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sensors Mode-S transponder

A13309

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N17689 · DE HAVILLAND DHC-3 Otter · operated by RJF HOLDINGS LLC

Hex
A13309
Octal
50231411
Decimal
10,564,361
Country
US
Tail
N17689
Type
DHC3
Broadcasting now · callsign N17689 · 525 ft
Flights observed
120
Distinct callsigns
1
Country
US
Last broadcast
9d ago

Current position

A13309 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A13309 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
N17689 - 120 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N17689 - Jul 26, 19:45 UTCJul 26, 21:30 UTC1h 45m
2026-07-26 N17689 - Jul 26, 02:10 UTCJul 26, 02:25 UTC15m
2026-07-25 N17689 - Jul 25, 23:20 UTCJul 25, 23:35 UTC15m
2026-07-25 N17689 - Jul 25, 17:35 UTCJul 25, 17:50 UTC15m
2026-07-25 N17689 - Jul 25, 15:55 UTCJul 25, 16:20 UTC25m
2026-07-25 N17689 - Jul 25, 03:25 UTCJul 25, 03:45 UTC20m
2026-07-25 N17689 - Jul 25, 02:00 UTCJul 25, 02:20 UTC20m
2026-07-25 N17689 - Jul 25, 00:45 UTCJul 25, 01:45 UTC1h 0m
2026-07-24 N17689 - Jul 24, 23:15 UTCJul 24, 23:30 UTC15m
2026-07-24 N17689 - Jul 24, 20:10 UTCJul 24, 22:45 UTC2h 35m
2026-07-23 N17689 - Jul 23, 01:40 UTCJul 23, 01:50 UTC10m
2026-07-22 N17689 AKN → AKN Jul 22, 23:25 UTCJul 23, 00:15 UTC50m
2026-07-22 N17689 - Jul 22, 22:25 UTCJul 22, 22:40 UTC15m
2026-07-22 N17689 - Jul 22, 22:00 UTCJul 22, 22:10 UTC10m
2026-07-22 N17689 - Jul 22, 18:15 UTCJul 22, 19:05 UTC50m
2026-07-22 N17689 - Jul 22, 17:30 UTCJul 22, 17:40 UTC10m
2026-07-22 N17689 - Jul 22, 16:55 UTCJul 22, 17:25 UTC30m
2026-07-22 N17689 - Jul 22, 15:55 UTCJul 22, 16:10 UTC15m
2026-07-21 N17689 - Jul 21, 18:50 UTCJul 21, 20:05 UTC1h 15m
2026-07-21 N17689 - Jul 21, 17:45 UTCJul 21, 18:10 UTC25m
2026-07-20 N17689 - Jul 20, 00:55 UTCJul 20, 01:55 UTC1h 0m
2026-07-20 N17689 - Jul 20, 00:10 UTCJul 20, 00:50 UTC40m
2026-07-19 N17689 - Jul 19, 20:05 UTCJul 19, 21:05 UTC1h 0m
2026-07-19 N17689 - Jul 19, 19:05 UTCJul 19, 19:30 UTC25m
2026-07-18 N17689 - Jul 18, 23:20 UTCJul 18, 23:35 UTC15m
2026-07-18 N17689 - Jul 18, 20:15 UTCJul 18, 20:30 UTC15m
2026-07-18 N17689 - Jul 18, 01:05 UTCJul 18, 01:15 UTC10m
2026-07-17 N17689 - Jul 17, 20:55 UTCJul 17, 21:20 UTC25m
2026-07-15 N17689 - Jul 15, 23:35 UTCJul 15, 23:50 UTC15m
2026-07-15 N17689 - Jul 15, 20:35 UTCJul 15, 20:50 UTC15m
2026-07-15 N17689 - Jul 15, 17:25 UTCJul 15, 17:40 UTC15m
2026-07-15 N17689 - Jul 15, 16:35 UTCJul 15, 16:50 UTC15m
2026-07-14 N17689 - Jul 14, 00:15 UTCJul 14, 00:30 UTC15m
2026-07-13 N17689 - Jul 13, 22:50 UTCJul 13, 23:05 UTC15m
2026-07-13 N17689 - Jul 13, 21:55 UTCJul 13, 22:05 UTC10m
2026-07-13 N17689 - Jul 13, 20:25 UTCJul 13, 20:40 UTC15m
2026-07-13 N17689 - Jul 13, 00:55 UTCJul 13, 02:40 UTC1h 45m
2026-07-12 N17689 - Jul 12, 21:50 UTCJul 12, 22:10 UTC20m
2026-07-12 N17689 - Jul 12, 20:15 UTCJul 12, 21:25 UTC1h 10m
2026-07-12 N17689 - Jul 12, 17:15 UTCJul 12, 17:30 UTC15m
2026-07-12 N17689 - Jul 12, 16:20 UTCJul 12, 16:40 UTC20m
2026-07-10 N17689 - Jul 10, 01:00 UTCJul 10, 02:40 UTC1h 40m
2026-07-09 N17689 - Jul 9, 19:40 UTCJul 9, 22:00 UTC2h 20m
2026-07-09 N17689 - Jul 9, 18:25 UTCJul 9, 18:40 UTC15m
2026-07-09 N17689 - Jul 9, 00:25 UTCJul 9, 00:40 UTC15m
2026-07-08 N17689 - Jul 8, 20:40 UTCJul 8, 20:55 UTC15m
2026-07-08 N17689 - Jul 8, 00:05 UTCJul 8, 00:25 UTC20m
2026-07-07 N17689 - Jul 7, 15:55 UTCJul 7, 16:15 UTC20m
2026-07-07 N17689 - Jul 7, 00:10 UTCJul 7, 03:10 UTC3h 0m
2026-07-06 N17689 - Jul 6, 22:05 UTCJul 6, 22:25 UTC20m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N17689 page for operator, model, and routing details .

Mode-S A13309 frequently asked

What is Mode-S code A13309?
A13309 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N17689.
Where is Mode-S A13309 registered?
Mode-S code A13309 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A13309 broadcasting right now?
Yes. Mode-S A13309 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A13309, octal 50231411, decimal 10,564,361.
What flights does A13309 operate?
Mode-S A13309 has broadcast 1 distinct callsign, including N17689.