Area Code +52-866-(6957100...6957399) 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 : 6957100 Subscriber Number To : 6957399 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-(6957000...6957099) next › : +52-866-(6970000...6971407) Dialling Instructions For trunk calls: 1 866 6957100 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 866 6957100 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6957100 ~ 6957399 (Count: 300) Example: +52-866-6957100 / 0052-866-6957100 (01866-6957100 / 01-866-6957100) +52-866-6957101 / 0052-866-6957101 (01866-6957101 / 01-866-6957101) +52-866-6957102 / 0052-866-6957102 (01866-6957102 / 01-866-6957102) +52-866-6957103 / 0052-866-6957103 (01866-6957103 / 01-866-6957103) +52-866-6957104 / 0052-866-6957104 (01866-6957104 / 01-866-6957104) ...+52-866-xxxxxxx / 0052-866-xxxxxxx (01866-xxxxxxx / 01-866-xxxxxxx) ...+52-866-6957395 / 0052-866-6957395 (01866-6957395 / 01-866-6957395) +52-866-6957396 / 0052-866-6957396 (01866-6957396 / 01-866-6957396) +52-866-6957397 / 0052-866-6957397 (01866-6957397 / 01-866-6957397) +52-866-6957398 / 0052-866-6957398 (01866-6957398 / 01-866-6957398) +52-866-6957399 / 0052-866-6957399 (01866-6957399 / 01-866-6957399)