MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1E:70:00:00:00 /24
Vendor addressThe Chelton Centre, Fourth Avenue Marlow Buckinghamshire GB SL7 1TF
Country🇬🇧 United Kingdom
RegisteredOct 22, 2007
Block range00:1E:70:00:00:00– 00:1E:70: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
- Oct 22, 2007 – Aug 27, 2015 Cobham Defence Communications Ltd name changedaddress changed
- Aug 27, 2015 – Jun 25, 2022 Cobham Antenna Systems name changedaddress changed
- Jun 25, 2022 – present Chelton Limited
Example addresses in this block
Where this block sits
Previous
00:1E:6F:00:00:00 /24
Magna-Power Electronics, Inc.
Next
00:1E:71:00:00:00 /24
MIrcom Group of Companies
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Chelton Limited holds 1 registered blocks in the IEEE registry, ranking #8,219 of 33,427 organizations by block count.