Area Code +52-81-(15500000...15509999) 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 : 15500000 Subscriber Number To : 15509999 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 : TOTAL PLAY TELECOMUNICACIONES, 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-(15490000...15499999) next › : +52-81-(15510000...15519999) Dialling Instructions For trunk calls: 1 81 15500000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 81 15500000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 15500000 ~ 15509999 (Count: 10,000) Example: +52-81-15500000 / 0052-81-15500000 (0181-15500000 / 01-81-15500000) +52-81-15500001 / 0052-81-15500001 (0181-15500001 / 01-81-15500001) +52-81-15500002 / 0052-81-15500002 (0181-15500002 / 01-81-15500002) +52-81-15500003 / 0052-81-15500003 (0181-15500003 / 01-81-15500003) +52-81-15500004 / 0052-81-15500004 (0181-15500004 / 01-81-15500004) ...+52-81-xxxxxxxx / 0052-81-xxxxxxxx (0181-xxxxxxxx / 01-81-xxxxxxxx) ...+52-81-15509995 / 0052-81-15509995 (0181-15509995 / 01-81-15509995) +52-81-15509996 / 0052-81-15509996 (0181-15509996 / 01-81-15509996) +52-81-15509997 / 0052-81-15509997 (0181-15509997 / 01-81-15509997) +52-81-15509998 / 0052-81-15509998 (0181-15509998 / 01-81-15509998) +52-81-15509999 / 0052-81-15509999 (0181-15509999 / 01-81-15509999)