MAC Address Lookup

Extreme Networks, Inc. A4:73:AB

A4:73:AB is a 24-bit MA-L MAC address block registered to Extreme Networks, Inc. in US.

Vendor

Extreme Networks, Inc.

MA-L · 24-bit
A4:73:AB

Unicast · Universally administered (U/L bit clear)

Matched prefix
A4:73:AB
Match
MA-L assignment
Address range
A4:73:AB:00:00:00 – A4:73:AB:FF:FF:FF
Addresses in block
16,777,216
Country
US
Organization address
2121 RDU Center Drive Morrisville NC US 27560
First registered
Jul 14, 2023

Formats

  • Plain hex A473AB
  • Colon-separated A4:73:AB
  • Hyphen-separated A4-73-AB
  • Cisco dot notation A473.AB

Prefix lineage

This prefix has changed hands. Dates are when each change was first observed in public registration data (runZero mac-tracker).

  1. Extreme Networks, Inc. Jul 14, 2023
  2. Extreme Networks Headquarters Jul 15, 2023
  3. Extreme Networks, Inc. Jun 26, 2026