Area Code +98-121-(3420000...3429999) located in Amol - وركاده, Mazandaran (21), more detail is as below. Place International Dialing Code : 98 International Prefix : 00 National Prefix : 0 National Destination Code : 121 Subscriber Number From : 3420000 Subscriber Number To : 3429999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Telecommunication Company of Iran Click here to buy Iran Area Code Database Other Information Language Code : fa (Persian) Country Number : 364 (Iran) Country Code : IR (Iran) Region Code : 21 Region Name : Mazandaran City : Amol - وركاده Timezone : Asia/Tehran Coordinated Universal Time : +03:30 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 36.2900 Longitude : 52.5500 ‹ previous : +98-121-(3180000...3189999) next › : +98-121-(3440000...3449999) Dialling Instructions For trunk calls: 0 121 3420000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 98 121 3420000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3420000 ~ 3429999 (Count: 10,000) Example: +98-121-3420000 / 0098-121-3420000 (0121-3420000 / 0-121-3420000) +98-121-3420001 / 0098-121-3420001 (0121-3420001 / 0-121-3420001) +98-121-3420002 / 0098-121-3420002 (0121-3420002 / 0-121-3420002) +98-121-3420003 / 0098-121-3420003 (0121-3420003 / 0-121-3420003) +98-121-3420004 / 0098-121-3420004 (0121-3420004 / 0-121-3420004) ...+98-121-xxxxxxx / 0098-121-xxxxxxx (0121-xxxxxxx / 0-121-xxxxxxx) ...+98-121-3429995 / 0098-121-3429995 (0121-3429995 / 0-121-3429995) +98-121-3429996 / 0098-121-3429996 (0121-3429996 / 0-121-3429996) +98-121-3429997 / 0098-121-3429997 (0121-3429997 / 0-121-3429997) +98-121-3429998 / 0098-121-3429998 (0121-3429998 / 0-121-3429998) +98-121-3429999 / 0098-121-3429999 (0121-3429999 / 0-121-3429999)