Area Code +30-21-(03710000...03719999) 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 : 03710000 Subscriber Number To : 03719999 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-(03700000...03709999) next › : +30-21-(03720000...03729999) Dialling Instructions For trunk calls: - 21 03710000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 30 21 03710000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 03710000 ~ 03719999 (Count: 10,000) Example: +30-21-03710000 / 0030-21-03710000 (021-03710000 / 0-21-03710000) +30-21-03710001 / 0030-21-03710001 (021-03710001 / 0-21-03710001) +30-21-03710002 / 0030-21-03710002 (021-03710002 / 0-21-03710002) +30-21-03710003 / 0030-21-03710003 (021-03710003 / 0-21-03710003) +30-21-03710004 / 0030-21-03710004 (021-03710004 / 0-21-03710004) ...+30-21-xxxxxxxx / 0030-21-xxxxxxxx (021-xxxxxxxx / 0-21-xxxxxxxx) ...+30-21-03719995 / 0030-21-03719995 (021-03719995 / 0-21-03719995) +30-21-03719996 / 0030-21-03719996 (021-03719996 / 0-21-03719996) +30-21-03719997 / 0030-21-03719997 (021-03719997 / 0-21-03719997) +30-21-03719998 / 0030-21-03719998 (021-03719998 / 0-21-03719998) +30-21-03719999 / 0030-21-03719999 (021-03719999 / 0-21-03719999)