FMCSA Carrier Lookup

GET/v1/aviation/fmcsa/carrier/{dotNumber}$0.01 per call

Look up a motor carrier by USDOT number.

Parameters

Name	In	Type	Description
dotNumberrequired	path	string

Response fields

Field	Type	Description
success	boolean	e.g. `true`
dotNumber	string	e.g. `80806`
found	boolean	e.g. `true`
carrier	object
carrier.dotNumber	string	e.g. `80806`
carrier.legalName	string	e.g. `J B HUNT TRANSPORT INC`
carrier.dbaName	string	e.g. `J B HUNT`
carrier.carrierOperation	string	e.g. `Interstate`
carrier.hmFlag	boolean	e.g. `true`
carrier.pcFlag	boolean	e.g. `false`
carrier.phyStreet	string	e.g. `615 J B HUNT CORPORATE DRIVE`
carrier.phyCity	string	e.g. `LOWELL`
carrier.phyState	string	e.g. `AR`
carrier.phyZip	string	e.g. `72745`
carrier.phyCountry	string	e.g. `US`
carrier.mailingStreet	string	e.g. `615 J B HUNT CORPORATE DRIVE`
carrier.mailingCity	string	e.g. `LOWELL`
carrier.mailingState	string	e.g. `AR`
carrier.mailingZip	string	e.g. `72745`
carrier.telephone	string	e.g. `4798200000`
carrier.totalDrivers	number	e.g. `24116`
carrier.totalPowerUnits	number	e.g. `25280`
carrier.safetyRating	string	e.g. `S`
carrier.safetyRatingDate	string	e.g. `19920508`
carrier.oosDate	string	e.g.
carrier.oosReason	string	e.g.
dataSource	object
dataSource.name	string	e.g. `FMCSA Company Census File (data.transportation.gov)`
dataSource.apiUrl	string	e.g. `https://data.transportation.gov/resource`
meta	object
meta.dataSource	object
meta.dataSource.name	string	e.g. `FMCSA Company Census File (data.transportation.gov)`
meta.dataSource.provenance	string	e.g. `live`

Fields are read from a real response captured 2026-11-04. Optional fields may be absent in other responses.

Errors

400 invalid request
401 missing or bad key
403 not in your plan
429 rate limited, see Retry-After
402 payment required
5xx retry with backoff

Error bodies and codes are described in Error codes and troubleshooting.

curl "https://api.compliancegrid.ai/v1/aviation/fmcsa/carrier/80806" \
  -H "Authorization: Bearer $CG_API_KEY"

Try it in the sandbox

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dotNumber (path, required)

Example response · captured from production 2026-11-04

{
  "success": true,
  "dotNumber": "80806",
  "found": true,
  "carrier": {
    "dotNumber": "80806",
    "legalName": "J B HUNT TRANSPORT INC",
    "dbaName": "J B HUNT",
    "carrierOperation": "Interstate",
    "hmFlag": true,
    "pcFlag": false,
    "phyStreet": "615 J B HUNT CORPORATE DRIVE",
    "phyCity": "LOWELL",
    "phyState": "AR",
    "phyZip": "72745",
    "phyCountry": "US",
    "mailingStreet": "615 J B HUNT CORPORATE DRIVE",
    "mailingCity": "LOWELL",
    "mailingState": "AR",
    "mailingZip": "72745",
    "telephone": "4798200000",
    "totalDrivers": 24116,
    "totalPowerUnits": 25280,
    "safetyRating": "S",
    "safetyRatingDate": "19920508",
    "oosDate": "",
    "oosReason": ""
  },
  "dataSource": {
    "name": "FMCSA Company Census File (data.transportation.gov)",
    "apiUrl": "https://data.transportation.gov/resource"
  },
  "meta": {
    "dataSource": {
      "name": "FMCSA Company Census File (data.transportation.gov)",
      "provenance": "live"
    }
  }
}