OUI Lookup
0021b0
Tyco Telecommunications
Manufacturer Information
- OUI Prefix
- 0021b0
- Manufacturer
- Tyco Telecommunications
- Address
- 1011 Pawtucket Blvd Lowell Massachusetts US 01853
- Last updated
- 6/11/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 0021B0
The OUI prefix 0021B0 is assigned to Tyco Telecommunications, based in 1011 Pawtucket Blvd Lowell Massachusetts US 01853 . 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 Tyco Telecommunications.