FIRMS code

J420 CUSTOMS OFFICE-CES 4-O'HARE SVCS

Deleted CBP administrative site

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: J420
Name: CUSTOMS OFFICE-CES 4-O'HARE SVCS
Address: 959 W THORNDALE AVE
ITASCA, IL 60143-1338
Status: Deleted (D)
Facility type: CBP administrative site (08)
CBP port: Chicago, IL (3901)
CBP region: 3
Last changed: 2026-10-23
Data as of: 2026-10-23

Pre-filing validation

Validate J420 before you file

Validation fails J420: 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":"J420","port":"3901","use":"location_of_goods"}'

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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.