MAC Address Lookup

Find the vendor name of a device by entering an OUI or a MAC address


IEEE Registration Authority

MAC prefix: A4:58:0F

Vendor name: IEEE Registration Authority

MAC range: A4:58:0F:00:00:00 - A4:58:0F:FF:FF:FF

Block Size: 16777215 (16.77 M)


445 Hoes Lane
Piscataway NJ 08554

Type MA-L

Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)

Initial registration: 03 September 2016

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