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A4:97:91 Extreme Networks, Inc.

Every MAC address from A4:97:91:00:00:00 to A4:97:91:FF:FF:FF belongs to a block the IEEE assigned to Extreme Networks, Inc.. Network cards, phones and other devices it makes carry addresses from here.

Assignment

Who A4:97:91 belongs to

Written A4:97:91, A4-97-91 or A49791, depending on the system. Look up a full address.

Prefix

A4:97:91

Organization

Extreme Networks, Inc.

Registry

MA-L (a 24-bit OUI)

Addresses

16,777,216

First address

A4:97:91:00:00:00

Last address

A4:97:91:FF:FF:FF

Address type

Globally unique, unicast

Registered address

2121 RDU Center Drive Morrisville NC US 27560

Same organization

Other blocks assigned to Extreme Networks, Inc.

99 more blocks registered under the same name.