Area Code +52-444-(1018000...1018895) 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 : 1018000 Subscriber Number To : 1018895 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-(1017000...1017255) next › : +52-444-(1018896...1019999) Dialling Instructions For trunk calls: 1 444 1018000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 52 444 1018000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 1018000 ~ 1018895 (Count: 896) Example: +52-444-1018000 / 0052-444-1018000 (01444-1018000 / 01-444-1018000) +52-444-1018001 / 0052-444-1018001 (01444-1018001 / 01-444-1018001) +52-444-1018002 / 0052-444-1018002 (01444-1018002 / 01-444-1018002) +52-444-1018003 / 0052-444-1018003 (01444-1018003 / 01-444-1018003) +52-444-1018004 / 0052-444-1018004 (01444-1018004 / 01-444-1018004) ...+52-444-xxxxxxx / 0052-444-xxxxxxx (01444-xxxxxxx / 01-444-xxxxxxx) ...+52-444-1018891 / 0052-444-1018891 (01444-1018891 / 01-444-1018891) +52-444-1018892 / 0052-444-1018892 (01444-1018892 / 01-444-1018892) +52-444-1018893 / 0052-444-1018893 (01444-1018893 / 01-444-1018893) +52-444-1018894 / 0052-444-1018894 (01444-1018894 / 01-444-1018894) +52-444-1018895 / 0052-444-1018895 (01444-1018895 / 01-444-1018895)