Apparatus

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sensors Mode-S transponder

A2424D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2448B · CESSNA 172R Cutlass RG · operated by CHRISTIANSEN AVIATION LLC

Hex
A2424D
Octal
50441115
Decimal
10,633,805
Country
US
Tail
N2448B
Type
C72R
No current signal · last broadcast Jul 26, 17:50 UTC
Flights observed
257
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 17:50 UTC

Last known position

Most recent position reported by Mode-S A2424D.

Country allocation

The ICAO 24-bit address A2424D 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
N2448B - 257 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N2448B HSH → HSH Jul 26, 16:50 UTCJul 26, 17:50 UTC1h 0m
2026-07-26 N2448B - Jul 26, 13:25 UTCJul 26, 14:00 UTC35m
2026-07-26 N2448B - Jul 26, 12:45 UTCJul 26, 12:55 UTC10m
2026-07-25 N2448B - Jul 25, 15:30 UTCJul 25, 16:45 UTC1h 15m
2026-07-25 N2448B - Jul 25, 14:35 UTCJul 25, 14:45 UTC10m
2026-07-25 N2448B - Jul 25, 13:35 UTCJul 25, 13:55 UTC20m
2026-07-25 N2448B HSH → HSH Jul 25, 02:00 UTCJul 25, 03:15 UTC1h 15m
2026-07-24 N2448B HSH → HSH Jul 24, 13:30 UTCJul 24, 14:40 UTC1h 10m
2026-07-24 N2448B - Jul 24, 02:35 UTCJul 24, 02:45 UTC10m
2026-07-24 N2448B - Jul 24, 01:25 UTCJul 24, 01:50 UTC25m
2026-07-23 N2448B - Jul 23, 18:30 UTCJul 23, 18:40 UTC10m
2026-07-23 N2448B - Jul 23, 17:30 UTCJul 23, 17:40 UTC10m
2026-07-23 N2448B - Jul 23, 16:30 UTCJul 23, 16:40 UTC10m
2026-07-23 N2448B - Jul 23, 15:35 UTCJul 23, 15:45 UTC10m
2026-07-23 N2448B - Jul 23, 14:05 UTCJul 23, 14:20 UTC15m
2026-07-23 N2448B - Jul 23, 12:50 UTCJul 23, 13:05 UTC15m
2026-07-22 N2448B - Jul 22, 16:55 UTCJul 22, 18:00 UTC1h 5m
2026-07-22 N2448B - Jul 22, 15:40 UTCJul 22, 15:55 UTC15m
2026-07-22 N2448B - Jul 22, 14:45 UTCJul 22, 15:00 UTC15m
2026-07-22 N2448B - Jul 22, 13:40 UTCJul 22, 13:50 UTC10m
2026-07-22 N2448B - Jul 22, 12:45 UTCJul 22, 12:55 UTC10m
2026-07-22 N2448B - Jul 22, 01:25 UTCJul 22, 01:35 UTC10m
2026-07-21 N2448B - Jul 21, 18:30 UTCJul 21, 18:40 UTC10m
2026-07-21 N2448B - Jul 21, 17:25 UTCJul 21, 17:45 UTC20m
2026-07-21 N2448B - Jul 21, 15:00 UTCJul 21, 15:10 UTC10m
2026-07-20 N2448B - Jul 20, 18:30 UTCJul 20, 18:40 UTC10m
2026-07-20 N2448B - Jul 20, 17:35 UTCJul 20, 17:45 UTC10m
2026-07-20 N2448B HSH → HSH Jul 20, 15:35 UTCJul 20, 16:45 UTC1h 10m
2026-07-20 N2448B HSH → HSH Jul 20, 13:50 UTCJul 20, 14:40 UTC50m
2026-07-19 N2448B - Jul 19, 16:40 UTCJul 19, 16:50 UTC10m
2026-07-19 N2448B HSH → HSH Jul 19, 14:45 UTCJul 19, 15:55 UTC1h 10m
2026-07-18 N2448B HSH → HSH Jul 18, 17:40 UTCJul 18, 18:40 UTC1h 0m
2026-07-18 N2448B - Jul 18, 15:00 UTCJul 18, 16:15 UTC1h 15m
2026-07-18 N2448B HSH → HII Jul 18, 13:35 UTCJul 18, 14:55 UTC1h 20m
2026-07-17 N2448B - Jul 17, 17:05 UTCJul 17, 17:15 UTC10m
2026-07-17 N2448B - Jul 17, 15:44 UTCJul 17, 15:55 UTC10m
2026-07-17 N2448B - Jul 17, 13:45 UTCJul 17, 14:39 UTC55m
2026-07-16 N2448B - Jul 16, 18:59 UTCJul 16, 19:45 UTC45m
2026-07-16 N2448B HSH → HSH Jul 16, 15:45 UTCJul 16, 17:05 UTC1h 20m
2026-07-16 N2448B - Jul 16, 14:25 UTCJul 16, 14:35 UTC10m
2026-07-16 N2448B - Jul 16, 13:34 UTCJul 16, 13:45 UTC10m
2026-07-16 N2448B - Jul 16, 04:00 UTCJul 16, 05:00 UTC1h 0m
2026-07-16 N2448B HSH → HSH Jul 16, 03:45 UTCJul 16, 03:50 UTC5m
2026-07-15 N2448B HSH → HSH Jul 15, 17:00 UTCJul 15, 18:15 UTC1h 15m
2026-07-15 N2448B - Jul 15, 15:45 UTCJul 15, 15:55 UTC10m
2026-07-15 N2448B - Jul 15, 14:55 UTCJul 15, 15:05 UTC10m
2026-07-15 N2448B HSH → HSH Jul 15, 06:00 UTCJul 15, 06:15 UTC15m
2026-07-15 N2448B - Jul 15, 03:30 UTCJul 15, 05:50 UTC2h 20m
2026-07-14 N2448B - Jul 14, 14:30 UTCJul 14, 14:40 UTC10m
2026-07-14 N2448B - Jul 14, 12:35 UTCJul 14, 13:20 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 N2448B page for operator, model, and routing details .

Mode-S A2424D frequently asked

What is Mode-S code A2424D?
A2424D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2448B.
Where is Mode-S A2424D registered?
Mode-S code A2424D 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 A2424D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2424D, octal 50441115, decimal 10,633,805.
What flights does A2424D operate?
Mode-S A2424D has broadcast 1 distinct callsign, including N2448B.