macadress

Intel – GE Care Innovations LLC

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1D:40:00:00:00 /24
Vendor address3721 Douglas Blvd Roseville CA US 95661
Country🇺🇸  United States
RegisteredAug 18, 2007
Block range00:1D:40:00:00:00– 00:1D:40: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. Aug 18, 2007 – Jan 29, 2014 Living Independently Group, Inc. name changedaddress changed
  2. Jan 29, 2014 – Aug 27, 2015 Intel – GE Care Innovations LLC name changedaddress changed
  3. Aug 27, 2015 – present Intel – GE Care Innovations LLC

Example addresses in this block

00:1D:40:00:00:00 00:1D:40:7F:FF:FF 00:1D:40:FF:FF:FF

Where this block sits

Previous 00:1D:3F:00:00:00 /24 Mitron Pty Ltd Next 00:1D:41:00:00:00 /24 Hardy Instruments

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

Intel – GE Care Innovations LLC holds 1 registered blocks in the IEEE registry, ranking #16,310 of 33,427 organizations by block count.