Area Code +55-51-(31888000...31888999) located in Porto Alegre, Rio Grande do Sul (RS), more detail is as below. Place International Dialing Code : 55 International Prefix : 00 National Prefix : 0 National Destination Code : 51 Subscriber Number From : 31888000 Subscriber Number To : 31888999 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 : VOX 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 : RS Region Name : Rio Grande do Sul City : Porto Alegre Timezone : America/Sao_Paulo Coordinated Universal Time : -03:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : -30.0300 Longitude : -51.2300 ‹ previous : +55-51-(31887000...31887999) next › : +55-51-(31889000...31889999) Dialling Instructions For trunk calls: 0 51 31888000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 55 51 31888000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 31888000 ~ 31888999 (Count: 1,000) Example: +55-51-31888000 / 0055-51-31888000 (051-31888000 / 0-51-31888000) +55-51-31888001 / 0055-51-31888001 (051-31888001 / 0-51-31888001) +55-51-31888002 / 0055-51-31888002 (051-31888002 / 0-51-31888002) +55-51-31888003 / 0055-51-31888003 (051-31888003 / 0-51-31888003) +55-51-31888004 / 0055-51-31888004 (051-31888004 / 0-51-31888004) ...+55-51-xxxxxxxx / 0055-51-xxxxxxxx (051-xxxxxxxx / 0-51-xxxxxxxx) ...+55-51-31888995 / 0055-51-31888995 (051-31888995 / 0-51-31888995) +55-51-31888996 / 0055-51-31888996 (051-31888996 / 0-51-31888996) +55-51-31888997 / 0055-51-31888997 (051-31888997 / 0-51-31888997) +55-51-31888998 / 0055-51-31888998 (051-31888998 / 0-51-31888998) +55-51-31888999 / 0055-51-31888999 (051-31888999 / 0-51-31888999)