Area Code +1-620-(4350000...4359999) located in Argonia, Kansas (KS), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 620 Subscriber Number From : 4350000 Subscriber Number To : 4359999 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 : HAVILAND TEL CO INC Click here to buy United States Area Code Database Other Information Language Code : en (English) Country Number : 840 (United States) Country Code : US (United States) Region Code : KS Region Name : Kansas City : Argonia Timezone : America/Chicago Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 37.2600 Longitude : -97.7700 ‹ previous : +1-620-(4340000...4349999) next › : +1-620-(4366000...4366999) Dialling Instructions For trunk calls: 0 620 4350000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 620 4350000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4350000 ~ 4359999 (Count: 10,000) Example: +1-620-4350000 / 0111-620-4350000 (1620-4350000 / 1-620-4350000) +1-620-4350001 / 0111-620-4350001 (1620-4350001 / 1-620-4350001) +1-620-4350002 / 0111-620-4350002 (1620-4350002 / 1-620-4350002) +1-620-4350003 / 0111-620-4350003 (1620-4350003 / 1-620-4350003) +1-620-4350004 / 0111-620-4350004 (1620-4350004 / 1-620-4350004) ...+1-620-xxxxxxx / 0111-620-xxxxxxx (1620-xxxxxxx / 1-620-xxxxxxx) ...+1-620-4359995 / 0111-620-4359995 (1620-4359995 / 1-620-4359995) +1-620-4359996 / 0111-620-4359996 (1620-4359996 / 1-620-4359996) +1-620-4359997 / 0111-620-4359997 (1620-4359997 / 1-620-4359997) +1-620-4359998 / 0111-620-4359998 (1620-4359998 / 1-620-4359998) +1-620-4359999 / 0111-620-4359999 (1620-4359999 / 1-620-4359999)