Area Code +52-866-(6976000...6978799) located in Castaños, 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 : 6976000 Subscriber Number To : 6978799 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 : Castaños Timezone : America/Monterrey Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 26.7900 Longitude : -101.4300 ‹ previous : +52-866-(6975000...6975999) next › : +52-866-(6978800...6979999) Dialling Instructions For trunk calls: 1 866 6976000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 866 6976000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6976000 ~ 6978799 (Count: 2,800) Example: +52-866-6976000 / 0052-866-6976000 (01866-6976000 / 01-866-6976000) +52-866-6976001 / 0052-866-6976001 (01866-6976001 / 01-866-6976001) +52-866-6976002 / 0052-866-6976002 (01866-6976002 / 01-866-6976002) +52-866-6976003 / 0052-866-6976003 (01866-6976003 / 01-866-6976003) +52-866-6976004 / 0052-866-6976004 (01866-6976004 / 01-866-6976004) ...+52-866-xxxxxxx / 0052-866-xxxxxxx (01866-xxxxxxx / 01-866-xxxxxxx) ...+52-866-6978795 / 0052-866-6978795 (01866-6978795 / 01-866-6978795) +52-866-6978796 / 0052-866-6978796 (01866-6978796 / 01-866-6978796) +52-866-6978797 / 0052-866-6978797 (01866-6978797 / 01-866-6978797) +52-866-6978798 / 0052-866-6978798 (01866-6978798 / 01-866-6978798) +52-866-6978799 / 0052-866-6978799 (01866-6978799 / 01-866-6978799)