M231 UPS DULLES GATEWAY

Facility details

FIRMS code

M231

Name

UPS DULLES GATEWAY

Address

23941 W Service Dr, Cargo Bay 48

Sterling, VA 20166

Status

Active (A)

Facility type

Inspection facility (05)

CBP port

Washington, DC (5401)

CBP region

4

Last changed

2026-10-23

Data as of

2026-10-23

Pre-filing validation

Validate M231 before you file

Check M231 against the port and use on your filing before ACE does: list, status, port (ACE 164) and facility type.

curl https://api.firmsapi.com/v1/validate \
  -H "x-api-key: $FIRMSAPI_KEY" -H "content-type: application/json" \
  -d '{"code":"M231","port":"5401","use":"location_of_goods"}'