TfL still uses UTS in modified form and hugely reduced quantities, as detailed in Wikipedia.
Bank 35 - UTS London Underground ticket - London EC4N
Charing Cross 01 - UTS London Underground ticket - London WC2N - main office
Bond Street 01 - UTS London Underground platform ticket - London
Canons Park 01 - UTS London Underground ticket - Jubilee Line
Clapham North 01 - UTS London Underground ticket - London SW4
Chalk Farm 01 - UTS London Underground platform ticket - London NW3
