FIRMSapiFIRMS code
X357 HORIZON AIR
Deleted Inspection facility
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 active codes at the same address below for a
replacement.
Facility details
- FIRMS code
- X357
- Name
- HORIZON AIR
- Address
- 2600 S 165TH STSEATAC, WA 98158-1115
- Status
- Deleted (D)
- Facility type
- Inspection facility (05)
- CBP port
- Seattle-Tacoma Intl Arpt, WA (3029)
- CBP region
- 7
- Last changed
- 2026-10-23
- Data as of
- 2026-10-23
Pre-filing validation
Validate X357 before you file
Validation fails X357: 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":"X357","port":"3029","use":"location_of_goods"}'Other codes at this address
Many facilities hold several FIRMS codes, for example one per facility type or operator.
| Code | Name | Type | Status |
|---|---|---|---|
| X319 | Alaska Airlines | Inspection facility | Active |
Nearby facilities in the same port
| Code | Name | Type | Distance |
|---|---|---|---|
| W413 | Southwest Airlines Cargo | Inspection facility | 116 m |
| X004 | GATE GOURMET, INC, | Bonded warehouse | 196 m |
| WAM7 | Worldwide Flight Services (Export) | Inspection facility | 197 m |
| WBG3 | Worldwide Flight Services (Import) | Inspection facility | 201 m |
| X362 | FEDERAL EXPRESS (FEDEX AIR) | Inspection facility | 413 m |
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.