FIRMS code

W437 Groskopf Warehouse & Logistics

Deleted Bonded warehouse

This code is deleted in CBP's FIRMS list. Don't use it on new filings. FIRMSapi keeps deleted codes so lookups of old paperwork still resolve; check the port listing for a replacement.

Facility details

FIRMS code: W437
Name: Groskopf Warehouse & Logistics
Address: 20580 8th St E
Sonoma, CA 95476-9590
Status: Deleted (D)
Facility type: Bonded warehouse (04)
CBP port: San Francisco, CA (2809)
CBP region: 7
Last changed: 2026-10-23
Data as of: 2026-10-23

Pre-filing validation

Validate W437 before you file

Validation fails W437: it's deleted, the reject ACE returns as 159. Search the port for an active replacement.

curl https://api.firmsapi.com/v1/validate \
  -H "x-api-key: $FIRMSAPI_KEY" -H "content-type: application/json" \
  -d '{"code":"W437","port":"2809","use":"warehouse_entry"}'

Get a free key Validation guide

Source: U.S. Customs and Border Protection FIRMS code list, data as of 2026-10-23. FIRMSapi is not affiliated with CBP; confirm bond status and filing details in ACE.