Area Code +30-21-(30170000...30179999) 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 : 30170000 Subscriber Number To : 30179999 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 : HELLAS ON LINE 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-(30160000...30169999) next › : +30-21-(30180000...30189999) Dialling Instructions For trunk calls: - 21 30170000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 30 21 30170000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 30170000 ~ 30179999 (Count: 10,000) Example: +30-21-30170000 / 0030-21-30170000 (021-30170000 / 0-21-30170000) +30-21-30170001 / 0030-21-30170001 (021-30170001 / 0-21-30170001) +30-21-30170002 / 0030-21-30170002 (021-30170002 / 0-21-30170002) +30-21-30170003 / 0030-21-30170003 (021-30170003 / 0-21-30170003) +30-21-30170004 / 0030-21-30170004 (021-30170004 / 0-21-30170004) ...+30-21-xxxxxxxx / 0030-21-xxxxxxxx (021-xxxxxxxx / 0-21-xxxxxxxx) ...+30-21-30179995 / 0030-21-30179995 (021-30179995 / 0-21-30179995) +30-21-30179996 / 0030-21-30179996 (021-30179996 / 0-21-30179996) +30-21-30179997 / 0030-21-30179997 (021-30179997 / 0-21-30179997) +30-21-30179998 / 0030-21-30179998 (021-30179998 / 0-21-30179998) +30-21-30179999 / 0030-21-30179999 (021-30179999 / 0-21-30179999)