Area Code +30-21-(03700000...03709999) 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 : 03700000 Subscriber Number To : 03709999 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-(03690000...03699999) next › : +30-21-(03710000...03719999) Dialling Instructions For trunk calls: - 21 03700000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 30 21 03700000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 03700000 ~ 03709999 (Count: 10,000) Example: +30-21-03700000 / 0030-21-03700000 (021-03700000 / 0-21-03700000) +30-21-03700001 / 0030-21-03700001 (021-03700001 / 0-21-03700001) +30-21-03700002 / 0030-21-03700002 (021-03700002 / 0-21-03700002) +30-21-03700003 / 0030-21-03700003 (021-03700003 / 0-21-03700003) +30-21-03700004 / 0030-21-03700004 (021-03700004 / 0-21-03700004) ...+30-21-xxxxxxxx / 0030-21-xxxxxxxx (021-xxxxxxxx / 0-21-xxxxxxxx) ...+30-21-03709995 / 0030-21-03709995 (021-03709995 / 0-21-03709995) +30-21-03709996 / 0030-21-03709996 (021-03709996 / 0-21-03709996) +30-21-03709997 / 0030-21-03709997 (021-03709997 / 0-21-03709997) +30-21-03709998 / 0030-21-03709998 (021-03709998 / 0-21-03709998) +30-21-03709999 / 0030-21-03709999 (021-03709999 / 0-21-03709999)