Area Code +52-444-(2550000...2559999) located in San Luis Potosí, San Luis (SLP), more detail is as below. Place International Dialing Code : 52 International Prefix : 00 National Prefix : 01 National Destination Code : 444 Subscriber Number From : 2550000 Subscriber Number To : 2559999 National Destination Code Length : 3 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 : SLP Region Name : San Luis City : San Luis Potosí Timezone : America/Mexico_City Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 22.1500 Longitude : -100.9800 ‹ previous : +52-444-(2547000...2549999) next › : +52-444-(2560000...2569999) Dialling Instructions For trunk calls: 1 444 2550000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 444 2550000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2550000 ~ 2559999 (Count: 10,000) Example: +52-444-2550000 / 0052-444-2550000 (01444-2550000 / 01-444-2550000) +52-444-2550001 / 0052-444-2550001 (01444-2550001 / 01-444-2550001) +52-444-2550002 / 0052-444-2550002 (01444-2550002 / 01-444-2550002) +52-444-2550003 / 0052-444-2550003 (01444-2550003 / 01-444-2550003) +52-444-2550004 / 0052-444-2550004 (01444-2550004 / 01-444-2550004) ...+52-444-xxxxxxx / 0052-444-xxxxxxx (01444-xxxxxxx / 01-444-xxxxxxx) ...+52-444-2559995 / 0052-444-2559995 (01444-2559995 / 01-444-2559995) +52-444-2559996 / 0052-444-2559996 (01444-2559996 / 01-444-2559996) +52-444-2559997 / 0052-444-2559997 (01444-2559997 / 01-444-2559997) +52-444-2559998 / 0052-444-2559998 (01444-2559998 / 01-444-2559998) +52-444-2559999 / 0052-444-2559999 (01444-2559999 / 01-444-2559999)