Area Code +1-623-(4555000...4555999) located in Phoenix, Arizona (AZ), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 623 Subscriber Number From : 4555000 Subscriber Number To : 4555999 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 - AZ 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 : AZ Region Name : Arizona City : Phoenix Timezone : America/Phoenix Coordinated Universal Time : -07:00 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : 33.4500 Longitude : -112.0700 ‹ previous : +1-623-(4554000...4554999) next › : +1-623-(4556000...4556999) Dialling Instructions For trunk calls: 0 623 4555000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 623 4555000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4555000 ~ 4555999 (Count: 1,000) Example: +1-623-4555000 / 0111-623-4555000 (1623-4555000 / 1-623-4555000) +1-623-4555001 / 0111-623-4555001 (1623-4555001 / 1-623-4555001) +1-623-4555002 / 0111-623-4555002 (1623-4555002 / 1-623-4555002) +1-623-4555003 / 0111-623-4555003 (1623-4555003 / 1-623-4555003) +1-623-4555004 / 0111-623-4555004 (1623-4555004 / 1-623-4555004) ...+1-623-xxxxxxx / 0111-623-xxxxxxx (1623-xxxxxxx / 1-623-xxxxxxx) ...+1-623-4555995 / 0111-623-4555995 (1623-4555995 / 1-623-4555995) +1-623-4555996 / 0111-623-4555996 (1623-4555996 / 1-623-4555996) +1-623-4555997 / 0111-623-4555997 (1623-4555997 / 1-623-4555997) +1-623-4555998 / 0111-623-4555998 (1623-4555998 / 1-623-4555998) +1-623-4555999 / 0111-623-4555999 (1623-4555999 / 1-623-4555999)