MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
Espressif Inc.
MAC address prefix B4:A6:4A is registered to Espressif Inc., located at Vistra Corporate Services CentreWickhams Cay IIRoad Town Tortola VG1110VG.
This registration is classified as MA-L (Mac Address Block Large) containing approximately 16 million MAC addresses
The prefix was registered on 22 June 2026, and no subsequent updates have been recorded.
OUI: B4:A6:4A
Vendor name: Espressif Inc.
Address:
Assignment Type MA-L Vistra Corporate Services Centre
Wickhams Cay II
Road Town Tortola VG1110
VG.
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Initial registration: 22 June 2026
