macadress

Adtran Inc

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:01:4F:00:00:00 /24
Vendor address901 Explorer Blvd. Huntsville AL US 35806-2807
Country🇺🇸  United States
RegisteredSep 8, 2000
Block range00:01:4F:00:00:00– 00:01:4F: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. Sep 8, 2000 – Apr 21, 2006 LUMINOUS Networks, Inc. name changedaddress changed
  2. Apr 21, 2006 – present Adtran Inc

Example addresses in this block

00:01:4F:00:00:00 00:01:4F:7F:FF:FF 00:01:4F:FF:FF:FF

Where this block sits

Previous 00:01:4E:00:00:00 /24 WIN Enterprises, Inc. Next 00:01:50:00:00:00 /24 GILAT COMMUNICATIONS, LTD.

The nearest registered blocks of the same size on either side of this one in IEEE's address space.

Adtran Inc holds 15 registered blocks in the IEEE registry, ranking #210 of 33,421 organizations by block count.

Other blocks registered to Adtran Inc

00:19:92:00:00:00 /24 MA-L 00:24:45:00:00:00 /24 MA-L 00:A0:C8:00:00:00 /24 MA-L 20:5F:3D:00:00:00 /24 MA-L 28:D0:CB:00:00:00 /24 MA-L 38:F8:F6:00:00:00 /24 MA-L 54:22:E0:00:00:00 /24 MA-L 58:87:85:00:00:00 /24 MA-L 64:A0:AC:00:00:00 /24 MA-L 84:4D:4C:00:00:00 /24 MA-L AC:13:9C:00:00:00 /24 MA-L AC:51:EE:00:00:00 /24 MA-L