macadress

HUAWEI TECHNOLOGIES CO.,LTD

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:66:4B:00:00:00 /24
Vendor addressNo.2 Xin Cheng Road, Room R6,Songshan Lake Technology Park Dongguan CN 523808
Country🇨🇳  China
RegisteredJan 13, 2013
Block range00:66:4B:00:00:00– 00:66:4B: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. Jan 13, 2013 – Sep 1, 2015 Huawei Technologies Co., Ltd name changed
  2. Sep 1, 2015 – present HUAWEI TECHNOLOGIES CO.,LTD

Example addresses in this block

00:66:4B:00:00:00 00:66:4B:7F:FF:FF 00:66:4B:FF:FF:FF

Where this block sits

HUAWEI TECHNOLOGIES CO.,LTD holds 1,418 registered blocks in the IEEE registry, ranking #2 of 33,427 organizations by block count.

Other blocks registered to HUAWEI TECHNOLOGIES CO.,LTD

00:18:82:00:00:00 /24 MA-L 00:1E:10:00:00:00 /24 MA-L 00:25:68:00:00:00 /24 MA-L 00:25:9E:00:00:00 /24 MA-L 00:2E:C7:00:00:00 /24 MA-L 00:34:FE:00:00:00 /24 MA-L 00:46:4B:00:00:00 /24 MA-L 00:4F:1A:00:00:00 /24 MA-L 00:5A:13:00:00:00 /24 MA-L 00:61:51:00:00:00 /24 MA-L 00:6B:6F:00:00:00 /24 MA-L 00:99:1D:00:00:00 /24 MA-L