Apparatus

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sensors Mode-S transponder

AB07F5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N81KS · CESSNA 172 Skyhawk · operated by CHRISTIANSEN AVIATION LLC

Hex
AB07F5
Octal
52603765
Decimal
11,208,693
Country
US
Tail
N81KS
Type
C172
No current signal · last broadcast 6d ago
Flights observed
91
Distinct callsigns
1
Country
US
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S AB07F5.

Country allocation

The ICAO 24-bit address AB07F5 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
N81KS - 91 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 N81KS - Jul 16, 15:40 UTCJul 16, 20:09 UTC4h 30m
2026-07-16 N81KS - Jul 16, 03:40 UTCJul 16, 04:05 UTC25m
2026-07-15 N81KS - Jul 15, 22:10 UTCJul 15, 23:25 UTC1h 15m
2026-07-15 N81KS - Jul 15, 15:30 UTCJul 15, 17:30 UTC2h 0m
2026-07-15 N81KS - Jul 15, 13:35 UTCJul 15, 14:30 UTC55m
2026-06-25 N81KS BFL → BFL Jun 25, 18:39 UTCJun 25, 19:39 UTC1h 0m
2026-06-24 N81KS BFL → BFL Jun 24, 16:19 UTCJun 24, 16:45 UTC25m
2026-06-23 N81KS BFL → BFL Jun 23, 18:29 UTCJun 23, 19:44 UTC1h 15m
2026-06-23 N81KS BFL → BFL Jun 23, 16:35 UTCJun 23, 17:15 UTC40m
2026-06-23 N81KS BFL → BFL Jun 23, 13:59 UTCJun 23, 15:15 UTC1h 15m
2026-06-21 N81KS BFL → BFL Jun 21, 20:45 UTCJun 21, 21:19 UTC35m
2026-06-20 N81KS BFL → BFL Jun 20, 00:59 UTCJun 20, 02:14 UTC1h 15m
2026-06-19 N81KS BFL → BFL Jun 19, 19:09 UTCJun 19, 19:59 UTC50m
2026-06-19 N81KS BFL → BFL Jun 19, 16:25 UTCJun 19, 17:55 UTC1h 30m
2026-06-19 N81KS BFL → BFL Jun 19, 13:50 UTCJun 19, 15:19 UTC1h 30m
2026-06-19 N81KS BFL → BFL Jun 19, 01:50 UTCJun 19, 02:45 UTC55m
2026-06-18 N81KS BFL → BFL Jun 18, 23:15 UTCJun 19, 00:20 UTC1h 4m
2026-06-18 N81KS - Jun 18, 17:55 UTCJun 18, 20:20 UTC2h 25m
2026-06-18 N81KS - Jun 18, 14:25 UTCJun 18, 17:10 UTC2h 45m
2026-06-18 N81KS BFL → BFL Jun 18, 05:40 UTCJun 18, 06:30 UTC50m
2026-06-18 N81KS BFL → BFL Jun 18, 01:15 UTCJun 18, 02:05 UTC50m
2026-06-17 N81KS - Jun 17, 22:05 UTCJun 17, 23:50 UTC1h 45m
2026-06-17 N81KS BFL → MYF Jun 17, 19:00 UTCJun 17, 20:55 UTC1h 55m
2026-06-17 N81KS BFL → BFL Jun 17, 16:15 UTCJun 17, 16:20 UTC5m
2026-06-17 N81KS BFL → BFL Jun 17, 14:15 UTCJun 17, 15:20 UTC1h 5m
2026-06-17 N81KS BFL → BFL Jun 17, 04:10 UTCJun 17, 05:05 UTC55m
2026-06-17 N81KS BFL → BFL Jun 17, 01:35 UTCJun 17, 01:50 UTC15m
2026-06-16 N81KS BFL → BFL Jun 16, 23:10 UTCJun 17, 01:30 UTC2h 20m
2026-06-16 N81KS BFL → BFL Jun 16, 20:45 UTCJun 16, 21:35 UTC50m
2026-06-16 N81KS BFL → BFL Jun 16, 18:39 UTCJun 16, 19:40 UTC1h 0m
2026-06-16 N81KS BFL → BFL Jun 16, 03:50 UTCJun 16, 04:39 UTC50m
2026-06-15 N81KS BFL → BFL Jun 15, 22:05 UTCJun 15, 23:25 UTC1h 20m
2026-06-12 N81KS BFL → BFL Jun 12, 14:01 UTCJun 12, 14:50 UTC50m
2026-06-12 N81KS BFL → BFL Jun 12, 04:00 UTCJun 12, 04:55 UTC55m
2026-06-11 N81KS - Jun 11, 20:50 UTCJun 11, 22:25 UTC1h 35m
2026-06-11 N81KS BFL → BFL Jun 11, 18:55 UTCJun 11, 20:10 UTC1h 15m
2026-06-11 N81KS BFL → BFL Jun 11, 17:25 UTCJun 11, 17:55 UTC30m
2026-06-11 N81KS BFL → BFL Jun 11, 16:35 UTCJun 11, 17:05 UTC30m
2026-06-10 N81KS - Jun 10, 23:00 UTCJun 11, 00:10 UTC1h 10m
2026-06-10 N81KS - Jun 10, 21:35 UTCJun 10, 22:15 UTC40m
2026-06-10 N81KS BFL → BFL Jun 10, 20:55 UTCJun 10, 21:25 UTC30m
2026-06-10 N81KS BFL → BFL Jun 10, 18:50 UTCJun 10, 19:40 UTC50m
2026-06-10 N81KS - Jun 10, 15:50 UTCJun 10, 16:45 UTC55m
2026-06-10 N81KS - Jun 10, 14:30 UTCJun 10, 15:15 UTC45m
2026-06-10 N81KS BFL → BFL Jun 10, 05:50 UTCJun 10, 06:20 UTC30m
2026-06-10 N81KS BFL → BFL Jun 10, 04:00 UTCJun 10, 04:55 UTC55m
2026-06-09 N81KS BFL → BFL Jun 9, 23:35 UTCJun 10, 00:20 UTC45m
2026-06-09 N81KS BFL → BFL Jun 9, 21:35 UTCJun 9, 22:20 UTC45m
2026-06-09 N81KS BFL → BFL Jun 9, 19:50 UTCJun 9, 20:25 UTC35m
2026-06-09 N81KS BFL → BFL Jun 9, 03:15 UTCJun 9, 04:20 UTC1h 5m

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 N81KS page for operator, model, and routing details .

Mode-S AB07F5 frequently asked

What is Mode-S code AB07F5?
AB07F5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N81KS.
Where is Mode-S AB07F5 registered?
Mode-S code AB07F5 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 AB07F5 broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB07F5, octal 52603765, decimal 11,208,693.
What flights does AB07F5 operate?
Mode-S AB07F5 has broadcast 1 distinct callsign, including N81KS.