O478 U.S. CUSTOMS OFFICE - MAIL FACILITY

Facility details

FIRMS code

O478

Name

U.S. CUSTOMS OFFICE - MAIL FACILITY

Address

532 N REGIONAL RD, STE C

GREENSBORO, NC 27409-9057

Status

Active (A)

Facility type

Inspection facility (05)

CBP port

Winston-Salem, NC (1502)

CBP region

4

Last changed

2026-10-23

Data as of

2026-10-23

Pre-filing validation

Validate O478 before you file

Check O478 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":"O478","port":"1502","use":"location_of_goods"}'