Apparatus

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sensors Mode-S transponder

A0B1D0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N144CT · PIPER PA-28-140/150/160/180 · operated by CTI AIRCRAFT LEASING LLC

Hex
A0B1D0
Octal
50130720
Decimal
10,531,280
Country
US
Tail
N144CT
Type
P28A
No current signal · last broadcast 15d ago
Flights observed
101
Distinct callsigns
1
Country
US
Last broadcast
15d ago

Last known position

Most recent position reported by Mode-S A0B1D0.

Country allocation

The ICAO 24-bit address A0B1D0 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
N144CT - 101 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-02 N144CT - Jul 2, 12:55 UTCJul 2, 13:05 UTC10m
2026-06-30 N144CT FXE → FXE Jun 30, 14:45 UTCJun 30, 15:50 UTC1h 5m
2026-06-26 N144CT - Jun 26, 12:59 UTCJun 26, 13:30 UTC30m
2026-06-25 N144CT FXE → FXE Jun 25, 14:59 UTCJun 25, 15:59 UTC1h 0m
2026-06-25 N144CT FXE → FXE Jun 25, 12:50 UTCJun 25, 13:35 UTC45m
2026-06-24 N144CT - Jun 24, 14:39 UTCJun 24, 16:50 UTC2h 10m
2026-06-23 N144CT - Jun 23, 19:00 UTCJun 23, 19:55 UTC55m
2026-06-23 N144CT - Jun 23, 14:55 UTCJun 23, 15:55 UTC1h 0m
2026-06-23 N144CT FXE → FXE Jun 23, 12:29 UTCJun 23, 13:39 UTC1h 10m
2026-06-22 N144CT FXE → FXE Jun 22, 16:45 UTCJun 22, 18:04 UTC1h 20m
2026-06-22 N144CT FXE → FXE Jun 22, 14:59 UTCJun 22, 15:45 UTC45m
2026-06-22 N144CT - Jun 22, 12:54 UTCJun 22, 13:59 UTC1h 5m
2026-06-19 N144CT - Jun 19, 20:34 UTCJun 19, 22:19 UTC1h 45m
2026-06-19 N144CT - Jun 19, 13:34 UTCJun 19, 13:54 UTC20m
2026-06-19 N144CT - Jun 19, 12:25 UTCJun 19, 12:49 UTC25m
2026-06-18 N144CT PPM → FXE Jun 18, 20:45 UTCJun 18, 22:50 UTC2h 5m
2026-06-18 N144CT - Jun 18, 16:45 UTCJun 18, 17:50 UTC1h 5m
2026-06-18 N144CT - Jun 18, 13:10 UTCJun 18, 14:05 UTC55m
2026-06-17 N144CT - Jun 17, 22:45 UTCJun 18, 00:20 UTC1h 35m
2026-06-17 N144CT - Jun 17, 20:40 UTCJun 17, 21:35 UTC55m
2026-06-17 N144CT - Jun 17, 19:00 UTCJun 17, 19:45 UTC45m
2026-06-17 N144CT - Jun 17, 15:00 UTCJun 17, 15:25 UTC25m
2026-06-17 N144CT - Jun 17, 13:45 UTCJun 17, 14:15 UTC30m
2026-06-16 N144CT - Jun 16, 23:05 UTCJun 17, 00:15 UTC1h 10m
2026-06-16 N144CT - Jun 16, 22:20 UTCJun 16, 22:30 UTC10m
2026-06-16 N144CT - Jun 16, 20:30 UTCJun 16, 21:35 UTC1h 5m
2026-06-13 N144CT - Jun 13, 14:45 UTCJun 13, 15:10 UTC25m
2026-06-12 N144CT FXE → FXE Jun 12, 15:00 UTCJun 12, 15:55 UTC55m
2026-06-12 N144CT - Jun 12, 13:00 UTCJun 12, 14:10 UTC1h 10m
2026-06-11 N144CT - Jun 11, 13:15 UTCJun 11, 15:45 UTC2h 30m
2026-06-09 N144CT - Jun 9, 23:30 UTCJun 10, 01:25 UTC1h 55m
2026-06-09 N144CT FXE → LEE Jun 9, 20:40 UTCJun 9, 22:30 UTC1h 50m
2026-06-09 N144CT FXE → FXE Jun 9, 12:55 UTCJun 9, 15:25 UTC2h 30m
2026-06-08 N144CT - Jun 8, 20:55 UTCJun 8, 23:05 UTC2h 10m
2026-06-08 N144CT - Jun 8, 17:55 UTCJun 8, 18:55 UTC1h 0m
2026-06-08 N144CT FXE → FXE Jun 8, 15:00 UTCJun 8, 16:50 UTC1h 50m
2026-06-05 N144CT - Jun 5, 19:45 UTCJun 5, 20:50 UTC1h 5m
2026-06-05 N144CT FXE → FXE Jun 5, 15:45 UTCJun 5, 17:00 UTC1h 15m
2026-06-04 N144CT - Jun 4, 21:00 UTCJun 4, 23:10 UTC2h 10m
2026-06-04 N144CT FXE → FXE Jun 4, 09:50 UTCJun 4, 11:55 UTC2h 5m
2026-06-03 N144CT - Jun 3, 16:45 UTCJun 3, 17:30 UTC45m
2026-06-03 N144CT - Jun 3, 14:40 UTCJun 3, 15:35 UTC55m
2026-06-03 N144CT - Jun 3, 12:35 UTCJun 3, 13:30 UTC55m
2026-06-02 N144CT - Jun 2, 17:25 UTCJun 2, 17:50 UTC25m
2026-06-02 N144CT FXE → FXE Jun 2, 13:00 UTCJun 2, 13:55 UTC55m
2026-06-02 N144CT - Jun 2, 03:05 UTCJun 2, 03:25 UTC20m
2026-06-01 N144CT - Jun 1, 23:50 UTCJun 2, 02:15 UTC2h 25m
2026-06-01 N144CT - Jun 1, 12:45 UTCJun 1, 13:55 UTC1h 10m
2026-05-30 N144CT - May 30, 13:50 UTCMay 30, 14:30 UTC40m
2026-05-28 N144CT - May 28, 16:45 UTCMay 28, 17:40 UTC55m

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 N144CT page for operator, model, and routing details .

Mode-S A0B1D0 frequently asked

What is Mode-S code A0B1D0?
A0B1D0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N144CT.
Where is Mode-S A0B1D0 registered?
Mode-S code A0B1D0 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 A0B1D0 broadcasting right now?
No active broadcast right now. Last signal was 15d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0B1D0, octal 50130720, decimal 10,531,280.
What flights does A0B1D0 operate?
Mode-S A0B1D0 has broadcast 1 distinct callsign, including N144CT.