Beijing Maystar Information Technology Co., Ltd.

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.

PrefixD4:7C:44:80:00:00 /28

Vendor addressBuilding B 5/F,Shangdi Keji Zonghe Building,No.22 Shangdi Information Road, Haidian District Beijing CN 100084

Country🇨🇳 China

RegisteredMar 25, 2018

Block rangeD4:7C:44:80:00:00– D4:7C:44:8F: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

D4:7C:44:80:00:00 D4:7C:44:87:FF:FF D4:7C:44:8F:FF:FF

Where this block sits

Previous D4:7C:44:70:00:00 /28 Pongee Industries Co., Ltd. Next D4:7C:44:90:00:00 /28 Suzhou Wan Dian Zhang Network Technology Co., Ltd

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

Beijing Maystar Information Technology Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #6,637 of 33,427 organizations by block count.