what do mobile numbers start with in the uk
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title: Telephone numbers in the United Kingdom text: Telephone numbers in the United Kingdom Telephone numbers in the United Kingdom are administered by the UK government's Office of Communications (Ofcom). For this purpose Ofcom established a telephone numbering plan, known as the "National Telephone Numbering Plan", which is the system for assigning telephone numbers to subscriber stations. The numbers are of variable length. Local numbers are supported from land-lines, or numbers can be dialled with a '0'-lead prefix that denotes either a geographical region or another service. Cell phone numbers have their own prefixes which are not geographical and are completely portable between providers. Since 28 April 2001, title: Toll-free telephone number text: the rest. In the United Kingdom, toll-free telephone numbers are generally known as "freephone" numbers (British Telecom numbers are officially "Freefone") and begin with the prefixes 0800, 0808 or the Cable & Wireless "Freecall" prefix 0500. The most commonly used prefix is 0800, first used in November 1985. Additionally, numbers in the range 0808 80x xxxx are reserved for not-for-profit helplines. Since 1 July 2015, all 0800 and 0808 numbers have been free to call from landlines and mobile phones alike. Most mobile phone operators had charged for such calls previously, with Orange being the final major network to introduce title: Telephone numbers in the United Kingdom text: were introduced on 80X1 codes. Some mobile operators allocate other services to 123—such as customer services or voicemail etc. Short codes beginning with 1 are reserved for telecom service providers' own functionality; some of the most well-known are codes for use with Caller Display: Many fixed line telephone subscribers, e.g. of BT, Virgin Media, SkyTalk, TalkTalk, and PlusNet, have the opportunity to use an automated messaging service which takes messages when the called number is either engaged ("busy") or not answered within a given time. This can be accessed by calling 1571. For fixed line users, it is possible to title: Telephone numbers in the United Kingdom text: allocated different ranges within the 073xx, 074xx, 075xx, 07624, 077xx, 078xx and 079xx area codes. Changes to mobile phone numbers in the Big Number Change were mostly straight replacements, such as Vodafone customers on the 0378 block became 07778. Since the advent of Mobile number portability, mobile phone number prefixes can no longer be relied on to determine the current operator of a particular mobile phone – only the original operator. 070 and 076 numbers are often charged at a much higher rate than calling the similar-looking 07xxx mobile telephone numbers. Personal numbers beginning 070 are regulated by Phone-paid Services title: Telecommunications in the United Kingdom text: In addition, companies such as Virgin Mobile UK and Tesco Mobile act as mobile virtual network operators, using the infrastructure of other companies. There is a set numbering plan for phone numbers within the United Kingdom, which is regulated by the Office of Communications (Ofcom), which replaced the Office of Telecommunications (Oftel) in 2003. Each number consists of an area code—one for each of the large towns and cities and their surroundings—and a subscriber number—the individual number. Mobile IMSI is the actual number assigned to it the mobile telephone number, and provided with individual license to the MNOs. In 1998