macadress

SHENZHEN BUL-TECH CO.,LTD.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1D:2A:00:00:00 /24
Vendor address4/F, COFCO Bdlg , 3rd District,Baoan District, Shenzhen City, shengzhen guangdong CN 518101
Country🇨🇳  China
RegisteredAug 18, 2007
Block range00:1D:2A:00:00:00– 00:1D:2A: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. Aug 18, 2007 – Feb 14, 2013 Tideway Electronic LTD name changedaddress changed
  2. Feb 14, 2013 – present SHENZHEN BUL-TECH CO.,LTD.

Example addresses in this block

00:1D:2A:00:00:00 00:1D:2A:7F:FF:FF 00:1D:2A:FF:FF:FF

Where this block sits

Previous 00:1D:29:00:00:00 /24 Doro AB Next 00:1D:2B:00:00:00 /24 Wuhan Pont Technology CO. , LTD

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

SHENZHEN BUL-TECH CO.,LTD. holds 2 registered blocks in the IEEE registry, ranking #2,976 of 33,427 organizations by block count.

Other blocks registered to SHENZHEN BUL-TECH CO.,LTD.

20:C8:B3:00:00:00 /24 MA-L