H469 U.S. POST OFFICE

Facility details

FIRMS code

H469

Name

U.S. POST OFFICE

Address

320 S 2ND AVE

SIOUX FALLS, SD 57104-7500

Status

Active (A)

Facility type

Importer's premises (06)

CBP port

Sioux Falls, S.d., SD (3502)

CBP region

3

Last changed

2026-10-23

Data as of

2026-10-23

Pre-filing validation

Validate H469 before you file

Check H469 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":"H469","port":"3502","use":"location_of_goods"}'