and "0181" repeated previously); and that incorrectly formatted caller ID data continues to be transmitted on some telephone networks even as of 2012. In addition, many users are unaware that there is any local dialling procedure, probably because of the increasing popularity of mobile phones, from which the full national number must always be dialled. Numerous examples of incorrectly formatted telephone numbers may still be seen in and around London, including signwriting on shop-fronts and commercial vehicles, and in newspaper advertisements. The incorrectly placed pauses are also heard in speech everywhere: in radio and television advertisements, and said by office workers misquoting their office numbers as "0207 xxx xxxx". While some clear publicity explaining the change was produced, BT's directory-assistance service quoted the codes incorrectly and, until November 2009, their online phonebook still incorrectly showed "0207" as "London Inner" and "0208" as "London Outer". A 2005 television advertisement for the mobile telephony provider O2 promoted a service that allows a user to select two area codes they can call for a reduced price; it also incorrectly showed 0207 and 0208 as different "area codes". Outside London, in the areas that had newly assigned 011x codes in the 1990s, many mistakenly believed that the added digit, to lengthen the subscriber number to seven digits, was part of their new area code largely because these places originally had traditional area codes (being non-Director areas) and, as a result, many misquoted their numbers in the 011xx xxxxxx format, rather than in the correct 011x xxx xxxx format. In Reading, the confusion was furthered by the fact that dual running of the original 01734 and new 0118 codes was possible during the migration period, so it was possible to continue dialling the number locally in the six-digit format until 1998, when seven-digit numbers became mandatory. Because of this, many mistook the added 9 as being part of the new area code, rather than the subscriber number. Following the migration, new numbers beginning with 3xx, 4xx, 91x and 90x began to be issued. Confusion is also caused by exchange automated changed number announcements where the voice synthesiser assumes that all area codes have four digits and places the spoken pause incorrectly. London numbers added subsequently From June 2005, new local numbers in London with an initial "3" like (020) 3222 1234 began to be allocated. Owing to the lingering confusion, people unaware of the correct