HSING TECH. ENTERPRISE CO.,LTD (00:30:21:00:00:00 /24)

HSING TECH. ENTERPRISE CO.,LTD MA-L

MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.

Prefix00:30:21:00:00:00 /24

Vendor address2F, NO. 22, ALLLEY 38, LANE 91 TAIPEI TW

Block range00:30:21:00:00:00– 00:30:21: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

00:30:21:00:00:00 00:30:21:7F:FF:FF 00:30:21:FF:FF:FF