Ports 20000–20999
| Port | Protokoll | Dienst | Beschreibung (IANA) |
|---|---|---|---|
| 20000 | SCTP, TCP, UDP | dnp | DNP |
| 20001 | TCP, UDP | microsan | MicroSAN |
| 20002 | TCP, UDP | commtact-http | Commtact HTTP |
| 20003 | TCP, UDP | commtact-https | Commtact HTTPS |
| 20005 | TCP, UDP | openwebnet | OpenWebNet protocol for electric network |
| 20012 | TCP, UDP | ss-idi-disc | Reserved |
| 20013 | TCP, UDP | ss-idi | Samsung Interdevice Interaction |
| 20014 | TCP, UDP | opendeploy | OpenDeploy Listener |
| 20034 | TCP, UDP | nburn-id, nburn_id | NetBurner ID Port IANA assigned this well-formed service name as a replacement for "nburn_id". |
| 20046 | TCP, UDP | tmophl7mts | TMOP HL7 Message Transfer Service |
| 20048 | TCP, UDP | mountd | NFS mount protocol |
| 20049 | SCTP, TCP, UDP | nfsrdma | Network File System (NFS) over RDMA |
| 20057 | TCP, UDP | avesterra | AvesTerra Hypergraph Transfer Protocol (HGTP) |
| 20167 | TCP, UDP | tolfab | TOLfab Data Change |
| 20202 | TCP, UDP | ipdtp-port | IPD Tunneling Port |
| 20222 | TCP, UDP | ipulse-ics | iPulse-ICS |
| 20480 | TCP, UDP | emwavemsg | emWave Message Service |
| 20670 | TCP, UDP | track | Track |
| 20810 | TCP, UDP | crtech-nlm | CRTech NLM |
| 20999 | TCP, UDP | athand-mmp | At Hand MMP |