W421 Southwest Airlines Co

Facility details

FIRMS code

W421

Name

Southwest Airlines Co

Address

2703 W Apollo St, Ste D

Boise, ID 83705-5092

Status

Active (A)

Facility type

Inspection facility (05)

CBP port

Boise, ID (2907)

CBP region

7

Last changed

2026-10-23

Data as of

2026-10-23

Pre-filing validation

Validate W421 before you file

Check W421 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":"W421","port":"2907","use":"location_of_goods"}'