Area Code +1-580-(3017000...3017999) located in Altus, Oklahoma (OK), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 580 Subscriber Number From : 3017000 Subscriber Number To : 3017999 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 : LEVEL 3 COMM - OK 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 : OK Region Name : Oklahoma City : Altus Timezone : America/Chicago Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 34.6400 Longitude : -99.3300 ‹ previous : +1-580-(3016000...3016999) next › : +1-580-(3018000...3018999) Dialling Instructions For trunk calls: 0 580 3017000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 580 3017000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3017000 ~ 3017999 (Count: 1,000) Example: +1-580-3017000 / 0111-580-3017000 (1580-3017000 / 1-580-3017000) +1-580-3017001 / 0111-580-3017001 (1580-3017001 / 1-580-3017001) +1-580-3017002 / 0111-580-3017002 (1580-3017002 / 1-580-3017002) +1-580-3017003 / 0111-580-3017003 (1580-3017003 / 1-580-3017003) +1-580-3017004 / 0111-580-3017004 (1580-3017004 / 1-580-3017004) ...+1-580-xxxxxxx / 0111-580-xxxxxxx (1580-xxxxxxx / 1-580-xxxxxxx) ...+1-580-3017995 / 0111-580-3017995 (1580-3017995 / 1-580-3017995) +1-580-3017996 / 0111-580-3017996 (1580-3017996 / 1-580-3017996) +1-580-3017997 / 0111-580-3017997 (1580-3017997 / 1-580-3017997) +1-580-3017998 / 0111-580-3017998 (1580-3017998 / 1-580-3017998) +1-580-3017999 / 0111-580-3017999 (1580-3017999 / 1-580-3017999)