MAC prefix 18:81:ED
| Vendor | Teracom Telematica S.A |
|---|---|
| Short name | TeracomTelem |
| Prefix | 18:81:ED/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 18:81:ED:00:00:00 – 18:81:ED:FF:FF:FF |
| Notations | 18:81:ED:00:00:0018-81-ED-00-00-001881.ed00.00001881ED000000 |
Frequently asked questions
Which vendor does MAC address 18:81:ED belong to?
MAC addresses starting with 18:81:ED are assigned to Teracom Telematica S.A according to the IEEE registry (prefix length 24 bits).
How many addresses does block 18:81:ED contain?
The block contains 16,777,216 addresses from 18:81:ED:00:00:00 to 18:81:ED:FF:FF:FF.
Is 18:81:ED a unicast or multicast address?
The least significant bit of the first byte is 0 – it is a unicast address. The U/L bit is 0, so the address is globally unique (universally administered).
How do I find the MAC address of my device?
On Linux use ip link, on Windows getmac /v or ipconfig /all, on macOS ifconfig. Note: phones and recent operating systems often use random, locally administered addresses on Wi-Fi.
Which other MAC prefixes does Teracom Telematica S.A have?
Teracom Telematica S.A holds 4 registered prefixes in total – the full list is on the vendor page.