Search and rescue vessel · Flag US
FIREBOAT DEFIANCE
FIREBOAT DEFIANCE is a search and rescue vessel (MMSI 338438943, flag US). Its last AIS position was reported on 13 Oct 2026 at 22:24 UTC in Port of Tacoma, bound for TACOMA.
Last position
Status: Under way using engine · Destination as broadcast: TACOMA
Position of MMSI 338438943, rounded to 0.01°; see the exact live position and the last 3 days on the live map.
Vessel details
| Name | FIREBOAT DEFIANCE |
|---|---|
| IMO number | – |
| MMSI | 338438943 |
| Call sign | DEFIANC |
| Type | Search and rescue |
| Flag | US (from the MMSI country code) |
| Length × beam | 16 m × 5 m |
| Highest reported draught | 1.0 m (last 30 days) |
| Estimated deadweight | – |
| Destination as broadcast | TACOMA |
| Seen in AIS | 10 Oct 2026 – 13 Oct 2026 (last 30 days) |
Port calls
No port calls detected in the last 60 days.
FIREBOAT DEFIANCE in the API
The full track, every port call and the live position of FIREBOAT DEFIANCE are available through the AIS Trail API. A free key covers the last 7 days of history; paid plans cover the last 12 months, and Pro and Business add live positions.
curl -H "Authorization: Bearer $AIS_TRAIL_KEY" \
"https://api.aistrail.com/v1/vessels/338438943/track?from=2026-10-10&resolution=1h"
curl -H "Authorization: Bearer $AIS_TRAIL_KEY" \
"https://api.aistrail.com/v1/vessels/338438943/port-calls?from=2026-10-10"Sources
- Live AIS via aisstream.io, provided without warranty. No published terms
- Open Waters AIS (https://openwaters.io/ais/), with each event's own source credit (mostly AISHub (https://www.aishub.net) and aisstream.io). Per-event source licence; not merged
Flags come from the MMSI country code, deadweight and size class are estimates from AIS dimensions, port calls are detected by AIS Trail from position reports. All sources and licences: Data sources.
Not for navigation. AIS data can be missing, delayed or wrong; do not use it for navigation, collision avoidance, search and rescue or any other safety-of-life purpose.
