SiConnect

MA-L

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

Prefix00:03:9A:00:00:00 /24

Vendor addressDelta 100 Swindon GB SN5 7XP

RegisteredNov 9, 2000

Block range00:03:9A:00:00:00– 00:03:9A: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 →

Ownership timeline

Nov 9, 2000 – Jan 26, 2007 nSine, Ltd. name changedaddress changed
Jan 26, 2007 – present SiConnect

Example addresses in this block

00:03:9A:00:00:00 00:03:9A:7F:FF:FF 00:03:9A:FF:FF:FF

Where this block sits

Previous 00:03:99:00:00:00 /24 Dongju Informations & Communications Co., Ltd. Next 00:03:9B:00:00:00 /24 NetChip Technology, Inc.

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

SiConnect holds 1 registered blocks in the IEEE registry, ranking #27,275 of 33,427 organizations by block count.