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sensors Mode-S transponder

A23FB9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N244JX · EMBRAER ERJ-145 · operated by DELUX PUBLIC CHARTER LLC

Hex
A23FB9
Octal
50437671
Decimal
10,633,145
Country
US
Tail
N244JX
Type
E145
No current signal · last broadcast 4d ago
Flights observed
172
Distinct callsigns
20
Country
US
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S A23FB9.

Country allocation

The ICAO 24-bit address A23FB9 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 20 distinct

Callsign Airline Flights Last seen
JSX203 - 16 2026-06-28
JSX202 - 14 2026-06-27
JSX286 - 6 2026-06-28
JSX520 JSX Air 5 2026-05-29
JSX981 - 4 2026-06-26
JSX980 - 4 2026-06-26
JSX521 JSX Air 4 2026-05-29
JSX500 - 4 2026-07-06
JSX281 JSX Air 4 2026-05-31
JSX280 JSX Air 4 2026-05-31
JSX8251 - 3 2026-04-17
JSX510 - 3 2026-06-29
JSX287 - 3 2026-06-29
JSX1103 - 3 2026-06-30
JSX1062 JSX Air 3 2026-06-23
JSX9188 JSX Air 2 2026-05-27
JSX9160 - 2 2026-04-14
JSX9003 JSX Air 2 2026-06-05
JSX8502 - 2 2026-05-20
JSX8150 - 2 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-09 JSX1121 - Jul 9, 20:55 UTCJul 9, 23:35 UTC2h 40m
2026-07-09 JSX880 - Jul 9, 16:55 UTCJul 9, 19:40 UTC2h 45m
2026-07-07 JSX9403 - Jul 7, 14:45 UTCJul 7, 17:20 UTC2h 35m
2026-07-06 JSX500 - Jul 6, 22:05 UTCJul 6, 22:30 UTC25m
2026-07-06 JSX500 - Jul 6, 19:25 UTCJul 6, 21:00 UTC1h 35m
2026-07-06 JSX500 - Jul 6, 16:10 UTCJul 6, 18:15 UTC2h 5m
2026-07-05 JSX883 - Jul 5, 21:00 UTCJul 5, 23:25 UTC2h 25m
2026-07-05 JSX882 - Jul 5, 17:05 UTCJul 5, 19:25 UTC2h 20m
2026-07-03 JSX505 - Jul 3, 20:40 UTCJul 3, 23:20 UTC2h 40m
2026-07-03 JSX504 - Jul 3, 17:00 UTCJul 3, 19:30 UTC2h 30m
2026-07-02 JSX881 - Jul 2, 17:30 UTCJul 2, 20:05 UTC2h 35m
2026-07-02 JSX1120 - Jul 2, 13:45 UTCJul 2, 16:10 UTC2h 25m
2026-06-30 JSX1103 - Jun 30, 19:20 UTCJun 30, 22:00 UTC2h 40m
2026-06-30 JSX1100 - Jun 30, 14:45 UTCJun 30, 17:10 UTC2h 25m
2026-06-29 JSX1103 - Jun 29, 19:54 UTCJun 29, 22:35 UTC2h 40m
2026-06-29 JSX510 - Jun 29, 16:00 UTCJun 29, 18:39 UTC2h 40m
2026-06-29 JSX287 - Jun 29, 00:14 UTCJun 29, 00:54 UTC40m
2026-06-28 JSX286 - Jun 28, 22:39 UTCJun 28, 23:25 UTC45m
2026-06-28 JSX223 - Jun 28, 19:55 UTCJun 28, 21:30 UTC1h 35m
2026-06-28 JSX222 - Jun 28, 17:19 UTCJun 28, 18:49 UTC1h 30m
2026-06-28 JSX203 - Jun 28, 00:09 UTCJun 28, 02:29 UTC2h 20m
2026-06-27 JSX202 - Jun 27, 16:30 UTCJun 27, 19:09 UTC2h 40m
2026-06-26 JSX221 - Jun 26, 18:49 UTCJun 26, 20:20 UTC1h 30m
2026-06-26 JSX220 - Jun 26, 16:00 UTCJun 26, 17:40 UTC1h 40m
2026-06-26 JSX981 - Jun 26, 14:15 UTCJun 26, 15:20 UTC1h 5m
2026-06-26 JSX980 - Jun 26, 12:29 UTCJun 26, 13:30 UTC1h 0m
2026-06-25 JSX8150 - Jun 25, 19:54 UTCJun 25, 22:14 UTC2h 20m
2026-06-25 JSX8150 - Jun 25, 16:59 UTCJun 25, 19:05 UTC2h 5m
2026-06-24 JSX1066 - Jun 24, 14:39 UTCJun 24, 21:50 UTC7h 10m
2026-06-23 JSX1062 - Jun 23, 14:39 UTCJun 23, 21:59 UTC7h 20m
2026-06-23 JSX287 - Jun 23, 00:24 UTCJun 23, 01:10 UTC45m
2026-06-22 JSX286 - Jun 22, 23:05 UTCJun 22, 23:45 UTC40m
2026-06-22 JSX223 - Jun 22, 20:34 UTCJun 22, 21:59 UTC1h 25m
2026-06-22 JSX222 - Jun 22, 17:29 UTCJun 22, 19:09 UTC1h 40m
2026-06-21 JSX511 HWO → DAL Jun 21, 18:39 UTCJun 21, 21:19 UTC2h 40m
2026-06-21 JSX1100 - Jun 21, 14:50 UTCJun 21, 17:29 UTC2h 40m
2026-06-18 JSX1103 - Jun 18, 20:25 UTCJun 18, 23:00 UTC2h 35m
2026-06-18 JSX500 - Jun 18, 14:30 UTCJun 18, 17:10 UTC2h 40m
2026-06-15 JSX581 MCO → HPN Jun 15, 20:54 UTCJun 15, 23:35 UTC2h 40m
2026-06-15 JSX580 HPN → MCO Jun 15, 16:59 UTCJun 15, 19:45 UTC2h 45m
2026-06-13 JSX581 MCO → HPN Jun 13, 17:20 UTCJun 13, 20:10 UTC2h 50m
2026-06-13 JSX580 HPN → MCO Jun 13, 13:15 UTCJun 13, 15:50 UTC2h 35m
2026-06-12 JSX501 - Jun 12, 20:30 UTCJun 12, 23:10 UTC2h 40m
2026-06-12 JSX510 DAL → OPF Jun 12, 16:20 UTCJun 12, 18:55 UTC2h 35m
2026-06-11 JSX567 BUR → APA Jun 11, 20:40 UTCJun 11, 22:10 UTC1h 30m
2026-06-11 JSX566 DAL → APA Jun 11, 17:40 UTCJun 11, 19:20 UTC1h 40m
2026-06-08 JSX1085 - Jun 8, 14:40 UTCJun 8, 21:40 UTC7h 0m
2026-06-07 JSX203 SNA → LAS Jun 7, 00:25 UTCJun 7, 02:50 UTC2h 25m
2026-06-06 JSX203 SNA → LAS Jun 6, 22:10 UTCJun 6, 23:05 UTC55m
2026-06-06 JSX202 DAL → LAS Jun 6, 20:35 UTCJun 6, 21:15 UTC40m

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 N244JX page for operator, model, and routing details .

Mode-S A23FB9 frequently asked

What is Mode-S code A23FB9?
A23FB9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N244JX.
Where is Mode-S A23FB9 registered?
Mode-S code A23FB9 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 A23FB9 broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A23FB9, octal 50437671, decimal 10,633,145.
What flights does A23FB9 operate?
Mode-S A23FB9 has broadcast 20 distinct callsigns, including JSX203, JSX202, JSX286, JSX520, JSX981.