Area Code +52-421-(4730000...4730495) 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 : 4730000 Subscriber Number To : 4730495 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 : 20.2000 Longitude : -100.3600 ‹ previous : +52-421-(4729000...4729999) next › : +52-421-(4730496...4730623) Dialling Instructions For trunk calls: 1 421 4730000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 421 4730000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4730000 ~ 4730495 (Count: 496) Example: +52-421-4730000 / 0052-421-4730000 (01421-4730000 / 01-421-4730000) +52-421-4730001 / 0052-421-4730001 (01421-4730001 / 01-421-4730001) +52-421-4730002 / 0052-421-4730002 (01421-4730002 / 01-421-4730002) +52-421-4730003 / 0052-421-4730003 (01421-4730003 / 01-421-4730003) +52-421-4730004 / 0052-421-4730004 (01421-4730004 / 01-421-4730004) ...+52-421-xxxxxxx / 0052-421-xxxxxxx (01421-xxxxxxx / 01-421-xxxxxxx) ...+52-421-4730491 / 0052-421-4730491 (01421-4730491 / 01-421-4730491) +52-421-4730492 / 0052-421-4730492 (01421-4730492 / 01-421-4730492) +52-421-4730493 / 0052-421-4730493 (01421-4730493 / 01-421-4730493) +52-421-4730494 / 0052-421-4730494 (01421-4730494 / 01-421-4730494) +52-421-4730495 / 0052-421-4730495 (01421-4730495 / 01-421-4730495)