MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1A:8C:00:00:00 /24
Vendor addressThe Pentagon Abingdon Oxfordshire GB OX14 3YP
Country🇬🇧 United Kingdom
RegisteredDec 5, 2006
Block range00:1A:8C:00:00:00– 00:1A:8C: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
- Dec 5, 2006 – Jul 22, 2014 Astaro AG name changedaddress changedcountry changed
- Jul 22, 2014 – present Sophos Ltd
Example addresses in this block
Where this block sits
Previous
00:1A:8B:00:00:00 /24
CHUNIL ELECTRIC IND., CO.
Next
00:1A:8D:00:00:00 /24
AVECS Bergen GmbH
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Sophos Ltd holds 4 registered blocks in the IEEE registry, ranking #853 of 33,421 organizations by block count.
Other blocks registered to Sophos Ltd