Apparatus

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sensors Mode-S transponder

A88F1B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N6500J · PIPER PA-28-140/150/160/180 · operated by HORIZON AVIATION LLC

Hex
A88F1B
Octal
52107433
Decimal
11,046,683
Country
US
Tail
N6500J
Type
P28A
No current signal · last broadcast 23h ago
Flights observed
182
Distinct callsigns
1
Country
US
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S A88F1B.

Country allocation

The ICAO 24-bit address A88F1B 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
N6500J - 182 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 N6500J - Jul 20, 16:40 UTCJul 20, 17:55 UTC1h 15m
2026-07-20 N6500J - Jul 20, 14:25 UTCJul 20, 15:00 UTC35m
2026-07-20 N6500J - Jul 20, 11:50 UTCJul 20, 13:10 UTC1h 20m
2026-07-19 N6500J - Jul 19, 19:00 UTCJul 19, 20:20 UTC1h 20m
2026-07-19 N6500J - Jul 19, 17:10 UTCJul 19, 18:00 UTC50m
2026-07-19 N6500J - Jul 19, 09:50 UTCJul 19, 11:55 UTC2h 5m
2026-07-18 N6500J - Jul 18, 18:55 UTCJul 18, 19:15 UTC20m
2026-07-18 N6500J - Jul 18, 17:00 UTCJul 18, 17:40 UTC40m
2026-07-18 N6500J - Jul 18, 13:45 UTCJul 18, 14:50 UTC1h 5m
2026-07-17 N6500J - Jul 17, 15:55 UTCJul 17, 17:05 UTC1h 10m
2026-07-17 N6500J - Jul 17, 13:10 UTCJul 17, 15:10 UTC2h 0m
2026-07-16 N6500J - Jul 16, 18:15 UTCJul 16, 18:59 UTC45m
2026-07-16 N6500J - Jul 16, 17:00 UTCJul 16, 17:35 UTC35m
2026-07-16 N6500J - Jul 16, 15:05 UTCJul 16, 16:09 UTC1h 5m
2026-07-16 N6500J - Jul 16, 13:10 UTCJul 16, 14:10 UTC1h 0m
2026-07-15 N6500J - Jul 15, 19:55 UTCJul 15, 21:00 UTC1h 5m
2026-07-15 N6500J - Jul 15, 17:15 UTCJul 15, 18:50 UTC1h 35m
2026-07-08 N6500J - Jul 8, 17:35 UTCJul 8, 18:50 UTC1h 15m
2026-07-08 N6500J - Jul 8, 15:15 UTCJul 8, 16:55 UTC1h 40m
2026-07-08 N6500J - Jul 8, 13:20 UTCJul 8, 14:30 UTC1h 10m
2026-07-07 N6500J - Jul 7, 23:05 UTCJul 8, 00:50 UTC1h 45m
2026-07-07 N6500J - Jul 7, 17:15 UTCJul 7, 18:15 UTC1h 0m
2026-07-07 N6500J - Jul 7, 14:10 UTCJul 7, 16:05 UTC1h 55m
2026-07-06 N6500J - Jul 6, 23:50 UTCJul 7, 01:15 UTC1h 25m
2026-07-06 N6500J - Jul 6, 20:45 UTCJul 6, 21:35 UTC50m
2026-07-06 N6500J - Jul 6, 18:35 UTCJul 6, 19:35 UTC1h 0m
2026-07-05 N6500J - Jul 5, 19:40 UTCJul 5, 20:30 UTC50m
2026-07-04 N6500J - Jul 4, 13:25 UTCJul 4, 15:05 UTC1h 40m
2026-07-04 N6500J - Jul 4, 01:10 UTCJul 4, 02:05 UTC55m
2026-07-03 N6500J - Jul 3, 22:15 UTCJul 3, 23:00 UTC45m
2026-07-03 N6500J - Jul 3, 17:40 UTCJul 3, 17:50 UTC10m
2026-07-03 N6500J - Jul 3, 15:30 UTCJul 3, 16:25 UTC55m
2026-07-03 N6500J - Jul 3, 12:45 UTCJul 3, 14:50 UTC2h 5m
2026-07-03 N6500J - Jul 3, 00:35 UTCJul 3, 01:35 UTC1h 0m
2026-07-02 N6500J - Jul 2, 23:40 UTCJul 3, 00:20 UTC40m
2026-07-02 N6500J - Jul 2, 21:20 UTCJul 2, 22:30 UTC1h 10m
2026-07-02 N6500J - Jul 2, 11:10 UTCJul 2, 12:00 UTC50m
2026-07-01 N6500J - Jul 1, 23:30 UTCJul 2, 00:55 UTC1h 25m
2026-07-01 N6500J - Jul 1, 17:35 UTCJul 1, 18:45 UTC1h 10m
2026-07-01 N6500J - Jul 1, 13:20 UTCJul 1, 15:15 UTC1h 55m
2026-07-01 N6500J - Jul 1, 11:05 UTCJul 1, 12:05 UTC1h 0m
2026-06-30 N6500J - Jun 30, 22:50 UTCJun 30, 23:20 UTC30m
2026-06-30 N6500J - Jun 30, 19:35 UTCJun 30, 20:40 UTC1h 5m
2026-06-30 N6500J - Jun 30, 14:10 UTCJun 30, 16:00 UTC1h 50m
2026-06-30 N6500J - Jun 30, 11:55 UTCJun 30, 13:00 UTC1h 5m
2026-06-30 N6500J - Jun 30, 03:20 UTCJun 30, 04:10 UTC50m
2026-06-30 N6500J - Jun 30, 02:25 UTCJun 30, 03:15 UTC50m
2026-06-29 N6500J - Jun 29, 21:05 UTCJun 29, 23:19 UTC2h 15m
2026-06-29 N6500J - Jun 29, 18:10 UTCJun 29, 19:44 UTC1h 35m
2026-06-29 N6500J - Jun 29, 16:10 UTCJun 29, 16:55 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 N6500J page for operator, model, and routing details .

Mode-S A88F1B frequently asked

What is Mode-S code A88F1B?
A88F1B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N6500J.
Where is Mode-S A88F1B registered?
Mode-S code A88F1B 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 A88F1B broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A88F1B, octal 52107433, decimal 11,046,683.
What flights does A88F1B operate?
Mode-S A88F1B has broadcast 1 distinct callsign, including N6500J.