Area Code +1-423-(3740000...3749999) located in La Follette, Tennessee (TN), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 423 Subscriber Number From : 3740000 Subscriber Number To : 3749999 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 : ALEC LLC - TN 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 : TN Region Name : Tennessee City : La Follette Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 36.3800 Longitude : -84.1200 ‹ previous : +1-423-(3730000...3739999) next › : +1-423-(3750000...3750999) Dialling Instructions For trunk calls: 0 423 3740000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 423 3740000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3740000 ~ 3749999 (Count: 10,000) Example: +1-423-3740000 / 0111-423-3740000 (1423-3740000 / 1-423-3740000) +1-423-3740001 / 0111-423-3740001 (1423-3740001 / 1-423-3740001) +1-423-3740002 / 0111-423-3740002 (1423-3740002 / 1-423-3740002) +1-423-3740003 / 0111-423-3740003 (1423-3740003 / 1-423-3740003) +1-423-3740004 / 0111-423-3740004 (1423-3740004 / 1-423-3740004) ...+1-423-xxxxxxx / 0111-423-xxxxxxx (1423-xxxxxxx / 1-423-xxxxxxx) ...+1-423-3749995 / 0111-423-3749995 (1423-3749995 / 1-423-3749995) +1-423-3749996 / 0111-423-3749996 (1423-3749996 / 1-423-3749996) +1-423-3749997 / 0111-423-3749997 (1423-3749997 / 1-423-3749997) +1-423-3749998 / 0111-423-3749998 (1423-3749998 / 1-423-3749998) +1-423-3749999 / 0111-423-3749999 (1423-3749999 / 1-423-3749999)