ISDN Switch Off Continues, as 117 exchanges stop offering landline and broadband services

9th April 2021
Reading time < 3 minutes

When we have mentioned the ISDN Switch Off of 2025, and the gradual “stop sell” between now and 2023, the general response is followed by an eye roll and tut. As if to say, “as if Openreach will hit target”.

Openreach confirms 117 Telephone Exchanges that will no longer be used for the provision of new telephone lines or new traditional broadband products introducing an ISDN Switch Off

The plans are well underway, as in June this year (yes, June 2021) Openreach have confirmed that 117 exchanges will have a “stop sell” on all legacy voice and data products that use a traditional phoneline (PSTN/ ISDN) this move comes after a successful stop sell trial in Salisbury.

From June the 29th 2021, all orders of non-Fibre to the Premises (FTTP) Broadband or SoGEA Broadband (Single Order Generic Ethernet Access) will be rejected (where one of these products are available).

The Details:
  • The “stop sell” will apply at both commercial and residential premises that have access to one of the FTTP or SoGEA broadband products
  • Where the afore mentions premises have access to FTTP/ SoGEA Broadband, stop the sale of all legacy products will apply to include PSTN/ ISDN Phone lines and traditional Broadband. This means that no new services will be offered in these areas. Furthermore, also included in this are; moving providers, adding broadband to existing phone lines, or modifications such as bandwidth to an existing service or restarting a stopped service.
  • When a premise has FTTP/ SoGEA available to order then only FTTP/SoGEA will be available for new supply. As this new wave of technology becomes available at additional premises post stop to sell, these premises will be added to the stop sell immediately.

If you are in any of these areas below or want to get ahead of the curve. Please feel free to get in touch and we can talk you through the implications and benefits of moving to fibre connectivity and a cloud voice telephone service. E:

ISDN Switch Off - Stop Sell – Affected Telephone Exchanges:
Exchange Name Exchange Location Exchange Name Exchange Location
Abbeyhill City of Edinburgh Great Crosby Sefton
Achnasheen Highland Harborne Birmingham
Allestree Park Derby Harehills Leeds
Altnaharra Highland Harewood End Herefordshire, County of
Arley Cheshire West and Chester Hatch End Three Rivers
Aultguish Highland Headingley Leeds
Be/Ballysillan Belfast Highbury Birmingham
Be/City Belfast Horsforth Leeds
Beacon Birmingham Hulme Hall Greater Manchester
Bearwood Birmingham Kentford Forest Heath
Belfast Balmoral Belfast Kenton Road Greater London
Belfast Cregagh Belfast Keresley Coventry
Belfast East Belfast Kilmarnock East Ayrshire
Belfast Fortwilliam Belfast Lanreath Cornwall
Belfast Knock Belfast Lempitlaw Scottish Borders
Belfast Malone Belfast Llandegla Denbighshire
Belfast North Belfast Mayals Swansea
Belfast Ormeau Belfast Merton Park Greater London
Belfast Stormont Belfast Mickle Trafford Cheshire West and Chester
Belsay Northumberland Morley Leeds
Birchfield Birmingham Otterham Station Cornwall
Bishopsworth Bristol, City of Padstow Cornwall
Bontddu Gwynedd Parbold West Lancashire
Bonvilston Vale of Glamorgan Pinhoe Exeter
Boreham Chelmsford Prestwich Greater Manchester
Boreland Dumfries and Galloway Radcliffe Greater Manchester
Bridgemere Cheshire East Radford Coventry
Burgh Heath Reigate and Banstead Ringford Dumfries and Galloway
Burleygate Herefordshire, County of Rock Ferry Wirral
Caergwrle Flintshire Rumford Cornwall
Canon Pyon Herefordshire, County of Salisbury Wiltshire
Cantley Doncaster Sefton Park Liverpool
Canworthy Water Cornwall Sheldon Birmingham
Carryduff  Northern Ireland Sherwood Nottingham
Catforth Preston Solihull Solihull
Childwall Liverpool South Bristol, City of
Chineham Basingstoke and Deane Southwick Dumfries and Galloway
Claughton Wirral Springfield Birmingham
Coads Green Cornwall St Buryan Cornwall
Corstorphine City of Edinburgh Stechford Birmingham
Cranfield Central Bedfordshire Stoneycroft Liverpool
Cressington Liverpool Streetly Birmingham
Crookham Northumberland Sully Vale of Glamorgan
Crosthwaite South Lakeland Sutton Chichester
Dagenham Greater London Swansea Swansea
Daviot Highland Swinton Greater Manchester
Deddington Cherwell Tarporley Cheshire West and Chester
Dundonald Belfast Tile Hill Coventry
Earlsdon Coventry Toothill Swindon
East Marden Chichester Trentside Rushcliffe
Eccles Greater Manchester Tresillian Cornwall
Ewell Epsom and Ewell Tudweiliog Gwynedd
Failsworth Greater Manchester Walkden Greater Manchester
Flockton Kirklees Wallasey Wirral
Gants Hill Greater London Westbury-On-Trym Bristol, City of
Gateacre Liverpool Wettenhall Cheshire East
Gedling Gedling Whitchurch Cardiff
Gosforth Newcastle upon Tyne Whiteabbey Antrim and Newtownabbey
Great Bernera Eilean Siar Whitefield Greater Manchester

Further Reading

ISDN & PSTN Switch off - DB Group - Business Utilities Simplified (

ISDN Switch Off - Updated News | BTT Comms Ltd.