Area Code +52-831-(1000000...1001499) located in El Mante, Tamaulipas (TAM), more detail is as below. Place International Dialing Code : 52 International Prefix : 00 National Prefix : 01 Cell Prefix : 1 National Destination Code : 831 Subscriber Number From : 1000000 Subscriber Number To : 1001499 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : OPERADORA UNEFON, 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 : TAM Region Name : Tamaulipas City : El Mante Timezone : America/Monterrey Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 22.7400 Longitude : -98.9700 ‹ previous : +52-829-(6900000...6909999) next › : +52-831-(1001500...1009999) Dialling Instructions For trunk calls: 1 831 1000000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 831 1000000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 1000000 ~ 1001499 (Count: 1,500) Example: +52-831-1000000 / 0052-831-1000000 (01831-1000000 / 01-831-1000000) +52-831-1000001 / 0052-831-1000001 (01831-1000001 / 01-831-1000001) +52-831-1000002 / 0052-831-1000002 (01831-1000002 / 01-831-1000002) +52-831-1000003 / 0052-831-1000003 (01831-1000003 / 01-831-1000003) +52-831-1000004 / 0052-831-1000004 (01831-1000004 / 01-831-1000004) ...+52-831-xxxxxxx / 0052-831-xxxxxxx (01831-xxxxxxx / 01-831-xxxxxxx) ...+52-831-1001495 / 0052-831-1001495 (01831-1001495 / 01-831-1001495) +52-831-1001496 / 0052-831-1001496 (01831-1001496 / 01-831-1001496) +52-831-1001497 / 0052-831-1001497 (01831-1001497 / 01-831-1001497) +52-831-1001498 / 0052-831-1001498 (01831-1001498 / 01-831-1001498) +52-831-1001499 / 0052-831-1001499 (01831-1001499 / 01-831-1001499)