sensors Mode-S transponder

A361A4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N317JK · PITTS S-2 Special · operated by KRESS DAGMAR

Hex
A361A4
Octal
50660644
Decimal
10,707,364
Country
US
Tail
N317JK
Type
PTS2
No current signal · last broadcast 1d ago
Flights observed
38
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A361A4.

Country allocation

The ICAO 24-bit address A361A4 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
N317JK - 38 2026-06-28

Recent flights last 38

DateFlightRouteTakeoffLandingDuration
2026-06-28 N317JK - Jun 28, 23:34 UTCJun 29, 00:05 UTC30m
2026-06-28 N317JK - Jun 28, 20:39 UTCJun 28, 21:10 UTC30m
2026-06-28 N317JK - Jun 28, 18:00 UTCJun 28, 18:25 UTC25m
2026-06-28 N317JK - Jun 28, 16:49 UTCJun 28, 17:10 UTC20m
2026-06-28 N317JK - Jun 28, 15:20 UTCJun 28, 15:44 UTC25m
2026-06-27 N317JK - Jun 27, 18:24 UTCJun 27, 18:49 UTC25m
2026-06-27 N317JK - Jun 27, 16:44 UTCJun 27, 17:04 UTC20m
2026-06-27 N317JK - Jun 27, 15:00 UTCJun 27, 15:30 UTC30m
2026-06-19 N317JK - Jun 19, 20:40 UTCJun 19, 21:19 UTC40m
2026-06-14 N317JK - Jun 14, 20:20 UTCJun 14, 20:55 UTC35m
2026-06-13 N317JK - Jun 13, 15:45 UTCJun 13, 16:20 UTC35m
2026-05-26 N317JK - May 26, 15:54 UTCMay 26, 16:30 UTC35m
2026-05-26 N317JK - May 26, 14:09 UTCMay 26, 14:35 UTC25m
2026-05-20 N317JK - May 20, 19:15 UTCMay 20, 19:45 UTC30m
2026-05-17 N317JK - May 17, 15:40 UTCMay 17, 16:10 UTC30m
2026-05-17 N317JK - May 17, 01:10 UTCMay 17, 01:30 UTC20m
2026-05-16 N317JK - May 16, 22:45 UTCMay 16, 23:15 UTC30m
2026-05-16 N317JK - May 16, 19:55 UTCMay 16, 20:25 UTC30m
2026-05-16 N317JK - May 16, 17:55 UTCMay 16, 18:20 UTC25m
2026-05-16 N317JK - May 16, 16:25 UTCMay 16, 16:45 UTC20m
2026-05-16 N317JK - May 16, 14:41 UTCMay 16, 15:10 UTC30m
2026-05-03 N317JK - May 3, 18:34 UTCMay 3, 19:15 UTC40m
2026-05-03 N317JK - May 3, 00:40 UTCMay 3, 01:10 UTC30m
2026-05-02 N317JK - May 2, 22:50 UTCMay 2, 23:05 UTC15m
2026-05-02 N317JK - May 2, 21:25 UTCMay 2, 21:45 UTC20m
2026-05-02 N317JK - May 2, 19:30 UTCMay 2, 19:55 UTC25m
2026-05-02 N317JK - May 2, 18:05 UTCMay 2, 18:25 UTC20m
2026-05-02 N317JK - May 2, 16:00 UTCMay 2, 16:35 UTC35m
2026-04-25 N317JK - Apr 25, 20:00 UTCApr 25, 20:45 UTC45m
2026-04-19 N317JK - Apr 19, 19:25 UTCApr 19, 19:55 UTC30m
2026-04-19 N317JK - Apr 19, 17:50 UTCApr 19, 18:10 UTC20m
2026-04-19 N317JK - Apr 19, 16:45 UTCApr 19, 17:00 UTC15m
2026-04-19 N317JK - Apr 19, 15:40 UTCApr 19, 16:05 UTC25m
2026-04-18 N317JK - Apr 18, 20:40 UTCApr 18, 20:55 UTC15m
2026-04-18 N317JK - Apr 18, 19:25 UTCApr 18, 19:50 UTC25m
2026-04-18 N317JK - Apr 18, 15:30 UTCApr 18, 16:00 UTC30m
2026-04-12 N317JK - Apr 12, 19:15 UTCApr 12, 19:35 UTC20m
2026-04-12 N317JK - Apr 12, 17:50 UTCApr 12, 18:10 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 N317JK page for operator, model, and routing details .

Mode-S A361A4 frequently asked

What is Mode-S code A361A4?
A361A4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N317JK.
Where is Mode-S A361A4 registered?
Mode-S code A361A4 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 A361A4 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A361A4, octal 50660644, decimal 10,707,364.
What flights does A361A4 operate?
Mode-S A361A4 has broadcast 1 distinct callsign, including N317JK.