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Dialing from Rio de Janeiro to London

Result, dial: 0021 44 1604737100

(If you are behind a switchboard you may have to dial '0' or '9' (or another number) to get an external line.)

How the number is composed

NumberComments
00210021 is the international prefix used to dial somewhere outside of Brazil.
4444 is the international code used to dial to United Kingdom.
20 is the local area or city code used to dial to London. (Not added because the number entered already seems to include an area code.)
16047371001604737100 is the local number you wrote.

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Local time comparison

LocationLocal Time
Rio de Janeiro (Brazil – Rio de Janeiro)Monday, May 12, 2025 at 7:02:54 pm
London (United Kingdom – England)Monday, May 12, 2025 at 11:02:54 pm

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