Area Code +52-81-(15970000...15979999) located in Monterrey, 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 : 15970000 Subscriber Number To : 15979999 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 : INTERNET POR FIBRA, 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 : Monterrey Timezone : America/Monterrey Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 25.6700 Longitude : -100.3100 ‹ previous : +52-81-(15960000...15969999) next › : +52-81-(15980000...15984999) Dialling Instructions For trunk calls: 1 81 15970000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 81 15970000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 15970000 ~ 15979999 (Count: 10,000) Example: +52-81-15970000 / 0052-81-15970000 (0181-15970000 / 01-81-15970000) +52-81-15970001 / 0052-81-15970001 (0181-15970001 / 01-81-15970001) +52-81-15970002 / 0052-81-15970002 (0181-15970002 / 01-81-15970002) +52-81-15970003 / 0052-81-15970003 (0181-15970003 / 01-81-15970003) +52-81-15970004 / 0052-81-15970004 (0181-15970004 / 01-81-15970004) ...+52-81-xxxxxxxx / 0052-81-xxxxxxxx (0181-xxxxxxxx / 01-81-xxxxxxxx) ...+52-81-15979995 / 0052-81-15979995 (0181-15979995 / 01-81-15979995) +52-81-15979996 / 0052-81-15979996 (0181-15979996 / 01-81-15979996) +52-81-15979997 / 0052-81-15979997 (0181-15979997 / 01-81-15979997) +52-81-15979998 / 0052-81-15979998 (0181-15979998 / 01-81-15979998) +52-81-15979999 / 0052-81-15979999 (0181-15979999 / 01-81-15979999)
