macadress

Microsemi Corporation

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:A0:87:00:00:00 /24
Vendor address400 March Road Ontario CA K2K 3H4
Country🇨🇦  Canada
RegisteredApr 22, 1998
Block range00:A0:87:00:00:00– 00:A0:87: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

  1. Apr 22, 1998 – Jun 5, 2002 MITEL SEMICONDUCTOR, LTD. name changedaddress changed
  2. Jun 5, 2002 – Jan 17, 2014 Zarlink Semiconductor Ltd. name changedaddress changedcountry changed
  3. Jan 17, 2014 – present Microsemi Corporation

Example addresses in this block

00:A0:87:00:00:00 00:A0:87:7F:FF:FF 00:A0:87:FF:FF:FF

Where this block sits

Previous 00:A0:86:00:00:00 /24 AMBER WAVE SYSTEMS, INC. Next 00:A0:88:00:00:00 /24 ESSENTIAL COMMUNICATIONS

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

Microsemi Corporation holds 1 registered blocks in the IEEE registry, ranking #19,855 of 33,427 organizations by block count.