macadress

BUFFALO.INC

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:40:26:00:00:00 /24
Vendor addressAKAMONDORI Bldg., 30-20,Ohsu 3-chome Naka-ku,Nagoya Aichi Pref. JP 460-8315
Country🇯🇵  Japan
RegisteredApr 22, 1998
Block range00:40:26:00:00:00– 00:40:26: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. Apr 22, 1998 – Dec 4, 2009 MELCO, INC. name changedaddress changed
  2. Dec 4, 2009 – Mar 28, 2013 Buffalo, Inc name changedaddress changed
  3. Mar 28, 2013 – Oct 10, 2015 Buffalo Inc. name changedaddress changed
  4. Oct 10, 2015 – present BUFFALO.INC

Example addresses in this block

00:40:26:00:00:00 00:40:26:7F:FF:FF 00:40:26:FF:FF:FF

Where this block sits

Previous 00:40:25:00:00:00 /24 MOLECULAR DYNAMICS Next 00:40:27:00:00:00 /24 SMC MASSACHUSETTS, INC.

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

BUFFALO.INC holds 35 registered blocks in the IEEE registry, ranking #99 of 33,421 organizations by block count.

Other blocks registered to BUFFALO.INC

00:07:40:00:00:00 /24 MA-L 00:0D:0B:00:00:00 /24 MA-L 00:16:01:00:00:00 /24 MA-L 00:1D:73:00:00:00 /24 MA-L 00:24:A5:00:00:00 /24 MA-L 00:2B:F5:00:00:00 /24 MA-L 00:E5:F1:00:00:00 /24 MA-L 10:6F:3F:00:00:00 /24 MA-L 18:C2:BF:00:00:00 /24 MA-L 18:EC:E7:00:00:00 /24 MA-L 34:3D:C4:00:00:00 /24 MA-L 4C:85:8A:00:00:00 /24 MA-L