---
title: "Changes to Look up a carrier by DOT number"
method: GET
path: "/v1/carriers/{dot_number}"
---

# Changes to Look up a carrier by DOT number

`GET /v1/carriers/{dot_number}`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 1 of 3 revisions.

- **2026-08-18** `ae58c064a7af` — 35 breaking, 20 warning, 48 info

## Changes

- **2026-08-18** `ae58c064a7af` — 35 breaking, 20 warning, 48 info
  - the response property `authority_based_carrier_type` became nullable for the status `200`
  - the response property `authority_types` became nullable for the status `200`
  - the response property `avg_truck_age_years` became nullable for the status `200`
  - the response property `cargo` became nullable for the status `200`
  - the response property `carrier_operation` became nullable for the status `200`
  - the response property `carrier_type` became nullable for the status `200`
  - the response property `company_officers` became nullable for the status `200`
  - the response property `date_added` became nullable for the status `200`
  - the response property `day_cabs` became nullable for the status `200`
  - the response property `drivers` became nullable for the status `200`
  - the response property `fleet_composition` became nullable for the status `200`
  - the response property `growth` became nullable for the status `200`
  - the response property `latitude` became nullable for the status `200`
  - the response property `legal_name` became nullable for the status `200`
  - the response property `longitude` became nullable for the status `200`
  - the response property `operating_authority_status` became nullable for the status `200`
  - the response property `phone` became nullable for the status `200`
  - the response property `physical_address` became nullable for the status `200`
  - the response property `physical_address/city` became nullable for the status `200`
  - the response property `physical_address/state` became nullable for the status `200`
  - the response property `physical_address/street` became nullable for the status `200`
  - the response property `physical_address/zip` became nullable for the status `200`
  - the response property `power_units` became nullable for the status `200`
  - the response property `safety_rating` became nullable for the status `200`
  - the response property `services` became nullable for the status `200`
  - the response property `sleeper_cabs` became nullable for the status `200`
  - the response property `technology` became nullable for the status `200`
  - the response property `technology/fuel_card` became nullable for the status `200`
  - the response property `technology/tms` became nullable for the status `200`
  - the response property `timezone` became nullable for the status `200`
  - the `carrier_type` response's property type/format changed from `string`/`` to `array, null`/`` for status `200`
  - the `company_officers/items/` response's property type/format changed from `object`/`` to `string`/`` for status `200`
  - the `date_added` response's property type/format changed from `string`/`date` to `string, null`/`` for status `200`
  - the `technology/fuel_card` response's property type/format changed from `string`/`` to `array, null`/`` for status `200`
  - the `technology/tms` response's property type/format changed from `string`/`` to `array, null`/`` for status `200`
  - removed the optional property `accidents_by_year` from the response with the `200` status
  - removed the optional property `company_officers/items/email` from the response with the `200` status
  - removed the optional property `company_officers/items/name` from the response with the `200` status
  - removed the optional property `company_officers/items/title` from the response with the `200` status
  - removed the optional property `driver_oos_last_year` from the response with the `200` status
  - …63 more

---

[Operation](https://skmtc.dev/runalphaloops/apis/alphaloops-fmcsa-carrier-data-api/docs/v1/carriers/:dot_number/get.md) · [API](https://skmtc.dev/runalphaloops/apis/alphaloops-fmcsa-carrier-data-api.md) · [Page](https://skmtc.dev/runalphaloops/apis/alphaloops-fmcsa-carrier-data-api/changes/v1/carriers/:dot_number/get)