VANGUARD SECURITY ENGINEERING CORP.

MA-L

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

Prefix00:16:E4:00:00:00 /24

Vendor address3, LANE 32, KSO CHING RD. YANGMEI TAOYUAN US 326

RegisteredDec 23, 2005

Block range00:16:E4:00:00:00– 00:16:E4: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

00:16:E4:00:00:00 00:16:E4:7F:FF:FF 00:16:E4:FF:FF:FF

Where this block sits

Previous 00:16:E3:00:00:00 /24 ASKEY COMPUTER CORP Next 00:16:E5:00:00:00 /24 FORDLEY DEVELOPMENT LIMITED

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

VANGUARD SECURITY ENGINEERING CORP. holds 1 registered blocks in the IEEE registry, ranking #31,216 of 33,421 organizations by block count.