Area Code +1-210-(8550000...8559999) 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 : 8550000 Subscriber Number To : 8559999 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 : TW TELECOM OF TEXAS 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-(8540000...8549999) next › : +1-210-(8560000...8569999) Dialling Instructions For trunk calls: 0 210 8550000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 210 8550000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8550000 ~ 8559999 (Count: 10,000) Example: +1-210-8550000 / 0111-210-8550000 (1210-8550000 / 1-210-8550000) +1-210-8550001 / 0111-210-8550001 (1210-8550001 / 1-210-8550001) +1-210-8550002 / 0111-210-8550002 (1210-8550002 / 1-210-8550002) +1-210-8550003 / 0111-210-8550003 (1210-8550003 / 1-210-8550003) +1-210-8550004 / 0111-210-8550004 (1210-8550004 / 1-210-8550004) ...+1-210-xxxxxxx / 0111-210-xxxxxxx (1210-xxxxxxx / 1-210-xxxxxxx) ...+1-210-8559995 / 0111-210-8559995 (1210-8559995 / 1-210-8559995) +1-210-8559996 / 0111-210-8559996 (1210-8559996 / 1-210-8559996) +1-210-8559997 / 0111-210-8559997 (1210-8559997 / 1-210-8559997) +1-210-8559998 / 0111-210-8559998 (1210-8559998 / 1-210-8559998) +1-210-8559999 / 0111-210-8559999 (1210-8559999 / 1-210-8559999)