MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:E0:3A:00:00:00 /24
Vendor address35 INDUSTRIAL WAY - BLDG. #36 ROCHESTER NH US 03867
Country🇺🇸 United States
RegisteredApr 22, 1998
Block range00:E0:3A:00:00:00– 00:E0:3A: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 – Sep 8, 2000 ARIEL CORPORATION name changedaddress changed
- Sep 8, 2000 – present Cabletron Systems, Inc.
Example addresses in this block
Where this block sits
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Cabletron Systems, Inc. holds 5 registered blocks in the IEEE registry, ranking #559 of 33,427 organizations by block count.
Other blocks registered to Cabletron Systems, Inc.