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

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 NameExchange LocationExchange NameExchange Location
AbbeyhillCity of EdinburghGreat CrosbySefton
Allestree ParkDerbyHarehillsLeeds
AltnaharraHighlandHarewood EndHerefordshire, County of
ArleyCheshire West and ChesterHatch EndThree Rivers
BeaconBirminghamHulme HallGreater Manchester
BearwoodBirminghamKentfordForest Heath
Belfast BalmoralBelfastKenton RoadGreater London
Belfast CregaghBelfastKeresleyCoventry
Belfast EastBelfastKilmarnockEast Ayrshire
Belfast FortwilliamBelfastLanreathCornwall
Belfast KnockBelfastLempitlawScottish Borders
Belfast MaloneBelfastLlandeglaDenbighshire
Belfast NorthBelfastMayalsSwansea
Belfast OrmeauBelfastMerton ParkGreater London
Belfast StormontBelfastMickle TraffordCheshire West and Chester
BirchfieldBirminghamOtterham StationCornwall
BishopsworthBristol, City ofPadstowCornwall
BontdduGwyneddParboldWest Lancashire
BonvilstonVale of GlamorganPinhoeExeter
BorehamChelmsfordPrestwichGreater Manchester
BorelandDumfries and GallowayRadcliffeGreater Manchester
BridgemereCheshire EastRadfordCoventry
Burgh HeathReigate and BansteadRingfordDumfries and Galloway
BurleygateHerefordshire, County ofRock FerryWirral
Canon PyonHerefordshire, County ofSalisburyWiltshire
CantleyDoncasterSefton ParkLiverpool
Canworthy WaterCornwallSheldonBirmingham
Carryduff Northern IrelandSherwoodNottingham
ChildwallLiverpoolSouthBristol, City of
ChinehamBasingstoke and DeaneSouthwickDumfries and Galloway
Coads GreenCornwallSt BuryanCornwall
CorstorphineCity of EdinburghStechfordBirmingham
CranfieldCentral BedfordshireStoneycroftLiverpool
CrookhamNorthumberlandSullyVale of Glamorgan
CrosthwaiteSouth LakelandSuttonChichester
DagenhamGreater LondonSwanseaSwansea
DaviotHighlandSwintonGreater Manchester
DeddingtonCherwellTarporleyCheshire West and Chester
DundonaldBelfastTile HillCoventry
East MardenChichesterTrentsideRushcliffe
EcclesGreater ManchesterTresillianCornwall
EwellEpsom and EwellTudweiliogGwynedd
FailsworthGreater ManchesterWalkdenGreater Manchester
Gants HillGreater LondonWestbury-On-TrymBristol, City of
GateacreLiverpoolWettenhallCheshire East
GosforthNewcastle upon TyneWhiteabbeyAntrim and Newtownabbey
Great BerneraEilean SiarWhitefieldGreater Manchester

Further Reading

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

ISDN Switch Off – Updated News | BTT Comms Ltd.