format are beginning to assume erroneously that there is now a new London code, "0203". Even some local and national newspapers have given this misinformation. Some people report mis-dialling of London 3xxx xxxx numbers, where callers are dialling 0207 in front of the local number part instead of just 020. This call connects to (020) 73xx xxxx (ignoring the final digit) instead of to the expected number. The digit 3 was chosen to minimise nuisance calls: on seeing an unfamiliar '020x' code, some callers would assume that it was an old pre-PhONEday code and would mistakenly 'correct' it to 0120x. 01203 and 01201 are the only 0120x codes that are not valid, the old Coventry code 01203 having been changed to 024. The geographical significance of the "7" or "8" has been lost with regard to new number issuance so that, for example, some newly allocated numbers in central London now begin with "8". In 2019, numbers in the range (020) 4xxx xxxx started to be issued. Other numbers Although the problem is most prevalent in London, similar misconceptions also affect other area codes which were created as a result of PhONEday and the Big Number Change. The inconvenience of the possible misconceptions subsequently became more significant and apparent, for example in Bristol with the issuing of new numbers within the 0117 code area where initially all numbers were revised such that their local 7-digit string began with 9. From 1997 new numbers began to be issued whose local 7-digit string began with a number other than 9, starting with 3xx-xxxx: 1997 Local numbers beginning with 3 introduced 2007 Local numbers beginning with 2 introduced 2012 Local numbers beginning with 4 introduced International notation of UK numbers The United Kingdom adopts an open dialling plan for area codes within its public switched telephone network. Therefore, all area codes have a preceding "0" when dialling from within the United Kingdom. When dialling a UK number from abroad, the zero must be omitted. Because of this, it has become common (but incorrect) practice to write telephone numbers used both nationally and internationally with the 0 in parentheses, for example: +44 (0)20 7946 0234; if the number is dialled with the parenthesised zero, the call will fail. ITU-T Recommendation E.123 states that parentheses should not be used in the international notation, the correct format being +44 20 7946 0234; the in-country form would