> ## Documentation Index
> Fetch the complete documentation index at: https://docs.alvys.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Trailer column (Trips table)

> What the Trailer column in the Dispatch Planner v2 Trips table shows, how a carrier's external trailer is marked, and how trailer numbers sort and filter.

Part of the [Dispatch Planner column reference](/en/help/loads-trips/dispatch-planner-columns).

The **Trailer** column shows the number of the trailer assigned to each trip. Use it to check whose equipment is under a load, or to find a trailer's trips by typing its number.

## At a glance

| | |
| - | - |
| **Table** | Trips |
| **Shown by default** | Yes |
| **Sort** | Yes |
| **Filter** | Type text to match |
| **Who sees it** | Everyone who can open Dispatch Planner v2 |
| **Edit in the grid** | No. The column changes when you assign or unassign the trailer on the trip. |

## What does the column show?

The cell shows the trailer number. A trip with no trailer assigned shows a dash.

**A trailer that is not in your fleet is marked Ext.** When a trip carries a carrier's trailer rather than one of your own, a blue **Ext** badge appears after the number. Hover over the badge to see **Trailer is not in your fleet**. Your own trailers show the number with no badge. If the External marking is not turned on for your account, the cell shows only the number. To learn how an external trailer is recorded on a trip, see [How to add a trailer](/en/help/assets-fleet/how-to-add-a-trailer).

## How do sorting and filtering work?

**Filtering matches part of the trailer number.** Type in the **Trailer ID** box. The table keeps trips whose trailer number contains what you typed, in upper or lower case.

**Trailer numbers sort as text.** Numbers are compared character by character, so trailer **1000** comes before trailer **200**. Trips with no trailer always sort to the end.

## Related

* [Trailer Fleet column](/en/help/loads-trips/dispatch-planner-columns/trips/trailer-fleet)
* [Truck column](/en/help/loads-trips/dispatch-planner-columns/trips/truck)
* [Driver(s) column](/en/help/loads-trips/dispatch-planner-columns/trips/drivers)
* [Trailer column (Drivers/Assets table)](/en/help/loads-trips/dispatch-planner-columns/drivers/trailer)
* [Dispatch Planner](/en/help/loads-trips/dispatch-planner)
* [How to add a trailer](/en/help/assets-fleet/how-to-add-a-trailer)