Area code 51
Rio Grande do Sul · Porto Alegre
- Area code
- 51
- Country
- Brazil
- Region
- Rio Grande do Sul
- Major cities
- Porto Alegre
- Time zone
- America/Sao_Paulo
- Note
- Porto Alegre area code.
This is a domestic area code inside Brazil. It is not the international calling code.
Frequently asked questions
Which cities use area code 51?
Area code 51 serves Rio Grande do Sul in Brazil, including Porto Alegre.
What region does area code 51 cover?
Area code 51 covers Rio Grande do Sul. Area codes route calls to a specific city or region within a country's national telephone network.
What is the difference between an area code and a calling code?
A calling code routes a call across borders to a national network, while an area code routes it to a city or region inside that network. For a Brazil number, the country calling code is the international prefix and 51 is the domestic area code.
What time zone is area code 51 in?
Area code 51 is in the IANA time zone America/Sao_Paulo.
Is area code 51 the international calling code?
No. 51 is a domestic area code inside Brazil, not the international calling code. To call this region from abroad, you dial the country's calling code first, then 51 and the local number.