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88:5B:DD Extreme Networks, Inc.

Every MAC address from 88:5B:DD:00:00:00 to 88:5B:DD: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 88:5B:DD belongs to

Written 88:5B:DD, 88-5B-DD or 885BDD, depending on the system. Look up a full address.

Prefix

88:5B:DD

Organization

Extreme Networks, Inc.

Registry

MA-L (a 24-bit OUI)

Addresses

16,777,216

First address

88:5B:DD:00:00:00

Last address

88:5B:DD: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.