The first public automatic telephone exchange in the UK was at Epsom telephone exchange from 18 May 1912, and was introduced as standard across the UK's 6,700 telephone exchanges in 1922, lasting for around 70 years; it could handle up to 500 lines, and was the Strowger design and made by Automatic Telephone Manufacturing Company of Liverpool.[26] The world's first automatic telephone exchange had opened in La Porte, Indiana in November 1892.