Numbers on the Thames link trains: 1. Class 700 train: 027 (Same on the back of the train 1:43) 2. Class 700 train: 040 (same on the back of the train 4:17) 3. Class 700 train: 030 (Same on the back of the train 8:02) 4. Class 700 train: 052 (same on the back of the train I guess)
Numbers on the Southern trains: 1. Class 377 train: 608 (same on the back of the train 2:16) 2. 2 class 377 train: 623 + 705 (same on the back of the train 6:12) 3. 2 class 377 train: 402 + 120 (same on the back of the train 8:57)