Area Code +30-21-(04230000...04239999) 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 : 04230000 Subscriber Number To : 04239999 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-(04220000...04229999) next › : +30-21-(04250000...04259999) Dialling Instructions For trunk calls: - 21 04230000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 30 21 04230000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 04230000 ~ 04239999 (Count: 10,000) Example: +30-21-04230000 / 0030-21-04230000 (021-04230000 / 0-21-04230000) +30-21-04230001 / 0030-21-04230001 (021-04230001 / 0-21-04230001) +30-21-04230002 / 0030-21-04230002 (021-04230002 / 0-21-04230002) +30-21-04230003 / 0030-21-04230003 (021-04230003 / 0-21-04230003) +30-21-04230004 / 0030-21-04230004 (021-04230004 / 0-21-04230004) ...+30-21-xxxxxxxx / 0030-21-xxxxxxxx (021-xxxxxxxx / 0-21-xxxxxxxx) ...+30-21-04239995 / 0030-21-04239995 (021-04239995 / 0-21-04239995) +30-21-04239996 / 0030-21-04239996 (021-04239996 / 0-21-04239996) +30-21-04239997 / 0030-21-04239997 (021-04239997 / 0-21-04239997) +30-21-04239998 / 0030-21-04239998 (021-04239998 / 0-21-04239998) +30-21-04239999 / 0030-21-04239999 (021-04239999 / 0-21-04239999)