MAC Address Lookup

Extreme Networks, Inc. B4:2D:56

B4:2D:56 is a 24-bit MA-L MAC address block registered to Extreme Networks, Inc. in US.

Vendor

Extreme Networks, Inc.

MA-L · 24-bit
B4:2D:56

Unicast · Universally administered (U/L bit clear)

Matched prefix
B4:2D:56
Match
MA-L assignment
Address range
B4:2D:56:00:00:00 – B4:2D:56:FF:FF:FF
Addresses in block
16,777,216
Country
US
Organization address
2121 RDU Center Drive Morrisville NC US 27560
First registered
Sep 16, 2017

Formats

  • Plain hex B42D56
  • Colon-separated B4:2D:56
  • Hyphen-separated B4-2D-56
  • Cisco dot notation B42D.56

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. Sep 16, 2017
  2. Extreme Networks Headquarters Jul 15, 2023
  3. Extreme Networks, Inc. Jun 26, 2026