macadress

Wide World Trade 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.
Prefix1C:87:74:90:00:00 /28
Vendor addressOffice Tower, Convention Plaza, 1 Harbour Road, Wanchai Hong Kong HK 4210
Country🇭🇰  Hong Kong
RegisteredOct 17, 2015
Block range1C:87:74:90:00:00– 1C:87:74:9F: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

1C:87:74:90:00:00 1C:87:74:97:FF:FF 1C:87:74:9F:FF:FF

Where this block sits

Previous 1C:87:74:80:00:00 /28 Surtec Industries, Inc Next 1C:87:74:A0:00:00 /28 Nebbiolo Technologies

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

Wide World Trade HK ltd. holds 1 registered blocks in the IEEE registry, ranking #32,188 of 33,427 organizations by block count.