macadress

Sony Corporation

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:23:F1:00:00:00 /24
Vendor address4-12-3 Higashi – Shinagawa Shinagawa-ku Tokyo JP 140-0002
Country🇯🇵  Japan
RegisteredOct 12, 2008
Block range00:23:F1:00:00:00– 00:23:F1: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. Oct 12, 2008 – Oct 30, 2015 Sony Ericsson Mobile Communications name changed
  2. Oct 30, 2015 – Mar 13, 2018 Sony Mobile Communications AB name changed
  3. Mar 13, 2018 – Apr 15, 2021 Sony Mobile Communications Inc name changed
  4. Apr 15, 2021 – present Sony Corporation

Example addresses in this block

00:23:F1:00:00:00 00:23:F1:7F:FF:FF 00:23:F1:FF:FF:FF

Where this block sits

Previous 00:23:F0:00:00:00 /24 Shanghai Jinghan Weighing Apparatus Co. Ltd. Next 00:23:F2:00:00:00 /24 TVLogic

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

Sony Corporation holds 86 registered blocks in the IEEE registry, ranking #41 of 33,427 organizations by block count.

Other blocks registered to Sony Corporation

00:01:4A:00:00:00 /24 MA-L 00:0A:D9:00:00:00 /24 MA-L 00:0E:07:00:00:00 /24 MA-L 00:0F:DE:00:00:00 /24 MA-L 00:12:EE:00:00:00 /24 MA-L 00:13:A9:00:00:00 /24 MA-L 00:16:20:00:00:00 /24 MA-L 00:16:B8:00:00:00 /24 MA-L 00:18:13:00:00:00 /24 MA-L 00:19:63:00:00:00 /24 MA-L 00:1A:75:00:00:00 /24 MA-L 00:1A:80:00:00:00 /24 MA-L