Area Code +1-312-(2528000...2528999) 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 : 2528000 Subscriber Number To : 2528999 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 : ALLEGIANCE TELCOM IL 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-(2527000...2527999) next › : +1-312-(2529000...2529999) Dialling Instructions For trunk calls: 0 312 2528000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 312 2528000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2528000 ~ 2528999 (Count: 1,000) Example: +1-312-2528000 / 0111-312-2528000 (1312-2528000 / 1-312-2528000) +1-312-2528001 / 0111-312-2528001 (1312-2528001 / 1-312-2528001) +1-312-2528002 / 0111-312-2528002 (1312-2528002 / 1-312-2528002) +1-312-2528003 / 0111-312-2528003 (1312-2528003 / 1-312-2528003) +1-312-2528004 / 0111-312-2528004 (1312-2528004 / 1-312-2528004) ...+1-312-xxxxxxx / 0111-312-xxxxxxx (1312-xxxxxxx / 1-312-xxxxxxx) ...+1-312-2528995 / 0111-312-2528995 (1312-2528995 / 1-312-2528995) +1-312-2528996 / 0111-312-2528996 (1312-2528996 / 1-312-2528996) +1-312-2528997 / 0111-312-2528997 (1312-2528997 / 1-312-2528997) +1-312-2528998 / 0111-312-2528998 (1312-2528998 / 1-312-2528998) +1-312-2528999 / 0111-312-2528999 (1312-2528999 / 1-312-2528999)
