MAC Address Lookup

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


Open Network Co., Ltd.

MAC prefix: 00:02:91

Vendor name: Open Network Co., Ltd.

MAC range: 00:02:91:00:00:00 - 00:02:91:FF:FF:FF

Block Size: 16777215 (16.77 M)


Seishin Bldg.
2-5-10 Shinjuku
JAPAN 160-0022

Type MA-L

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

Initial registration: 09 November 2000

Last updated: 17 November 2015

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