OUI Lookup
581cbd
Affinegy
Manufacturer Information
- OUI Prefix
- 581cbd
- Manufacturer
- Affinegy
- Address
- 1705 S. Capital of Texas Hwy. Ste 310 Austin Texas US 78746
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 581CBD
The OUI prefix 581CBD is assigned to Affinegy, based in 1705 S. Capital of Texas Hwy. Ste 310 Austin Texas US 78746 . 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 Affinegy.