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MAC prefix 70:DD:A1

Assigned by the IEEE to Tellabs.

Prefix
70:DD:A1   70-DD-A1   70DD.A1
Block type
MA-L (16,777,216 addresses)
Address range
70:DD:A1:00:00:00 – 70:DD:A1:FF:FF:FF
Organization
Tellabs
Registered address
One Tellabs Center, Naperville Illinois 60563, US
Country
United States (US)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 70:DD:A1:00:00:00

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