China Mobile IOT Company Limited

MA-L

MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.

Prefix48:21:6C:00:00:00 /24

Vendor addressBuilding D3,No.8 Yangliu North Road,Yubei District CHONGQING CHONGQING CN 401121

RegisteredApr 27, 2019

Block range48:21:6C:00:00:00– 48:21:6C: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 →

Example addresses in this block

48:21:6C:00:00:00 48:21:6C:7F:FF:FF 48:21:6C:FF:FF:FF

Where this block sits

China Mobile IOT Company Limited holds 24 registered blocks in the IEEE registry, ranking #145 of 33,427 organizations by block count.

Other blocks registered to China Mobile IOT Company Limited

04:7E:23:00:00:00 /24 MA-L 1C:25:E1:00:00:00 /24 MA-L 2C:33:41:00:00:00 /24 MA-L 44:E6:B0:00:00:00 /24 MA-L 50:55:8D:00:00:00 /24 MA-L 58:91:53:00:00:00 /24 MA-L 64:58:AD:00:00:00 /24 MA-L 64:F8:8A:00:00:00 /24 MA-L 68:8B:0F:00:00:00 /24 MA-L 80:22:78:00:00:00 /24 MA-L 84:27:B6:00:00:00 /24 MA-L A0:95:0C:00:00:00 /24 MA-L