Area Code +1-210-(3191000...3191999) located in San Antonio, Texas (TX), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 210 Subscriber Number From : 3191000 Subscriber Number To : 3191999 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 : XO TEXAS INC. Click here to buy United States Area Code Database Other Information Language Code : en (English) Country Number : 840 (United States) Country Code : US (United States) Region Code : TX Region Name : Texas City : San Antonio Timezone : America/Chicago Coordinated Universal Time : -06:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 29.4300 Longitude : -98.4800 ‹ previous : +1-210-(3190000...3190999) next › : +1-210-(3192000...3192999) Dialling Instructions For trunk calls: 0 210 3191000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 210 3191000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3191000 ~ 3191999 (Count: 1,000) Example: +1-210-3191000 / 0111-210-3191000 (1210-3191000 / 1-210-3191000) +1-210-3191001 / 0111-210-3191001 (1210-3191001 / 1-210-3191001) +1-210-3191002 / 0111-210-3191002 (1210-3191002 / 1-210-3191002) +1-210-3191003 / 0111-210-3191003 (1210-3191003 / 1-210-3191003) +1-210-3191004 / 0111-210-3191004 (1210-3191004 / 1-210-3191004) ...+1-210-xxxxxxx / 0111-210-xxxxxxx (1210-xxxxxxx / 1-210-xxxxxxx) ...+1-210-3191995 / 0111-210-3191995 (1210-3191995 / 1-210-3191995) +1-210-3191996 / 0111-210-3191996 (1210-3191996 / 1-210-3191996) +1-210-3191997 / 0111-210-3191997 (1210-3191997 / 1-210-3191997) +1-210-3191998 / 0111-210-3191998 (1210-3191998 / 1-210-3191998) +1-210-3191999 / 0111-210-3191999 (1210-3191999 / 1-210-3191999)