Altice Labs (1C:57:3E:00:00:00 /24)

Altice Labs MA-L

MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.

Prefix1C:57:3E:00:00:00 /24

Vendor addressNIF 504705610, Rua Eng. José Ferreira Pinto Basto Aveiro PT 3810-106

Block range1C:57:3E:00:00:00– 1C:57:3E: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 →

Example addresses in this block

1C:57:3E:00:00:00 1C:57:3E:7F:FF:FF 1C:57:3E:FF:FF:FF

Other blocks registered to Altice Labs

50:67:E0:00:00:00 /24 MA-L 58:FC:20:00:00:00 /24 MA-L 68:AA:C4:00:00:00 /24 MA-L C8:70:23:00:00:00 /24 MA-L