macadress

SHENZHEN GONGJIN ELECTRONICS CO.,LT

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1F:A4:00:00:00 /24
Vendor address4F,Baiying Building, No.1019,Nanhai RD,Shekou, ShenZhen GuangDong CN 518067
Country🇨🇳  China
RegisteredFeb 9, 2008
Block range00:1F:A4:00:00:00– 00:1F:A4: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. Feb 9, 2008 – Jan 4, 2017 ShenZhen Gongjin Electronics Co.,Ltd name changedaddress changedcountry changed
  2. Jan 4, 2017 – present SHENZHEN GONGJIN ELECTRONICS CO.,LT

Example addresses in this block

00:1F:A4:00:00:00 00:1F:A4:7F:FF:FF 00:1F:A4:FF:FF:FF

Where this block sits

Previous 00:1F:A3:00:00:00 /24 T&W Electronics(Shenzhen)Co.,Ltd. Next 00:1F:A5:00:00:00 /24 Blue-White Industries

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

SHENZHEN GONGJIN ELECTRONICS CO.,LT holds 24 registered blocks in the IEEE registry, ranking #148 of 33,421 organizations by block count.

Other blocks registered to SHENZHEN GONGJIN ELECTRONICS CO.,LT

00:07:26:00:00:00 /24 MA-L 18:C5:01:00:00:00 /24 MA-L 1C:A5:32:00:00:00 /24 MA-L 2C:AB:25:00:00:00 /24 MA-L 30:DF:8D:00:00:00 /24 MA-L 38:E5:95:00:00:00 /24 MA-L 50:DB:3F:00:00:00 /24 MA-L 68:D4:82:00:00:00 /24 MA-L 80:3E:48:00:00:00 /24 MA-L 80:54:6A:00:00:00 /24 MA-L 84:C9:C6:00:00:00 /24 MA-L 94:FB:B2:00:00:00 /24 MA-L