macadress

Union Source Technology(HK)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.
PrefixF4:70:0C:30:00:00 /28
Vendor addressFLAT/RM 1405B 14/F THE BELGIAN BANK BUILDING NOS.721-725 NATHAN ROAD MONGKOK Hong Kong HK 999077
Country🇭🇰  Hong Kong
RegisteredSep 4, 2021
Block rangeF4:70:0C:30:00:00– F4:70:0C:3F: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

F4:70:0C:30:00:00 F4:70:0C:37:FF:FF F4:70:0C:3F:FF:FF

Where this block sits

Previous F4:70:0C:20:00:00 /28 Beijing ASU Tech Co., Ltd. Next F4:70:0C:40:00:00 /28 Shenzhen Anycon Electronics Technology Co.,Ltd

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

Union Source Technology(HK)LTD holds 1 registered blocks in the IEEE registry, ranking #30,958 of 33,427 organizations by block count.