sensors Mode-S transponder

A29CA9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2679Z · CESSNA 185 Skywagon · operated by RONALTER JOHN M

Hex
A29CA9
Octal
50516251
Decimal
10,656,937
Country
US
Tail
N2679Z
Type
C185
No current signal · last broadcast Jul 25, 18:40 UTC
Flights observed
40
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 18:40 UTC

Last known position

Most recent position reported by Mode-S A29CA9.

Country allocation

The ICAO 24-bit address A29CA9 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
N2679Z - 40 2026-07-25

Recent flights last 40

DateFlightRouteTakeoffLandingDuration
2026-07-25 N2679Z - Jul 25, 18:05 UTCJul 25, 18:40 UTC35m
2026-07-25 N2679Z - Jul 25, 11:10 UTCJul 25, 11:40 UTC30m
2026-07-21 N2679Z - Jul 21, 15:10 UTCJul 21, 19:05 UTC3h 55m
2026-07-17 N2679Z BBX → OSH Jul 17, 15:10 UTCJul 17, 20:50 UTC5h 40m
2026-07-12 N2679Z - Jul 12, 17:50 UTCJul 12, 20:40 UTC2h 50m
2026-07-09 N2679Z - Jul 9, 18:30 UTCJul 9, 18:50 UTC20m
2026-07-09 N2679Z - Jul 9, 15:15 UTCJul 9, 17:45 UTC2h 30m
2026-07-08 N2679Z - Jul 8, 15:25 UTCJul 8, 15:40 UTC15m
2026-07-08 N2679Z - Jul 8, 14:35 UTCJul 8, 14:50 UTC15m
2026-06-21 N2679Z - Jun 21, 21:44 UTCJun 21, 22:20 UTC35m
2026-06-21 N2679Z - Jun 21, 11:00 UTCJun 21, 11:34 UTC35m
2026-06-20 N2679Z - Jun 20, 19:09 UTCJun 20, 19:44 UTC35m
2026-06-20 N2679Z - Jun 20, 10:55 UTCJun 20, 11:30 UTC35m
2026-06-19 N2679Z - Jun 19, 18:30 UTCJun 19, 19:19 UTC50m
2026-06-08 N2679Z - Jun 8, 12:15 UTCJun 8, 12:45 UTC30m
2026-06-07 N2679Z - Jun 7, 18:30 UTCJun 7, 21:10 UTC2h 40m
2026-06-05 N2679Z - Jun 5, 18:50 UTCJun 5, 19:10 UTC20m
2026-06-05 N2679Z - Jun 5, 15:30 UTCJun 5, 17:50 UTC2h 20m
2026-06-04 N2679Z BBX → BBX Jun 4, 15:40 UTCJun 4, 16:30 UTC50m
2026-05-31 N2679Z BBX → BBX May 31, 14:40 UTCMay 31, 15:15 UTC35m
2026-05-26 N2679Z BBX → BBX May 26, 20:50 UTCMay 26, 21:25 UTC35m
2026-05-22 N2679Z - May 22, 19:15 UTCMay 22, 19:25 UTC10m
2026-05-22 N2679Z - May 22, 16:50 UTCMay 22, 17:05 UTC15m
2026-05-12 N2679Z - May 12, 23:20 UTCMay 12, 23:50 UTC30m
2026-05-12 N2679Z - May 12, 20:30 UTCMay 12, 21:05 UTC35m
2026-05-11 N2679Z - May 11, 16:20 UTCMay 11, 16:30 UTC10m
2026-05-11 N2679Z - May 11, 14:40 UTCMay 11, 14:55 UTC15m
2026-05-10 N2679Z - May 10, 19:05 UTCMay 10, 19:19 UTC15m
2026-05-10 N2679Z - May 10, 17:25 UTCMay 10, 17:34 UTC10m
2026-05-08 N2679Z - May 8, 20:15 UTCMay 8, 20:35 UTC20m
2026-05-08 N2679Z - May 8, 17:50 UTCMay 8, 18:10 UTC20m
2026-04-25 N2679Z - Apr 25, 19:00 UTCApr 25, 21:20 UTC2h 20m
2026-04-23 N2679Z - Apr 23, 18:35 UTCApr 23, 18:55 UTC20m
2026-04-23 N2679Z - Apr 23, 15:35 UTCApr 23, 17:50 UTC2h 15m
2026-04-18 N2679Z - Apr 18, 20:10 UTCApr 18, 21:00 UTC50m
2026-04-18 N2679Z - Apr 18, 14:10 UTCApr 18, 14:45 UTC35m
2026-04-14 N2679Z - Apr 14, 15:40 UTCApr 14, 16:20 UTC40m
2026-04-14 N2679Z - Apr 14, 14:50 UTCApr 14, 15:00 UTC10m
2026-04-14 N2679Z BBX → WBW Apr 14, 12:15 UTCApr 14, 12:45 UTC30m
2026-04-12 N2679Z - Apr 12, 19:50 UTCApr 12, 20:15 UTC25m

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 N2679Z page for operator, model, and routing details .

Mode-S A29CA9 frequently asked

What is Mode-S code A29CA9?
A29CA9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2679Z.
Where is Mode-S A29CA9 registered?
Mode-S code A29CA9 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 A29CA9 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 18:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A29CA9, octal 50516251, decimal 10,656,937.
What flights does A29CA9 operate?
Mode-S A29CA9 has broadcast 1 distinct callsign, including N2679Z.