macadress

Sinotech Engineering Consultants, Inc. Geotechnical Enginee

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1D:AD:00:00:00 /24
Vendor addressBasement No.7 Lane 26, Yat-Sen Rd. Taipei TW 110
Country🇹🇼  Taiwan
RegisteredAug 18, 2007
Block range00:1D:AD:00:00:00– 00:1D:AD: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

00:1D:AD:00:00:00 00:1D:AD:7F:FF:FF 00:1D:AD:FF:FF:FF

Where this block sits

Previous 00:1D:AC:00:00:00 /24 Gigamon Systems LLC Next 00:1D:AE:00:00:00 /24 CHANG TSENG TECHNOLOGY CO., LTD

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

Sinotech Engineering Consultants, Inc. Geotechnical Enginee holds 1 registered blocks in the IEEE registry, ranking #27,520 of 33,427 organizations by block count.