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MAC prefix 00:00:5D

Assigned by the IEEE to CS TELECOM.

Prefix
00:00:5D   00-00-5D   0000.5D
Block type
MA-L (16,777,216 addresses)
Address range
00:00:5D:00:00:00 – 00:00:5D:FF:FF:FF
Organization
CS TELECOM
Registered address
4-16 AVENUE DU GENERAL LECLERC
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 00:00:5D:00:00:00

CS TELECOM holds 1 block in total: see all. Source: IEEE Registration Authority public listing.