OUI Lookup
40040c
A&T
Manufacturer Information
- OUI Prefix
- 40040c
- Manufacturer
- A&T
- Address
- #411, Will Town, 402-3 Bucheon-Si Gyeonggi-Do KR 420-814
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 40040C
The OUI prefix 40040C is assigned to A&T, based in #411, Will Town, 402-3 Bucheon-Si Gyeonggi-Do KR 420-814 . 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 A&T.