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MAC prefix 00:10:4B

Assigned by the IEEE to 3COM.

Prefix
00:10:4B   00-10-4B   0010.4B
Block type
MA-L (16,777,216 addresses)
Address range
00:10:4B:00:00:00 – 00:10:4B:FF:FF:FF
Organization
3COM
Registered address
5400 BAYFRONT PLAZA, SANTA CLARA CA 95052, US
Country
United States (US)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 00:10:4B:00:00:00

3COM holds 31 blocks in total: see all. Source: IEEE Registration Authority public listing.