| 1 | 1-Northampton - Rectory Farm |
| 10 | 10-Northampton - Kettering |
| 11 | 11-Grange Park - Northampton |
| 11A | 11A-Grange Park - Northampton |
| 12 | 12-Northampton - Brackmills |
| 12A | 12A-Northampton - Northampton |
| 13 | 13-Northampton - Northampton |
| 131 | 131-Buckingham - Brackley |
| 131 | 131-Buckingham - Brackley |
| 132 | 132-Buckingham - Tingewick - Brackley (- Banbury) |
| 14 | 14-Northampton - Buckton Fields |
| 15 | 15-St Giles Park - Town Centre |
| 15 | 15-Kettering - Corby |
| 15A | 15A-St Giles Park - Town Centre |
| 16 | 16-Northampton - Ecton Brook |
| 17 | 17-Northampton - Brixworth |
| 17 | 17-Ise Lodge - Desborough |
| 18 | 18-UON Waterside Campus - Sixfields |
| 2 | 2-Northampton - Blackthorn |
| 200 | 200-Banbury - Daventry |
| 203 | 203-Princethorpe - Birdingbury - Leamington Hastings - Dunchurch - Rugby |
| 25 | 25-Bedford - Rushden |
| 25 | 25-Bedford - Rushden |
| 25 | 25-Bedford - Rushden |
| 276 | 276-Spinney Road - Latimer School |
| 3 | 3-Northampton - Camp Hill |
| 33 | 33-Milton Keynes - Northampton |
| 4 | 4-UON Waterside Campus - Sunnyside |
| 41 | 41-Bedford - Northampton |
| 41 | 41-Bedford - Northampton |
| 41 | 41-Bedford - Northampton |
| 48 | 48-Wellingborough - Kettering/Stamford Rd |
| 4A | 4A-UON Waterside Campus - Sunnyside |
| 4B | 4B-UON Waterside Campus - Sunnyside |
| 5 | 5-Town Centre - Southfields |
| 500 | 500-Banbury - Bicester |
| 51 | 51-Northampton - Brackmills |
| 53 | 53-Northampton - Brackmills |
| 54 | 54-Northampton - Moulton Park |
| 55 | 55-Northampton - Swan Valley |
| 55 | 55-Northampton - Swan Valley |
| 58 | 58-Northampton - Moulton Park |
| 58 | 58-Northampton - Moulton Park |
| 59 | 59-Market Harborough - Welford |
| 6 | 6-Parklands - Northampton |
| 6 | 6-Parklands - Northampton |
| 60 | 60-Northampton - Welford |
| 664 | 664-Daventry - Leamington |
| 7 | 7-Northampton - Moulton Park |
| 77 | 77-Northampton - Market Harborough |
| 7B | 7B-Northampton - Moulton Park |
| 8 | 8-Blackthorn - Kings Heath |
| 80 | 80-Akeley - Brackley |
| 82 | 82-Silverstone UTC - Moulton |
| 83 | 83-Silverstone UTC - Milton Keynes |
| 87 | 87-Towcester - Brackley |
| 87 | 87-Northampton - Towcester |
| 88 | 88-Northampton - Silverstone |
| 9 | 9-Northampton - Northampton |
| 94 | 94-M-F Raunds, Sat Rushden Lakes - Oundle |
| 96 | 96-Rugby - Northampton |
| 9A | 9A-Northampton - Northampton |
| 9B | 9B-Northampton General Hospital - Duston |
| 9C | 9C-Northampton - Duston |
| D1 | D1-Rugby - Daventry |
| D2 | D2-Northampton - Daventry |
| D3 | D3-Northampton - Daventry |
| D4 | D4-Daventry - Long Buckby |
| D5 | D5-Daventry - Daventry |
| D6 | D6-Daventry - Daventry |
| L1 | L1-Lilbourne - Rugby |
| L2 | L2-Stanford - Rugby |
| L3 | L3-Lilbourne - Rugby |
| VH1 | VH1-Wollaston - Bozeat - Cogenhoe - Northampton |
| X10 | X10-Northampton - Kettering |
| X33 | X33-Milton Keynes - Northampton |
| X4 | X4-Northampton - Corby |
| X4 | X4-Corby - Peterborough |
| X46 | X46-Northampton - Rushden |
| X47 | X47-Northampton - Raunds |
| X6 | X6-Milton Keynes - Northampton |
| X6 | X6-Aylesbury - Winslow - Buckingham - Milton Keynes |
| X7 | X7-Northampton - Market Harborough |
| X91 | X91-Silverstone - Milton Keynes |
