Apparatus

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sensors Mode-S transponder

A43B5A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N372BH · CESSNA 172 Skyhawk · operated by LEWIS UNIVERSITY

Hex
A43B5A
Octal
51035532
Decimal
10,763,098
Country
US
Tail
N372BH
Type
C172
Broadcasting now · callsign N372BH · 900 ft
Flights observed
189
Distinct callsigns
1
Country
US
Last broadcast
Jul 23, 05:35 UTC

Current position

A43B5A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A43B5A 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
N372BH - 189 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 N372BH - Jul 23, 02:40 UTCJul 23, 05:35 UTC2h 55m
2026-07-22 N372BH - Jul 22, 23:15 UTCJul 23, 00:35 UTC1h 20m
2026-07-22 N372BH LOT → LOT Jul 22, 20:25 UTCJul 22, 21:45 UTC1h 20m
2026-07-22 N372BH - Jul 22, 16:50 UTCJul 22, 17:50 UTC1h 0m
2026-07-22 N372BH - Jul 22, 14:50 UTCJul 22, 15:45 UTC55m
2026-07-22 N372BH - Jul 22, 12:45 UTCJul 22, 14:15 UTC1h 30m
2026-07-22 N372BH - Jul 22, 02:45 UTCJul 22, 05:00 UTC2h 15m
2026-07-21 N372BH - Jul 21, 23:05 UTCJul 22, 00:55 UTC1h 50m
2026-07-21 N372BH LOT → LOT Jul 21, 20:40 UTCJul 21, 22:05 UTC1h 25m
2026-07-21 N372BH - Jul 21, 18:45 UTCJul 21, 19:30 UTC45m
2026-07-21 N372BH LOT → LOT Jul 21, 16:40 UTCJul 21, 17:30 UTC50m
2026-07-21 N372BH - Jul 21, 14:20 UTCJul 21, 15:35 UTC1h 15m
2026-07-16 N372BH - Jul 16, 02:30 UTCJul 16, 04:00 UTC1h 30m
2026-07-15 N372BH - Jul 15, 20:30 UTCJul 15, 21:50 UTC1h 20m
2026-07-15 N372BH - Jul 15, 14:45 UTCJul 15, 15:55 UTC1h 10m
2026-07-14 N372BH - Jul 14, 16:15 UTCJul 14, 17:30 UTC1h 15m
2026-07-14 N372BH LOT → LOT Jul 14, 12:20 UTCJul 14, 13:35 UTC1h 15m
2026-07-14 N372BH LOT → LOT Jul 14, 02:50 UTCJul 14, 03:15 UTC25m
2026-07-14 N372BH LOT → LOT Jul 14, 00:30 UTCJul 14, 01:35 UTC1h 5m
2026-07-13 N372BH - Jul 13, 22:10 UTCJul 13, 22:25 UTC15m
2026-07-13 N372BH - Jul 13, 20:25 UTCJul 13, 21:35 UTC1h 10m
2026-07-13 N372BH - Jul 13, 18:35 UTCJul 13, 19:35 UTC1h 0m
2026-07-13 N372BH LOT → LOT Jul 13, 14:15 UTCJul 13, 15:55 UTC1h 40m
2026-07-09 N372BH - Jul 9, 16:50 UTCJul 9, 17:30 UTC40m
2026-06-30 N372BH LOT → LOT Jun 30, 18:30 UTCJun 30, 19:15 UTC45m
2026-06-30 N372BH LOT → LOT Jun 30, 14:30 UTCJun 30, 15:05 UTC35m
2026-06-30 N372BH - Jun 30, 12:30 UTCJun 30, 13:35 UTC1h 5m
2026-06-30 N372BH - Jun 30, 02:40 UTCJun 30, 04:05 UTC1h 25m
2026-06-30 N372BH LOT → LOT Jun 30, 00:49 UTCJun 30, 01:19 UTC30m
2026-06-29 N372BH - Jun 29, 20:59 UTCJun 29, 22:15 UTC1h 15m
2026-06-29 N372BH LOT → LOT Jun 29, 18:25 UTCJun 29, 19:05 UTC40m
2026-06-29 N372BH - Jun 29, 16:19 UTCJun 29, 17:14 UTC55m
2026-06-29 N372BH LOT → LOT Jun 29, 12:20 UTCJun 29, 12:45 UTC25m
2026-06-27 N372BH LOT → LOT Jun 27, 02:29 UTCJun 27, 03:40 UTC1h 10m
2026-06-26 N372BH LOT → LOT Jun 26, 22:55 UTCJun 27, 00:10 UTC1h 15m
2026-06-26 N372BH LOT → LOT Jun 26, 18:44 UTCJun 26, 19:45 UTC1h 0m
2026-06-26 N372BH LOT → LOT Jun 26, 16:20 UTCJun 26, 17:29 UTC1h 10m
2026-06-25 N372BH - Jun 25, 23:34 UTCJun 26, 00:30 UTC55m
2026-06-25 N372BH - Jun 25, 21:10 UTCJun 25, 22:45 UTC1h 35m
2026-06-25 N372BH LOT → LOT Jun 25, 18:34 UTCJun 25, 19:29 UTC55m
2026-06-25 N372BH - Jun 25, 16:39 UTCJun 25, 17:44 UTC1h 5m
2026-06-25 N372BH LOT → LOT Jun 25, 14:04 UTCJun 25, 14:55 UTC50m
2026-06-24 N372BH - Jun 24, 16:29 UTCJun 24, 17:34 UTC1h 5m
2026-06-24 N372BH - Jun 24, 12:14 UTCJun 24, 13:34 UTC1h 20m
2026-06-24 N372BH - Jun 24, 02:20 UTCJun 24, 03:44 UTC1h 25m
2026-06-23 N372BH LEX → LOT Jun 23, 22:19 UTCJun 24, 01:04 UTC2h 45m
2026-06-23 N372BH - Jun 23, 18:55 UTCJun 23, 21:10 UTC2h 15m
2026-06-23 N372BH - Jun 23, 17:04 UTCJun 23, 17:54 UTC50m
2026-06-23 N372BH - Jun 23, 14:25 UTCJun 23, 15:34 UTC1h 10m
2026-06-23 N372BH - Jun 23, 12:49 UTCJun 23, 13:24 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 N372BH page for operator, model, and routing details .

Mode-S A43B5A frequently asked

What is Mode-S code A43B5A?
A43B5A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N372BH.
Where is Mode-S A43B5A registered?
Mode-S code A43B5A 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 A43B5A broadcasting right now?
Yes. Mode-S A43B5A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A43B5A, octal 51035532, decimal 10,763,098.
What flights does A43B5A operate?
Mode-S A43B5A has broadcast 1 distinct callsign, including N372BH.