Area Code +52-421-(4542510...4542809) located in Coroneo, Guanajuato (GUA), more detail is as below. Place International Dialing Code : 52 International Prefix : 00 National Prefix : 01 National Destination Code : 421 Subscriber Number From : 4542510 Subscriber Number To : 4542809 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 : GUA Region Name : Guanajuato City : Coroneo Timezone : America/Mexico_City Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 20.2600 Longitude : -100.3400 ‹ previous : +52-421-(4542000...4542509) next › : +52-421-(4543000...4543509) Dialling Instructions For trunk calls: 1 421 4542510 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 421 4542510 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4542510 ~ 4542809 (Count: 300) Example: +52-421-4542510 / 0052-421-4542510 (01421-4542510 / 01-421-4542510) +52-421-4542511 / 0052-421-4542511 (01421-4542511 / 01-421-4542511) +52-421-4542512 / 0052-421-4542512 (01421-4542512 / 01-421-4542512) +52-421-4542513 / 0052-421-4542513 (01421-4542513 / 01-421-4542513) +52-421-4542514 / 0052-421-4542514 (01421-4542514 / 01-421-4542514) ...+52-421-xxxxxxx / 0052-421-xxxxxxx (01421-xxxxxxx / 01-421-xxxxxxx) ...+52-421-4542805 / 0052-421-4542805 (01421-4542805 / 01-421-4542805) +52-421-4542806 / 0052-421-4542806 (01421-4542806 / 01-421-4542806) +52-421-4542807 / 0052-421-4542807 (01421-4542807 / 01-421-4542807) +52-421-4542808 / 0052-421-4542808 (01421-4542808 / 01-421-4542808) +52-421-4542809 / 0052-421-4542809 (01421-4542809 / 01-421-4542809)