Apparatus

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sensors Mode-S transponder

A23563

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N241TD · operated by AVIATION FINANCIAL CORP

Hex
A23563
Octal
50432543
Decimal
10,630,499
Country
US
Tail
N241TD
Type
SLG2
No current signal · last broadcast Jul 25, 22:35 UTC
Flights observed
159
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 22:35 UTC

Last known position

Most recent position reported by Mode-S A23563.

Country allocation

The ICAO 24-bit address A23563 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
N241TD - 159 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 N241TD SEE → SEE Jul 25, 21:35 UTCJul 25, 22:35 UTC1h 0m
2026-07-25 N241TD - Jul 25, 00:55 UTCJul 25, 01:45 UTC50m
2026-07-24 N241TD SEE → RAL Jul 24, 23:45 UTCJul 25, 00:50 UTC1h 5m
2026-07-24 N241TD SEE → SEE Jul 24, 18:50 UTCJul 24, 20:05 UTC1h 15m
2026-07-24 N241TD SEE → SEE Jul 24, 16:35 UTCJul 24, 17:35 UTC1h 0m
2026-07-23 N241TD SEE → SEE Jul 23, 21:20 UTCJul 23, 22:10 UTC50m
2026-07-23 N241TD SEE → SEE Jul 23, 19:00 UTCJul 23, 19:45 UTC45m
2026-07-23 N241TD SEE → SEE Jul 23, 17:20 UTCJul 23, 18:15 UTC55m
2026-07-23 N241TD SEE → SEE Jul 23, 14:40 UTCJul 23, 15:35 UTC55m
2026-07-22 N241TD SEE → SEE Jul 22, 23:45 UTCJul 23, 00:35 UTC50m
2026-07-22 N241TD SEE → SEE Jul 22, 20:30 UTCJul 22, 21:50 UTC1h 20m
2026-07-22 N241TD - Jul 22, 16:50 UTCJul 22, 17:55 UTC1h 5m
2026-07-21 N241TD SEE → SEE Jul 21, 18:20 UTCJul 21, 19:10 UTC50m
2026-07-21 N241TD SEE → SEE Jul 21, 17:05 UTCJul 21, 17:40 UTC35m
2026-07-21 N241TD SEE → SEE Jul 21, 00:35 UTCJul 21, 01:55 UTC1h 20m
2026-07-17 N241TD - Jul 17, 21:50 UTCJul 17, 22:10 UTC20m
2026-07-17 N241TD - Jul 17, 15:29 UTCJul 17, 16:40 UTC1h 10m
2026-07-16 N241TD SEE → SEE Jul 16, 20:05 UTCJul 16, 21:10 UTC1h 5m
2026-07-16 N241TD SEE → SEE Jul 16, 15:05 UTCJul 16, 15:25 UTC20m
2026-07-15 N241TD - Jul 15, 22:10 UTCJul 15, 23:05 UTC55m
2026-07-15 N241TD HMT → SBD Jul 15, 19:05 UTCJul 15, 22:00 UTC2h 55m
2026-07-15 N241TD - Jul 15, 18:20 UTCJul 15, 19:00 UTC40m
2026-07-15 N241TD - Jul 15, 16:15 UTCJul 15, 17:40 UTC1h 25m
2026-07-14 N241TD - Jul 14, 22:40 UTCJul 14, 23:10 UTC29m
2026-07-14 N241TD - Jul 14, 21:30 UTCJul 14, 22:05 UTC35m
2026-07-10 N241TD - Jul 10, 20:15 UTCJul 10, 20:25 UTC10m
2026-07-09 N241TD SEE → SEE Jul 9, 19:15 UTCJul 9, 20:30 UTC1h 15m
2026-07-09 N241TD SEE → SEE Jul 9, 17:25 UTCJul 9, 18:25 UTC1h 0m
2026-07-08 N241TD SEE → SEE Jul 8, 21:45 UTCJul 8, 22:45 UTC1h 0m
2026-07-08 N241TD SEE → SEE Jul 8, 18:35 UTCJul 8, 20:50 UTC2h 15m
2026-07-07 N241TD SEE → SEE Jul 7, 23:35 UTCJul 8, 00:35 UTC1h 0m
2026-07-06 N241TD SEE → SEE Jul 6, 21:25 UTCJul 6, 22:30 UTC1h 5m
2026-06-30 N241TD SEE → SEE Jun 30, 19:25 UTCJun 30, 20:30 UTC1h 5m
2026-06-29 N241TD SEE → SEE Jun 29, 22:00 UTCJun 29, 22:24 UTC25m
2026-06-29 N241TD SEE → SEE Jun 29, 20:30 UTCJun 29, 20:54 UTC25m
2026-06-29 N241TD - Jun 29, 17:34 UTCJun 29, 18:49 UTC1h 15m
2026-06-27 N241TD SEE → SEE Jun 27, 01:15 UTCJun 27, 02:25 UTC1h 10m
2026-06-26 N241TD SEE → SEE Jun 26, 19:35 UTCJun 26, 20:55 UTC1h 20m
2026-06-26 N241TD SEE → SEE Jun 26, 17:29 UTCJun 26, 18:15 UTC45m
2026-06-25 N241TD - Jun 25, 20:14 UTCJun 25, 20:39 UTC25m
2026-06-25 N241TD SEE → SEE Jun 25, 18:00 UTCJun 25, 19:09 UTC1h 10m
2026-06-25 N241TD SEE → SEE Jun 25, 16:39 UTCJun 25, 16:59 UTC20m
2026-06-25 N241TD - Jun 25, 04:35 UTCJun 25, 05:55 UTC1h 20m
2026-06-24 N241TD SEE → SEE Jun 24, 20:35 UTCJun 24, 20:49 UTC15m
2026-06-24 N241TD SEE → SEE Jun 24, 17:20 UTCJun 24, 18:20 UTC1h 0m
2026-06-24 N241TD SEE → SEE Jun 24, 04:24 UTCJun 24, 05:24 UTC1h 0m
2026-06-24 N241TD SEE → SEE Jun 24, 01:49 UTCJun 24, 02:34 UTC45m
2026-06-23 N241TD SEE → SEE Jun 23, 23:59 UTCJun 24, 00:59 UTC1h 0m
2026-06-23 N241TD SEE → SEE Jun 23, 16:39 UTCJun 23, 17:30 UTC50m
2026-06-22 N241TD SEE → SEE Jun 22, 23:39 UTCJun 23, 00:39 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 N241TD page for operator, model, and routing details .

Mode-S A23563 frequently asked

What is Mode-S code A23563?
A23563 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N241TD.
Where is Mode-S A23563 registered?
Mode-S code A23563 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 A23563 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 22:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A23563, octal 50432543, decimal 10,630,499.
What flights does A23563 operate?
Mode-S A23563 has broadcast 1 distinct callsign, including N241TD.