MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1C:A1:00:00:00 /24
Vendor address145 Broadway Cambridge MA US 02142
Country🇺🇸 United States
RegisteredMay 16, 2007
Block range00:1C:A1:00:00:00– 00:1C:A1: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
- May 16, 2007 – Jul 19, 2008 Private name changedaddress changedcountry changed
- Jul 19, 2008 – Feb 2, 2024 AKAMAI TECHNOLOGIES, INC. name changedaddress changed
- Feb 2, 2024 – present Akamai Technologies Inc.
Example addresses in this block
Where this block sits
Previous
00:1C:A0:00:00:00 /24
Production Resource Group, LLC
Next
00:1C:A2:00:00:00 /24
ADB Broadband Italia
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Akamai Technologies Inc. holds 2 registered blocks in the IEEE registry, ranking #1,473 of 33,421 organizations by block count.
Other blocks registered to Akamai Technologies Inc.