macadress

Newbest Development Limited

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:0D:42:00:00:00 /24
Vendor address3/F Unit 311-312 Shatin NT HK
Country🇭🇰  Hong Kong
RegisteredJun 1, 2003
Block range00:0D:42:00:00:00– 00:0D:42:FF:FF:FF
Address capacity16,777,216
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

00:0D:42:00:00:00 00:0D:42:7F:FF:FF 00:0D:42:FF:FF:FF

Where this block sits

Previous 00:0D:41:00:00:00 /24 Siemens AG ICM MP UC RD IT KLF1 Next 00:0D:43:00:00:00 /24 DRS Tactical Systems Inc.

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

Newbest Development Limited holds 1 registered blocks in the IEEE registry, ranking #21,165 of 33,427 organizations by block count.