Area Code +30-21-(02530000...02539999) 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 : 02530000 Subscriber Number To : 02539999 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-(02520000...02529999) next › : +30-21-(02580000...02589999) Dialling Instructions For trunk calls: - 21 02530000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 30 21 02530000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 02530000 ~ 02539999 (Count: 10,000) Example: +30-21-02530000 / 0030-21-02530000 (021-02530000 / 0-21-02530000) +30-21-02530001 / 0030-21-02530001 (021-02530001 / 0-21-02530001) +30-21-02530002 / 0030-21-02530002 (021-02530002 / 0-21-02530002) +30-21-02530003 / 0030-21-02530003 (021-02530003 / 0-21-02530003) +30-21-02530004 / 0030-21-02530004 (021-02530004 / 0-21-02530004) ...+30-21-xxxxxxxx / 0030-21-xxxxxxxx (021-xxxxxxxx / 0-21-xxxxxxxx) ...+30-21-02539995 / 0030-21-02539995 (021-02539995 / 0-21-02539995) +30-21-02539996 / 0030-21-02539996 (021-02539996 / 0-21-02539996) +30-21-02539997 / 0030-21-02539997 (021-02539997 / 0-21-02539997) +30-21-02539998 / 0030-21-02539998 (021-02539998 / 0-21-02539998) +30-21-02539999 / 0030-21-02539999 (021-02539999 / 0-21-02539999)