Area Code +52-444-(2530000...2539999) 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 : 2530000 Subscriber Number To : 2539999 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 : ALESTRA, S. DE R.L. 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-(2520000...2529999) next › : +52-444-(2540000...2541999) Dialling Instructions For trunk calls: 1 444 2530000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 444 2530000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2530000 ~ 2539999 (Count: 10,000) Example: +52-444-2530000 / 0052-444-2530000 (01444-2530000 / 01-444-2530000) +52-444-2530001 / 0052-444-2530001 (01444-2530001 / 01-444-2530001) +52-444-2530002 / 0052-444-2530002 (01444-2530002 / 01-444-2530002) +52-444-2530003 / 0052-444-2530003 (01444-2530003 / 01-444-2530003) +52-444-2530004 / 0052-444-2530004 (01444-2530004 / 01-444-2530004) ...+52-444-xxxxxxx / 0052-444-xxxxxxx (01444-xxxxxxx / 01-444-xxxxxxx) ...+52-444-2539995 / 0052-444-2539995 (01444-2539995 / 01-444-2539995) +52-444-2539996 / 0052-444-2539996 (01444-2539996 / 01-444-2539996) +52-444-2539997 / 0052-444-2539997 (01444-2539997 / 01-444-2539997) +52-444-2539998 / 0052-444-2539998 (01444-2539998 / 01-444-2539998) +52-444-2539999 / 0052-444-2539999 (01444-2539999 / 01-444-2539999)