Area Code +55-21-(20105000...20105999) located in Niterói, Rio de Janeiro (RJ), more detail is as below. Place International Dialing Code : 55 International Prefix : 00 National Prefix : 0 National Destination Code : 21 Subscriber Number From : 20105000 Subscriber Number To : 20105999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : OSTARA TELECOMUNICAÇÕES LTDA Click here to buy Brazil Area Code Database Other Information Language Code : pt (Portuguese) Country Number : 76 (Brazil) Country Code : BR (Brazil) Region Code : RJ Region Name : Rio de Janeiro City : Niterói Timezone : America/Sao_Paulo Coordinated Universal Time : -03:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : -22.8800 Longitude : -43.1000 ‹ previous : +55-21-(20104000...20104999) next › : +55-21-(20106000...20106999) Dialling Instructions For trunk calls: 0 21 20105000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 55 21 20105000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 20105000 ~ 20105999 (Count: 1,000) Example: +55-21-20105000 / 0055-21-20105000 (021-20105000 / 0-21-20105000) +55-21-20105001 / 0055-21-20105001 (021-20105001 / 0-21-20105001) +55-21-20105002 / 0055-21-20105002 (021-20105002 / 0-21-20105002) +55-21-20105003 / 0055-21-20105003 (021-20105003 / 0-21-20105003) +55-21-20105004 / 0055-21-20105004 (021-20105004 / 0-21-20105004) ...+55-21-xxxxxxxx / 0055-21-xxxxxxxx (021-xxxxxxxx / 0-21-xxxxxxxx) ...+55-21-20105995 / 0055-21-20105995 (021-20105995 / 0-21-20105995) +55-21-20105996 / 0055-21-20105996 (021-20105996 / 0-21-20105996) +55-21-20105997 / 0055-21-20105997 (021-20105997 / 0-21-20105997) +55-21-20105998 / 0055-21-20105998 (021-20105998 / 0-21-20105998) +55-21-20105999 / 0055-21-20105999 (021-20105999 / 0-21-20105999)