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"Regular Expressions for Validating and Formatting GB Telephone Numbers". aa-asterisk.org.uk. Archived from the original on 6 April 2014 – patterns for checking which area codes and prefixes are valid and patterns for formatting each number type, archived in 2014 "The first 25 years of UK STD code changes summarised" (PDF). Sam Hallas.
In the United Kingdom, telephone numbers are administered by the 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. Telephone numbers are of variable length.
1-5-7-1. Police 101. 105 (telephone number) 119 (COVID-19 testing) 0800 Reverse.
In order to free up space for mobile, non-geographic, premium rate and pager services, 16 of the original STD codes with low number use were merged into 14 existing ranges so that each area code would cover multiple charge groups (these migration figures do not include the similar 091 area code changes).
There are now over 660 levels assigned under the 0161 code (second only in the UK to the number assigned under the 020 code for London), although this includes numbers set aside as "Free for National Dialling Only" (for example: 0161 002 xxxx). With more than 200 telecoms operators (the most prolific still being BT,) the 0161 code area also has ...
Before the UK Calling changes, calls to ‘Freephone’ numbers were generally free when called from a landline, however mobile users were usually charged for calling them. The 1 July legislation made all calls to 0800 and 0808 numbers free for consumers to dial from mobile phones, just as they are from landlines. [7]
List of Scam Area Codes. More than 300 area codes exist in the United States alone which is a target-rich environment for phone scammers. The good news is that scam callers will often show up ...
Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.