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sensors Mode-S transponder

ABB501

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8531J · CESSNA 150 · operated by CELESTIAL KINETICS FLIGHT ACADEMY LLC

Hex
ABB501
Octal
52732401
Decimal
11,252,993
Country
US
Tail
N8531J
Type
C150
No current signal · last broadcast Jul 5, 20:40 UTC
Flights observed
61
Distinct callsigns
1
Country
US
Last broadcast
Jul 5, 20:40 UTC

Last known position

Most recent position reported by Mode-S ABB501.

Country allocation

The ICAO 24-bit address ABB501 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
N8531J - 58 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-05 N8531J - Jul 5, 19:20 UTCJul 5, 20:40 UTC1h 20m
2026-07-03 N8531J - Jul 3, 13:35 UTCJul 3, 14:30 UTC55m
2026-07-01 N8531J - Jul 1, 20:55 UTCJul 1, 21:30 UTC35m
2026-06-30 N8531J - Jun 30, 22:00 UTCJun 30, 22:20 UTC20m
2026-06-29 N8531J - Jun 29, 19:00 UTCJun 29, 19:35 UTC35m
2026-06-28 N8531J - Jun 28, 20:50 UTCJun 28, 21:24 UTC35m
2026-06-25 N8531J - Jun 25, 22:54 UTCJun 25, 23:55 UTC1h 0m
2026-06-25 N8531J - Jun 25, 18:55 UTCJun 25, 19:39 UTC45m
2026-06-25 N8531J - Jun 25, 16:05 UTCJun 25, 17:09 UTC1h 5m
2026-06-24 N8531J - Jun 24, 18:05 UTCJun 24, 18:50 UTC45m
2026-06-23 N8531J - Jun 23, 23:14 UTCJun 23, 23:59 UTC45m
2026-06-23 N8531J - Jun 23, 21:29 UTCJun 23, 21:45 UTC15m
2026-06-23 N8531J - Jun 23, 15:04 UTCJun 23, 16:14 UTC1h 10m
2026-06-22 N8531J - Jun 22, 23:14 UTCJun 23, 00:24 UTC1h 10m
2026-06-22 N8531J - Jun 22, 18:15 UTCJun 22, 18:24 UTC10m
2026-06-22 N8531J - Jun 22, 16:14 UTCJun 22, 17:04 UTC50m
2026-06-21 N8531J - Jun 21, 18:54 UTCJun 21, 20:05 UTC1h 10m
2026-06-19 N8531J - Jun 19, 17:44 UTCJun 19, 18:44 UTC1h 0m
2026-06-18 N8531J - Jun 18, 23:40 UTCJun 19, 00:10 UTC29m
2026-06-18 N8531J - Jun 18, 19:55 UTCJun 18, 21:05 UTC1h 10m
2026-06-16 N8531J - Jun 16, 22:45 UTCJun 16, 23:50 UTC1h 5m
2026-06-15 N8531J - Jun 15, 23:54 UTCJun 16, 00:10 UTC15m
2026-06-13 N8531J - Jun 13, 13:35 UTCJun 13, 14:30 UTC55m
2026-06-12 N8531J - Jun 12, 16:10 UTCJun 12, 17:15 UTC1h 5m
2026-06-11 N8531J - Jun 11, 15:25 UTCJun 11, 16:00 UTC35m
2026-06-09 N8531J - Jun 9, 19:55 UTCJun 9, 20:20 UTC25m
2026-06-08 N8531J - Jun 8, 23:50 UTCJun 9, 00:10 UTC20m
2026-06-07 N8531J - Jun 7, 21:50 UTCJun 7, 22:30 UTC40m
2026-06-04 N8531J - Jun 4, 23:10 UTCJun 4, 23:30 UTC20m
2026-06-03 N8531J - Jun 3, 18:25 UTCJun 3, 19:05 UTC40m
2026-06-01 N8531J - Jun 1, 23:15 UTCJun 1, 23:55 UTC40m
2026-05-28 N8531J - May 28, 22:30 UTCMay 28, 23:05 UTC35m
2026-05-26 N8531J - May 26, 15:29 UTCMay 26, 16:15 UTC45m
2026-05-24 N8531J - May 24, 20:20 UTCMay 24, 20:45 UTC25m
2026-05-23 N8531J - May 23, 14:35 UTCMay 23, 15:05 UTC30m
2026-05-21 - - May 21, 21:30 UTCMay 21, 21:40 UTC10m
2026-05-21 N8531J - May 21, 19:45 UTCMay 21, 20:35 UTC50m
2026-05-21 N8531J - May 21, 18:15 UTCMay 21, 19:10 UTC55m
2026-05-20 N8531J - May 20, 23:15 UTCMay 21, 00:50 UTC1h 35m
2026-05-18 - - May 18, 17:45 UTCMay 18, 17:55 UTC10m
2026-05-16 N8531J - May 16, 17:50 UTCMay 16, 18:05 UTC15m
2026-05-15 - - May 15, 20:15 UTCMay 15, 21:15 UTC1h 0m
2026-05-15 N8531J - May 15, 17:35 UTCMay 15, 17:45 UTC10m
2026-05-15 N8531J - May 15, 00:05 UTCMay 15, 00:15 UTC10m
2026-05-14 N8531J - May 14, 21:35 UTCMay 14, 22:50 UTC1h 15m
2026-05-12 N8531J - May 12, 16:40 UTCMay 12, 16:50 UTC10m
2026-05-11 N8531J - May 11, 20:05 UTCMay 11, 20:20 UTC15m
2026-05-09 N8531J - May 9, 17:40 UTCMay 9, 18:00 UTC20m
2026-05-08 N8531J - May 8, 21:30 UTCMay 8, 22:05 UTC35m
2026-05-07 N8531J - May 7, 19:45 UTCMay 7, 20:45 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 N8531J page for operator, model, and routing details .

Mode-S ABB501 frequently asked

What is Mode-S code ABB501?
ABB501 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8531J.
Where is Mode-S ABB501 registered?
Mode-S code ABB501 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 ABB501 broadcasting right now?
No active broadcast right now. Last signal was Jul 5, 20:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABB501, octal 52732401, decimal 11,252,993.
What flights does ABB501 operate?
Mode-S ABB501 has broadcast 1 distinct callsign, including N8531J.