43 number 125 leads at unidentified HST east from Penzance to Paddington 1A83

According to Realtime Trains the route and timings were;

Penzance [PNZ] 1..................0947......................0947...........................RT

Camborne [CBN]..................1007/1009 1/2......1007/1011......................1L

Truro [TRU] 3.........................1027/1029............1029/1031...................2L

Par [PAR] 2.............................1052/1053 1/2......1055/1059..................5L

Lostwithiel [LOS] 1................1059.......................1104..............................5L

Bodmin Parkway [BOD]......1103/1105..............1108/1110......................5L

Liskeard [LSK] 2....................1116/1118.................1123/1126 1/4..............8L

Menheniot [MEN] 2..............1122........................1129 3/4.......................7L

St Germans [SGM] 2............1128/1129 1/2........1135 3/4/1137 1/4........7L

Saltash [STS] 2......................1136........................1142 3/4.......................6L

St Budeaux Ferry Road 2...1139 1/2.................1146 1/2........................7L

St Budeaux Junction...........1140........................1147..............................7L

Keyham [KEY] 2....................1141.........................1147 3/4.......................7L

Dockyard [DOC]...................1141 1/2...................1149 1/4........................7L

Devonport [DPT] 2...............1142 1/2.................1149..............................6L

Plymouth [PLY] 4..................1144 1/2/1147 1/2..1151 1/2/1155 1/2.........8L

Lipson Junction....................1150 1/2.................1158 3/4.......................8L

Laira Junction........................1151.........................1159 1/2........................8L

Tavistock Junction...............1152........................1200 1/4......................8L

Hemerdon..............................1155 1/2.................1203 1/2.......................8L

Ivybridge [IVY] 2...................1200 1/2................1208 1/2......................8L

Aish Emergency Xover.......1204 1/2................1212 1/2........................8L

Totnes [TOT] 2......................1213/1215..............1220 3/4/1223 1/4.....8L

Dainton Tunnel.....................1221 1/2.................1229 3/4......................8L

Newton Abbot West Jn.......1225.......................1233 3/4......................8L

Newton Abbot [NTA] 3........1226/1228............1234 1/2/1236 3/4.....8L

Teignmouth [TGM] 2...........1233.......................1242 1/4.......................9L

Dawlish [DWL] 2....................1236.......................1245 1/4.......................9L

Dawlish Warren UT..............1237 1/2.................1246 1/2.......................9L

Starcross [SCS] 2..................1239 1/2................1248 3/4......................9L

Exeter St Thomas 2.............1246.......................1253 3/4......................7L

Exeter St Davids 5................1247 1/2/1250......1255 1/2/1259 1/4......9L

Cowley Bridge Junction.....1252 1/2................1302.............................9L

Stoke Canon Lc....................1254.......................1303 1/2.......................9L

Hele & Bradninch Lc............1257.......................1306 1/2.......................9L

Tiverton Loop........................1301 1/2.................1310 3/4.......................9L

Tiverton Parkway 2..............1302 1/2................1312..............................9L

Whiteball.................................1304 1/2................1314 1/2......................10L

Wellington Somerset X.......1307.......................1316 1/4........................9L

Norton Fitzwarren................1311 1/2...................1320.............................8L

Taunton [TAU] 5...................1313 1/2/1315 1/2..1322 1/4/1324 1/2......9L

Cogload Junction.................1320.......................1328 3/4......................8L

Athelney Crossing...............1322.......................1331 1/4........................9L

SomertonGroundFrame.....1327 1/2.................1336 1/2.......................9L

Castle Cary [CLC] 1...............1334.......................1343 3/4......................9L

Bruton [BRU] 1.......................1337.......................1346.............................9L

East Somerset Junction......1340.......................1349 1/2.......................9L

Blatchbridge Junction.........1342 1/2................1352.............................9L

Clink Road Junction............1343 1/2.................1353.............................9L

Fairwood Junction...............1346 1/2................1356 1/4.......................9L

Westbury [WSB] 3................1350/1358............1358 3/4/1401 1/2......3L

Heywood Road Junction....1400 1/2................1404.............................3L

Lavington................................1405.......................1413 1/2........................8L

Woodborough.......................1410 1/2.................1428 1/4.....................17L

Pewsey [PEW] 2....................1413........................1430 3/4....................18L

Savernake..............................1416 1/2.................1434 3/4....................18L

Bedwyn [BDW] 2...................1419........................1439 1/4....................20L

Hungerford [HGD] 1.............1422 1/2................1442 1/2....................20L

Kintbury [KIT] 2......................1424 1/2................1444 1/2.....................19L

Newbury [NBY] T..................1428 1/2................1448...........................19L

Southcote Junction.............1439 1/2................1458...........................18L

Oxford Road Junction.........1441........................1500...........................19L

Reading [RDG] 11...................1445/1451..............1502/1505 1/4..........14L

Kennet Bridge Junction......1453.......................1507 1/4.....................14L

Twyford [TWY] 4...................1456 1/2................1511 1/2.......................15L

Maidenhead [MAI] 4............1502.......................1516 1/2......................14L

Slough [SLO] 5......................1509 1/2................1520 1/2.....................11L

Stockley Junction.................1515........................1526............................11L

Heathrow Airport Jn............1515 1/2.................1526 1/2.....................11L

Hayes & Harlington 2..........1515 1/2.................1526 3/4.....................11L

Southall West Junction.......1516........................1527 1/4......................11L

Southall [STL] 2.....................1516 1/2.................1528............................11L

Southall East Junction........1516 1/2.................1528............................11L

Hanwell Bridge Loop..........1517........................1528............................11L

Hanwell [HAN] 1....................1517 1/2..................1528 1/2......................11L

Acton West............................1518 1/2.................1529...........................10L

Acton Main Line [AML] 2....1519 1/2.................1530 1/4......................11L

Friars Junction......................1520.......................1530 3/4....................10L

Old Oak Common West......1520 1/2................1531............................10L

Old Oak Common East.......1521........................1531 1/2......................10L

Ladbroke Grove 3................1522.......................1532 1/2.....................10L

London Paddington 9.........1526 1/2................1536.............................9L

 

Done