Area Code +52-81-(20550000...20559999) located in San Nicolás de los Garza, 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 : 20550000 Subscriber Number To : 20559999 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 : San Nicolás de los Garza Timezone : America/Monterrey Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 25.7400 Longitude : -100.3000 ‹ previous : +52-81-(20540000...20549999) next › : +52-81-(20560000...20569999) Dialling Instructions For trunk calls: 1 81 20550000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 81 20550000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 20550000 ~ 20559999 (Count: 10,000) Example: +52-81-20550000 / 0052-81-20550000 (0181-20550000 / 01-81-20550000) +52-81-20550001 / 0052-81-20550001 (0181-20550001 / 01-81-20550001) +52-81-20550002 / 0052-81-20550002 (0181-20550002 / 01-81-20550002) +52-81-20550003 / 0052-81-20550003 (0181-20550003 / 01-81-20550003) +52-81-20550004 / 0052-81-20550004 (0181-20550004 / 01-81-20550004) ...+52-81-xxxxxxxx / 0052-81-xxxxxxxx (0181-xxxxxxxx / 01-81-xxxxxxxx) ...+52-81-20559995 / 0052-81-20559995 (0181-20559995 / 01-81-20559995) +52-81-20559996 / 0052-81-20559996 (0181-20559996 / 01-81-20559996) +52-81-20559997 / 0052-81-20559997 (0181-20559997 / 01-81-20559997) +52-81-20559998 / 0052-81-20559998 (0181-20559998 / 01-81-20559998) +52-81-20559999 / 0052-81-20559999 (0181-20559999 / 01-81-20559999)