Apparatus

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sensors Mode-S transponder

A913A3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N684S · CESSNA 207 Turbo Stationair · operated by SECOND WIND AVIATION CORP

Hex
A913A3
Octal
52211643
Decimal
11,080,611
Country
US
Tail
N684S
Type
C207
No current signal · last broadcast Jul 21, 23:55 UTC
Flights observed
349
Distinct callsigns
1
Country
US
Last broadcast
Jul 21, 23:55 UTC

Last known position

Most recent position reported by Mode-S A913A3.

Country allocation

The ICAO 24-bit address A913A3 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
SJN5 - 349 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 SJN5 LPS → BLI Jul 21, 23:30 UTCJul 21, 23:55 UTC25m
2026-07-21 SJN5 - Jul 21, 21:35 UTCJul 21, 22:05 UTC30m
2026-07-21 SJN5 - Jul 21, 20:05 UTCJul 21, 20:15 UTC10m
2026-07-21 SJN5 - Jul 21, 15:55 UTCJul 21, 16:25 UTC30m
2026-07-21 SJN5 - Jul 21, 14:40 UTCJul 21, 15:25 UTC45m
2026-07-20 SJN5 - Jul 20, 18:25 UTCJul 20, 19:05 UTC40m
2026-07-20 SJN5 - Jul 20, 15:15 UTCJul 20, 15:40 UTC25m
2026-07-20 SJN5 - Jul 20, 13:05 UTCJul 20, 13:30 UTC25m
2026-07-18 SJN5 - Jul 18, 19:50 UTCJul 18, 20:35 UTC45m
2026-07-17 SJN5 - Jul 17, 23:35 UTCJul 17, 23:50 UTC15m
2026-07-17 SJN5 - Jul 17, 21:25 UTCJul 17, 22:20 UTC55m
2026-07-17 SJN5 - Jul 17, 16:40 UTCJul 17, 19:05 UTC2h 25m
2026-07-16 SJN5 LPS → BLI Jul 16, 23:29 UTCJul 17, 00:14 UTC45m
2026-07-16 SJN5 - Jul 16, 22:30 UTCJul 16, 22:45 UTC15m
2026-07-16 SJN5 - Jul 16, 21:05 UTCJul 16, 21:30 UTC25m
2026-07-16 SJN5 - Jul 16, 14:40 UTCJul 16, 16:25 UTC1h 45m
2026-07-16 SJN5 - Jul 16, 00:55 UTCJul 16, 01:35 UTC40m
2026-07-15 SJN5 BLI → BLI Jul 15, 22:30 UTCJul 16, 00:15 UTC1h 45m
2026-07-15 SJN5 - Jul 15, 20:15 UTCJul 15, 21:35 UTC1h 20m
2026-07-15 SJN5 - Jul 15, 16:50 UTCJul 15, 17:25 UTC35m
2026-07-15 SJN5 - Jul 15, 14:45 UTCJul 15, 15:20 UTC35m
2026-07-14 SJN5 - Jul 14, 23:05 UTCJul 14, 23:15 UTC10m
2026-07-14 SJN5 - Jul 14, 22:00 UTCJul 14, 22:10 UTC10m
2026-07-14 SJN5 ESD → BLI Jul 14, 17:10 UTCJul 14, 17:40 UTC30m
2026-07-14 SJN5 - Jul 14, 14:35 UTCJul 14, 14:45 UTC10m
2026-07-13 SJN5 - Jul 13, 21:00 UTCJul 13, 21:30 UTC30m
2026-07-13 SJN5 - Jul 13, 15:45 UTCJul 13, 16:10 UTC25m
2026-07-13 SJN5 - Jul 13, 15:00 UTCJul 13, 15:10 UTC10m
2026-07-13 SJN5 - Jul 13, 02:45 UTCJul 13, 03:45 UTC1h 0m
2026-07-13 SJN5 - Jul 13, 01:05 UTCJul 13, 02:15 UTC1h 10m
2026-07-12 SJN5 - Jul 12, 20:25 UTCJul 12, 21:00 UTC35m
2026-07-12 SJN5 - Jul 12, 19:15 UTCJul 12, 19:55 UTC40m
2026-07-12 SJN5 BFI → FRD Jul 12, 17:10 UTCJul 12, 18:45 UTC1h 35m
2026-07-12 SJN5 - Jul 12, 15:45 UTCJul 12, 16:55 UTC1h 10m
2026-07-11 SJN5 ESD → BLI Jul 11, 23:50 UTCJul 12, 00:01 UTC10m
2026-07-11 SJN5 - Jul 11, 22:15 UTCJul 11, 22:25 UTC10m
2026-07-11 SJN5 - Jul 11, 16:40 UTCJul 11, 17:50 UTC1h 10m
2026-07-11 SJN5 - Jul 11, 02:35 UTCJul 11, 03:35 UTC1h 0m
2026-07-11 SJN5 - Jul 11, 01:35 UTCJul 11, 02:15 UTC40m
2026-07-10 SJN5 BFI → BLI Jul 10, 23:00 UTCJul 11, 00:10 UTC1h 10m
2026-07-10 SJN5 - Jul 10, 18:55 UTCJul 10, 22:45 UTC3h 50m
2026-07-10 SJN5 - Jul 10, 17:25 UTCJul 10, 18:20 UTC55m
2026-07-10 SJN5 - Jul 10, 16:20 UTCJul 10, 17:00 UTC40m
2026-07-10 SJN5 - Jul 10, 15:30 UTCJul 10, 15:40 UTC10m
2026-07-10 SJN5 BLI → BLI Jul 10, 00:25 UTCJul 10, 00:35 UTC10m
2026-07-09 SJN5 BFI → BLI Jul 9, 21:05 UTCJul 9, 23:50 UTC2h 45m
2026-07-09 SJN5 - Jul 9, 20:10 UTCJul 9, 20:50 UTC40m
2026-07-09 SJN5 - Jul 9, 18:15 UTCJul 9, 18:55 UTC40m
2026-07-09 SJN5 - Jul 9, 13:40 UTCJul 9, 15:05 UTC1h 25m
2026-07-08 SJN5 ESD → BLI Jul 8, 23:45 UTCJul 9, 00:00 UTC15m

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 N684S page for operator, model, and routing details .

Mode-S A913A3 frequently asked

What is Mode-S code A913A3?
A913A3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N684S.
Where is Mode-S A913A3 registered?
Mode-S code A913A3 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 A913A3 broadcasting right now?
No active broadcast right now. Last signal was Jul 21, 23:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A913A3, octal 52211643, decimal 11,080,611.
What flights does A913A3 operate?
Mode-S A913A3 has broadcast 1 distinct callsign, including SJN5.