Area Code +55-21-(23917000...23917999) located in Rio de Janeiro, 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 : 23917000 Subscriber Number To : 23917999 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 : FALKLAND TECNOLOGIA EM TELECOM 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 : Rio de Janeiro Timezone : America/Sao_Paulo Coordinated Universal Time : -03:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : -22.9000 Longitude : -43.2100 ‹ previous : +55-21-(23916000...23916999) next › : +55-21-(23918000...23918999) Dialling Instructions For trunk calls: 0 21 23917000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 55 21 23917000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 23917000 ~ 23917999 (Count: 1,000) Example: +55-21-23917000 / 0055-21-23917000 (021-23917000 / 0-21-23917000) +55-21-23917001 / 0055-21-23917001 (021-23917001 / 0-21-23917001) +55-21-23917002 / 0055-21-23917002 (021-23917002 / 0-21-23917002) +55-21-23917003 / 0055-21-23917003 (021-23917003 / 0-21-23917003) +55-21-23917004 / 0055-21-23917004 (021-23917004 / 0-21-23917004) ...+55-21-xxxxxxxx / 0055-21-xxxxxxxx (021-xxxxxxxx / 0-21-xxxxxxxx) ...+55-21-23917995 / 0055-21-23917995 (021-23917995 / 0-21-23917995) +55-21-23917996 / 0055-21-23917996 (021-23917996 / 0-21-23917996) +55-21-23917997 / 0055-21-23917997 (021-23917997 / 0-21-23917997) +55-21-23917998 / 0055-21-23917998 (021-23917998 / 0-21-23917998) +55-21-23917999 / 0055-21-23917999 (021-23917999 / 0-21-23917999)