Mike's PBX Cookbook

Nortel IP Phone - MAC Ranges

A 'Media Access Control' (MAC) address is 6 octets (48 bits) long, and comprises two parts:

eg: 00:11:22:33:44:55

To determine the hardware MAC address of a networked device, see Finding a MAC address.

MAC / OUI lookup:

Enter a MAC address (or just the first 3 octets), and click submit to find the hardware vendor.

MAC/OUI:

000000: Officially Xerox

OUI's used for Nortel IP Phones: