Area Code +1-509-(8610000...8619999) located in Omak, Washington (WA), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 509 Subscriber Number From : 8610000 Subscriber Number To : 8619999 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 : 360NTWS (USA) - WA 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 : WA Region Name : Washington City : Omak Timezone : America/Los_Angeles Coordinated Universal Time : -08:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 48.4100 Longitude : -119.5300 ‹ previous : +1-509-(8609000...8609999) next › : +1-509-(8630000...8630999) Dialling Instructions For trunk calls: 0 509 8610000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 509 8610000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8610000 ~ 8619999 (Count: 10,000) Example: +1-509-8610000 / 0111-509-8610000 (1509-8610000 / 1-509-8610000) +1-509-8610001 / 0111-509-8610001 (1509-8610001 / 1-509-8610001) +1-509-8610002 / 0111-509-8610002 (1509-8610002 / 1-509-8610002) +1-509-8610003 / 0111-509-8610003 (1509-8610003 / 1-509-8610003) +1-509-8610004 / 0111-509-8610004 (1509-8610004 / 1-509-8610004) ...+1-509-xxxxxxx / 0111-509-xxxxxxx (1509-xxxxxxx / 1-509-xxxxxxx) ...+1-509-8619995 / 0111-509-8619995 (1509-8619995 / 1-509-8619995) +1-509-8619996 / 0111-509-8619996 (1509-8619996 / 1-509-8619996) +1-509-8619997 / 0111-509-8619997 (1509-8619997 / 1-509-8619997) +1-509-8619998 / 0111-509-8619998 (1509-8619998 / 1-509-8619998) +1-509-8619999 / 0111-509-8619999 (1509-8619999 / 1-509-8619999)