Telephone Exchange
Northwood Telephone Exchange

Fibre Enabled

BT Broadband Fibre to the Cabinet, Fibre to the Premises & Fibre on Demand services are available to customers connected to the Northwood exchange. Most customers can now upgrade from ADSL to fibre internet. BT Broadband is supplied via the Openreach Network. BT Broadband



Local Authority = London Borough of Hillingdon

UK area dialling code (STD code) for the Northwood exchange is 020

International dialling code for the Northwood exchange is +44 20 or 0044 20

The Northwood exchange is in the London group of exchanges.

178 telephone exchanges form this regional grouping.

Northwood

Exchange Address

Located at :-
British Telecom,
Telephone Exchange,
Dene Road,
HERTFORDSHIRE.
HA6 2AB

/// what3words geocode = Bliss Army Simple

Northwood -> London -> London

See Location Map Below

Exchange Location



View Larger Map   |   Get Directions

Openreach Identifer

  • Network identifier code for the Northwood exchange is LWNWOO

Fibre To The Cabinet

  • The Northwood exchange provides fibre services.

21CN WBC

  • This exchange is 21CN WBC enabled

ADSL Max

  • The Northwood exchange has been enabled for ADSL Max since March 2006

ADSL

  • The Northwood telephone exchange in London was enabled for ADSL in March 2000

Ofcom Classification

  • The BT exchange, Northwood is classified by Ofcom as:- Market 3.

Historic Fact

  • Before PhONE Day On 16th April 1995, the STD Code For This Exchange Was 0927 4
Virgin Media

PSTN Network Switch Off In 2027

Openreach and the wider UK telecoms industry are retiring the old Public Switched Telephone Network (PSTN) and associated copper-based services as part of the move to an all-digital, internet-protocol (IP) based network.

The PSTN and associated wholesale copper services - including traditional analogue phone lines, ISDN2, ISDN30 and other legacy products - are being withdrawn.

These services historically relied on copper wiring connected from exchanges to premises. They will be replaced with digital alternatives such as Full Fibre (FTTP) and IP-based broadband services like SOGEA, SOGFAST and other All-IP products.

Originally planned for December 2025, the final withdrawal of the PSTN network has been rescheduled to 31 January 2027 to give more time for migration, particularly for vulnerable customers and specialist services. By this date, all legacy services that depend on the PSTN must be transitioned off the copper network.

Openreach have not identified the Northwood Exchange as a 'FTTP Priority Exchange' and the 'Stop Sell' date was September 2023.

Stop Sell is triggered when a majority (75%) of premises connected to a particular exchange can get ultrafast Full Fibre. Customers who then want to switch, upgrade or re-grade their broadband or phone service will have to take a new digital service over their new Full Fibre network.