Apparatus

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sensors Mode-S transponder

A7005D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N550KS · CESSNA 525B Citation CJ3 · operated by KANSAS HIGHWAY PATROL

Hex
A7005D
Octal
51600135
Decimal
10,944,605
Country
US
Tail
N550KS
Type
C25B
No current signal · last broadcast 6h ago
Flights observed
88
Distinct callsigns
1
Country
US
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S A7005D.

Country allocation

The ICAO 24-bit address A7005D 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
N550KS - 88 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 N550KS - Jul 17, 18:10 UTCJul 17, 20:44 UTC2h 35m
2026-07-17 N550KS - Jul 17, 02:30 UTCJul 17, 03:25 UTC55m
2026-07-16 N550KS - Jul 16, 23:10 UTCJul 17, 00:14 UTC1h 5m
2026-07-16 N550KS - Jul 16, 20:25 UTCJul 16, 20:39 UTC15m
2026-07-16 N550KS - Jul 16, 16:49 UTCJul 16, 19:30 UTC2h 40m
2026-07-16 N550KS - Jul 16, 13:05 UTCJul 16, 15:40 UTC2h 35m
2026-07-15 N550KS - Jul 15, 17:55 UTCJul 15, 20:35 UTC2h 40m
2026-07-14 N550KS - Jul 14, 17:25 UTCJul 14, 20:10 UTC2h 45m
2026-07-13 N550KS - Jul 13, 22:05 UTCJul 13, 23:10 UTC1h 5m
2026-07-13 N550KS - Jul 13, 20:00 UTCJul 13, 21:10 UTC1h 10m
2026-07-10 N550KS - Jul 10, 14:35 UTCJul 10, 16:25 UTC1h 50m
2026-07-10 N550KS - Jul 10, 11:40 UTCJul 10, 13:05 UTC1h 25m
2026-07-08 N550KS - Jul 8, 17:45 UTCJul 8, 19:15 UTC1h 30m
2026-07-08 N550KS - Jul 8, 15:20 UTCJul 8, 16:55 UTC1h 35m
2026-07-07 N550KS - Jul 7, 19:50 UTCJul 7, 22:30 UTC2h 40m
2026-07-07 N550KS - Jul 7, 17:10 UTCJul 7, 18:45 UTC1h 35m
2026-07-07 N550KS - Jul 7, 14:05 UTCJul 7, 15:35 UTC1h 30m
2026-07-06 N550KS - Jul 6, 18:50 UTCJul 6, 21:30 UTC2h 40m
2026-07-06 N550KS - Jul 6, 14:20 UTCJul 6, 17:00 UTC2h 40m
2026-06-28 N550KS - Jun 28, 20:04 UTCJun 28, 20:29 UTC25m
2026-06-28 N550KS - Jun 28, 14:19 UTCJun 28, 14:54 UTC35m
2026-06-24 N550KS - Jun 24, 17:29 UTCJun 24, 19:00 UTC1h 30m
2026-06-24 N550KS - Jun 24, 12:54 UTCJun 24, 14:24 UTC1h 30m
2026-06-22 N550KS - Jun 22, 22:10 UTCJun 22, 23:29 UTC1h 20m
2026-06-22 N550KS - Jun 22, 20:04 UTCJun 22, 21:25 UTC1h 20m
2026-06-18 N550KS - Jun 18, 02:05 UTCJun 18, 02:30 UTC25m
2026-06-17 N550KS - Jun 17, 22:15 UTCJun 17, 22:35 UTC20m
2026-06-16 N550KS - Jun 16, 16:25 UTCJun 16, 18:20 UTC1h 55m
2026-06-16 N550KS - Jun 16, 13:44 UTCJun 16, 15:50 UTC2h 5m
2026-06-15 N550KS - Jun 15, 19:05 UTCJun 15, 20:40 UTC1h 35m
2026-06-15 N550KS - Jun 15, 10:30 UTCJun 15, 11:10 UTC40m
2026-06-13 N550KS - Jun 13, 18:15 UTCJun 13, 18:55 UTC40m
2026-06-13 N550KS - Jun 13, 14:35 UTCJun 13, 17:20 UTC2h 45m
2026-06-10 N550KS - Jun 10, 01:15 UTCJun 10, 01:35 UTC20m
2026-06-09 N550KS - Jun 9, 20:50 UTCJun 9, 21:05 UTC15m
2026-06-09 N550KS - Jun 9, 17:40 UTCJun 9, 18:05 UTC25m
2026-06-08 N550KS - Jun 8, 17:35 UTCJun 8, 19:05 UTC1h 30m
2026-06-08 N550KS - Jun 8, 14:15 UTCJun 8, 15:55 UTC1h 40m
2026-06-05 N550KS - Jun 5, 19:50 UTCJun 5, 21:30 UTC1h 40m
2026-06-05 N550KS - Jun 5, 17:30 UTCJun 5, 19:00 UTC1h 30m
2026-06-04 N550KS - Jun 4, 22:05 UTCJun 5, 00:30 UTC2h 25m
2026-06-02 N550KS - Jun 2, 13:15 UTCJun 2, 15:45 UTC2h 30m
2026-06-01 N550KS - Jun 1, 13:40 UTCJun 1, 16:15 UTC2h 35m
2026-05-31 N550KS - May 31, 16:35 UTCMay 31, 16:45 UTC10m
2026-05-31 N550KS - May 31, 12:55 UTCMay 31, 15:20 UTC2h 25m
2026-05-27 N550KS - May 27, 20:25 UTCMay 27, 20:50 UTC25m
2026-05-27 N550KS - May 27, 18:15 UTCMay 27, 18:40 UTC25m
2026-05-17 N550KS - May 17, 17:40 UTCMay 17, 20:35 UTC2h 55m
2026-05-17 N550KS - May 17, 12:55 UTCMay 17, 15:31 UTC2h 35m
2026-05-14 N550KS - May 14, 15:55 UTCMay 14, 17:55 UTC2h 0m

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 N550KS page for operator, model, and routing details .

Mode-S A7005D frequently asked

What is Mode-S code A7005D?
A7005D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N550KS.
Where is Mode-S A7005D registered?
Mode-S code A7005D 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 A7005D broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7005D, octal 51600135, decimal 10,944,605.
What flights does A7005D operate?
Mode-S A7005D has broadcast 1 distinct callsign, including N550KS.