Niteroi Area Codes, Brazil |
| Country | Town/City | Area Code |
| Brazil | Niteroi | +55 21 |
Area Codes of Brazil Cities
- Area Code of Alagoinhas
- Area Code of Alexandria
- Area Code of Anápolis
- Area Code of Aracaju
- Area Code of Araguaina
- Area Code of Barreiras
- Area Code of Bauru
- Area Code of Belém
- Area Code of Belo Horizonte
- Area Code of Blumenau
- Area Code of Boa Vista
- Area Code of Brasilia
- Area Code of Campina Grande
- Area Code of Campinas
- Area Code of Campo Grande
- Area Code of Campos
- Area Code of Caruaru
- Area Code of Caxias do Sul
- Area Code of Cuiaba
- Area Code of Curitiba
- Area Code of Feira de Santana
- Area Code of Fernando de Noronha
- Area Code of Florianopolis
- Area Code of Fortaleza
- Area Code of Garanhuns
- Area Code of Goiania
- Area Code of Governador Valadares
- Area Code of Ilheus
- Area Code of Itabuna
- Area Code of Jequie
- Area Code of Joao Pessoa
- Area Code of Joinville
- Area Code of Juazeiro do Norte
- Area Code of Juiz de Fora
- Area Code of Londrina
- Area Code of Macapa
- Area Code of Maceio
- Area Code of Manaus
- Area Code of Medina
- Area Code of Montes Claros
- Area Code of Montezuma
- Area Code of Mossoro
- Area Code of Natal
- Area Code of Niteroi
- Area Code of Palmas
- Area Code of Panama
- Area Code of Parnaiba
- Area Code of Passo Fundo
- Area Code of Pelotas
- Area Code of Ponta Grossa
- Area Code of Porto Alegre
- Area Code of Porto Velho
- Area Code of Recife
- Area Code of Ribeirão Preto
- Area Code of Rio Branco
- Area Code of Rio de Janeiro
- Area Code of Rio Grande
- Area Code of Sacramento
- Area Code of Salinas
- Area Code of Salvador