Area Code +52-637-(3740000...3740519) located in Altar, Sonora (SON), more detail is as below. Place International Dialing Code : 52 International Prefix : 00 National Prefix : 01 National Destination Code : 637 Subscriber Number From : 3740000 Subscriber Number To : 3740519 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 : SON Region Name : Sonora City : Altar Timezone : America/Hermosillo Coordinated Universal Time : -07:00 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : 30.7100 Longitude : -111.8400 ‹ previous : +52-637-(3739000...3739999) next › : +52-637-(3740520...3740899) Dialling Instructions For trunk calls: 1 637 3740000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 637 3740000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3740000 ~ 3740519 (Count: 520) Example: +52-637-3740000 / 0052-637-3740000 (01637-3740000 / 01-637-3740000) +52-637-3740001 / 0052-637-3740001 (01637-3740001 / 01-637-3740001) +52-637-3740002 / 0052-637-3740002 (01637-3740002 / 01-637-3740002) +52-637-3740003 / 0052-637-3740003 (01637-3740003 / 01-637-3740003) +52-637-3740004 / 0052-637-3740004 (01637-3740004 / 01-637-3740004) ...+52-637-xxxxxxx / 0052-637-xxxxxxx (01637-xxxxxxx / 01-637-xxxxxxx) ...+52-637-3740515 / 0052-637-3740515 (01637-3740515 / 01-637-3740515) +52-637-3740516 / 0052-637-3740516 (01637-3740516 / 01-637-3740516) +52-637-3740517 / 0052-637-3740517 (01637-3740517 / 01-637-3740517) +52-637-3740518 / 0052-637-3740518 (01637-3740518 / 01-637-3740518) +52-637-3740519 / 0052-637-3740519 (01637-3740519 / 01-637-3740519)
