Apparatus

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sensors Mode-S transponder

AB80CB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N840KS · CESSNA 172 Skyhawk · operated by KANSAS STATE UNIVERSITY

Hex
AB80CB
Octal
52700313
Decimal
11,239,627
Country
US
Tail
N840KS
Type
C172
No current signal · last broadcast 7h ago
Flights observed
46
Distinct callsigns
1
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S AB80CB.

Country allocation

The ICAO 24-bit address AB80CB 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
KSU40 - 46 2026-06-02

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-06-02 KSU40 SLN → SLN Jun 2, 21:05 UTCJun 2, 21:55 UTC50m
2026-06-02 KSU40 SLN → SLN Jun 2, 19:15 UTCJun 2, 20:00 UTC45m
2026-06-02 KSU40 - Jun 2, 17:00 UTCJun 2, 18:30 UTC1h 30m
2026-06-01 KSU40 SLN → SLN Jun 1, 19:00 UTCJun 1, 19:45 UTC45m
2026-05-29 KSU40 SLN → SLN May 29, 19:45 UTCMay 29, 20:45 UTC1h 0m
2026-05-27 KSU40 SLN → SLN May 27, 14:40 UTCMay 27, 16:00 UTC1h 20m
2026-05-27 KSU40 SLN → SLN May 27, 11:55 UTCMay 27, 12:40 UTC45m
2026-05-27 KSU40 - May 27, 00:30 UTCMay 27, 00:44 UTC15m
2026-05-26 KSU40 - May 26, 21:34 UTCMay 26, 23:19 UTC1h 45m
2026-05-26 KSU40 SLN → SLN May 26, 18:45 UTCMay 26, 20:40 UTC1h 55m
2026-05-26 KSU40 SLN → SLN May 26, 13:00 UTCMay 26, 14:24 UTC1h 25m
2026-05-20 KSU40 SLN → SLN May 20, 17:15 UTCMay 20, 18:20 UTC1h 5m
2026-05-19 KSU40 SLN → SLN May 19, 21:15 UTCMay 19, 22:25 UTC1h 10m
2026-05-15 KSU40 SLN → SLN May 15, 16:25 UTCMay 15, 17:20 UTC55m
2026-05-13 KSU40 - May 13, 22:20 UTCMay 13, 23:45 UTC1h 25m
2026-05-13 KSU40 - May 13, 19:25 UTCMay 13, 20:40 UTC1h 15m
2026-05-13 KSU40 SLN → SLN May 13, 15:55 UTCMay 13, 17:35 UTC1h 40m
2026-05-04 KSU40 - May 4, 14:50 UTCMay 4, 15:35 UTC45m
2026-05-04 KSU40 - May 4, 13:35 UTCMay 4, 14:00 UTC25m
2026-05-03 KSU40 - May 3, 20:25 UTCMay 3, 21:29 UTC1h 5m
2026-05-03 KSU40 - May 3, 17:00 UTCMay 3, 18:09 UTC1h 10m
2026-05-01 KSU40 - May 1, 15:30 UTCMay 1, 16:20 UTC50m
2026-05-01 KSU40 - May 1, 02:15 UTCMay 1, 02:50 UTC35m
2026-04-30 KSU40 - Apr 30, 23:45 UTCMay 1, 00:20 UTC35m
2026-04-30 KSU40 SLN → SLN Apr 30, 16:00 UTCApr 30, 17:25 UTC1h 25m
2026-04-29 KSU40 SLN → SLN Apr 29, 22:05 UTCApr 30, 02:50 UTC4h 44m
2026-04-29 KSU40 SLN → SLN Apr 29, 18:10 UTCApr 29, 20:40 UTC2h 30m
2026-04-29 KSU40 SLN → SLN Apr 29, 14:50 UTCApr 29, 16:25 UTC1h 35m
2026-04-25 KSU40 SLN → SLN Apr 25, 02:40 UTCApr 25, 03:15 UTC35m
2026-04-24 KSU40 SLN → SLN Apr 24, 21:30 UTCApr 24, 22:20 UTC50m
2026-04-20 KSU40 SLN → SLN Apr 20, 13:40 UTCApr 20, 14:55 UTC1h 15m
2026-04-19 KSU40 SLN → SLN Apr 19, 16:45 UTCApr 19, 18:40 UTC1h 55m
2026-04-19 KSU40 SLN → SLN Apr 19, 02:45 UTCApr 19, 04:45 UTC2h 0m
2026-04-18 KSU40 SLN → SLN Apr 18, 12:40 UTCApr 18, 14:10 UTC1h 30m
2026-04-16 KSU40 SLN → SLN Apr 16, 23:30 UTCApr 17, 01:04 UTC1h 35m
2026-04-16 KSU40 SLN → SLN Apr 16, 19:35 UTCApr 16, 20:20 UTC45m
2026-04-16 KSU40 SLN → SLN Apr 16, 17:15 UTCApr 16, 18:05 UTC50m
2026-04-16 KSU40 SLN → SLN Apr 16, 17:05 UTCApr 16, 17:10 UTC5m
2026-04-16 KSU40 SLN → SLN Apr 16, 15:20 UTCApr 16, 16:05 UTC45m
2026-04-16 KSU40 SLN → SLN Apr 16, 13:15 UTCApr 16, 14:35 UTC1h 20m
2026-04-15 KSU40 SLN → SLN Apr 15, 23:35 UTCApr 16, 01:05 UTC1h 30m
2026-04-15 KSU40 - Apr 15, 21:05 UTCApr 15, 22:00 UTC55m
2026-04-15 KSU40 - Apr 15, 17:05 UTCApr 15, 17:25 UTC20m
2026-04-15 KSU40 SLN → SLN Apr 15, 13:05 UTCApr 15, 14:15 UTC1h 10m
2026-04-14 KSU40 - Apr 14, 14:50 UTCApr 14, 15:35 UTC45m
2026-04-14 KSU40 - Apr 14, 13:55 UTCApr 14, 14:45 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 N840KS page for operator, model, and routing details .

Mode-S AB80CB frequently asked

What is Mode-S code AB80CB?
AB80CB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N840KS.
Where is Mode-S AB80CB registered?
Mode-S code AB80CB 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 AB80CB broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB80CB, octal 52700313, decimal 11,239,627.
What flights does AB80CB operate?
Mode-S AB80CB has broadcast 1 distinct callsign, including KSU40.