Area Code +1-312-(2025000...2025999) located in Chicago, Illinois (IL), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 312 Subscriber Number From : 2025000 Subscriber Number To : 2025999 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 : AMERITECH ILLINOIS 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 : IL Region Name : Illinois City : Chicago Timezone : America/Chicago Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 41.8800 Longitude : -87.6400 ‹ previous : +1-312-(2024000...2024999) next › : +1-312-(2026000...2026999) Dialling Instructions For trunk calls: 0 312 2025000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 312 2025000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2025000 ~ 2025999 (Count: 1,000) Example: +1-312-2025000 / 0111-312-2025000 (1312-2025000 / 1-312-2025000) +1-312-2025001 / 0111-312-2025001 (1312-2025001 / 1-312-2025001) +1-312-2025002 / 0111-312-2025002 (1312-2025002 / 1-312-2025002) +1-312-2025003 / 0111-312-2025003 (1312-2025003 / 1-312-2025003) +1-312-2025004 / 0111-312-2025004 (1312-2025004 / 1-312-2025004) ...+1-312-xxxxxxx / 0111-312-xxxxxxx (1312-xxxxxxx / 1-312-xxxxxxx) ...+1-312-2025995 / 0111-312-2025995 (1312-2025995 / 1-312-2025995) +1-312-2025996 / 0111-312-2025996 (1312-2025996 / 1-312-2025996) +1-312-2025997 / 0111-312-2025997 (1312-2025997 / 1-312-2025997) +1-312-2025998 / 0111-312-2025998 (1312-2025998 / 1-312-2025998) +1-312-2025999 / 0111-312-2025999 (1312-2025999 / 1-312-2025999)
