macadress

SHENZHEN OFEIXIN 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.
Prefix28:36:13:70:00:00 /28
Vendor address902, Building 4, Guangming Fenghuang Plaza, Dongkeng Community, Fenghuang Street, Guangming District Shenzhen CN 518000
Country🇨🇳  China
RegisteredJun 17, 2021
Block range28:36:13:70:00:00– 28:36:13:7F: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 →

Ownership timeline

  1. Jun 17, 2021 – May 8, 2026 shenzhen technology limited name changed
  2. May 8, 2026 – present SHENZHEN OFEIXIN TECHNOLOGY LIMITED

Example addresses in this block

28:36:13:70:00:00 28:36:13:77:FF:FF 28:36:13:7F:FF:FF

Where this block sits

Previous 28:36:13:60:00:00 /28 ESI Ventures, LLC Next 28:36:13:80:00:00 /28 Fuzhou Lesi Intelligent Technology Co., Ltd

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

SHENZHEN OFEIXIN TECHNOLOGY LIMITED holds 1 registered blocks in the IEEE registry, ranking #26,760 of 33,427 organizations by block count.