Other BT PLC sections

BT Archives

We conserve and make accessible BT's heritage, going all the way back to 1846. We document and preserve the story of the world's oldest communications company.

All the records we produced before privatisation in 1984 are public records. BT Archives has been appointed an "official place of deposit for public records" by the Lord Chancellor and approved by The National Archives National Advisory Services as meeting their standards for archives repositories.

We also act as the corporate memory for the BT Group, retaining vital historical information to benefit the company.

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

Unfortunately, our seating is limited so we can’t guarantee there will be space for you. To avoid disappointment, please email archives@bt.com in advance to book.

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

2017 Scheduled closures:

  • Monday 28 August (UK public holiday)
  • Monday 25 and Tuesday 26 December (Christmas Day and Boxing Day)



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