Area Code +30-21-(03720000...03729999) located in Athens, Attiki (A1), more detail is as below. Place International Dialing Code : 30 International Prefix : 00 National Prefix : 0 National Destination Code : 21 Subscriber Number From : 03720000 Subscriber Number To : 03729999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : OTE S.A Click here to buy Greece Area Code Database Other Information Language Code : el (Greek) Country Number : 300 (Greece) Country Code : GR (Greece) Region Code : A1 Region Name : Attiki City : Athens Timezone : Europe/Athens Coordinated Universal Time : +02:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 37.9800 Longitude : 23.7200 ‹ previous : +30-21-(03710000...03719999) next › : +30-21-(03730000...03739999) Dialling Instructions For trunk calls: - 21 03720000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 30 21 03720000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 03720000 ~ 03729999 (Count: 10,000) Example: +30-21-03720000 / 0030-21-03720000 (021-03720000 / 0-21-03720000) +30-21-03720001 / 0030-21-03720001 (021-03720001 / 0-21-03720001) +30-21-03720002 / 0030-21-03720002 (021-03720002 / 0-21-03720002) +30-21-03720003 / 0030-21-03720003 (021-03720003 / 0-21-03720003) +30-21-03720004 / 0030-21-03720004 (021-03720004 / 0-21-03720004) ...+30-21-xxxxxxxx / 0030-21-xxxxxxxx (021-xxxxxxxx / 0-21-xxxxxxxx) ...+30-21-03729995 / 0030-21-03729995 (021-03729995 / 0-21-03729995) +30-21-03729996 / 0030-21-03729996 (021-03729996 / 0-21-03729996) +30-21-03729997 / 0030-21-03729997 (021-03729997 / 0-21-03729997) +30-21-03729998 / 0030-21-03729998 (021-03729998 / 0-21-03729998) +30-21-03729999 / 0030-21-03729999 (021-03729999 / 0-21-03729999)