OUI Lookup
0019a7
ITU-T
Manufacturer Information
- OUI Prefix
- 0019a7
- Manufacturer
- ITU-T
- Address
- Place des Nations Geneva 20 CH CH-1211
- Last updated
- 6/11/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 0019A7
The OUI prefix 0019A7 is assigned to ITU-T, based in Place des Nations Geneva 20 CH CH-1211 . It is a MA-L type block of 24 bits (first three octets). Allows up to 16 million unique MAC addresses. If you find this prefix on your network, the devices belong to ITU-T.