Area Code +52-866-(1050000...1053999) located in Monclova, Coahuila (COA), more detail is as below. Place International Dialing Code : 52 International Prefix : 00 National Prefix : 01 National Destination Code : 866 Subscriber Number From : 1050000 Subscriber Number To : 1053999 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 : TELEFONOS DE MEXICO, S.A.B. 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-(1040000...1049999) next › : +52-866-(1054000...1055999) Dialling Instructions For trunk calls: 1 866 1050000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 866 1050000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 1050000 ~ 1053999 (Count: 4,000) Example: +52-866-1050000 / 0052-866-1050000 (01866-1050000 / 01-866-1050000) +52-866-1050001 / 0052-866-1050001 (01866-1050001 / 01-866-1050001) +52-866-1050002 / 0052-866-1050002 (01866-1050002 / 01-866-1050002) +52-866-1050003 / 0052-866-1050003 (01866-1050003 / 01-866-1050003) +52-866-1050004 / 0052-866-1050004 (01866-1050004 / 01-866-1050004) ...+52-866-xxxxxxx / 0052-866-xxxxxxx (01866-xxxxxxx / 01-866-xxxxxxx) ...+52-866-1053995 / 0052-866-1053995 (01866-1053995 / 01-866-1053995) +52-866-1053996 / 0052-866-1053996 (01866-1053996 / 01-866-1053996) +52-866-1053997 / 0052-866-1053997 (01866-1053997 / 01-866-1053997) +52-866-1053998 / 0052-866-1053998 (01866-1053998 / 01-866-1053998) +52-866-1053999 / 0052-866-1053999 (01866-1053999 / 01-866-1053999)