Avaya Inc

MA-L

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

Prefix90:FB:5B:00:00:00 /24

Vendor address360 Mt Kemble Ave Morristown NJ US 07960

RegisteredOct 15, 2010

Block range90:FB:5B:00:00:00– 90:FB:5B: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

Oct 15, 2010 – Sep 1, 2015 Avaya, Inc name changed
Sep 1, 2015 – present Avaya Inc

Example addresses in this block

90:FB:5B:00:00:00 90:FB:5B:7F:FF:FF 90:FB:5B:FF:FF:FF

Where this block sits

Next 90:FB:5D:00:00:00 /24 Beijing Xiaomi Mobile Software Co., Ltd

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

Avaya Inc holds 52 registered blocks in the IEEE registry, ranking #68 of 33,427 organizations by block count.

Other blocks registered to Avaya Inc

00:04:0D:00:00:00 /24 MA-L 00:1B:4F:00:00:00 /24 MA-L 00:54:9F:00:00:00 /24 MA-L 04:8A:15:00:00:00 /24 MA-L 10:CD:AE:00:00:00 /24 MA-L 14:61:2F:00:00:00 /24 MA-L 24:B2:09:00:00:00 /24 MA-L 24:D9:21:00:00:00 /24 MA-L 2C:F4:C5:00:00:00 /24 MA-L 34:75:C7:00:00:00 /24 MA-L 38:BB:3C:00:00:00 /24 MA-L 3C:3A:73:00:00:00 /24 MA-L