Apparatus

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sensors Mode-S transponder

A1E903

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N222FY · CESSNA 750 Citation 10 · operated by 2FLIU LLC

Hex
A1E903
Octal
50364403
Decimal
10,610,947
Country
US
Tail
N222FY
Type
C750
No current signal · last broadcast 1d ago
Flights observed
20
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A1E903.

Country allocation

The ICAO 24-bit address A1E903 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
JTL222 Jetall Holdings 20 2026-07-13

Recent flights last 20

DateFlightRouteTakeoffLandingDuration
2026-07-13 JTL222 SJC → APA Jul 13, 12:55 UTCJul 13, 15:35 UTC2h 40m
2026-07-10 JTL222 SJC → APA Jul 10, 14:50 UTCJul 10, 17:10 UTC2h 20m
2026-07-02 JTL222 SJC → APA Jul 2, 20:40 UTCJul 2, 21:45 UTC1h 5m
2026-07-02 JTL222 SJC → APA Jul 2, 18:50 UTCJul 2, 20:05 UTC1h 15m
2026-07-01 JTL222 SJC → APA Jul 1, 21:40 UTCJul 1, 22:00 UTC20m
2026-07-01 JTL222 SJC → APA Jul 1, 16:10 UTCJul 1, 20:40 UTC4h 30m
2026-06-30 JTL222 SJC → APA Jun 30, 20:55 UTCJun 30, 21:35 UTC40m
2026-06-30 JTL222 SJC → APA Jun 30, 15:55 UTCJun 30, 19:05 UTC3h 10m
2026-06-27 JTL222 SJC → APA Jun 27, 16:44 UTCJun 27, 20:34 UTC3h 50m
2026-06-26 JTL222 SJC → APA Jun 26, 15:49 UTCJun 26, 17:50 UTC2h 0m
2026-06-24 JTL222 SJC → APA Jun 24, 19:10 UTCJun 24, 21:34 UTC2h 25m
2026-06-19 JTL222 SJC → APA Jun 19, 15:59 UTCJun 19, 16:59 UTC1h 0m
2026-06-18 JTL222 SJC → APA Jun 18, 17:21 UTCJun 18, 20:15 UTC2h 54m
2026-06-15 JTL222 SJC → APA Jun 15, 22:40 UTCJun 16, 00:20 UTC1h 40m
2026-06-14 JTL222 SJC → APA Jun 14, 18:00 UTCJun 14, 19:40 UTC1h 40m
2026-06-14 JTL222 SJC → APA Jun 14, 00:40 UTCJun 14, 01:50 UTC1h 10m
2026-06-13 JTL222 SJC → APA Jun 13, 17:00 UTCJun 13, 18:20 UTC1h 20m
2026-06-12 JTL222 SJC → APA Jun 12, 21:55 UTCJun 12, 22:10 UTC15m
2026-06-12 JTL222 SJC → APA Jun 12, 19:20 UTCJun 12, 20:45 UTC1h 25m
2026-06-10 JTL222 SJC → APA Jun 10, 20:25 UTCJun 10, 21:15 UTC50m

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 N222FY page for operator, model, and routing details .

Mode-S A1E903 frequently asked

What is Mode-S code A1E903?
A1E903 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N222FY.
Where is Mode-S A1E903 registered?
Mode-S code A1E903 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 A1E903 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 A1E903, octal 50364403, decimal 10,610,947.
What flights does A1E903 operate?
Mode-S A1E903 has broadcast 1 distinct callsign, including JTL222.