Chengdu Krosslan Technology Inc.

MA-M

MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.

Prefix38:3A:21:70:00:00 /28

Vendor address4F,Tower B, Rennan Mansion, No.5 Section 3, 2nd Ring Road South Chengdu Sichuan CN 610041

RegisteredJul 3, 2016

Block range38:3A:21:70:00:00– 38:3A:21:7F:FF:FF

Address capacity1,048,576

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

38:3A:21:70:00:00 38:3A:21:77:FF:FF 38:3A:21:7F:FF:FF

Where this block sits

Previous 38:3A:21:60:00:00 /28 Shenzhen Smart-core Technology co., Ltd. Next 38:3A:21:80:00:00 /28 Alicat Scientific

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

Chengdu Krosslan Technology Inc. holds 1 registered blocks in the IEEE registry, ranking #8,260 of 33,427 organizations by block count.