Apparatus

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sensors Mode-S transponder

ABF4C6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N87JA · CESSNA 172 Skyhawk · operated by N87JA LK AIRCRAFT HOLDINGS LLC

Hex
ABF4C6
Octal
52772306
Decimal
11,269,318
Country
US
Tail
N87JA
Type
C172
No current signal · last broadcast 1d ago
Flights observed
186
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S ABF4C6.

Country allocation

The ICAO 24-bit address ABF4C6 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
N87JA - 186 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 N87JA - Jul 12, 17:55 UTCJul 12, 18:45 UTC50m
2026-07-12 N87JA - Jul 12, 15:10 UTCJul 12, 16:25 UTC1h 15m
2026-07-12 N87JA - Jul 12, 13:55 UTCJul 12, 14:35 UTC40m
2026-07-11 N87JA PWK → PWK Jul 11, 20:25 UTCJul 11, 21:10 UTC45m
2026-07-11 N87JA - Jul 11, 18:20 UTCJul 11, 18:30 UTC10m
2026-07-11 N87JA - Jul 11, 16:10 UTCJul 11, 17:00 UTC50m
2026-07-11 N87JA - Jul 11, 01:30 UTCJul 11, 01:40 UTC10m
2026-07-10 N87JA - Jul 10, 23:40 UTCJul 11, 00:35 UTC55m
2026-07-10 N87JA - Jul 10, 20:55 UTCJul 10, 21:40 UTC45m
2026-07-10 N87JA - Jul 10, 18:10 UTCJul 10, 18:55 UTC45m
2026-07-10 N87JA - Jul 10, 15:45 UTCJul 10, 17:00 UTC1h 15m
2026-07-10 N87JA - Jul 10, 14:25 UTCJul 10, 15:00 UTC35m
2026-07-08 N87JA - Jul 8, 21:45 UTCJul 8, 22:15 UTC30m
2026-07-08 N87JA PWK → PWK Jul 8, 18:40 UTCJul 8, 20:10 UTC1h 30m
2026-07-08 N87JA - Jul 8, 15:05 UTCJul 8, 15:55 UTC50m
2026-07-08 N87JA - Jul 8, 00:35 UTCJul 8, 01:25 UTC50m
2026-07-07 N87JA PWK → PWK Jul 7, 22:25 UTCJul 7, 22:55 UTC30m
2026-07-07 N87JA PWK → PWK Jul 7, 13:40 UTCJul 7, 15:00 UTC1h 20m
2026-07-07 N87JA PWK → PWK Jul 7, 02:50 UTCJul 7, 05:00 UTC2h 10m
2026-07-06 N87JA - Jul 6, 23:10 UTCJul 6, 23:45 UTC35m
2026-07-06 N87JA - Jul 6, 19:00 UTCJul 6, 19:20 UTC20m
2026-07-06 N87JA - Jul 6, 17:10 UTCJul 6, 18:30 UTC1h 20m
2026-07-06 N87JA - Jul 6, 12:55 UTCJul 6, 13:40 UTC45m
2026-07-06 N87JA PWK → PWK Jul 6, 07:25 UTCJul 6, 07:55 UTC30m
2026-07-06 N87JA PWK → PWK Jul 6, 03:00 UTCJul 6, 05:35 UTC2h 35m
2026-07-04 N87JA - Jul 4, 15:35 UTCJul 4, 17:05 UTC1h 30m
2026-07-03 N87JA - Jul 3, 14:50 UTCJul 3, 15:20 UTC30m
2026-07-03 N87JA - Jul 3, 12:55 UTCJul 3, 13:35 UTC40m
2026-07-02 N87JA - Jul 2, 19:00 UTCJul 2, 19:50 UTC50m
2026-07-02 N87JA PWK → PWK Jul 2, 16:35 UTCJul 2, 17:15 UTC40m
2026-07-02 N87JA - Jul 2, 05:10 UTCJul 2, 06:00 UTC50m
2026-07-02 N87JA - Jul 2, 03:30 UTCJul 2, 04:25 UTC55m
2026-07-01 N87JA PWK → PWK Jul 1, 21:15 UTCJul 1, 22:05 UTC50m
2026-06-30 N87JA PWK → PWK Jun 30, 13:40 UTCJun 30, 15:10 UTC1h 30m
2026-06-29 N87JA - Jun 29, 18:25 UTCJun 29, 19:09 UTC45m
2026-06-29 N87JA PWK → PWK Jun 29, 01:20 UTCJun 29, 02:09 UTC50m
2026-06-28 N87JA - Jun 28, 15:20 UTCJun 28, 15:40 UTC20m
2026-06-28 N87JA - Jun 28, 13:59 UTCJun 28, 14:25 UTC25m
2026-06-26 N87JA - Jun 26, 18:04 UTCJun 26, 18:44 UTC40m
2026-06-26 N87JA - Jun 26, 17:04 UTCJun 26, 17:29 UTC25m
2026-06-25 N87JA - Jun 25, 17:25 UTCJun 25, 18:34 UTC1h 10m
2026-06-23 N87JA - Jun 23, 18:10 UTCJun 23, 19:19 UTC1h 10m
2026-06-23 N87JA - Jun 23, 13:50 UTCJun 23, 15:40 UTC1h 50m
2026-06-22 N87JA PWK → PWK Jun 22, 13:59 UTCJun 22, 14:45 UTC45m
2026-06-21 N87JA PWK → PWK Jun 21, 15:49 UTCJun 21, 16:44 UTC55m
2026-06-21 N87JA - Jun 21, 14:19 UTCJun 21, 14:50 UTC30m
2026-06-21 N87JA - Jun 21, 00:25 UTCJun 21, 02:45 UTC2h 20m
2026-06-20 N87JA PWK → PWK Jun 20, 23:14 UTCJun 20, 23:25 UTC10m
2026-06-20 N87JA PWK → PWK Jun 20, 20:25 UTCJun 20, 21:30 UTC1h 5m
2026-06-20 N87JA - Jun 20, 18:04 UTCJun 20, 18:54 UTC50m

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 N87JA page for operator, model, and routing details .

Mode-S ABF4C6 frequently asked

What is Mode-S code ABF4C6?
ABF4C6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N87JA.
Where is Mode-S ABF4C6 registered?
Mode-S code ABF4C6 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 ABF4C6 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABF4C6, octal 52772306, decimal 11,269,318.
What flights does ABF4C6 operate?
Mode-S ABF4C6 has broadcast 1 distinct callsign, including N87JA.