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sensors Mode-S transponder

ACF91A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N935JX · operated by DELUX PUBLIC CHARTER LLC

Hex
ACF91A
Octal
53174432
Decimal
11,335,962
Country
US
Tail
N935JX
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
227
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S ACF91A.

Country allocation

The ICAO 24-bit address ACF91A 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 JSX Air 14 2026-07-21
JSX202 JSX Air 13 2026-07-22
JSX1120 JSX Air 11 2026-05-14
JSX1121 JSX Air 10 2026-05-14
JSX1103 JSX Air 6 2026-05-10
JSX1100 JSX Air 6 2026-05-15
JSX981 - 5 2026-07-20
JSX980 JSX Air 5 2026-07-20
JSX750 JSX Air 5 2026-07-26
JSX521 - 5 2026-07-18
JSX520 - 5 2026-07-18
JSX287 - 5 2026-07-20
JSX286 - 5 2026-07-20
JSX221 JSX Air 5 2026-07-22
JSX201 JSX Air 5 2026-06-11
JSX200 JSX Air 5 2026-06-11
JSX751 JSX Air 4 2026-07-26
JSX407 JSX Air 4 2026-07-25
JSX406 JSX Air 4 2026-07-25
JSX223 JSX Air 4 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JSX464 SCF → APA Jul 26, 22:15 UTCJul 26, 22:30 UTC15m
2026-07-26 JSX751 SNA → SCF Jul 26, 19:15 UTCJul 26, 20:10 UTC55m
2026-07-26 JSX750 DAL → SCF Jul 26, 17:10 UTCJul 26, 18:05 UTC55m
2026-07-25 JSX407 LAS → SCF Jul 25, 21:10 UTCJul 25, 21:55 UTC45m
2026-07-25 JSX406 SCF → LAS Jul 25, 19:15 UTCJul 25, 20:00 UTC45m
2026-07-25 JSX401 BUR → PHX Jul 25, 17:20 UTCJul 25, 18:25 UTC1h 5m
2026-07-25 JSX400 PHX → BUR Jul 25, 15:20 UTCJul 25, 16:25 UTC1h 5m
2026-07-24 JSX403 BUR → PHX Jul 24, 23:10 UTCJul 25, 00:15 UTC1h 5m
2026-07-24 JSX402 SCF → BUR Jul 24, 21:05 UTCJul 24, 22:10 UTC1h 5m
2026-07-24 JSX751 SNA → SCF Jul 24, 19:10 UTCJul 24, 20:05 UTC55m
2026-07-24 JSX750 DAL → SCF Jul 24, 17:20 UTCJul 24, 18:15 UTC55m
2026-07-22 JSX414 SCF → LAS Jul 22, 21:10 UTCJul 22, 21:55 UTC45m
2026-07-22 JSX202 DAL → LAS Jul 22, 16:35 UTCJul 22, 19:00 UTC2h 25m
2026-07-22 JSX221 GUC → DAL Jul 22, 01:10 UTCJul 22, 02:35 UTC1h 25m
2026-07-22 JSX221 GUC → DAL Jul 22, 00:15 UTCJul 22, 00:40 UTC25m
2026-07-21 JSX220 DAL → AUS Jul 21, 15:15 UTCJul 21, 16:50 UTC1h 35m
2026-07-21 JSX203 SNA → LAS Jul 21, 00:20 UTCJul 21, 02:55 UTC2h 35m
2026-07-20 JSX203 SNA → LAS Jul 20, 22:30 UTCJul 20, 23:10 UTC40m
2026-07-20 JSX202 DAL → LAS Jul 20, 20:15 UTCJul 20, 21:05 UTC50m
2026-07-20 JSX202 DAL → LAS Jul 20, 16:30 UTCJul 20, 19:00 UTC2h 30m
2026-07-20 JSX981 - Jul 20, 14:05 UTCJul 20, 15:10 UTC1h 5m
2026-07-20 JSX980 DAL → HOB Jul 20, 12:25 UTCJul 20, 13:20 UTC55m
2026-07-20 JSX287 - Jul 20, 02:00 UTCJul 20, 02:45 UTC45m
2026-07-20 JSX286 - Jul 20, 00:30 UTCJul 20, 01:15 UTC45m
2026-07-19 JSX223 GUC → DAL Jul 19, 22:25 UTCJul 19, 23:40 UTC1h 15m
2026-07-19 JSX223 GUC → DAL Jul 19, 20:45 UTCJul 19, 21:45 UTC1h 0m
2026-07-19 JSX222 DAL → GUC Jul 19, 17:45 UTCJul 19, 19:10 UTC1h 25m
2026-07-18 JSX293 HOU → DAL Jul 18, 22:25 UTCJul 18, 23:10 UTC45m
2026-07-18 JSX292 - Jul 18, 20:40 UTCJul 18, 21:25 UTC45m
2026-07-18 JSX521 - Jul 18, 18:10 UTCJul 18, 19:40 UTC1h 30m
2026-07-18 JSX520 - Jul 18, 15:40 UTCJul 18, 17:10 UTC1h 30m
2026-07-17 JSX223 - Jul 17, 23:55 UTCJul 18, 01:30 UTC1h 35m
2026-07-17 JSX222 DAL → GUC Jul 17, 20:55 UTCJul 17, 22:25 UTC1h 30m
2026-07-17 JSX521 - Jul 17, 17:55 UTCJul 17, 19:30 UTC1h 35m
2026-07-17 JSX520 - Jul 17, 15:29 UTCJul 17, 16:59 UTC1h 30m
2026-07-17 JSX281 - Jul 17, 14:00 UTCJul 17, 14:50 UTC50m
2026-07-17 JSX280 - Jul 17, 12:10 UTCJul 17, 13:00 UTC50m
2026-07-17 JSX203 LAS → DAL Jul 17, 00:35 UTCJul 17, 03:10 UTC2h 35m
2026-07-16 JSX203 BUR → LAS Jul 16, 22:30 UTCJul 16, 23:10 UTC40m
2026-07-16 JSX202 LAS → BUR Jul 16, 20:29 UTCJul 16, 21:19 UTC50m
2026-07-16 JSX660 - Jul 16, 17:14 UTCJul 16, 18:44 UTC1h 30m
2026-07-16 JSX462 - Jul 16, 14:40 UTCJul 16, 16:09 UTC1h 30m
2026-07-15 JSX477 - Jul 15, 23:50 UTCJul 16, 00:50 UTC1h 0m
2026-07-15 JSX476 - Jul 15, 22:00 UTCJul 15, 22:50 UTC50m
2026-07-15 JSX407 - Jul 15, 20:15 UTCJul 15, 21:00 UTC45m
2026-07-15 JSX406 - Jul 15, 18:25 UTCJul 15, 19:20 UTC55m
2026-07-14 JSX409 - Jul 14, 03:10 UTCJul 14, 03:55 UTC45m
2026-07-14 JSX408 - Jul 14, 00:50 UTCJul 14, 01:45 UTC55m
2026-07-13 JSX411 LAS → SCF Jul 13, 23:10 UTCJul 13, 23:50 UTC40m
2026-07-13 JSX410 - Jul 13, 21:15 UTCJul 13, 22:10 UTC55m

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 N935JX page for operator, model, and routing details .

Mode-S ACF91A frequently asked

What is Mode-S code ACF91A?
ACF91A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N935JX.
Where is Mode-S ACF91A registered?
Mode-S code ACF91A 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 ACF91A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACF91A, octal 53174432, decimal 11,335,962.
What flights does ACF91A operate?
Mode-S ACF91A has broadcast 20 distinct callsigns, including JSX203, JSX202, JSX1120, JSX1121, JSX1103.