Beijing Huanyu Zhilian Science &Technology Co., Ltd.

MA-S

MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.

Prefix70:B3:D5:DF:50:00 /36

Vendor address2/F 202-030, Building 2, No. 1, Gaolizhang Road, Haidian District,Beijing Beijing Beijing CN 100095

RegisteredDec 11, 2018

Block range70:B3:D5:DF:50:00– 70:B3:D5:DF:5F:FF

Address capacity4,096

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

70:B3:D5:DF:50:00 70:B3:D5:DF:57:FF 70:B3:D5:DF:5F:FF

Where this block sits

Previous 70:B3:D5:DF:40:00 /36 Heim- & Bürokommunikation Ilmert e.K. Next 70:B3:D5:DF:60:00 /36 Tiab Limited

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

Beijing Huanyu Zhilian Science &Technology Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #6,587 of 33,427 organizations by block count.