HTTPfy

MAC prefix 68:78:4C

Assigned by the IEEE to Nortel Networks.

Prefix
68:78:4C   68-78-4C   6878.4C
Block type
MA-L (16,777,216 addresses)
Address range
68:78:4C:00:00:00 – 68:78:4C:FF:FF:FF
Organization
Nortel Networks
Registered address
CARRETERA BASE AEREA # 5850, Zapopan Jalisco 44130, MX
Country
Mexico (MX)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 68:78:4C:00:00:00

Nortel Networks holds 68 blocks in total: see all. Source: IEEE Registration Authority public listing.