National route: United Kingdom

Northern Ireland (Unitary Authority - dúiche)

• Newry & Mourne
• Banbridge
• Lisburn
• Belfast
• Newtownabbay
• Carrickfergus
• Larne

Scotland (Unitary Authority / Centair)

• South Ayrshir / Siorrachd Àir a Deas
• North Ayrshire / Siorrachd Àir an Ear
• East (North) Ayrshire / Siorrachd Àir a Tuath
• East Renfrewshire / Siorrachd Rinn Friù
• Glasgow / Glaschu
• North Lanarkshire / Siorrachd Lannraig a Tuath
• West Lothian / Lodainn an Iar
• Edinburgh / Dùn Eideann
• Midlothian / Meadhan Lodainn
• Scottish Borders / Na Crìochan
• Dumfries and Galloway / Dùn Phris is Gall-Ghaidhealaibh

England (Region - metropolitan county / non- / unitary authority: borough / district)

     North West England

• Cumbria: Carlisle - Eden - South Lakeland
• Lancashire: Lancaster - Wyre - Preston - South Ribble - Chorley
  
• Greater Manchester: Bolton - Salford 1 - Manchester - Salford 2 - Wigan
• Merseyside: St. Helens - Knowsley - Liverpool
• Halton (A, B)
  
• Cheshire West & Chester

Wales (Principal area / Awdurdodau unedol)

• Wrexham / Wrecsam
• (Shropshire - West Midlands)
• Powys

• Merthyr Tydfil / Merthyr Tudful

• Rhondda Cynon Taf
  

• Cardiff / Caerdydd

• Newport / Casnewydd

• Monmouthshire / Sir Fynwy

England (Region - metropolitan county / non- / unitary authority: Borough / district)

     South West England

• Gloucestershire - Forest of Dean
• South Gloucestershire
• Bristol
  
• South Gloucestershire
• Wiltshire
• Swindon

     South East England

• West Berkshire
• Reading
  
• Wokingham
• Windsor and Maidenhead
• Slough

     Greater London:

• Hillingdon - Hounslow - Hammersmith and Fulham
• Kensington and Chelsea - City of

  Westminster

• Camden - City of Westminster
• Lambeth - Southwark - City of London - Tower Hamlets - Lewisham - Greenwich
• Newham - Barking and Dagenham - Redbridge - Havering

     East of England

• Essex: Brentwood - Chelmsford - Braintree - Maldon - Colchester - Tendring