MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:12:19:00:00:00 /24
Vendor address353 Christian Street, Suite 4 Oxford CT US 06478
Country🇺🇸 United States
RegisteredAug 12, 2004
Block range00:12:19:00:00:00– 00:12:19: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
- Aug 12, 2004 – Apr 20, 2017 Ahead Communication Systems Inc name changedaddress changed
- Apr 20, 2017 – present General Datacomm LLC
Example addresses in this block
Where this block sits
Previous
00:12:18:00:00:00 /24
ARUZE Corporation
Next
00:12:1A:00:00:00 /24
Techno Soft Systemnics Inc.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
General Datacomm LLC holds 2 registered blocks in the IEEE registry, ranking #2,080 of 33,421 organizations by block count.
Other blocks registered to General Datacomm LLC