Area Code +1-210-(3954000...3954999) 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 : 3954000 Subscriber Number To : 3954999 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-(3953000...3953999) next › : +1-210-(3955000...3955999) Dialling Instructions For trunk calls: 0 210 3954000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 210 3954000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3954000 ~ 3954999 (Count: 1,000) Example: +1-210-3954000 / 0111-210-3954000 (1210-3954000 / 1-210-3954000) +1-210-3954001 / 0111-210-3954001 (1210-3954001 / 1-210-3954001) +1-210-3954002 / 0111-210-3954002 (1210-3954002 / 1-210-3954002) +1-210-3954003 / 0111-210-3954003 (1210-3954003 / 1-210-3954003) +1-210-3954004 / 0111-210-3954004 (1210-3954004 / 1-210-3954004) ...+1-210-xxxxxxx / 0111-210-xxxxxxx (1210-xxxxxxx / 1-210-xxxxxxx) ...+1-210-3954995 / 0111-210-3954995 (1210-3954995 / 1-210-3954995) +1-210-3954996 / 0111-210-3954996 (1210-3954996 / 1-210-3954996) +1-210-3954997 / 0111-210-3954997 (1210-3954997 / 1-210-3954997) +1-210-3954998 / 0111-210-3954998 (1210-3954998 / 1-210-3954998) +1-210-3954999 / 0111-210-3954999 (1210-3954999 / 1-210-3954999)