What are 020 Numbers and Are these Numbers Free?
https://blog.talkhome.co.uk/technology/020-numbers/
WEBAug 9, 2023 · So, What are 020 Numbers? Telephone numbers that start with the 020 area code include 0203, 0204, 0207, and 0208. These numbers are area codes for London and the surrounding area. Officially, there are no differences between the London telephone numbers that start with 0207, and those with 0203, 0204, or 0208.
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