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BT Archives

We preserve and give access to BT's heritage, dating back to 1846. The story of the world's oldest communications company, dating back to the dawn of telecommunications technology. Over 170 years of using the power of communications to make a better world.

BT Archives has been accredited by The National Archives as meeting national archives standards, and our collections are acknowledged by UNESCO and Arts Council England as being internationally significant and an important part of the UK’s cultural and scientific heritage.

Visiting us

BT Archives has been in a purpose-built repository in Holborn Telephone Exchange since July 1997.

Opening days

Our public search room is open on Mondays and Tuesdays, 10.00am - 4.00pm (except for public holidays and at other times listed on this page). Visits are by appointment only and can be arranged by emailing archives@bt.com.

If you haven’t visited before, please bring photographic identification, such as a passport or driving licence, and separate proof of address.

Note that we can’t do any research on your behalf.

2018/19 Scheduled closures:

  • Monday 24th December (Christmas Eve)
  • Tuesday 25th December (Christmas Day)
  • Wednesday 26th December (Boxing Day)
  • Monday 31st December (New Year's Eve)
  • Tuesday 1st January 2019 (New Year's Day)
  • 21st and 22nd January (collections stock-take)



Location map


BT Archives
Third Floor
Holborn Telephone Exchange
268-270 High Holborn

Telephone: (+44) 020 7440 4220
Fax: (+44) 020 7242 1967
Email: archives@bt.com

Getting here

British Rail: City Thameslink (Holborn Viaduct entrance)

Underground: Holborn (Piccadilly and Central Lines), Chancery Lane(Central line) or Farringdon (Circle or District Lines)

Bus routes: (High Holborn) 8, 242, 25, 501, 521 (Holborn Kingsway) 1, 68, 91, 168, 171, 188, 501, 505, 521, X68

By car: NCP Car Parks at: Holborn, Museum St WC1; Brunswick Square WC1; Russell Court, Woburn Place WC1; Caxton House, Cowcross St, EC1; Cardinal House, Cowcross St, EC1; Bloomsbury Square Car Park, WC1