macadress

Extreme Networks, Inc.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix9C:5D:12:00:00:00 /24
Vendor address2121 RDU Center Drive Morrisville NC US 27560
Country🇺🇸  United States
RegisteredJun 2, 2012
Block range9C:5D:12:00:00:00– 9C:5D:12:FF:FF:FF
Address capacity16,777,216
AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority
TransmissionUnicast: addressed to a single device
SourceIEEE Registration Authority

Address capacity is the size of this registered block, not a count of devices actually manufactured or online. Registration identifies the organization holding the block, not a specific device model or unit.

Curious how a prefix like this turns into a full address? See how MAC addresses are structured →

Ownership timeline

  1. Jun 2, 2012 – Oct 10, 2015 Aerohive Networks Inc name changed
  2. Oct 10, 2015 – Feb 1, 2020 Aerohive Networks Inc. name changed
  3. Feb 1, 2020 – Jul 15, 2023 Extreme Networks, Inc. name changedaddress changed
  4. Jul 15, 2023 – Jun 26, 2026 Extreme Networks Headquarters name changed
  5. Jun 26, 2026 – present Extreme Networks, Inc.

Dates show when a change became public in the IEEE registry. How we track ownership history →

Example addresses in this block

9C:5D:12:00:00:00 9C:5D:12:7F:FF:FF 9C:5D:12:FF:FF:FF

Where this block sits

Extreme Networks, Inc. holds 100 registered blocks in the IEEE registry, ranking #34 of 33,498 organizations by block count.

Other blocks registered to Extreme Networks, Inc.

00:01:30:00:00:00 /24 MA-L 00:04:96:00:00:00 /24 MA-L 00:19:77:00:00:00 /24 MA-L 00:89:C9:00:00:00 /24 MA-L 00:B8:1D:00:00:00 /24 MA-L 00:DC:B2:00:00:00 /24 MA-L 00:E0:2B:00:00:00 /24 MA-L 00:E6:0E:00:00:00 /24 MA-L 08:EA:44:00:00:00 /24 MA-L 0C:9B:78:00:00:00 /24 MA-L 0C:ED:71:00:00:00 /24 MA-L 14:BA:A2:00:00:00 /24 MA-L