Apparatus

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sensors Mode-S transponder

A49498

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N3944Q · CESSNA 172 Skyhawk · operated by REGISTRATION PENDING

Hex
A49498
Octal
51112230
Decimal
10,785,944
Country
US
Tail
N3944Q
Type
C172
No current signal · last broadcast 6d ago
Flights observed
255
Distinct callsigns
1
Country
US
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S A49498.

Country allocation

The ICAO 24-bit address A49498 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
N3944Q - 255 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N3944Q COI → COI Jul 26, 20:00 UTCJul 26, 20:20 UTC20m
2026-07-26 N3944Q - Jul 26, 18:35 UTCJul 26, 19:05 UTC30m
2026-07-26 N3944Q - Jul 26, 16:40 UTCJul 26, 17:20 UTC40m
2026-07-26 N3944Q - Jul 26, 15:20 UTCJul 26, 15:50 UTC30m
2026-07-25 N3944Q - Jul 25, 19:35 UTCJul 25, 21:25 UTC1h 50m
2026-07-25 N3944Q - Jul 25, 18:15 UTCJul 25, 18:30 UTC15m
2026-07-25 N3944Q COI → TIX Jul 25, 15:45 UTCJul 25, 17:35 UTC1h 50m
2026-07-25 N3944Q - Jul 25, 14:10 UTCJul 25, 14:40 UTC30m
2026-07-25 N3944Q - Jul 25, 12:50 UTCJul 25, 13:35 UTC45m
2026-07-25 N3944Q - Jul 25, 11:30 UTCJul 25, 12:15 UTC45m
2026-07-25 N3944Q COI → COI Jul 25, 01:55 UTCJul 25, 03:35 UTC1h 40m
2026-07-24 N3944Q - Jul 24, 18:00 UTCJul 24, 19:35 UTC1h 35m
2026-07-24 N3944Q COI → IMM Jul 24, 15:40 UTCJul 24, 17:00 UTC1h 20m
2026-07-24 N3944Q - Jul 24, 11:40 UTCJul 24, 13:25 UTC1h 45m
2026-07-23 N3944Q - Jul 23, 18:35 UTCJul 23, 20:30 UTC1h 55m
2026-07-23 N3944Q COI → COI Jul 23, 15:40 UTCJul 23, 17:45 UTC2h 5m
2026-07-23 N3944Q COI → COI Jul 23, 13:05 UTCJul 23, 13:35 UTC30m
2026-07-21 N3944Q - Jul 21, 19:05 UTCJul 21, 20:10 UTC1h 5m
2026-07-21 N3944Q COI → COI Jul 21, 13:40 UTCJul 21, 14:55 UTC1h 15m
2026-07-21 N3944Q - Jul 21, 09:05 UTCJul 21, 12:10 UTC3h 5m
2026-07-20 N3944Q - Jul 20, 14:00 UTCJul 20, 15:05 UTC1h 5m
2026-07-19 N3944Q - Jul 19, 21:25 UTCJul 19, 22:15 UTC50m
2026-07-19 N3944Q - Jul 19, 19:55 UTCJul 19, 20:45 UTC50m
2026-07-19 N3944Q - Jul 19, 18:15 UTCJul 19, 18:40 UTC25m
2026-07-19 N3944Q - Jul 19, 15:25 UTCJul 19, 17:10 UTC1h 45m
2026-07-19 N3944Q - Jul 19, 13:50 UTCJul 19, 14:25 UTC35m
2026-07-18 N3944Q - Jul 18, 20:10 UTCJul 18, 22:10 UTC2h 0m
2026-07-18 N3944Q COI → COI Jul 18, 16:10 UTCJul 18, 18:25 UTC2h 15m
2026-07-18 N3944Q COI → COI Jul 18, 14:35 UTCJul 18, 15:20 UTC45m
2026-07-18 N3944Q - Jul 18, 12:10 UTCJul 18, 13:25 UTC1h 15m
2026-07-17 N3944Q - Jul 17, 19:15 UTCJul 17, 19:49 UTC35m
2026-07-17 N3944Q COI → COI Jul 17, 13:05 UTCJul 17, 14:50 UTC1h 45m
2026-07-16 N3944Q COI → COI Jul 16, 13:49 UTCJul 16, 14:45 UTC55m
2026-07-16 N3944Q COI → COI Jul 16, 11:15 UTCJul 16, 11:40 UTC25m
2026-07-16 N3944Q COI → COI Jul 16, 01:15 UTCJul 16, 02:20 UTC1h 5m
2026-07-15 N3944Q - Jul 15, 20:55 UTCJul 15, 22:05 UTC1h 10m
2026-07-15 N3944Q COI → COI Jul 15, 15:30 UTCJul 15, 16:15 UTC45m
2026-07-15 N3944Q - Jul 15, 11:50 UTCJul 15, 13:40 UTC1h 50m
2026-07-14 N3944Q - Jul 14, 14:50 UTCJul 14, 15:55 UTC1h 5m
2026-07-13 N3944Q COI → COI Jul 13, 11:35 UTCJul 13, 13:05 UTC1h 30m
2026-07-12 N3944Q COI → COI Jul 12, 17:01 UTCJul 12, 18:01 UTC1h 0m
2026-07-12 N3944Q - Jul 12, 15:20 UTCJul 12, 15:40 UTC20m
2026-07-12 N3944Q - Jul 12, 13:25 UTCJul 12, 13:45 UTC20m
2026-07-12 N3944Q - Jul 12, 01:50 UTCJul 12, 03:15 UTC1h 25m
2026-07-11 N3944Q - Jul 11, 22:35 UTCJul 11, 23:50 UTC1h 15m
2026-07-11 N3944Q - Jul 11, 20:30 UTCJul 11, 21:45 UTC1h 15m
2026-07-11 N3944Q COI → COI Jul 11, 15:55 UTCJul 11, 18:20 UTC2h 25m
2026-07-11 N3944Q - Jul 11, 12:45 UTCJul 11, 14:25 UTC1h 40m
2026-07-11 N3944Q COI → COI Jul 11, 11:30 UTCJul 11, 11:55 UTC25m
2026-07-10 N3944Q COI → COI Jul 10, 20:15 UTCJul 10, 21:40 UTC1h 25m

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 N3944Q page for operator, model, and routing details .

Mode-S A49498 frequently asked

What is Mode-S code A49498?
A49498 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N3944Q.
Where is Mode-S A49498 registered?
Mode-S code A49498 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 A49498 broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A49498, octal 51112230, decimal 10,785,944.
What flights does A49498 operate?
Mode-S A49498 has broadcast 1 distinct callsign, including N3944Q.