United Kingdom country code, 44 phone code, +44 dialing code
100 UK Codes ideas | coding, uk area, area codes
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Telephone area codes: Find UK dialling codes for numbers starting 01 and 02 - Ofcom
Area codes locator - Area code lookup by number or city
100 UK Codes ideas | coding, uk area, area codes
100 UK Codes ideas | coding, uk area, area codes
Area Code Maps | Commission for Communications Regulation
Old telephone area codes with letters UK: direct dialling
Major change coming for people in 940 area code
The original 1947 Telephone Area Code Map - Codes were assigned based on population and time it took to dial the code on a rotary phone dial. High population areas got small
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File:Japan Kanto telephone code areas.svg - Wikimedia Commons
Response to Ofcom Numbering Plan Changes Consultation
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0131 View Map of the Area Code
01224 View Map of the Area Code
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Area codes locator - Area code lookup by number or city
Area codes 201 and 551 - Wikipedia
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020 View Map of the London Area Code
020 View Map of the London Area Code
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List of dialling codes in the United Kingdom - Wikipedia
020 - Wikipedia
