FIRMS code

L464 UNITED AIRLINES

Deleted Rail or air terminal

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: L464
Name: UNITED AIRLINES
Address: CHAS INTL ARPT
NORTH CHARLESTON, SC 29406
Status: Deleted (D)
Facility type: Rail or air terminal (10)
CBP port: Charleston, SC (1601)
CBP region: 4
Last changed: 2026-10-23
Data as of: 2026-10-23

Pre-filing validation

Validate L464 before you file

Validation fails L464: 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":"L464","port":"1601","use":"location_of_goods"}'

Get a free key Validation guide

Other codes at this address

Many facilities hold several FIRMS codes, for example one per facility type or operator.

Code	Name	Type	Status
L434	EASTERN AIR LINES	Inspection facility	Deleted
L435	U.S. Airways	Rail or air terminal	Deleted
L477	HAWTHORNE AVIATION	Inspection facility	Deleted

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.