macadress

Ava Security Limited

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixD0:3D:52:00:00:00 /24
Vendor addressThe Charter Building, Charter Place Uxbridge GB UB8 1JG
Country🇬🇧  United Kingdom
RegisteredJul 31, 2019
Block rangeD0:3D:52:00:00:00– D0:3D:52: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

  1. Jul 31, 2019 – Jul 16, 2020 Vaion Limited name changed
  2. Jul 16, 2020 – present Ava Security Limited

Example addresses in this block

D0:3D:52:00:00:00 D0:3D:52:7F:FF:FF D0:3D:52:FF:FF:FF

Where this block sits

Ava Security Limited holds 1 registered blocks in the IEEE registry, ranking #5,996 of 33,427 organizations by block count.