Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A23B30

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N243AM · BEECH 200 Super King Air · operated by AIRMED INTERNATIONAL LLC

Hex
A23B30
Octal
50435460
Decimal
10,631,984
Country
US
Tail
N243AM
Type
BE20
No current signal · last broadcast Jul 25, 09:00 UTC
Flights observed
68
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 09:00 UTC

Last known position

Most recent position reported by Mode-S A23B30.

Country allocation

The ICAO 24-bit address A23B30 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
N243AM - 68 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 N243AM - Jul 25, 08:05 UTCJul 25, 09:00 UTC55m
2026-07-25 N243AM - Jul 25, 05:25 UTCJul 25, 06:25 UTC1h 0m
2026-07-24 N243AM - Jul 24, 09:55 UTCJul 24, 11:10 UTC1h 15m
2026-07-24 N243AM - Jul 24, 06:35 UTCJul 24, 08:20 UTC1h 45m
2026-07-24 N243AM - Jul 24, 03:05 UTCJul 24, 03:55 UTC50m
2026-07-23 N243AM - Jul 23, 10:10 UTCJul 23, 11:05 UTC55m
2026-07-23 N243AM - Jul 23, 06:50 UTCJul 23, 07:35 UTC45m
2026-07-21 N243AM - Jul 21, 20:10 UTCJul 21, 21:10 UTC1h 0m
2026-07-21 N243AM - Jul 21, 16:10 UTCJul 21, 17:30 UTC1h 20m
2026-07-21 N243AM - Jul 21, 13:15 UTCJul 21, 13:50 UTC35m
2026-07-21 N243AM - Jul 21, 05:35 UTCJul 21, 06:25 UTC50m
2026-07-21 N243AM - Jul 21, 01:45 UTCJul 21, 02:45 UTC1h 0m
2026-07-18 N243AM - Jul 18, 22:25 UTCJul 18, 23:10 UTC45m
2026-07-18 N243AM - Jul 18, 19:20 UTCJul 18, 20:05 UTC45m
2026-07-17 N243AM - Jul 17, 15:49 UTCJul 17, 16:29 UTC40m
2026-07-17 N243AM - Jul 17, 12:55 UTCJul 17, 13:35 UTC40m
2026-07-16 N243AM - Jul 16, 16:35 UTCJul 16, 17:10 UTC35m
2026-07-16 N243AM - Jul 16, 13:30 UTCJul 16, 14:15 UTC45m
2026-07-07 N243AM - Jul 7, 23:55 UTCJul 8, 00:55 UTC1h 0m
2026-07-07 N243AM - Jul 7, 20:05 UTCJul 7, 21:10 UTC1h 5m
2026-07-07 N243AM - Jul 7, 16:30 UTCJul 7, 17:10 UTC40m
2026-07-03 N243AM - Jul 3, 06:40 UTCJul 3, 07:25 UTC45m
2026-07-03 N243AM - Jul 3, 03:10 UTCJul 3, 04:10 UTC1h 0m
2026-07-03 N243AM - Jul 3, 00:35 UTCJul 3, 01:20 UTC45m
2026-07-02 N243AM - Jul 2, 09:00 UTCJul 2, 09:50 UTC50m
2026-07-02 N243AM - Jul 2, 05:50 UTCJul 2, 06:41 UTC51m
2026-06-26 N243AM - Jun 26, 09:39 UTCJun 26, 10:30 UTC50m
2026-06-26 N243AM - Jun 26, 07:00 UTCJun 26, 08:05 UTC1h 5m
2026-06-26 N243AM - Jun 26, 05:35 UTCJun 26, 06:25 UTC50m
2026-06-25 N243AM - Jun 25, 04:45 UTCJun 25, 05:35 UTC50m
2026-06-25 N243AM - Jun 25, 02:10 UTCJun 25, 02:49 UTC40m
2026-06-17 N243AM - Jun 17, 05:20 UTCJun 17, 07:00 UTC1h 40m
2026-06-17 N243AM - Jun 17, 01:25 UTCJun 17, 03:10 UTC1h 45m
2026-06-16 N243AM - Jun 16, 16:10 UTCJun 16, 17:10 UTC1h 0m
2026-06-16 N243AM - Jun 16, 13:19 UTCJun 16, 14:09 UTC50m
2026-06-13 N243AM - Jun 13, 23:30 UTCJun 13, 23:55 UTC25m
2026-06-13 N243AM - Jun 13, 19:10 UTCJun 13, 20:50 UTC1h 40m
2026-06-13 N243AM - Jun 13, 14:35 UTCJun 13, 16:25 UTC1h 50m
2026-06-13 N243AM - Jun 13, 13:05 UTCJun 13, 13:25 UTC20m
2026-06-11 N243AM - Jun 11, 18:25 UTCJun 11, 21:05 UTC2h 40m
2026-06-11 N243AM - Jun 11, 16:05 UTCJun 11, 16:35 UTC30m
2026-06-11 N243AM - Jun 11, 10:55 UTCJun 11, 13:25 UTC2h 30m
2026-06-04 N243AM - Jun 4, 06:30 UTCJun 4, 07:50 UTC1h 20m
2026-06-04 N243AM - Jun 4, 04:00 UTCJun 4, 05:00 UTC1h 0m
2026-06-04 N243AM - Jun 4, 01:20 UTCJun 4, 02:15 UTC55m
2026-06-03 N243AM - Jun 3, 07:35 UTCJun 3, 07:55 UTC20m
2026-06-03 N243AM - Jun 3, 04:55 UTCJun 3, 05:30 UTC35m
2026-06-03 N243AM - Jun 3, 01:50 UTCJun 3, 02:20 UTC30m
2026-05-29 N243AM - May 29, 08:30 UTCMay 29, 09:20 UTC50m
2026-05-29 N243AM - May 29, 05:20 UTCMay 29, 06:05 UTC45m

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 N243AM page for operator, model, and routing details .

Mode-S A23B30 frequently asked

What is Mode-S code A23B30?
A23B30 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N243AM.
Where is Mode-S A23B30 registered?
Mode-S code A23B30 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 A23B30 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 09:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A23B30, octal 50435460, decimal 10,631,984.
What flights does A23B30 operate?
Mode-S A23B30 has broadcast 1 distinct callsign, including N243AM.