macadress

Beijing Techao Weijia Technology Limited

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.
PrefixCC:4F:5C:E0:00:00 /28
Vendor addressRoom 202, Floor 2, Building No. 3, No. 9 Xiaoying Road, Chaoyang District Beijing CN 100101
Country🇨🇳  China
RegisteredAug 15, 2020
Block rangeCC:4F:5C:E0:00:00– CC:4F:5C:EF: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 →

Ownership timeline

  1. Aug 15, 2020 – Feb 20, 2022 Buttons (Beijing) Technology Limited name changed
  2. Feb 20, 2022 – present Beijing Techao Weijia Technology Limited

Example addresses in this block

CC:4F:5C:E0:00:00 CC:4F:5C:E7:FF:FF CC:4F:5C:EF:FF:FF

Where this block sits

Previous CC:4F:5C:D0:00:00 /28 Beijing Neutron Technology CO.,LTD.

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

Beijing Techao Weijia Technology Limited holds 1 registered blocks in the IEEE registry, ranking #6,725 of 33,427 organizations by block count.