OUI Lookup
001b19
IEEE I&M Society TC9
Manufacturer Information
- OUI Prefix
- 001b19
- Manufacturer
- IEEE I&M Society TC9
- Address
- 100 Bureau Dr., Mail Stop 8220 Gaithersburg MD US 20899-8220
- Last updated
- 6/11/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 001B19
The OUI prefix 001B19 is assigned to IEEE I&M Society TC9, based in 100 Bureau Dr., Mail Stop 8220 Gaithersburg MD US 20899-8220 . 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 IEEE I&M Society TC9.