MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1E:83:00:00:00 /24
Vendor addressIEEE 802.1 Chair, c/o RAC Administrator, IEEE Piscataway NJ US 08854
Country🇺🇸 United States
RegisteredOct 22, 2007
Block range00:1E:83:00:00:00– 00:1E:83: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 22, 2026 – Sep 21, 2026 LAN/MAN Standards Association (LMSC) name changedaddress changed
- Sep 21, 2026 – present IEEE 802.1 Working Group
Example addresses in this block
Where this block sits
Previous
00:1E:82:00:00:00 /24
SanDisk Corporation
Next
00:1E:84:00:00:00 /24
Pika Technologies Inc.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
IEEE 802.1 Working Group holds 6 registered blocks in the IEEE registry, ranking #503 of 33,427 organizations by block count.
Other blocks registered to IEEE 802.1 Working Group