Area Code +52-866-(1023000...1029999) located in Monclova, Coahuila (COA), more detail is as below. Place International Dialing Code : 52 International Prefix : 00 National Prefix : 01 Cell Prefix : 1 National Destination Code : 866 Subscriber Number From : 1023000 Subscriber Number To : 1029999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : IUSACELL PCS, S.A. DE C.V. Click here to buy Mexico Area Code Database Other Information Language Code : es (Spanish) Country Number : 484 (Mexico) Country Code : MX (Mexico) Region Code : COA Region Name : Coahuila City : Monclova Timezone : America/Monterrey Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 26.9000 Longitude : -101.4200 ‹ previous : +52-866-(1020000...1022999) next › : +52-866-(1030000...1039999) Dialling Instructions For trunk calls: 1 866 1023000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 866 1023000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 1023000 ~ 1029999 (Count: 7,000) Example: +52-866-1023000 / 0052-866-1023000 (01866-1023000 / 01-866-1023000) +52-866-1023001 / 0052-866-1023001 (01866-1023001 / 01-866-1023001) +52-866-1023002 / 0052-866-1023002 (01866-1023002 / 01-866-1023002) +52-866-1023003 / 0052-866-1023003 (01866-1023003 / 01-866-1023003) +52-866-1023004 / 0052-866-1023004 (01866-1023004 / 01-866-1023004) ...+52-866-xxxxxxx / 0052-866-xxxxxxx (01866-xxxxxxx / 01-866-xxxxxxx) ...+52-866-1029995 / 0052-866-1029995 (01866-1029995 / 01-866-1029995) +52-866-1029996 / 0052-866-1029996 (01866-1029996 / 01-866-1029996) +52-866-1029997 / 0052-866-1029997 (01866-1029997 / 01-866-1029997) +52-866-1029998 / 0052-866-1029998 (01866-1029998 / 01-866-1029998) +52-866-1029999 / 0052-866-1029999 (01866-1029999 / 01-866-1029999)