MAC Address Lookup

Extreme Networks, Inc. B4:A3:BD

B4:A3:BD is a 24-bit MA-L MAC address block registered to Extreme Networks, Inc. in US.

Vendor

Extreme Networks, Inc.

MA-L · 24-bit
B4:A3:BD

Unicast · Universally administered (U/L bit clear)

Matched prefix
B4:A3:BD
Match
MA-L assignment
Address range
B4:A3:BD:00:00:00 – B4:A3:BD:FF:FF:FF
Addresses in block
16,777,216
Country
US
Organization address
2121 RDU Center Drive Morrisville NC US 27560
First registered
Nov 23, 2023

Formats

  • Plain hex B4A3BD
  • Colon-separated B4:A3:BD
  • Hyphen-separated B4-A3-BD
  • Cisco dot notation B4A3.BD

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 Headquarters Nov 23, 2023
  2. Extreme Networks, Inc. Jun 26, 2026