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MAC prefix 00:25:57

Assigned by the IEEE to BlackBerry RTS.

Prefix
00:25:57   00-25-57   0025.57
Block type
MA-L (16,777,216 addresses)
Address range
00:25:57:00:00:00 – 00:25:57:FF:FF:FF
Organization
BlackBerry RTS
Registered address
440 Phillip Street, Waterloo Ontario N2L 5W9, CA
Country
Canada (CA)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 00:25:57:00:00:00

BlackBerry RTS holds 13 blocks in total: see all. Source: IEEE Registration Authority public listing.