Area Code +1-405-(2173000...2173999) located in Norman, Oklahoma (OK), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 405 Subscriber Number From : 2173000 Subscriber Number To : 2173999 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 : Norman Timezone : America/Chicago Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 35.2200 Longitude : -97.4400 ‹ previous : +1-405-(2172000...2172999) next › : +1-405-(2174000...2174999) Dialling Instructions For trunk calls: 0 405 2173000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 405 2173000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2173000 ~ 2173999 (Count: 1,000) Example: +1-405-2173000 / 0111-405-2173000 (1405-2173000 / 1-405-2173000) +1-405-2173001 / 0111-405-2173001 (1405-2173001 / 1-405-2173001) +1-405-2173002 / 0111-405-2173002 (1405-2173002 / 1-405-2173002) +1-405-2173003 / 0111-405-2173003 (1405-2173003 / 1-405-2173003) +1-405-2173004 / 0111-405-2173004 (1405-2173004 / 1-405-2173004) ...+1-405-xxxxxxx / 0111-405-xxxxxxx (1405-xxxxxxx / 1-405-xxxxxxx) ...+1-405-2173995 / 0111-405-2173995 (1405-2173995 / 1-405-2173995) +1-405-2173996 / 0111-405-2173996 (1405-2173996 / 1-405-2173996) +1-405-2173997 / 0111-405-2173997 (1405-2173997 / 1-405-2173997) +1-405-2173998 / 0111-405-2173998 (1405-2173998 / 1-405-2173998) +1-405-2173999 / 0111-405-2173999 (1405-2173999 / 1-405-2173999)