MAC Address Lookup

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


IEEE 1904.1 Working Group

MAC prefix: C4:E0:32

Vendor name: IEEE 1904.1 Working Group

MAC range: C4:E0:32:00:00:00 - C4:E0:32:FF:FF:FF

Block Size: 16777215 (16.77 M)


1351 Redwood Way

Petaluma CA 94954

Type MA-L

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

Initial registration: 09 January 2013

Last updated: 17 November 2015

Country US map