macadress

Electro-Voice Dynacord LLC

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:0B:7C:00:00:00 /24
Vendor address130 Perinton Parkway Fairport NY US 14450
Country🇺🇸  United States
RegisteredOct 14, 2002
Block range00:0B:7C:00:00:00– 00:0B:7C: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. Oct 14, 2002 – Feb 10, 2026 Telex Communications name changedaddress changed
  2. Feb 10, 2026 – present Electro-Voice Dynacord LLC

Example addresses in this block

00:0B:7C:00:00:00 00:0B:7C:7F:FF:FF 00:0B:7C:FF:FF:FF

Where this block sits

Previous 00:0B:7B:00:00:00 /24 Test-Um Inc. Next 00:0B:7D:00:00:00 /24 SOLOMON EXTREME INTERNATIONAL LTD.

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

Electro-Voice Dynacord LLC holds 1 registered blocks in the IEEE registry, ranking #11,419 of 33,427 organizations by block count.