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Bletchley Park

Bletchley Park played an important part in WWII. Nearly 10,000 people worked in the wider Bletchley Park organisation, breaking Nazi codes that helped to save lives and bring the war to end.

Bletchley Park | West Bletchley Council

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About Bletchley Park

Perhaps Bletchley Park's greatest success was the breaking of the Germans' strategic ciphers. Bletchley Park did not only attack high level machine cyphers, they also produced secure codes for the Allies. Diplomatic messages sent by both Allies and Enemies were also broken by GC&CS.

Contact Bletchley Park

Bletchley Park
The Mansion,
Bletchley Park
Sherwood Drive,
Milton Keynes,

T: +44 (0) 1908 640404


Codebreaking at Bletchley Park first took place in September 1938. Codebreaking by GC & CS at Bletchley Park began in earnest in September 1939. Despite ever increasing numbers of staff, work in the ‘Huts’ continued until 1942.

Bletchley Park was vital to Allied victory in World War Two. Codebreaking operations at Bletchley Park came to an end in 1946.

It is widely considered as the birthplace of modern computing.