | TAC News |
| 99 | TCP, UDP | metagram | Metagram Relay |
| 101 | TCP, UDP | hostname | NIC Host Name Server |
| 102 | TCP, UDP | iso-tsap | ISO-TSAP Class 0 |
| 103 | TCP, UDP | gppitnp | Genesis Point-to-Point Trans Net |
| 104 | TCP, UDP | acr-nema | ACR-NEMA Digital Imag. & Comm. 300 |
| 105 | TCP, UDP | csnet-ns, cso | CCSO name server protocol |
| 106 | TCP, UDP | 3com-tsmux | 3COM-TSMUX |
| 107 | TCP, UDP | rtelnet | Remote Telnet Service |
| 108 | TCP, UDP | snagas | SNA Gateway Access Server |
| 109 | TCP, UDP | pop2 | Post Office Protocol - Version 2 |
| 110 | TCP, UDP | pop3 | Post Office Protocol - Version 3 |
| 111 | TCP, UDP | sunrpc | SUN Remote Procedure Call |
| 112 | TCP, UDP | mcidas | McIDAS Data Transmission Protocol |
| 113 | TCP, UDP | auth, ident | |
| 115 | TCP, UDP | sftp | Simple File Transfer Protocol |
| 116 | TCP, UDP | ansanotify | ANSA REX Notify |
| 117 | TCP, UDP | uucp-path | UUCP Path Service |
| 118 | TCP, UDP | sqlserv | SQL Services |
| 119 | TCP, UDP | nntp | Network News Transfer Protocol |
| 120 | TCP, UDP | cfdptkt | CFDPTKT |
| 121 | TCP, UDP | erpc | Encore Expedited Remote Pro.Call |
| 122 | TCP, UDP | smakynet | SMAKYNET |
| 123 | TCP, UDP | ntp | Network Time Protocol |
| 124 | TCP, UDP | ansatrader | ANSA REX Trader |
| 125 | TCP, UDP | locus-map | Locus PC-Interface Net Map Ser |
| 126 | TCP, UDP | nxedit | NXEdit |
| 127 | TCP, UDP | locus-con | Locus PC-Interface Conn Server |
| 128 | TCP, UDP | gss-xlicen | GSS X License Verification |
| 129 | TCP, UDP | pwdgen | Password Generator Protocol |
| 130 | TCP, UDP | cisco-fna | cisco FNATIVE |
| 131 | TCP, UDP | cisco-tna | cisco TNATIVE |
| 132 | TCP, UDP | cisco-sys | cisco SYSMAINT |
| 133 | TCP, UDP | statsrv | Statistics Service |
| 134 | TCP, UDP | ingres-net | INGRES-NET Service |
| 135 | TCP, UDP | epmap | DCE endpoint resolution |
| 136 | TCP, UDP | profile | PROFILE Naming System |
| 137 | TCP, UDP | netbios-ns | NETBIOS Name Service |
| 138 | TCP, UDP | netbios-dgm | NETBIOS Datagram Service |
| 139 | TCP, UDP | netbios-ssn | NETBIOS Session Service |
| 140 | TCP, UDP | emfis-data | EMFIS Data Service |
| 141 | TCP, UDP | emfis-cntl | EMFIS Control Service |
| 142 | TCP, UDP | bl-idm | Britton-Lee IDM |
| 143 | TCP, UDP | imap | Internet Message Access Protocol |
| 144 | TCP, UDP | uma | Universal Management Architecture |
| 145 | TCP, UDP | uaac | UAAC Protocol |
| 146 | TCP, UDP | iso-tp0 | ISO-IP0 |
| 147 | TCP, UDP | iso-ip | ISO-IP |
| 148 | TCP, UDP | jargon | Jargon |
| 149 | TCP, UDP | aed-512 | AED 512 Emulation Service |
| 150 | TCP, UDP | sql-net | SQL-NET |
| 151 | TCP, UDP | hems | HEMS |
| 152 | TCP, UDP | bftp | Background File Transfer Program |
| 153 | TCP, UDP | sgmp | SGMP |
| 154 | TCP, UDP | netsc-prod | NETSC |
| 155 | TCP, UDP | netsc-dev | NETSC |
| 156 | TCP, UDP | sqlsrv | SQL Service |
| 157 | TCP, UDP | knet-cmp | KNET/VM Command/Message Protocol |
| 158 | TCP, UDP | pcmail-srv | PCMail Server |
| 159 | TCP, UDP | nss-routing | NSS-Routing |
| 160 | TCP, UDP | sgmp-traps | SGMP-TRAPS |
| 161 | TCP, UDP | snmp | SNMP |
| 162 | TCP, UDP | snmptrap | SNMPTRAP |
| 163 | TCP, UDP | cmip-man | CMIP/TCP Manager |
| 164 | TCP, UDP | cmip-agent | CMIP/TCP Agent |
| 165 | TCP, UDP | xns-courier | Xerox |
| 166 | TCP, UDP | s-net | Sirius Systems |
| 167 | TCP, UDP | namp | NAMP |
| 168 | TCP, UDP | rsvd | RSVD |
| 169 | TCP, UDP | send | SEND |
| 170 | TCP, UDP | print-srv | Network PostScript |
| 171 | TCP, UDP | multiplex | Network Innovations Multiplex |
| 172 | TCP, UDP | cl-1, cl/1 | Network Innovations CL/1 IANA assigned this well-formed service name as a replacement for "cl/1". |
| 173 | TCP, UDP | xyplex-mux | Xyplex |
| 174 | TCP, UDP | mailq | MAILQ |
| 175 | TCP, UDP | vmnet | VMNET |
| 176 | TCP, UDP | genrad-mux | GENRAD-MUX |
| 177 | TCP, UDP | xdmcp | X Display Manager Control Protocol |
| 178 | TCP, UDP | nextstep | NextStep Window Server |
| 179 | SCTP, TCP, UDP | bgp | Border Gateway Protocol |
| 180 | TCP, UDP | ris | Intergraph |
| 181 | TCP, UDP | unify | Unify |
| 182 | TCP, UDP | audit | Unisys Audit SITP |
| 183 | TCP, UDP | ocbinder | OCBinder |
| 184 | TCP, UDP | ocserver | OCServer |
| 185 | TCP, UDP | remote-kis | Remote-KIS |
| 186 | TCP, UDP | kis | KIS Protocol |
| 187 | TCP, UDP | aci | Application Communication Interface |
| 188 | TCP, UDP | mumps | Plus Five's MUMPS |
| 189 | TCP, UDP | qft | Queued File Transport |
| 190 | TCP, UDP | gacp | Gateway Access Control Protocol |
| 191 | TCP, UDP | prospero | Prospero Directory Service |
| 192 | TCP, UDP | osu-nms | OSU Network Monitoring System |
| 193 | TCP, UDP | srmp | Spider Remote Monitoring Protocol |
| 194 | TCP, UDP | irc | Internet Relay Chat Protocol |
| 195 | TCP, UDP | dn6-nlm-aud | DNSIX Network Level Module Audit |
| 196 | TCP, UDP | dn6-smm-red | DNSIX Session Mgt Module Audit Redir |
| 197 | TCP, UDP | dls | Directory Location Service |
| 198 | TCP, UDP | dls-mon | Directory Location Service Monitor |
| 199 | TCP, UDP | smux | SMUX |
| 200 | TCP, UDP | src | IBM System Resource Controller |
| 201 | TCP, UDP | at-rtmp | AppleTalk Routing Maintenance |
| 202 | TCP, UDP | at-nbp | AppleTalk Name Binding |
| 203 | TCP, UDP | at-3 | AppleTalk Unused |
| 204 | TCP, UDP | at-echo | AppleTalk Echo |
| 205 | TCP, UDP | at-5 | AppleTalk Unused |
| 206 | TCP, UDP | at-zis | AppleTalk Zone Information |
| 207 | TCP, UDP | at-7 | AppleTalk Unused |
| 208 | TCP, UDP | at-8 | AppleTalk Unused |
| 209 | TCP, UDP | qmtp | The Quick Mail Transfer Protocol |
| 210 | TCP, UDP | z39-50, z39.50 | ANSI Z39.50 IANA assigned this well-formed service name as a replacement for "z39.50". |
| 211 | TCP, UDP | 914c-g, 914c/g | Texas Instruments 914C/G Terminal IANA assigned this well-formed service name as a replacement for "914c/g". |
| 212 | TCP, UDP | anet | ATEXSSTR |
| 213 | TCP, UDP | ipx | IPX |
| 214 | TCP, UDP | vmpwscs | VM PWSCS |
| 215 | TCP, UDP | softpc | Insignia Solutions |
| 216 | TCP, UDP | CAIlic | Computer Associates Int'l License Server |
| 217 | TCP, UDP | dbase | dBASE Unix |
| 218 | TCP, UDP | mpp | Netix Message Posting Protocol |
| 219 | TCP, UDP | uarps | Unisys ARPs |
| 220 | TCP, UDP | imap3 | Interactive Mail Access Protocol v3 |
| 221 | TCP, UDP | fln-spx | Berkeley rlogind with SPX auth |
| 222 | TCP, UDP | rsh-spx | Berkeley rshd with SPX auth |
| 223 | TCP, UDP | cdc | Certificate Distribution Center |
| 224 | TCP, UDP | masqdialer | masqdialer |
| 225 | | | Reserved |
| 226 | | | Reserved |
| 227 | | | Reserved |
| 228 | | | Reserved |
| 229 | | | Reserved |
| 230 | | | Reserved |
| 231 | | | Reserved |
| 232 | | | Reserved |
| 233 | | | Reserved |
| 234 | | | Reserved |
| 235 | | | Reserved |
| 236 | | | Reserved |
| 237 | | | Reserved |
| 238 | | | Reserved |
| 239 | | | Reserved |
| 240 | | | Reserved |
| 241 | | | Reserved |
| 242 | TCP, UDP | direct | Direct |
| 243 | TCP, UDP | sur-meas | Survey Measurement |
| 244 | TCP, UDP | inbusiness | inbusiness |
| 245 | TCP, UDP | link | LINK |
| 246 | TCP, UDP | dsp3270 | Display Systems Protocol |
| 247 | TCP, UDP | subntbcst-tftp, subntbcst_tftp | SUBNTBCST_TFTP IANA assigned this well-formed service name as a replacement for "subntbcst_tftp". |
| 248 | TCP, UDP | bhfhs | bhfhs |
| 249 | | | Reserved |
| 250 | | | Reserved |
| 251 | | | Reserved |
| 252 | | | Reserved |
| 253 | | | Reserved |
| 254 | | | Reserved |
| 255 | | | Reserved |
| 256 | TCP, UDP | rap | RAP |
| 257 | TCP, UDP | set | Secure Electronic Transaction |
| 259 | TCP, UDP | esro-gen | Efficient Short Remote Operations |
| 260 | TCP, UDP | openport | Openport |
| 261 | TCP, UDP | nsiiops | IIOP Name Service over TLS/SSL |
| 262 | TCP, UDP | arcisdms | Arcisdms |
| 263 | TCP, UDP | hdap | HDAP |
| 264 | TCP, UDP | bgmp | BGMP |
| 265 | TCP, UDP | x-bone-ctl | X-Bone CTL |
| 266 | TCP, UDP | sst | SCSI on ST |
| 267 | TCP, UDP | td-service | Tobit David Service Layer |
| 268 | TCP, UDP | td-replica | Tobit David Replica |
| 269 | TCP, UDP | manet | MANET Protocols |
| 270 | TCP, UDP | gist | Reserved |
| 271 | TCP, UDP | pt-tls | IETF Network Endpoint Assessment (NEA) Posture Transport Protocol over TLS (PT-TLS) |
| 280 | TCP, UDP | http-mgmt | http-mgmt |
| 281 | TCP, UDP | personal-link | Personal Link |
| 282 | TCP, UDP | cableport-ax | Cable Port A/X |
| 283 | TCP, UDP | rescap | rescap |
| 284 | TCP, UDP | corerjd | corerjd |
| 286 | TCP, UDP | fxp | FXP Communication |
| 287 | TCP, UDP | k-block | K-BLOCK |
| 300 | TCP, UDP | tacacss | TLS Secure Login Host Protocol (TACACSS) |
| 308 | TCP, UDP | novastorbakcup | Novastor Backup |
| 309 | TCP, UDP | entrusttime | EntrustTime |
| 310 | TCP, UDP | bhmds | bhmds |
| 311 | TCP, UDP | asip-webadmin | AppleShare IP WebAdmin |
| 312 | TCP, UDP | vslmp | VSLMP |
| 313 | TCP, UDP | magenta-logic | Magenta Logic |
| 314 | TCP, UDP | opalis-robot | Opalis Robot |
| 315 | TCP, UDP | dpsi | DPSI |
| 316 | TCP, UDP | decauth | decAuth |
| 317 | TCP, UDP | zannet | Zannet |
| 318 | TCP, UDP | pkix-timestamp | PKIX TimeStamp |
| 319 | TCP, UDP | ptp-event | PTP Event |
| 320 | TCP, UDP | ptp-general | PTP General |
| 321 | TCP, UDP | pip | PIP |
| 322 | TCP, UDP | rtsps | RTSPS |
| 323 | TCP, UDP | rpki-rtr | Resource PKI to Router Protocol |
| 324 | TCP, UDP | rpki-rtr-tls | Resource PKI to Router Protocol over TLS |
| 333 | TCP, UDP | texar | Texar Security Port |
| 344 | TCP, UDP | pdap | Prospero Data Access Protocol |
| 345 | TCP, UDP | pawserv | Perf Analysis Workbench |
| 346 | TCP, UDP | zserv | Zebra server |
| 347 | TCP, UDP | fatserv | Fatmen Server |
| 348 | TCP, UDP | csi-sgwp | Cabletron Management Protocol |
| 349 | TCP, UDP | mftp | mftp |
| 350 | TCP, UDP | matip-type-a | MATIP Type A |
| 351 | TCP, UDP | bhoetty, matip-type-b | MATIP Type B |
| 352 | TCP, UDP | bhoedap4, dtag-ste-sb | DTAG |
| 353 | TCP, UDP | ndsauth | NDSAUTH |
| 354 | TCP, UDP | bh611 | bh611 |
| 355 | TCP, UDP | datex-asn | DATEX-ASN |
| 356 | TCP, UDP | cloanto-net-1 | Cloanto Net 1 |
| 357 | TCP, UDP | bhevent | bhevent |
| 358 | TCP, UDP | shrinkwrap | Shrinkwrap |
| 359 | TCP, UDP | | Reserved |
| 360 | TCP, UDP | scoi2odialog | scoi2odialog |
| 361 | TCP, UDP | semantix | Semantix |
| 362 | TCP, UDP | srssend | SRS Send |
| 363 | TCP, UDP | rsvp-tunnel, rsvp_tunnel | RSVP Tunnel IANA assigned this well-formed service name as a replacement for "rsvp_tunnel". |
| 364 | TCP, UDP | aurora-cmgr | Aurora CMGR |
| 365 | TCP, UDP | dtk | DTK |
| 366 | TCP, UDP | odmr | ODMR |
| 367 | TCP, UDP | mortgageware | MortgageWare |
| 368 | TCP, UDP | qbikgdp | QbikGDP |
| 369 | TCP, UDP | rpc2portmap | rpc2portmap |
| 370 | TCP, UDP | codaauth2 | codaauth2 |
| 371 | TCP, UDP | clearcase | Clearcase |
| 372 | TCP, UDP | ulistproc | ListProcessor |
| 373 | TCP, UDP | legent-1 | Legent Corporation |
| 374 | TCP, UDP | legent-2 | Legent Corporation |
| 375 | TCP, UDP | hassle | Hassle |
| 376 | TCP, UDP | nip | Amiga Envoy Network Inquiry Protocol |
| 377 | TCP, UDP | tnETOS | NEC Corporation |
| 378 | TCP, UDP | dsETOS | NEC Corporation |
| 379 | TCP, UDP | is99c | TIA/EIA/IS-99 modem client |
| 380 | TCP, UDP | is99s | TIA/EIA/IS-99 modem server |
| 381 | TCP, UDP | hp-collector | hp performance data collector |
| 382 | TCP, UDP | hp-managed-node | hp performance data managed node |
| 383 | TCP, UDP | hp-alarm-mgr | hp performance data alarm manager |
| 384 | TCP, UDP | arns | A Remote Network Server System |
| 385 | TCP, UDP | ibm-app | IBM Application |
| 386 | TCP, UDP | asa | ASA Message Router Object Def. |
| 387 | TCP, UDP | aurp | Appletalk Update-Based Routing Pro. |
| 388 | TCP, UDP | unidata-ldm | Unidata LDM |
| 389 | TCP, UDP | ldap | Lightweight Directory Access Protocol |
| 390 | TCP, UDP | uis | UIS |
| 391 | TCP, UDP | synotics-relay | SynOptics SNMP Relay Port |
| 392 | TCP, UDP | synotics-broker | SynOptics Port Broker Port |
| 393 | TCP, UDP | meta5 | Meta5 |
| 394 | TCP, UDP | embl-ndt | EMBL Nucleic Data Transfer |
| 395 | TCP, UDP | netcp | NetScout Control Protocol |
| 396 | TCP, UDP | netware-ip | Novell Netware over IP |
| 397 | TCP, UDP | mptn | Multi Protocol Trans. Net. |
| 398 | TCP, UDP | kryptolan | Kryptolan |
| 399 | TCP, UDP | iso-tsap-c2 | ISO Transport Class 2 Non-Control over TCP |
| 400 | TCP, UDP | osb-sd | Oracle Secure Backup |
| 401 | TCP, UDP | ups | Uninterruptible Power Supply |
| 402 | TCP, UDP | genie | Genie Protocol |
| 403 | TCP, UDP | decap | decap |
| 404 | TCP, UDP | nced | nced |
| 405 | TCP, UDP | ncld | ncld |
| 406 | TCP, UDP | imsp | Interactive Mail Support Protocol |
| 407 | TCP, UDP | timbuktu | Timbuktu |
| 408 | TCP, UDP | prm-sm | Prospero Resource Manager Sys. Man. |
| 409 | TCP, UDP | prm-nm | Prospero Resource Manager Node Man. |
| 410 | TCP, UDP | decladebug | DECLadebug Remote Debug Protocol |
| 411 | TCP, UDP | rmt | Remote MT Protocol |
| 412 | TCP, UDP | synoptics-trap | Trap Convention Port |
| 413 | TCP, UDP | smsp | Storage Management Services Protocol |
| 414 | TCP, UDP | infoseek | InfoSeek |
| 415 | TCP, UDP | bnet | BNet |
| 416 | TCP, UDP | silverplatter | Silverplatter |
| 417 | TCP, UDP | onmux | Onmux |
| 418 | TCP, UDP | hyper-g | Hyper-G |
| 419 | TCP, UDP | ariel1 | Ariel 1 |
| 420 | TCP, UDP | smpte | SMPTE |
| 421 | TCP, UDP | ariel2 | Ariel 2 |
| 422 | TCP, UDP | ariel3 | Ariel 3 |
| 423 | TCP, UDP | opc-job-start | IBM Operations Planning and Control Start |
| 424 | TCP, UDP | opc-job-track | IBM Operations Planning and Control Track |
| 425 | TCP, UDP | icad-el | ICAD |
| 426 | TCP, UDP | smartsdp | smartsdp |
| 427 | TCP, UDP | svrloc | Server Location |
| 428 | TCP, UDP | ocs-cmu, ocs_cmu | OCS_CMU IANA assigned this well-formed service name as a replacement for "ocs_cmu". |
| 429 | TCP, UDP | ocs-amu, ocs_amu | OCS_AMU IANA assigned this well-formed service name as a replacement for "ocs_amu". |
| 430 | TCP, UDP | utmpsd | UTMPSD |
| 431 | TCP, UDP | utmpcd | UTMPCD |
| 432 | TCP, UDP | iasd | IASD |
| 433 | TCP, UDP | nnsp | NNTP for transit servers (NNSP) |
| 434 | TCP, UDP | mobileip-agent | MobileIP-Agent |
| 435 | TCP, UDP | mobilip-mn | MobilIP-MN |
| 436 | TCP, UDP | dna-cml | DNA-CML |
| 437 | TCP, UDP | comscm | comscm |
| 438 | TCP, UDP | dsfgw | dsfgw |
| 439 | TCP, UDP | dasp | dasp |
| 440 | TCP, UDP | sgcp | sgcp |
| 441 | TCP, UDP | decvms-sysmgt | decvms-sysmgt |
| 442 | TCP, UDP | cvc-hostd, cvc_hostd | cvc_hostd IANA assigned this well-formed service name as a replacement for "cvc_hostd". |
| 443 | SCTP, TCP, UDP | https | http protocol over TLS/SSL |
| 444 | TCP, UDP | snpp | Simple Network Paging Protocol |
| 445 | TCP, UDP | microsoft-ds | Microsoft-DS |
| 446 | TCP, UDP | ddm-rdb | DDM-Remote Relational Database Access |
| 447 | TCP, UDP | ddm-dfm | DDM-Distributed File Management |
| 448 | TCP, UDP | ddm-ssl | DDM-Remote DB Access Using Secure Sockets |
| 449 | TCP, UDP | as-servermap | AS Server Mapper |
| 450 | TCP, UDP | tserver | Computer Supported Telecomunication Applications |
| 451 | TCP, UDP | sfs-smp-net | Cray Network Semaphore server |
| 452 | TCP, UDP | sfs-config | Cray SFS config server |
| 453 | TCP, UDP | creativeserver | CreativeServer |
| 454 | TCP, UDP | contentserver | ContentServer |
| 455 | TCP, UDP | creativepartnr | CreativePartnr |
| 456 | TCP, UDP | macon-tcp, macon-udp | macon-tcp |
| 457 | TCP, UDP | scohelp | scohelp |
| 458 | TCP, UDP | appleqtc | apple quick time |
| 459 | TCP, UDP | ampr-rcmd | ampr-rcmd |
| 460 | TCP, UDP | skronk | skronk |
| 461 | TCP, UDP | datasurfsrv | DataRampSrv |
| 462 | TCP, UDP | datasurfsrvsec | DataRampSrvSec |
| 463 | TCP, UDP | alpes | alpes |
| 464 | TCP, UDP | kpasswd | kpasswd |
| 465 | TCP, UDP | igmpv3lite, submissions, urd | URL Rendezvous Directory for SSM |
| 466 | TCP, UDP | digital-vrc | digital-vrc |
| 467 | TCP, UDP | mylex-mapd | mylex-mapd |
| 468 | TCP, UDP | photuris | proturis |
| 469 | TCP, UDP | rcp | Radio Control Protocol |
| 470 | TCP, UDP | scx-proxy | scx-proxy |
| 471 | TCP, UDP | mondex | Mondex |
| 472 | TCP, UDP | ljk-login | ljk-login |
| 473 | TCP, UDP | hybrid-pop | hybrid-pop |
| 474 | TCP, UDP | tn-tl-w1, tn-tl-w2 | tn-tl-w1 |
| 475 | TCP, UDP | tcpnethaspsrv | tcpnethaspsrv |
| 476 | TCP, UDP | tn-tl-fd1 | tn-tl-fd1 |
| 477 | TCP, UDP | ss7ns | ss7ns |
| 478 | TCP, UDP | spsc | spsc |
| 479 | TCP, UDP | iafserver | iafserver |
| 480 | TCP, UDP | iafdbase | iafdbase |
| 481 | TCP, UDP | ph | Ph service |
| 482 | TCP, UDP | bgs-nsi | bgs-nsi |
| 483 | TCP, UDP | ulpnet | ulpnet |
| 484 | TCP, UDP | integra-sme | Integra Software Management Environment |
| 485 | TCP, UDP | powerburst | Air Soft Power Burst |
| 486 | TCP, UDP | avian | avian |
| 487 | TCP, UDP | saft | saft Simple Asynchronous File Transfer |
| 488 | TCP, UDP | gss-http | gss-http |
| 489 | TCP, UDP | nest-protocol | nest-protocol |
| 490 | TCP, UDP | micom-pfs | micom-pfs |
| 491 | TCP, UDP | go-login | go-login |
| 492 | TCP, UDP | ticf-1 | Transport Independent Convergence for FNA |
| 493 | TCP, UDP | ticf-2 | Transport Independent Convergence for FNA |
| 494 | TCP, UDP | pov-ray | POV-Ray |
| 495 | TCP, UDP | intecourier | intecourier |
| 496 | TCP, UDP | pim-rp-disc | PIM-RP-DISC |
| 497 | TCP, UDP | retrospect | Retrospect backup and restore service |
| 498 | TCP, UDP | siam | siam |
| 499 | TCP, UDP | iso-ill | ISO ILL Protocol |
| 500 | TCP, UDP | isakmp | isakmp |
| 501 | TCP, UDP | stmf | STMF |
| 502 | TCP, UDP | mbap | Modbus Application Protocol |
| 503 | TCP, UDP | intrinsa | Intrinsa |
| 504 | TCP, UDP | citadel | citadel |
| 505 | TCP, UDP | mailbox-lm | mailbox-lm |
| 506 | TCP, UDP | ohimsrv | ohimsrv |
| 507 | TCP, UDP | crs | crs |
| 508 | TCP, UDP | xvttp | xvttp |
| 509 | TCP, UDP | snare | snare |
| 510 | TCP, UDP | fcp | FirstClass Protocol |
| 511 | TCP, UDP | passgo | PassGo |
| 512 | TCP, UDP | biff, comsat, exec | remote process execution; authentication performed using passwords and UNIX login names |
| 513 | TCP, UDP | login, who | remote login a la telnet; automatic authentication performed based on priviledged port numbers and distributed data bases which identify "authentication domains" |
| 514 | TCP, UDP | shell, syslog | cmd like exec, but automatic authentication is performed as for login server |
| 515 | TCP, UDP | printer | spooler |
| 516 | TCP, UDP | videotex | videotex |
| 517 | TCP, UDP | talk | like tenex link, but across machine - unfortunately, doesn't use link protocol (this is actually just a rendezvous port from which a tcp connection is established) |
| 518 | TCP, UDP | ntalk | |
| 519 | TCP, UDP | utime | unixtime |
| 520 | TCP, UDP | efs, router | extended file name server |
| 521 | TCP, UDP | ripng | ripng |
| 522 | TCP, UDP | ulp | ULP |
| 523 | TCP, UDP | ibm-db2 | IBM-DB2 |
| 524 | TCP, UDP | ncp | NCP |
| 525 | TCP, UDP | timed | timeserver |
| 526 | TCP, UDP | tempo | newdate |
| 527 | TCP, UDP | stx | Stock IXChange |
| 528 | TCP, UDP | custix | Customer IXChange |
| 529 | TCP, UDP | irc-serv | IRC-SERV |
| 530 | TCP, UDP | courier | rpc |
| 531 | TCP, UDP | conference | chat |
| 532 | TCP, UDP | netnews | readnews |
| 533 | TCP, UDP | netwall | for emergency broadcasts |
| 534 | TCP, UDP | windream | windream Admin |
| 535 | TCP, UDP | iiop | iiop |
| 536 | TCP, UDP | opalis-rdv | opalis-rdv |
| 537 | TCP, UDP | nmsp | Networked Media Streaming Protocol |
| 538 | TCP, UDP | gdomap | gdomap |
| 539 | TCP, UDP | apertus-ldp | Apertus Technologies Load Determination |
| 540 | TCP, UDP | uucp | uucpd |
| 541 | TCP, UDP | uucp-rlogin | uucp-rlogin |
| 542 | TCP, UDP | commerce | commerce |
| 543 | TCP, UDP | klogin | |
| 544 | TCP, UDP | kshell | krcmd |
| 545 | TCP, UDP | appleqtcsrvr | appleqtcsrvr |
| 546 | TCP, UDP | dhcpv6-client | DHCPv6 Client |
| 547 | TCP, UDP | dhcpv6-server | DHCPv6 Server |
| 548 | TCP, UDP | afpovertcp | AFP over TCP |
| 549 | TCP, UDP | idfp | IDFP |
| 550 | TCP, UDP | new-rwho | new-who |
| 551 | TCP, UDP | cybercash | cybercash |
| 552 | TCP, UDP | devshr-nts | DeviceShare |
| 553 | TCP, UDP | pirp | pirp |
| 554 | TCP, UDP | rtsp | Real Time Streaming Protocol (RTSP) |
| 555 | TCP, UDP | dsf | |
| 556 | TCP, UDP | remotefs | rfs server |
| 557 | TCP, UDP | openvms-sysipc | openvms-sysipc |
| 558 | TCP, UDP | sdnskmp | SDNSKMP |
| 559 | TCP, UDP | teedtap | TEEDTAP |
| 560 | TCP, UDP | rmonitor | rmonitord |
| 561 | TCP, UDP | monitor | |
| 562 | TCP, UDP | chshell | chcmd |
| 563 | TCP, UDP | nntps | nntp protocol over TLS/SSL (was snntp) |
| 564 | TCP, UDP | 9pfs | plan 9 file service |
| 565 | TCP, UDP | whoami | whoami |
| 566 | TCP, UDP | streettalk | streettalk |
| 567 | TCP, UDP | banyan-rpc | banyan-rpc |
| 568 | TCP, UDP | ms-shuttle | microsoft shuttle |
| 569 | TCP, UDP | ms-rome | microsoft rome |
| 570 | TCP, UDP | meter | demon |
| 571 | TCP, UDP | meter | udemon |
| 572 | TCP, UDP | sonar | sonar |
| 573 | TCP, UDP | banyan-vip | banyan-vip |
| 574 | TCP, UDP | ftp-agent | FTP Software Agent System |
| 575 | TCP, UDP | vemmi | VEMMI |
| 576 | TCP, UDP | ipcd | ipcd |
| 577 | TCP, UDP | vnas | vnas |
| 578 | TCP, UDP | ipdd | ipdd |
| 579 | TCP, UDP | decbsrv | decbsrv |
| 580 | TCP, UDP | sntp-heartbeat | SNTP HEARTBEAT |
| 581 | TCP, UDP | bdp | Bundle Discovery Protocol |
| 582 | TCP, UDP | scc-security | SCC Security |
| 583 | TCP, UDP | philips-vc | Philips Video-Conferencing |
| 584 | TCP, UDP | keyserver | Key Server |
| 585 | | | De-registered |
| 586 | TCP, UDP | password-chg | Password Change |
| 587 | TCP, UDP | submission | Message Submission |
| 588 | TCP, UDP | cal | CAL |
| 589 | TCP, UDP | eyelink | EyeLink |
| 590 | TCP, UDP | tns-cml | TNS CML |
| 591 | TCP, UDP | http-alt | FileMaker, Inc. - HTTP Alternate (see Port 80) |
| 592 | TCP, UDP | eudora-set | Eudora Set |
| 593 | TCP, UDP | http-rpc-epmap | HTTP RPC Ep Map |
| 594 | TCP, UDP | tpip | TPIP |
| 595 | TCP, UDP | cab-protocol | CAB Protocol |
| 596 | TCP, UDP | smsd | SMSD |
| 597 | TCP, UDP | ptcnameservice | PTC Name Service |
| 598 | TCP, UDP | sco-websrvrmg3 | SCO Web Server Manager 3 |
| 599 | TCP, UDP | acp | Aeolon Core Protocol |
| 600 | TCP, UDP | ipcserver | Sun IPC server |
| 601 | TCP, UDP | syslog-conn | Reliable Syslog Service |
| 602 | TCP, UDP | xmlrpc-beep | XML-RPC over BEEP |
| 603 | TCP, UDP | idxp | IDXP |
| 604 | TCP, UDP | tunnel | TUNNEL |
| 605 | TCP, UDP | soap-beep | SOAP over BEEP |
| 606 | TCP, UDP | urm | Cray Unified Resource Manager |
| 607 | TCP, UDP | nqs | nqs |
| 608 | TCP, UDP | sift-uft | Sender-Initiated/Unsolicited File Transfer |
| 609 | TCP, UDP | npmp-trap | npmp-trap |
| 610 | TCP, UDP | npmp-local | npmp-local |
| 611 | TCP, UDP | npmp-gui | npmp-gui |
| 612 | TCP, UDP | hmmp-ind | HMMP Indication |
| 613 | TCP, UDP | hmmp-op | HMMP Operation |
| 614 | TCP, UDP | sshell | SSLshell |
| 615 | TCP, UDP | sco-inetmgr | Internet Configuration Manager |
| 616 | TCP, UDP | sco-sysmgr | SCO System Administration Server |
| 617 | TCP, UDP | sco-dtmgr | SCO Desktop Administration Server |
| 618 | TCP, UDP | dei-icda | DEI-ICDA |
| 619 | TCP, UDP | compaq-evm | Compaq EVM |
| 620 | TCP, UDP | sco-websrvrmgr | SCO WebServer Manager |
| 621 | TCP, UDP | escp-ip | ESCP |
| 622 | TCP, UDP | collaborator | Collaborator |
| 623 | TCP, UDP | asf-rmcp, oob-ws-http | DMTF out-of-band web services management protocol |
| 624 | TCP, UDP | cryptoadmin | Crypto Admin |
| 625 | TCP, UDP | dec-dlm, dec_dlm | DEC DLM IANA assigned this well-formed service name as a replacement for "dec_dlm". |
| 626 | TCP, UDP | asia | ASIA |
| 627 | TCP, UDP | passgo-tivoli | PassGo Tivoli |
| 628 | TCP, UDP | qmqp | QMQP |
| 629 | TCP, UDP | 3com-amp3 | 3Com AMP3 |
| 630 | TCP, UDP | rda | RDA |
| 631 | TCP, UDP | ipp, ipps | IPP (Internet Printing Protocol) |
| 632 | TCP, UDP | bmpp | bmpp |
| 633 | TCP, UDP | servstat | Service Status update (Sterling Software) |
| 634 | TCP, UDP | ginad | ginad |
| 635 | TCP, UDP | rlzdbase | RLZ DBase |
| 636 | TCP, UDP | ldaps | ldap protocol over TLS/SSL (was sldap) |
| 637 | TCP, UDP | lanserver | lanserver |
| 638 | TCP, UDP | mcns-sec | mcns-sec |
| 639 | TCP, UDP | msdp | MSDP |
| 640 | TCP, UDP | entrust-sps | entrust-sps |
| 641 | TCP, UDP | repcmd | repcmd |
| 642 | TCP, UDP | esro-emsdp | ESRO-EMSDP V1.3 |
| 643 | TCP, UDP | sanity | SANity |
| 644 | TCP, UDP | dwr | dwr |
| 645 | TCP, UDP | pssc | PSSC |
| 646 | TCP, UDP | ldp | LDP |
| 647 | TCP, UDP | dhcp-failover | DHCP Failover |
| 648 | TCP, UDP | rrp | Registry Registrar Protocol (RRP) |
| 649 | TCP, UDP | cadview-3d | Cadview-3d - streaming 3d models over the internet |
| 650 | TCP, UDP | obex | OBEX |
| 651 | TCP, UDP | ieee-mms | IEEE MMS |
| 652 | TCP, UDP | hello-port | HELLO_PORT |
| 653 | TCP, UDP | repscmd | RepCmd |
| 654 | TCP, UDP | aodv | AODV |
| 655 | TCP, UDP | tinc | TINC |
| 656 | TCP, UDP | spmp | SPMP |
| 657 | TCP, UDP | rmc | RMC |
| 658 | TCP, UDP | tenfold | TenFold |
| 659 | | | Removed |
| 660 | TCP, UDP | mac-srvr-admin | MacOS Server Admin |
| 661 | TCP, UDP | hap | HAP |
| 662 | TCP, UDP | pftp | PFTP |
| 663 | TCP, UDP | purenoise | PureNoise |
| 664 | TCP, UDP | asf-secure-rmcp, oob-ws-https | DMTF out-of-band secure web services management protocol |
| 665 | TCP, UDP | sun-dr | Sun DR |
| 666 | TCP, UDP | doom, mdqs | |
| 667 | TCP, UDP | disclose | campaign contribution disclosures - SDR Technologies |
| 668 | TCP, UDP | mecomm | MeComm |
| 669 | TCP, UDP | meregister | MeRegister |
| 670 | TCP, UDP | vacdsm-sws | VACDSM-SWS |
| 671 | TCP, UDP | vacdsm-app | VACDSM-APP |
| 672 | TCP, UDP | vpps-qua | VPPS-QUA |
| 673 | TCP, UDP | cimplex | CIMPLEX |
| 674 | TCP, UDP | acap | ACAP |
| 675 | TCP, UDP | dctp | DCTP |
| 676 | TCP, UDP | vpps-via | VPPS Via |
| 677 | TCP, UDP | vpp | Virtual Presence Protocol |
| 678 | TCP, UDP | ggf-ncp | GNU Generation Foundation NCP |
| 679 | TCP, UDP | mrm | MRM |
| 680 | TCP, UDP | entrust-aaas | entrust-aaas |
| 681 | TCP, UDP | entrust-aams | entrust-aams |
| 682 | TCP, UDP | xfr | XFR |
| 683 | TCP, UDP | corba-iiop | CORBA IIOP |
| 684 | TCP, UDP | corba-iiop-ssl | CORBA IIOP SSL |
| 685 | TCP, UDP | mdc-portmapper | MDC Port Mapper |
| 686 | TCP, UDP | hcp-wismar | Hardware Control Protocol Wismar |
| 687 | TCP, UDP | asipregistry | asipregistry |
| 688 | TCP, UDP | realm-rusd | ApplianceWare managment protocol |
| 689 | TCP, UDP | nmap | NMAP |
| 690 | TCP, UDP | vatp | Velneo Application Transfer Protocol |
| 691 | TCP, UDP | msexch-routing | MS Exchange Routing |
| 692 | TCP, UDP | hyperwave-isp | Hyperwave-ISP |
| 693 | TCP, UDP | connendp | almanid Connection Endpoint |
| 694 | TCP, UDP | ha-cluster | ha-cluster |
| 695 | TCP, UDP | ieee-mms-ssl | IEEE-MMS-SSL |
| 696 | TCP, UDP | rushd | RUSHD |
| 697 | TCP, UDP | uuidgen | UUIDGEN |
| 698 | TCP, UDP | olsr | OLSR |
| 699 | TCP, UDP | accessnetwork | Access Network |
| 700 | TCP, UDP | epp | Extensible Provisioning Protocol |
| 701 | TCP, UDP | lmp | Link Management Protocol (LMP) |
| 702 | TCP, UDP | iris-beep | IRIS over BEEP |
| 704 | TCP, UDP | elcsd | errlog copy/server daemon |
| 705 | TCP, UDP | agentx | AgentX |
| 706 | TCP, UDP | silc | SILC |
| 707 | TCP, UDP | borland-dsj | Borland DSJ |
| 709 | TCP, UDP | entrust-kmsh | Entrust Key Management Service Handler |
| 710 | TCP, UDP | entrust-ash | Entrust Administration Service Handler |
| 711 | TCP, UDP | cisco-tdp | Cisco TDP |
| 712 | TCP, UDP | tbrpf | TBRPF |
| 713 | TCP, UDP | iris-xpc | IRIS over XPC |
| 714 | TCP, UDP | iris-xpcs | IRIS over XPCS |
| 715 | TCP, UDP | iris-lwz | IRIS-LWZ |
| 716 | UDP | pana | PANA Messages |
| 729 | TCP, UDP | netviewdm1 | IBM NetView DM/6000 Server/Client |
| 730 | TCP, UDP | netviewdm2 | IBM NetView DM/6000 send/tcp |
| 731 | TCP, UDP | netviewdm3 | IBM NetView DM/6000 receive/tcp |
| 741 | TCP, UDP | netgw | netGW |
| 742 | TCP, UDP | netrcs | Network based Rev. Cont. Sys. |
| 744 | TCP, UDP | flexlm | Flexible License Manager |
| 747 | TCP, UDP | fujitsu-dev | Fujitsu Device Control |
| 748 | TCP, UDP | ris-cm | Russell Info Sci Calendar Manager |
| 749 | TCP, UDP | kerberos-adm | kerberos administration |
| 750 | TCP, UDP | kerberos-iv, loadav, rfile | |
| 751 | TCP, UDP | pump | |
| 752 | TCP, UDP | qrh | |
| 753 | TCP, UDP | rrh | |
| 754 | TCP, UDP | tell | send |
| 758 | TCP, UDP | nlogin | |
| 759 | TCP, UDP | con | |
| 760 | TCP, UDP | ns | |
| 761 | TCP, UDP | rxe | |
| 762 | TCP, UDP | quotad | |
| 763 | TCP, UDP | cycleserv | |
| 764 | TCP, UDP | omserv | |
| 765 | TCP, UDP | webster | |
| 767 | TCP, UDP | phonebook | phone |
| 769 | TCP, UDP | vid | |
| 770 | TCP, UDP | cadlock | |
| 771 | TCP, UDP | rtip | |
| 772 | TCP, UDP | cycleserv2 | |
| 773 | TCP, UDP | notify, submit | |
| 774 | TCP, UDP | acmaint-dbd, acmaint_dbd, rpasswd | |
| 775 | TCP, UDP | acmaint-transd, acmaint_transd, entomb | |
| 776 | TCP, UDP | wpages | |
| 777 | TCP, UDP | multiling-http | Multiling HTTP |
| 780 | TCP, UDP | wpgs | |
| 800 | TCP, UDP | mdbs-daemon, mdbs_daemon | IANA assigned this well-formed service name as a replacement for "mdbs_daemon". |
| 801 | TCP, UDP | device | |
| 802 | TCP, UDP | mbap-s | Modbus Application Protocol Secure |
| 810 | TCP, UDP | fcp-udp | FCP |
| 828 | TCP, UDP | itm-mcell-s | itm-mcell-s |
| 829 | TCP, UDP | pkix-3-ca-ra | PKIX-3 CA/RA |
| 830 | TCP, UDP | netconf-ssh | NETCONF over SSH |
| 831 | TCP, UDP | | Reserved |
| 832 | TCP, UDP | | Reserved |
| 833 | TCP, UDP | | Reserved |
| 847 | TCP, UDP | dhcp-failover2 | dhcp-failover 2 |
| 848 | TCP, UDP | gdoi | GDOI |
| 853 | TCP, UDP | domain-s | DNS query-response protocol run over TLS |
| 854 | TCP, UDP | dlep | Dynamic Link Exchange Protocol (DLEP) |
| 860 | TCP, UDP | iscsi | iSCSI |
| 861 | TCP, UDP | owamp-control, owamp-test | OWAMP-Control |
| 862 | TCP, UDP | twamp-control, twamp-test | TWAMP-Control |
| 873 | TCP, UDP | rsync | rsync |
| 886 | TCP, UDP | iclcnet-locate | ICL coNETion locate server |
| 887 | TCP, UDP | iclcnet-svinfo, iclcnet_svinfo | ICL coNETion server info IANA assigned this well-formed service name as a replacement for "iclcnet_svinfo". |
| 888 | TCP, UDP | accessbuilder, cddbp | AccessBuilder |
| 900 | TCP, UDP | omginitialrefs | OMG Initial Refs |
| 901 | TCP, UDP | smpnameres | SMPNAMERES |
| 902 | TCP, UDP | ideafarm-door | self documenting Telnet Door |
| 903 | TCP, UDP | ideafarm-panic | self documenting Telnet Panic Door |
| 910 | TCP, UDP | kink | Kerberized Internet Negotiation of Keys (KINK) |
| 911 | TCP, UDP | xact-backup | xact-backup |
| 912 | TCP, UDP | apex-mesh | APEX relay-relay service |
| 913 | TCP, UDP | apex-edge | APEX endpoint-relay service |
| 914 | TCP, UDP | rift-lies | Reserved |
| 915 | TCP, UDP | rift-ties | Reserved |
| 953 | TCP, UDP | rndc | BIND9 remote name daemon controller |
| 989 | TCP, UDP | ftps-data | ftp protocol, data, over TLS/SSL |
| 990 | TCP, UDP | ftps | ftp protocol, control, over TLS/SSL |
| 991 | TCP, UDP | nas | Netnews Administration System |
| 992 | TCP, UDP | telnets | telnet protocol over TLS/SSL |
| 993 | TCP, UDP | imaps | IMAP over TLS protocol |
| 994 | TCP, UDP | | Reserved |
| 995 | TCP, UDP | pop3s | POP3 over TLS protocol |
| 996 | TCP, UDP | vsinet | vsinet |
| 997 | TCP, UDP | maitrd | |
| 998 | TCP, UDP | busboy, puparp | |
| 999 | TCP, UDP | applix, garcon, puprouter | |