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MAC prefix 1C:57:3E

Assigned by the IEEE to Altice Labs S.A..

Prefix
1C:57:3E   1C-57-3E   1C57.3E
Block type
MA-L (16,777,216 addresses)
Address range
1C:57:3E:00:00:00 – 1C:57:3E:FF:FF:FF
Organization
Altice Labs S.A.
Registered address
NIF 504705610, Rua Eng. José Ferreira Pinto Basto, Aveiro 3810-106, PT
Country
Portugal (PT)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 1C:57:3E:00:00:00

Altice Labs S.A. holds 4 blocks in total: see all. Source: IEEE Registration Authority public listing.