Area Code +52-55-(20640000...20643999) located in Cuautitlán, México (MEX), more detail is as below. Place International Dialing Code : 52 International Prefix : 00 National Prefix : 01 National Destination Code : 55 Subscriber Number From : 20640000 Subscriber Number To : 20643999 National Destination Code Length : 2 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 : MEX Region Name : México City : Cuautitlán Timezone : America/Mexico_City Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 19.6700 Longitude : -99.1800 ‹ previous : +52-55-(20636000...20638761) next › : +52-55-(20644000...20644499) Dialling Instructions For trunk calls: 1 55 20640000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 55 20640000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 20640000 ~ 20643999 (Count: 4,000) Example: +52-55-20640000 / 0052-55-20640000 (0155-20640000 / 01-55-20640000) +52-55-20640001 / 0052-55-20640001 (0155-20640001 / 01-55-20640001) +52-55-20640002 / 0052-55-20640002 (0155-20640002 / 01-55-20640002) +52-55-20640003 / 0052-55-20640003 (0155-20640003 / 01-55-20640003) +52-55-20640004 / 0052-55-20640004 (0155-20640004 / 01-55-20640004) ...+52-55-xxxxxxxx / 0052-55-xxxxxxxx (0155-xxxxxxxx / 01-55-xxxxxxxx) ...+52-55-20643995 / 0052-55-20643995 (0155-20643995 / 01-55-20643995) +52-55-20643996 / 0052-55-20643996 (0155-20643996 / 01-55-20643996) +52-55-20643997 / 0052-55-20643997 (0155-20643997 / 01-55-20643997) +52-55-20643998 / 0052-55-20643998 (0155-20643998 / 01-55-20643998) +52-55-20643999 / 0052-55-20643999 (0155-20643999 / 01-55-20643999)