MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixB4:A2:EB:C0:00:00 /28
Vendor addressNo. 1188, Kungang Road, Songjiang District Shanghai Shanghai CN 200000
Country🇨🇳 China
RegisteredApr 13, 2019
Block rangeB4:A2:EB:C0:00:00– B4:A2:EB:CF: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
- Apr 13, 2019 – May 21, 2019 ASSA ABLOY Korea Co., Ltd. iRevo name changedaddress changedcountry changed
- May 21, 2019 – present Shanghai Shenou Communication Equipment Co., Ltd.
Example addresses in this block
Where this block sits
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shanghai Shenou Communication Equipment Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #26,035 of 33,427 organizations by block count.