New London-Old Saybrook-New Haven-Stamford
| Direction | Numbers | Odd/Even | Days of Operation |
|---|---|---|---|
| Westbound New London or Old Saybrook-New Haven or Stamford | 1621-1693 | odd | Weekdays |
| Eastbound Stamford or New Haven-Old Saybrook or New London | 1606-1682 | even | Weekdays |
| Westbound New London or Old Saybrook-New Haven | 3613-3673 | odd | Weekends |
| Eastbound New Haven-Old Saybrook or New London | 3604-3658 | even | Weekends |
New Haven-Hartford-Springfield
| Direction | Numbers | Odd/Even | Days of Operation |
|---|---|---|---|
| Southbound Springfield or Hartford-New Haven | 4401-4467 | odd | Weekdays |
| Northbound New Haven-Hartford or Springfield | 4400-4466 | even | Weekdays |
| Southbound Springfield or Hartford-New Haven | 6401-6461 | odd | Weekends |
| Northbound New Haven-Hartford or Springfield | 6400-6458 | even | Weekends |