Penn Line
Perryville-Baltimore Penn Station-Washington, DC
| Direction | Numbers | Odd/Even | Days of Operation |
|---|---|---|---|
| Inbound Baltimore Penn Station-Washington, DC | 401-445 | odd | Weekdays |
| Outbound Washington, DC-Baltimore Penn Station | 400-446 | even | Weekdays |
| Inbound Perryville-Baltimore Penn Station-Washington, DC | 503-535 | odd | Weekdays |
| Outbound Washington, DC-Baltimore Penn Station-Perryville | 506-544 | even | Weekdays |
Camden Line
Baltimore Camden Station-Washington, DC
| Direction | Numbers | Odd/Even | Days of Operation |
|---|---|---|---|
| Inbound Baltimore Camden Station-Washington, DC | 841-857 | odd | Weekdays |
| Outbound Washington, DC-Baltimore Camden Station | 840-856 | even | Weekdays |
Brunswick & Frederick Lines
Martinsburg, WV-Brunswick-Washington, DC
Frederick-Washington, DC
| Direction | Numbers | Odd/Even | Days of Operation |
|---|---|---|---|
| Inbound Martinsburg or Brunswick-Washington, DC | P870-P880 | even | Weekdays |
| Outbound Washington, DC-Brunswick or Martinsburg | P871-P883 | odd | Weekdays |
| Inbound Frederick-Washington, DC | P890-P894 | even | Weekdays |
| Outbound Washington, DC-Frederick | P891-P895 | odd | Weekdays |