OUI Lookup
00503b
MEDIAFIRE CORPORATION
Manufacturer Information
- OUI Prefix
- 00503b
- Manufacturer
- MEDIAFIRE CORPORATION
- Address
- 11317 FREDERICK AVENUE BELTSVILLE MD US 20705
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 00503B
The OUI prefix 00503B is assigned to MEDIAFIRE CORPORATION, based in 11317 FREDERICK AVENUE BELTSVILLE MD US 20705 . 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 MEDIAFIRE CORPORATION.