Apparatus

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sensors Mode-S transponder

A68653

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N5198E · CESSNA 172 Skyhawk · operated by M & D FLIGHT SCHOOL INC

Hex
A68653
Octal
51503123
Decimal
10,913,363
Country
US
Tail
N5198E
Type
C172
No current signal · last broadcast 11h ago
Flights observed
51
Distinct callsigns
1
Country
US
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S A68653.

Country allocation

The ICAO 24-bit address A68653 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
N5198E - 51 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 N5198E TMB → TMB Jul 13, 21:20 UTCJul 13, 22:10 UTC50m
2026-07-13 N5198E TMB → TMB Jul 13, 17:05 UTCJul 13, 18:00 UTC55m
2026-07-13 N5198E - Jul 13, 15:15 UTCJul 13, 16:00 UTC45m
2026-07-13 N5198E TMB → TMB Jul 13, 11:00 UTCJul 13, 12:20 UTC1h 20m
2026-07-12 N5198E TMB → TMB Jul 12, 16:50 UTCJul 12, 18:15 UTC1h 25m
2026-07-12 N5198E TMB → TMB Jul 12, 15:35 UTCJul 12, 16:10 UTC35m
2026-07-12 N5198E TMB → TMB Jul 12, 11:05 UTCJul 12, 14:35 UTC3h 30m
2026-07-11 N5198E TMB → TMB Jul 11, 17:35 UTCJul 11, 18:10 UTC35m
2026-07-10 N5198E TMB → TMB Jul 10, 17:50 UTCJul 10, 18:20 UTC30m
2026-07-10 N5198E TMB → TMB Jul 10, 15:05 UTCJul 10, 16:30 UTC1h 25m
2026-07-10 N5198E TMB → TMB Jul 10, 13:05 UTCJul 10, 14:00 UTC55m
2026-07-09 N5198E TMB → TMB Jul 9, 17:15 UTCJul 9, 18:10 UTC55m
2026-07-09 N5198E - Jul 9, 15:25 UTCJul 9, 16:05 UTC40m
2026-07-09 N5198E - Jul 9, 13:45 UTCJul 9, 14:25 UTC40m
2026-07-09 N5198E TMB → TMB Jul 9, 11:20 UTCJul 9, 12:35 UTC1h 15m
2026-07-08 N5198E - Jul 8, 23:35 UTCJul 9, 00:20 UTC45m
2026-07-08 N5198E - Jul 8, 17:45 UTCJul 8, 18:30 UTC45m
2026-07-08 N5198E TMB → TMB Jul 8, 15:35 UTCJul 8, 16:30 UTC55m
2026-07-08 N5198E - Jul 8, 13:15 UTCJul 8, 14:20 UTC1h 5m
2026-07-08 N5198E - Jul 8, 11:30 UTCJul 8, 12:25 UTC55m
2026-07-07 N5198E TMB → TMB Jul 7, 15:25 UTCJul 7, 16:25 UTC1h 0m
2026-07-07 N5198E TMB → TMB Jul 7, 13:25 UTCJul 7, 14:15 UTC50m
2026-07-07 N5198E TMB → TMB Jul 7, 11:10 UTCJul 7, 12:10 UTC1h 0m
2026-07-06 N5198E TMB → TMB Jul 6, 13:25 UTCJul 6, 14:20 UTC55m
2026-07-06 N5198E - Jul 6, 11:30 UTCJul 6, 12:20 UTC50m
2026-07-04 N5198E TMB → TMB Jul 4, 15:15 UTCJul 4, 16:20 UTC1h 5m
2026-07-04 N5198E TMB → TMB Jul 4, 13:00 UTCJul 4, 14:15 UTC1h 15m
2026-07-04 N5198E TMB → TMB Jul 4, 10:25 UTCJul 4, 11:15 UTC50m
2026-07-03 N5198E TMB → TMB Jul 3, 15:35 UTCJul 3, 16:25 UTC50m
2026-07-03 N5198E TMB → TMB Jul 3, 13:30 UTCJul 3, 14:15 UTC45m
2026-07-03 N5198E TMB → TMB Jul 3, 11:35 UTCJul 3, 12:25 UTC50m
2026-07-03 N5198E TMB → TMB Jul 3, 00:50 UTCJul 3, 01:15 UTC25m
2026-04-15 N5198E TMB → TMB Apr 15, 17:20 UTCApr 15, 18:05 UTC45m
2026-04-15 N5198E - Apr 15, 11:50 UTCApr 15, 12:01 UTC10m
2026-04-15 N5198E - Apr 15, 11:20 UTCApr 15, 11:45 UTC25m
2026-04-15 N5198E - Apr 15, 11:05 UTCApr 15, 11:15 UTC10m
2026-04-15 N5198E TMB → TMB Apr 15, 01:05 UTCApr 15, 02:40 UTC1h 35m
2026-04-14 N5198E TMB → TMB Apr 14, 21:35 UTCApr 14, 22:15 UTC40m
2026-04-14 N5198E TMB → TMB Apr 14, 19:35 UTCApr 14, 20:15 UTC40m
2026-04-14 N5198E - Apr 14, 16:10 UTCApr 14, 16:20 UTC10m
2026-04-14 N5198E - Apr 14, 15:20 UTCApr 14, 15:30 UTC10m
2026-04-14 N5198E TMB → TMB Apr 14, 12:50 UTCApr 14, 13:35 UTC45m
2026-04-14 N5198E - Apr 14, 12:00 UTCApr 14, 12:45 UTC45m
2026-04-13 N5198E TMB → TMB Apr 13, 21:45 UTCApr 13, 22:45 UTC1h 0m
2026-04-13 N5198E - Apr 13, 17:45 UTCApr 13, 18:35 UTC50m
2026-04-13 N5198E - Apr 13, 16:15 UTCApr 13, 16:30 UTC15m
2026-04-13 N5198E - Apr 13, 15:50 UTCApr 13, 16:30 UTC40m
2026-04-13 N5198E - Apr 13, 15:30 UTCApr 13, 16:15 UTC45m
2026-04-13 N5198E TMB → TMB Apr 13, 13:20 UTCApr 13, 14:20 UTC1h 0m
2026-04-13 N5198E TMB → TMB Apr 13, 11:55 UTCApr 13, 12:20 UTC25m

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 N5198E page for operator, model, and routing details .

Mode-S A68653 frequently asked

What is Mode-S code A68653?
A68653 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N5198E.
Where is Mode-S A68653 registered?
Mode-S code A68653 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 A68653 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A68653, octal 51503123, decimal 10,913,363.
What flights does A68653 operate?
Mode-S A68653 has broadcast 1 distinct callsign, including N5198E.