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| Operator: | Thames Valley | Fleet No: | 556 |
| Chassis: | Bristol LL6B | Chassis No: | 81.121 |
| Body: | ECW B39R | Body No: | 4711 |
| Aug 50 | In service with Thames Valley Traction Company Limited, Reading (556) |
| Sep 60 | Out of service with Thames Valley Traction Company Limited, Reading (556) |
| Sep 60 | In service with United Welsh Services Limited, Swansea (556) |
| Sep 66 | Out of service with United Welsh Services Limited, Swansea (556) |
| Oct 66 | In service with Precelley Motors, Clynderwen |
| Sep 68 | Out of service with Precelley Motors, Clynderwen |
| Sep 68 | In service with A T Jones, Login |
| <May 78 | Out of service with A T Jones, Login |
| c. May 78 | Ward, Bishop Auckland |
| <Sep 82 | W Jones, Great Kingshill (dealer) |
| <Jan 83 | Jones & Winning, High Wycombe |
| Jul 83 | J A Belson, Partridge Green |
| Jan 91 | I Yates, Mansfield |
| <Jan 93 | Roger Pratt, Clifton-on-Teme |
| <Apr 97 | G B Tyler, Worcester |
| Sep 20 | Thames Valley & Great Western Omnibus Trust, Fifield |
Status: Preserved as Thames Valley 556
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Owner : United Welsh 556 Location : Victoria Gardens, Neath Date : Not Known
(C) Brian Botley |
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Owner : Jones Location : Login Date : October 1973
(C) Terry Walker |
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Owner : Jones Location : Login depot Date : 1976
(C) Keith Newton |
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Owner : Thames Valley 556 Location : Woburn Date : September 1984
(C) David Mant |
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Owner : Thames Valley 556 Location : Southsea Common Date : Not Known
(C) Terry Lawson |
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Owner : Thames Valley 556 Location : Reading Date : August 2015
(C) Ken Jones |
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Owner : Thames Valley 556 Location : Reading Date : June 2018
(C) Ken Jones |