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sensors Mode-S transponder

A6734E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N51446 · CESSNA 305/341 Bird Dog · operated by DECREEFT JOSEPH

Hex
A6734E
Octal
51471516
Decimal
10,908,494
Country
US
Tail
N51446
Type
O1
No current signal · last broadcast 9h ago
Flights observed
89
Distinct callsigns
1
Country
US
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S A6734E.

Country allocation

The ICAO 24-bit address A6734E 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
N51446 - 89 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-11 N51446 - Jul 11, 19:20 UTCJul 11, 23:20 UTC4h 0m
2026-07-10 N51446 - Jul 10, 20:15 UTCJul 10, 20:25 UTC10m
2026-07-09 N51446 - Jul 9, 18:20 UTCJul 9, 20:05 UTC1h 45m
2026-07-08 N51446 - Jul 8, 19:40 UTCJul 9, 00:05 UTC4h 25m
2026-07-07 N51446 - Jul 7, 21:00 UTCJul 7, 21:10 UTC10m
2026-07-07 N51446 - Jul 7, 18:10 UTCJul 7, 18:30 UTC20m
2026-07-05 N51446 - Jul 5, 17:55 UTCJul 5, 23:10 UTC5h 15m
2026-07-04 N51446 - Jul 4, 17:00 UTCJul 4, 17:10 UTC10m
2026-07-02 N51446 - Jul 2, 18:30 UTCJul 2, 18:40 UTC10m
2026-07-02 N51446 - Jul 2, 17:40 UTCJul 2, 18:00 UTC20m
2026-07-01 N51446 - Jul 1, 22:30 UTCJul 1, 23:00 UTC30m
2026-07-01 N51446 - Jul 1, 17:40 UTCJul 1, 18:30 UTC50m
2026-06-29 N51446 - Jun 29, 20:49 UTCJun 29, 21:54 UTC1h 5m
2026-06-26 N51446 HOM → HOM Jun 26, 11:55 UTCJun 26, 19:50 UTC7h 55m
2026-06-25 N51446 - Jun 25, 19:59 UTCJun 25, 20:25 UTC25m
2026-06-25 N51446 - Jun 25, 18:34 UTCJun 25, 18:50 UTC15m
2026-06-25 N51446 - Jun 25, 16:50 UTCJun 25, 17:09 UTC20m
2026-06-24 N51446 - Jun 24, 22:45 UTCJun 24, 23:20 UTC35m
2026-06-24 N51446 - Jun 24, 21:44 UTCJun 24, 22:04 UTC20m
2026-06-24 N51446 - Jun 24, 17:05 UTCJun 24, 18:15 UTC1h 10m
2026-06-22 N51446 - Jun 22, 21:05 UTCJun 23, 01:54 UTC4h 50m
2026-06-19 N51446 - Jun 19, 20:04 UTCJun 19, 21:09 UTC1h 5m
2026-06-19 N51446 - Jun 19, 13:29 UTCJun 19, 18:59 UTC5h 30m
2026-06-17 N51446 - Jun 17, 00:40 UTCJun 17, 01:40 UTC1h 0m
2026-06-16 N51446 - Jun 16, 17:15 UTCJun 16, 19:15 UTC2h 0m
2026-06-16 N51446 - Jun 16, 16:15 UTCJun 16, 16:35 UTC20m
2026-06-15 N51446 - Jun 15, 17:54 UTCJun 15, 22:45 UTC4h 50m
2026-06-13 N51446 - Jun 13, 00:35 UTCJun 13, 01:40 UTC1h 5m
2026-06-10 N51446 - Jun 10, 16:35 UTCJun 10, 17:05 UTC30m
2026-06-09 N51446 - Jun 9, 18:35 UTCJun 9, 19:00 UTC25m
2026-06-08 N51446 - Jun 8, 20:00 UTCJun 8, 20:20 UTC20m
2026-06-08 N51446 - Jun 8, 19:05 UTCJun 8, 19:20 UTC15m
2026-06-07 N51446 - Jun 7, 13:30 UTCJun 7, 17:55 UTC4h 25m
2026-06-05 N51446 - Jun 5, 22:50 UTCJun 6, 01:55 UTC3h 5m
2026-06-05 N51446 - Jun 5, 17:05 UTCJun 5, 17:55 UTC50m
2026-06-04 N51446 - Jun 4, 17:35 UTCJun 4, 20:20 UTC2h 45m
2026-06-03 N51446 - Jun 3, 12:55 UTCJun 3, 18:40 UTC5h 45m
2026-06-03 N51446 - Jun 3, 02:00 UTCJun 3, 02:45 UTC45m
2026-06-03 N51446 - Jun 3, 00:15 UTCJun 3, 00:45 UTC30m
2026-06-02 N51446 - Jun 2, 17:40 UTCJun 2, 18:45 UTC1h 5m
2026-05-31 N51446 - May 31, 16:00 UTCJun 1, 01:45 UTC9h 45m
2026-05-30 N51446 - May 30, 19:35 UTCMay 31, 01:11 UTC5h 36m
2026-05-30 N51446 - May 30, 17:00 UTCMay 30, 19:05 UTC2h 5m
2026-05-29 N51446 - May 29, 23:50 UTCMay 30, 01:30 UTC1h 40m
2026-05-29 N51446 - May 29, 15:10 UTCMay 29, 23:15 UTC8h 5m
2026-05-28 N51446 - May 28, 23:05 UTCMay 29, 01:20 UTC2h 15m
2026-05-28 N51446 - May 28, 15:15 UTCMay 28, 22:25 UTC7h 10m
2026-05-27 N51446 - May 27, 17:30 UTCMay 28, 00:20 UTC6h 50m
2026-05-26 N51446 - May 26, 18:34 UTCMay 26, 23:49 UTC5h 15m
2026-05-25 N51446 - May 25, 22:05 UTCMay 26, 02:10 UTC4h 5m

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 N51446 page for operator, model, and routing details .

Mode-S A6734E frequently asked

What is Mode-S code A6734E?
A6734E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N51446.
Where is Mode-S A6734E registered?
Mode-S code A6734E 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 A6734E broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6734E, octal 51471516, decimal 10,908,494.
What flights does A6734E operate?
Mode-S A6734E has broadcast 1 distinct callsign, including N51446.