Area Code +52-81-(20570000...20570999) located in Santiago, Nuevo León (NLE), more detail is as below. Place International Dialing Code : 52 International Prefix : 00 National Prefix : 01 National Destination Code : 81 Subscriber Number From : 20570000 Subscriber Number To : 20570999 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 : IP MATRIX, 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 : NLE Region Name : Nuevo León City : Santiago Timezone : America/Monterrey Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 25.4300 Longitude : -100.1500 ‹ previous : +52-81-(20560000...20569999) next › : +52-81-(20571000...20571999) Dialling Instructions For trunk calls: 1 81 20570000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 81 20570000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 20570000 ~ 20570999 (Count: 1,000) Example: +52-81-20570000 / 0052-81-20570000 (0181-20570000 / 01-81-20570000) +52-81-20570001 / 0052-81-20570001 (0181-20570001 / 01-81-20570001) +52-81-20570002 / 0052-81-20570002 (0181-20570002 / 01-81-20570002) +52-81-20570003 / 0052-81-20570003 (0181-20570003 / 01-81-20570003) +52-81-20570004 / 0052-81-20570004 (0181-20570004 / 01-81-20570004) ...+52-81-xxxxxxxx / 0052-81-xxxxxxxx (0181-xxxxxxxx / 01-81-xxxxxxxx) ...+52-81-20570995 / 0052-81-20570995 (0181-20570995 / 01-81-20570995) +52-81-20570996 / 0052-81-20570996 (0181-20570996 / 01-81-20570996) +52-81-20570997 / 0052-81-20570997 (0181-20570997 / 01-81-20570997) +52-81-20570998 / 0052-81-20570998 (0181-20570998 / 01-81-20570998) +52-81-20570999 / 0052-81-20570999 (0181-20570999 / 01-81-20570999)