Area Code +1-210-(4570000...4579999) 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 : 4570000 Subscriber Number To : 4579999 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 : ICG CHOICE - TX 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-(4560000...4569999) next › : +1-210-(4580000...4589999) Dialling Instructions For trunk calls: 0 210 4570000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 210 4570000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4570000 ~ 4579999 (Count: 10,000) Example: +1-210-4570000 / 0111-210-4570000 (1210-4570000 / 1-210-4570000) +1-210-4570001 / 0111-210-4570001 (1210-4570001 / 1-210-4570001) +1-210-4570002 / 0111-210-4570002 (1210-4570002 / 1-210-4570002) +1-210-4570003 / 0111-210-4570003 (1210-4570003 / 1-210-4570003) +1-210-4570004 / 0111-210-4570004 (1210-4570004 / 1-210-4570004) ...+1-210-xxxxxxx / 0111-210-xxxxxxx (1210-xxxxxxx / 1-210-xxxxxxx) ...+1-210-4579995 / 0111-210-4579995 (1210-4579995 / 1-210-4579995) +1-210-4579996 / 0111-210-4579996 (1210-4579996 / 1-210-4579996) +1-210-4579997 / 0111-210-4579997 (1210-4579997 / 1-210-4579997) +1-210-4579998 / 0111-210-4579998 (1210-4579998 / 1-210-4579998) +1-210-4579999 / 0111-210-4579999 (1210-4579999 / 1-210-4579999)