History - Telephones UK
32 Country Code - Belgium Phone Dialling Code - How To Call Belgium From UK
How letters were used for digits in United Kingdom telephone exchange names and dialling codes up to the 1960's
Fictional phone numbers in For All Mankind – alexwlchan
Which telephone country code starts with +171, as in +171470---50? - Quora
UK Numbering
London to get new telephone 0204 area code to cope with demand | Metro News
Is it possible to get an area code from UK mobile number? - Quora
List of dialling codes in the United Kingdom - Wikipedia
Area Code Maps | Commission for Communications Regulation
London to get 10million new landline numbers with launch of new dialling code | London Evening Standard | Evening Standard
0204 Numbers – New London Area Code - Tamar Telecom
Ringflow: Unlocking the Mystery UK Phone Number Format Demystified | by Ringflow | Medium
What Do 0203 Phone Numbers Mean? | Londonist
Remember the London Code Changes on 6 May
07 numbers overview - Area-codes.org.uk
London calling: Ofcom to release new '(020) 4' phone numbers | Ofcom | Official Press Release
A brief history of Local Numbers in the UK
International Calling Codes: How to Dial to and from Europe & the US by Rick Steves
Dialling Code Booklets, your memories? - UK Vintage Radio Repair and Restoration Discussion Forum
London set to outgrow area code - again! - Boxx Communications Ltd
London set to outgrow area code - again! - Boxx Communications Ltd
Sri Lanka Dialing Code - Sri Lankan Country Code - Telephone Area Codes in Sri Lanka - YouTube
London gets 10 million more phone numbers with '0204' launch | TechRadar
Why UK area codes are numbered as they are : r/CasualUK
What Do 0203 Phone Numbers Mean? | Londonist
