Apparatus

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sensors Mode-S transponder

A029ED

ICAO 24-bit transponder address · allocated to United States

Hex
A029ED
Octal
50024755
Decimal
10,496,493
Country
US
No current signal · last broadcast 2d ago
Flights observed
56
Distinct callsigns
3
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A029ED.

Country allocation

The ICAO 24-bit address A029ED 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 3 distinct

Callsign Airline Flights Last seen
8CX - 46 2026-07-20
N11AU - 8 2026-05-11
VH8CX - 2 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 8CX ADL → WMB Jul 20, 07:30 UTCJul 20, 08:40 UTC1h 10m
2026-07-20 8CX - Jul 20, 04:35 UTCJul 20, 05:55 UTC1h 20m
2026-07-20 8CX MEB → WMB Jul 20, 01:20 UTCJul 20, 02:00 UTC40m
2026-07-19 8CX - Jul 19, 21:30 UTCJul 19, 22:05 UTC35m
2026-07-19 8CX MEB → WMB Jul 19, 04:30 UTCJul 19, 05:10 UTC40m
2026-07-19 8CX WMB → MEB Jul 19, 03:05 UTCJul 19, 03:40 UTC35m
2026-07-17 8CX MEB → WMB Jul 17, 02:20 UTCJul 17, 02:54 UTC35m
2026-07-16 8CX - Jul 16, 20:49 UTCJul 16, 21:25 UTC35m
2026-07-12 8CX - Jul 12, 01:30 UTCJul 12, 02:20 UTC50m
2026-07-12 8CX WMB → MEB Jul 12, 00:30 UTCJul 12, 01:00 UTC30m
2026-06-21 8CX MBW → WMB Jun 21, 21:49 UTCJun 21, 22:24 UTC35m
2026-06-21 8CX WMB → MBW Jun 21, 07:59 UTCJun 21, 08:40 UTC40m
2026-06-19 8CX MBW → WMB Jun 19, 03:55 UTCJun 19, 04:44 UTC50m
2026-06-19 8CX WMB → MBW Jun 19, 01:39 UTCJun 19, 02:29 UTC50m
2026-06-18 8CX WMB → WMB Jun 18, 06:10 UTCJun 18, 08:40 UTC2h 30m
2026-06-17 8CX - Jun 17, 10:25 UTCJun 17, 11:25 UTC1h 0m
2026-06-16 8CX - Jun 16, 01:00 UTCJun 16, 02:00 UTC1h 0m
2026-06-12 8CX - Jun 12, 10:55 UTCJun 12, 11:55 UTC1h 0m
2026-06-12 8CX - Jun 12, 09:15 UTCJun 12, 10:00 UTC45m
2026-06-11 8CX - Jun 11, 03:40 UTCJun 11, 04:25 UTC45m
2026-06-08 8CX - Jun 8, 20:00 UTCJun 8, 22:30 UTC2h 30m
2026-06-08 8CX WMB → WMB Jun 8, 01:25 UTCJun 8, 02:50 UTC1h 25m
2026-06-07 8CX MEB → WMB Jun 7, 03:45 UTCJun 7, 04:20 UTC35m
2026-06-07 8CX WMB → MEB Jun 7, 02:25 UTCJun 7, 02:55 UTC30m
2026-06-05 8CX MEB → WMB Jun 5, 06:35 UTCJun 5, 07:25 UTC50m
2026-06-05 8CX - Jun 5, 04:05 UTCJun 5, 05:15 UTC1h 10m
2026-06-05 8CX - Jun 5, 02:40 UTCJun 5, 03:10 UTC30m
2026-06-05 8CX MEB → MEB Jun 5, 00:20 UTCJun 5, 00:50 UTC30m
2026-06-04 8CX WMB → MEB Jun 4, 22:35 UTCJun 4, 23:10 UTC35m
2026-06-03 8CX - Jun 3, 06:25 UTCJun 3, 07:20 UTC55m
2026-06-03 8CX - Jun 3, 04:00 UTCJun 3, 04:35 UTC35m
2026-06-03 8CX - Jun 3, 03:20 UTCJun 3, 03:30 UTC10m
2026-06-01 8CX - Jun 1, 04:20 UTCJun 1, 06:25 UTC2h 5m
2026-05-28 8CX MBW → WMB May 28, 06:00 UTCMay 28, 06:40 UTC40m
2026-05-28 8CX WMB → MBW May 28, 00:25 UTCMay 28, 01:00 UTC35m
2026-05-26 8CX - May 26, 22:50 UTCMay 26, 23:29 UTC40m
2026-05-26 8CX WMB → MEB May 26, 21:14 UTCMay 26, 22:15 UTC1h 0m
2026-05-26 8CX - May 26, 04:50 UTCMay 26, 05:34 UTC45m
2026-05-26 8CX - May 26, 03:05 UTCMay 26, 03:50 UTC45m
2026-05-26 8CX WMB → WMB May 26, 00:54 UTCMay 26, 02:15 UTC1h 20m
2026-05-19 8CX - May 19, 08:25 UTCMay 19, 09:05 UTC40m
2026-05-19 8CX - May 19, 07:15 UTCMay 19, 07:50 UTC35m
2026-05-19 8CX MEB → WMB May 19, 05:05 UTCMay 19, 05:40 UTC35m
2026-05-18 8CX - May 18, 22:45 UTCMay 18, 23:25 UTC40m
2026-05-18 8CX - May 18, 03:25 UTCMay 18, 05:05 UTC1h 40m
2026-05-14 8CX - May 14, 08:45 UTCMay 14, 09:30 UTC45m
2026-05-13 VH8CX - May 13, 11:15 UTCMay 13, 12:15 UTC1h 0m
2026-05-12 VH8CX - May 12, 16:25 UTCMay 12, 17:30 UTC1h 5m
2026-05-11 N11AU - May 11, 18:00 UTCMay 11, 21:30 UTC3h 30m
2026-05-11 N11AU - May 11, 12:40 UTCMay 11, 17:00 UTC4h 20m

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.

Mode-S A029ED frequently asked

What is Mode-S code A029ED?
A029ED is an ICAO 24-bit transponder address. Allocated to United States.
Where is Mode-S A029ED registered?
Mode-S code A029ED 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 A029ED broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A029ED, octal 50024755, decimal 10,496,493.
What flights does A029ED operate?
Mode-S A029ED has broadcast 3 distinct callsigns, including 8CX, N11AU, VH8CX.