MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:10:BC:00:00:00 /24
Vendor address8 Federal Street Billerica MA US 01821-3570
Country🇺🇸 United States
RegisteredApr 22, 1998
Block range00:10:BC:00:00:00– 00:10:BC: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
- Apr 22, 1998 – Dec 4, 2000 APTIS COMMUNICATIONS, INC. name changedaddress changed
- Dec 4, 2000 – Feb 12, 2004 Nortel Networks name changedaddress changed
- Feb 12, 2004 – present Aastra Telecom
Example addresses in this block
Where this block sits
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00:10:BB:00:00:00 /24
DATA & INFORMATION TECHNOLOGY
Next
00:10:BD:00:00:00 /24
THE TELECOMMUNICATION TECHNOLOGY COMMITTEE (TTC)
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Aastra Telecom holds 1 registered blocks in the IEEE registry, ranking #3,705 of 33,421 organizations by block count.