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Fictitious numbers in (011x) and (01x1) area codes mostly end with the digits 496 0xxx, however Tyneside uses (0191) 498 0xxx. London uses 020 7946 0xxx; Cardiff uses 029 2018 0xxx; and Northern Ireland now uses 028 9649 6xxx after a previously reserved range was allocated for actual use.
Caller ID spoofing is a spoofing attack which causes the telephone network's Caller ID to indicate to the receiver of a call that the originator of the call is a station other than the true originating station. This can lead to a display showing a phone number different from that of the telephone from which the call was placed.
Non-geographic telephone numbers in the United Kingdom; Telecommunications in the United Kingdom; Telephone number portability; Telephone numbers in Ireland; UK telephone code misconceptions—includes the common "0207" and "0208" misconceptions; Calling party pays; Notes
• Fake email addresses - Malicious actors sometimes send from email addresses made to look like an official email address but in fact is missing a letter(s), misspelled, replaces a letter with a lookalike number (e.g. “O” and “0”), or originates from free email services that would not be used for official communications.
The High Court was said to have been told that "notebooks belonging to a private investigator hired by News Group Newspapers contained thousands of mobile phone numbers" and "police also found 149 individual personal identification numbers and almost 400 unique voicemail numbers which can be used to access voice mail".
Numbers starting with 0900, 0901 and 0906 are premium rate numbers. 0900 – Business & Marketing; 0901 – Entertainment; 0906 – Erotic services; Dialers (computer programs) are banned from these lines. See also Bundesamt für Kommunikation. Ukraine. Numbers starting with 0703 and 0900 are premium rate numbers. United Kingdom
Placeholder telephone numbers are often allocated from ranges such as 555 (where +1-[area code]-555-1212 is reserved in North America for directory assistance applications) to avoid generating misdialled calls to working numbers. In the United Kingdom, Ofcom has set aside a range of numbers in larger geographic area codes, as well as fictional ...
555 (telephone number) The telephone number prefix 555 is a central office code in the North American Numbering Plan, used as the leading part of a group of 10,000 telephone numbers, 555-XXXX, in each numbering plan area (NPA) (area code). It has traditionally been used only for the provision of directory assistance, when dialing NPA-555-1212.
The use of # as an abbreviation for "number" is common in informal writing, but use in print is rare. [44] Where Americans might write "Symphony #5", British and Irish people usually write "Symphony No. 5". [citation needed] When # is after a number, it is read as "pound" or "pounds", meaning the unit of weight.
United Kingdom An emergency phone on the Welsh coast at Trefor featuring 999. (Note the keypad missing digits 4 - 0, with no instruction on how to dial 999 from this phone.) 999 is the official emergency number for the United Kingdom, but calls are also accepted on the European Union emergency number, 112.