Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AB7ABC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N839KT · BEECH 23 Sundowner · operated by NORTH STAR FLYERS LLC

Hex
AB7ABC
Octal
52675274
Decimal
11,238,076
Country
US
Tail
N839KT
Type
BE23
Broadcasting now · callsign N839KT · 2,100 ft
Flights observed
76
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 16:10 UTC

Current position

AB7ABC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AB7ABC 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
N839KT - 76 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N839KT - Jul 26, 15:05 UTCJul 26, 16:10 UTC1h 5m
2026-07-23 N839KT - Jul 23, 21:45 UTCJul 23, 22:40 UTC55m
2026-07-23 N839KT - Jul 23, 02:15 UTCJul 23, 02:50 UTC35m
2026-07-15 N839KT - Jul 15, 13:25 UTCJul 15, 14:25 UTC1h 0m
2026-07-14 N839KT - Jul 14, 17:00 UTCJul 14, 17:45 UTC45m
2026-07-14 N839KT - Jul 14, 14:15 UTCJul 14, 15:50 UTC1h 35m
2026-07-10 N839KT - Jul 10, 13:30 UTCJul 10, 14:25 UTC55m
2026-07-06 N839KT - Jul 6, 21:20 UTCJul 6, 22:00 UTC40m
2026-07-06 N839KT - Jul 6, 16:15 UTCJul 6, 17:00 UTC45m
2026-07-03 N839KT - Jul 3, 13:10 UTCJul 3, 14:05 UTC55m
2026-07-03 N839KT - Jul 3, 00:10 UTCJul 3, 00:50 UTC40m
2026-07-02 N839KT - Jul 2, 23:00 UTCJul 2, 23:35 UTC35m
2026-07-01 N839KT - Jul 1, 23:05 UTCJul 2, 00:00 UTC55m
2026-06-30 N839KT - Jun 30, 15:55 UTCJun 30, 16:30 UTC35m
2026-06-27 N839KT - Jun 27, 20:49 UTCJun 27, 22:35 UTC1h 45m
2026-06-27 N839KT - Jun 27, 18:09 UTCJun 27, 18:39 UTC30m
2026-06-27 N839KT - Jun 27, 16:44 UTCJun 27, 17:14 UTC30m
2026-06-26 N839KT - Jun 26, 19:45 UTCJun 26, 20:40 UTC55m
2026-06-25 N839KT - Jun 25, 20:49 UTCJun 25, 22:04 UTC1h 15m
2026-06-24 N839KT - Jun 24, 16:24 UTCJun 24, 16:54 UTC30m
2026-06-23 N839KT - Jun 23, 14:44 UTCJun 23, 15:50 UTC1h 5m
2026-06-22 N839KT - Jun 22, 21:40 UTCJun 22, 22:19 UTC40m
2026-06-22 N839KT - Jun 22, 15:14 UTCJun 22, 15:59 UTC45m
2026-06-22 N839KT - Jun 22, 01:15 UTCJun 22, 01:55 UTC40m
2026-06-21 N839KT - Jun 21, 19:14 UTCJun 21, 20:14 UTC1h 0m
2026-06-20 N839KT - Jun 20, 14:19 UTCJun 20, 15:14 UTC55m
2026-06-19 N839KT - Jun 19, 18:49 UTCJun 19, 19:59 UTC1h 10m
2026-06-18 N839KT - Jun 18, 17:55 UTCJun 18, 18:25 UTC30m
2026-06-18 N839KT - Jun 18, 15:50 UTCJun 18, 16:20 UTC30m
2026-06-15 N839KT - Jun 15, 19:10 UTCJun 15, 20:15 UTC1h 5m
2026-06-07 N839KT - Jun 7, 14:55 UTCJun 7, 15:50 UTC55m
2026-06-07 N839KT - Jun 7, 00:10 UTCJun 7, 01:00 UTC50m
2026-06-06 N839KT - Jun 6, 22:20 UTCJun 6, 23:05 UTC45m
2026-06-03 N839KT - Jun 3, 21:10 UTCJun 3, 21:40 UTC30m
2026-06-03 N839KT - Jun 3, 20:05 UTCJun 3, 20:30 UTC25m
2026-05-31 N839KT - May 31, 16:50 UTCMay 31, 18:00 UTC1h 10m
2026-05-30 N839KT - May 30, 18:55 UTCMay 30, 19:05 UTC10m
2026-05-30 N839KT STP → STP May 30, 18:00 UTCMay 30, 18:50 UTC50m
2026-05-30 N839KT - May 30, 16:25 UTCMay 30, 16:50 UTC25m
2026-05-30 N839KT STP → STP May 30, 14:30 UTCMay 30, 15:50 UTC1h 20m
2026-05-30 N839KT - May 30, 12:40 UTCMay 30, 12:50 UTC10m
2026-05-29 N839KT - May 29, 16:15 UTCMay 29, 17:10 UTC55m
2026-05-29 N839KT - May 29, 15:50 UTCMay 29, 16:05 UTC15m
2026-05-29 N839KT - May 29, 13:45 UTCMay 29, 14:40 UTC55m
2026-05-27 N839KT - May 27, 18:00 UTCMay 27, 19:10 UTC1h 10m
2026-05-27 N839KT - May 27, 16:00 UTCMay 27, 16:45 UTC45m
2026-05-25 N839KT - May 25, 16:30 UTCMay 25, 17:50 UTC1h 20m
2026-05-22 N839KT - May 22, 16:35 UTCMay 22, 17:10 UTC35m
2026-05-22 N839KT - May 22, 14:35 UTCMay 22, 15:15 UTC40m
2026-05-22 N839KT - May 22, 00:45 UTCMay 22, 01:20 UTC35m

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 N839KT page for operator, model, and routing details .

Mode-S AB7ABC frequently asked

What is Mode-S code AB7ABC?
AB7ABC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N839KT.
Where is Mode-S AB7ABC registered?
Mode-S code AB7ABC 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 AB7ABC broadcasting right now?
Yes. Mode-S AB7ABC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB7ABC, octal 52675274, decimal 11,238,076.
What flights does AB7ABC operate?
Mode-S AB7ABC has broadcast 1 distinct callsign, including N839KT.