Apparatus

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sensors Mode-S transponder

A5A37D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N46203 · CESSNA 172 Skyhawk · operated by AVIAN LEASING LLC

Hex
A5A37D
Octal
51321575
Decimal
10,855,293
Country
US
Tail
N46203
Type
C172
No current signal · last broadcast 2d ago
Flights observed
232
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A5A37D.

Country allocation

The ICAO 24-bit address A5A37D 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
N46203 - 232 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N46203 PWT → PWT Jul 26, 00:40 UTCJul 26, 02:30 UTC1h 50m
2026-07-25 N46203 - Jul 25, 21:45 UTCJul 25, 22:40 UTC55m
2026-07-25 N46203 PWT → PWT Jul 25, 20:15 UTCJul 25, 20:40 UTC25m
2026-07-25 N46203 PWT → PWT Jul 25, 18:55 UTCJul 25, 19:25 UTC30m
2026-07-25 N46203 TIW → PWT Jul 25, 01:45 UTCJul 25, 02:05 UTC20m
2026-07-24 N46203 - Jul 24, 23:45 UTCJul 25, 00:45 UTC1h 0m
2026-07-24 N46203 - Jul 24, 22:20 UTCJul 24, 22:30 UTC10m
2026-07-24 N46203 OLM → PWT Jul 24, 02:05 UTCJul 24, 04:00 UTC1h 55m
2026-07-24 N46203 - Jul 24, 01:05 UTCJul 24, 01:25 UTC20m
2026-07-23 N46203 PWT → PWT Jul 23, 02:40 UTCJul 23, 03:25 UTC45m
2026-07-23 N46203 - Jul 23, 00:55 UTCJul 23, 01:35 UTC40m
2026-07-22 N46203 - Jul 22, 23:10 UTCJul 23, 00:00 UTC50m
2026-07-22 N46203 - Jul 22, 19:10 UTCJul 22, 20:15 UTC1h 5m
2026-07-22 N46203 - Jul 22, 17:15 UTCJul 22, 18:25 UTC1h 10m
2026-07-22 N46203 PWT → PWT Jul 22, 01:55 UTCJul 22, 02:35 UTC40m
2026-07-21 N46203 - Jul 21, 23:45 UTCJul 22, 00:55 UTC1h 10m
2026-07-21 N46203 PWT → PWT Jul 21, 22:05 UTCJul 21, 22:50 UTC45m
2026-07-21 N46203 - Jul 21, 20:10 UTCJul 21, 21:10 UTC1h 0m
2026-07-21 N46203 - Jul 21, 18:35 UTCJul 21, 19:20 UTC45m
2026-07-21 N46203 - Jul 21, 16:35 UTCJul 21, 17:30 UTC55m
2026-07-21 N46203 - Jul 21, 01:45 UTCJul 21, 02:50 UTC1h 5m
2026-07-21 N46203 - Jul 21, 00:20 UTCJul 21, 01:00 UTC40m
2026-07-20 N46203 - Jul 20, 21:15 UTCJul 20, 22:45 UTC1h 30m
2026-07-20 N46203 - Jul 20, 18:05 UTCJul 20, 19:15 UTC1h 10m
2026-07-19 N46203 - Jul 19, 23:40 UTCJul 20, 00:30 UTC50m
2026-07-19 N46203 - Jul 19, 21:05 UTCJul 19, 22:10 UTC1h 5m
2026-07-19 N46203 - Jul 19, 18:30 UTCJul 19, 19:40 UTC1h 10m
2026-07-19 N46203 PWT → PWT Jul 19, 16:55 UTCJul 19, 17:25 UTC30m
2026-07-19 N46203 PWT → PWT Jul 19, 03:15 UTCJul 19, 04:15 UTC1h 0m
2026-07-19 N46203 - Jul 19, 00:10 UTCJul 19, 01:40 UTC1h 30m
2026-07-18 N46203 PWT → PWT Jul 18, 21:40 UTCJul 18, 23:10 UTC1h 30m
2026-07-18 N46203 PWT → PWT Jul 18, 03:45 UTCJul 18, 04:40 UTC55m
2026-07-18 N46203 PWT → PWT Jul 18, 01:50 UTCJul 18, 02:50 UTC1h 1m
2026-07-17 N46203 - Jul 17, 23:00 UTCJul 18, 00:39 UTC1h 40m
2026-07-17 N46203 - Jul 17, 20:25 UTCJul 17, 21:50 UTC1h 25m
2026-07-17 N46203 - Jul 17, 17:50 UTCJul 17, 18:40 UTC50m
2026-07-17 N46203 PWT → PWT Jul 17, 15:40 UTCJul 17, 16:49 UTC1h 10m
2026-07-15 N46203 - Jul 15, 21:40 UTCJul 15, 22:30 UTC50m
2026-07-15 N46203 PWT → PWT Jul 15, 20:10 UTCJul 15, 20:40 UTC30m
2026-07-13 N46203 PWT → PWT Jul 13, 03:55 UTCJul 13, 04:30 UTC35m
2026-07-10 N46203 PWT → PWT Jul 10, 18:00 UTCJul 10, 19:00 UTC1h 0m
2026-07-10 N46203 - Jul 10, 06:10 UTCJul 10, 08:10 UTC2h 0m
2026-07-10 N46203 - Jul 10, 03:50 UTCJul 10, 04:35 UTC45m
2026-07-10 N46203 - Jul 10, 00:45 UTCJul 10, 02:40 UTC1h 55m
2026-07-09 N46203 - Jul 9, 18:15 UTCJul 9, 20:05 UTC1h 50m
2026-07-09 N46203 - Jul 9, 16:00 UTCJul 9, 16:55 UTC55m
2026-07-09 N46203 PWT → PWT Jul 9, 03:40 UTCJul 9, 04:15 UTC35m
2026-07-08 N46203 PWT → PWT Jul 8, 04:10 UTCJul 8, 04:35 UTC25m
2026-07-08 N46203 PWT → PWT Jul 8, 03:00 UTCJul 8, 03:35 UTC35m
2026-07-08 N46203 - Jul 8, 01:20 UTCJul 8, 02:20 UTC1h 0m

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 N46203 page for operator, model, and routing details .

Mode-S A5A37D frequently asked

What is Mode-S code A5A37D?
A5A37D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N46203.
Where is Mode-S A5A37D registered?
Mode-S code A5A37D 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 A5A37D broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5A37D, octal 51321575, decimal 10,855,293.
What flights does A5A37D operate?
Mode-S A5A37D has broadcast 1 distinct callsign, including N46203.