OUI Lookup
0021a8
Telephonics Corporation
Manufacturer Information
- OUI Prefix
- 0021a8
- Manufacturer
- Telephonics Corporation
- Address
- 815 Broad Hollow Road Farmingdale New York US 11790
- Last updated
- 6/11/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 0021A8
The OUI prefix 0021A8 is assigned to Telephonics Corporation, based in 815 Broad Hollow Road Farmingdale New York US 11790 . 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 Telephonics Corporation.