Vorwahlbereich 02
Cybercity K÷ln (0221)
Future-1 BBS (0221)
Rollibox (0221)
Colonia Entry 2 (0221)
Tinnef BBS (0221)
Highlander (0221)
Box 2000 (0221)
Opel (0221)
Stadtnet K÷ln (0221)
CEUS (0221)