OUI Lookup
00103f
TOLLGRADE COMMUNICATIONS, INC.
Manufacturer Information
- OUI Prefix
- 00103f
- Manufacturer
- TOLLGRADE COMMUNICATIONS, INC.
- Address
- 493 NIXON ROAD CHESWICK PA US 15024
- Last updated
- 6/9/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 00103F
The OUI prefix 00103F is assigned to TOLLGRADE COMMUNICATIONS, INC., based in 493 NIXON ROAD CHESWICK PA US 15024 . 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 TOLLGRADE COMMUNICATIONS, INC..