Apparatus

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sensors Mode-S transponder

A61644

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N49104 · CESSNA 152 · operated by JPRG AVIATION INC DBA, ORLANDO FLIGHT SCHOOL

Hex
A61644
Octal
51413104
Decimal
10,884,676
Country
US
Tail
N49104
Type
C152
No current signal · last broadcast 13h ago
Flights observed
53
Distinct callsigns
1
Country
US
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S A61644.

Country allocation

The ICAO 24-bit address A61644 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
N49104 - 53 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N49104 ORL → ORL Jul 14, 15:35 UTCJul 14, 16:15 UTC40m
2026-07-11 N49104 - Jul 11, 19:45 UTCJul 11, 20:35 UTC50m
2026-07-11 N49104 - Jul 11, 18:10 UTCJul 11, 18:50 UTC40m
2026-07-09 N49104 ORL → ORL Jul 9, 13:05 UTCJul 9, 14:55 UTC1h 50m
2026-07-07 N49104 ORL → ORL Jul 7, 16:05 UTCJul 7, 16:50 UTC45m
2026-07-07 N49104 ORL → ORL Jul 7, 11:45 UTCJul 7, 12:40 UTC55m
2026-07-06 N49104 ORL → ORL Jul 6, 14:15 UTCJul 6, 15:10 UTC55m
2026-07-03 N49104 ORL → ORL Jul 3, 20:00 UTCJul 3, 20:35 UTC35m
2026-06-28 N49104 ORL → ORL Jun 28, 13:55 UTCJun 28, 14:34 UTC40m
2026-06-27 N49104 ORL → ORL Jun 27, 18:35 UTCJun 27, 19:05 UTC30m
2026-06-27 N49104 ORL → ORL Jun 27, 14:14 UTCJun 27, 15:55 UTC1h 40m
2026-06-25 N49104 ORL → ORL Jun 25, 14:14 UTCJun 25, 14:59 UTC45m
2026-06-21 N49104 - Jun 21, 16:44 UTCJun 21, 16:59 UTC15m
2026-06-19 N49104 - Jun 19, 17:39 UTCJun 19, 17:49 UTC10m
2026-06-18 N49104 ORL → ORL Jun 18, 11:15 UTCJun 18, 13:10 UTC1h 55m
2026-06-16 N49104 ORL → ORL Jun 16, 11:49 UTCJun 16, 12:35 UTC45m
2026-06-14 N49104 ORL → ORL Jun 14, 12:05 UTCJun 14, 12:45 UTC40m
2026-06-13 N49104 ORL → ORL Jun 13, 12:05 UTCJun 13, 12:45 UTC40m
2026-06-12 N49104 ORL → ORL Jun 12, 12:30 UTCJun 12, 12:40 UTC10m
2026-06-12 N49104 - Jun 12, 12:15 UTCJun 12, 12:25 UTC10m
2026-06-12 N49104 ORL → ORL Jun 12, 12:05 UTCJun 12, 12:10 UTC5m
2026-06-11 N49104 ORL → ORL Jun 11, 12:15 UTCJun 11, 12:20 UTC5m
2026-06-11 N49104 ORL → ORL Jun 11, 11:35 UTCJun 11, 12:00 UTC25m
2026-06-08 N49104 ORL → ORL Jun 8, 12:20 UTCJun 8, 13:00 UTC40m
2026-06-01 N49104 ORL → ORL Jun 1, 13:05 UTCJun 1, 13:25 UTC20m
2026-05-29 N49104 ORL → ORL May 29, 13:35 UTCMay 29, 15:15 UTC1h 40m
2026-05-26 N49104 ORL → ORL May 26, 11:30 UTCMay 26, 11:34 UTC5m
2026-05-25 N49104 ORL → ORL May 25, 14:00 UTCMay 25, 15:00 UTC1h 0m
2026-05-23 N49104 ORL → ORL May 23, 14:00 UTCMay 23, 14:40 UTC40m
2026-05-23 N49104 ORL → ORL May 23, 11:40 UTCMay 23, 11:50 UTC10m
2026-05-23 N49104 ORL → ORL May 23, 11:15 UTCMay 23, 11:25 UTC10m
2026-05-22 N49104 ORL → ORL May 22, 12:20 UTCMay 22, 12:25 UTC5m
2026-05-22 N49104 ORL → ORL May 22, 11:55 UTCMay 22, 12:15 UTC20m
2026-05-21 N49104 ORL → ORL May 21, 16:25 UTCMay 21, 17:05 UTC40m
2026-05-20 N49104 ORL → ORL May 20, 23:05 UTCMay 20, 23:50 UTC45m
2026-05-19 N49104 ORL → ORL May 19, 22:20 UTCMay 19, 22:45 UTC25m
2026-05-19 N49104 - May 19, 15:35 UTCMay 19, 15:55 UTC20m
2026-05-16 N49104 - May 16, 13:51 UTCMay 16, 14:31 UTC40m
2026-05-10 N49104 - May 10, 15:45 UTCMay 10, 16:25 UTC40m
2026-05-01 N49104 - May 1, 14:20 UTCMay 1, 16:05 UTC1h 45m
2026-04-28 N49104 ISM → ISM Apr 28, 17:55 UTCApr 28, 18:20 UTC25m
2026-04-27 N49104 ORL → ISM Apr 27, 22:45 UTCApr 27, 23:00 UTC15m
2026-04-27 N49104 LAL → ORL Apr 27, 21:25 UTCApr 27, 22:10 UTC45m
2026-04-27 N49104 - Apr 27, 20:05 UTCApr 27, 20:30 UTC25m
2026-04-25 N49104 - Apr 25, 16:30 UTCApr 25, 17:10 UTC40m
2026-04-25 N49104 ISM → ISM Apr 25, 14:45 UTCApr 25, 15:00 UTC15m
2026-04-25 N49104 ISM → ISM Apr 25, 11:55 UTCApr 25, 13:00 UTC1h 5m
2026-04-24 N49104 - Apr 24, 21:40 UTCApr 24, 22:50 UTC1h 10m
2026-04-22 N49104 - Apr 22, 18:20 UTCApr 22, 18:45 UTC25m
2026-04-22 N49104 - Apr 22, 17:05 UTCApr 22, 17:40 UTC35m

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 N49104 page for operator, model, and routing details .

Mode-S A61644 frequently asked

What is Mode-S code A61644?
A61644 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N49104.
Where is Mode-S A61644 registered?
Mode-S code A61644 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 A61644 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A61644, octal 51413104, decimal 10,884,676.
What flights does A61644 operate?
Mode-S A61644 has broadcast 1 distinct callsign, including N49104.