Area Code +1-539-(5739000...5739999) located in Tulsa, Oklahoma (OK), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 539 Subscriber Number From : 5739000 Subscriber Number To : 5739999 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 : SOUTHWESTERN BELL 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 : Tulsa Timezone : America/Chicago Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 36.1500 Longitude : -95.9900 ‹ previous : +1-539-(5738000...5738999) next › : +1-539-(6640000...6640999) Dialling Instructions For trunk calls: 0 539 5739000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 539 5739000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5739000 ~ 5739999 (Count: 1,000) Example: +1-539-5739000 / 0111-539-5739000 (1539-5739000 / 1-539-5739000) +1-539-5739001 / 0111-539-5739001 (1539-5739001 / 1-539-5739001) +1-539-5739002 / 0111-539-5739002 (1539-5739002 / 1-539-5739002) +1-539-5739003 / 0111-539-5739003 (1539-5739003 / 1-539-5739003) +1-539-5739004 / 0111-539-5739004 (1539-5739004 / 1-539-5739004) ...+1-539-xxxxxxx / 0111-539-xxxxxxx (1539-xxxxxxx / 1-539-xxxxxxx) ...+1-539-5739995 / 0111-539-5739995 (1539-5739995 / 1-539-5739995) +1-539-5739996 / 0111-539-5739996 (1539-5739996 / 1-539-5739996) +1-539-5739997 / 0111-539-5739997 (1539-5739997 / 1-539-5739997) +1-539-5739998 / 0111-539-5739998 (1539-5739998 / 1-539-5739998) +1-539-5739999 / 0111-539-5739999 (1539-5739999 / 1-539-5739999)