Y393 U.S. POST OFFICE

Facility details

FIRMS code

Y393

Name

U.S. POST OFFICE

Address

2535 MIDWAY DR

SAN DIEGO, CA 92110-3237

Status

Active (A)

Facility type

Not specified

CBP port

San Diego, CA (2501)

CBP region

7

Last changed

2026-10-23

Data as of

2026-10-23

Pre-filing validation

Validate Y393 before you file

Check Y393 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":"Y393","port":"2501","use":"location_of_goods"}'