- London Euston ✓
- CMDNSTH ✓
- CMDNJN ✓
- Willesden Junction +1
- Wembley Central +1
- Harrow & Wealdstone +2
- Watford Junction +1
- Kings Langley +2
- Apsley +2
- Hemel Hempstead +2
- BONENDJ +3
- Berkhamsted +1
- Tring +1
- Cheddington +1
- LEDBRNJ ✓
- Leighton Buzzard +2
- Bletchley +4
- DNBGHSJ +3
- Milton Keynes Central +1
- Wolverton +1
- HANSLPJ +2
- Northampton ✓
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