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sensors Mode-S transponder

A04229

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N1157X · PIPER PA-28-140/150/160/180 · operated by ASCEND AVIATION LLC

Hex
A04229
Octal
50041051
Decimal
10,502,697
Country
US
Tail
N1157X
Type
P28A
No current signal · last broadcast 10h ago
Flights observed
132
Distinct callsigns
1
Country
US
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S A04229.

Country allocation

The ICAO 24-bit address A04229 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
N1157X - 132 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 N1157X - Jul 17, 13:55 UTCJul 17, 15:49 UTC1h 55m
2026-07-16 N1157X - Jul 16, 23:10 UTCJul 16, 23:49 UTC40m
2026-07-16 N1157X - Jul 16, 00:15 UTCJul 16, 01:45 UTC1h 30m
2026-07-15 N1157X - Jul 15, 16:35 UTCJul 15, 18:00 UTC1h 25m
2026-07-15 N1157X - Jul 15, 13:40 UTCJul 15, 14:55 UTC1h 15m
2026-07-15 N1157X - Jul 15, 00:30 UTCJul 15, 01:50 UTC1h 20m
2026-07-14 N1157X BTF → BTF Jul 14, 15:05 UTCJul 14, 15:50 UTC45m
2026-07-14 N1157X - Jul 14, 01:15 UTCJul 14, 02:30 UTC1h 15m
2026-07-11 N1157X - Jul 11, 13:15 UTCJul 11, 14:25 UTC1h 10m
2026-07-11 N1157X - Jul 11, 00:10 UTCJul 11, 00:30 UTC20m
2026-07-10 N1157X - Jul 10, 23:40 UTCJul 11, 00:05 UTC25m
2026-07-10 N1157X - Jul 10, 15:15 UTCJul 10, 17:15 UTC2h 0m
2026-07-09 N1157X - Jul 9, 23:40 UTCJul 10, 00:45 UTC1h 5m
2026-07-09 N1157X - Jul 9, 17:45 UTCJul 9, 18:40 UTC55m
2026-07-09 N1157X - Jul 9, 15:30 UTCJul 9, 16:45 UTC1h 15m
2026-07-09 N1157X - Jul 9, 13:45 UTCJul 9, 14:30 UTC45m
2026-07-08 N1157X - Jul 8, 00:45 UTCJul 8, 02:25 UTC1h 40m
2026-07-07 N1157X - Jul 7, 16:45 UTCJul 7, 17:30 UTC45m
2026-07-05 N1157X - Jul 5, 16:35 UTCJul 5, 17:20 UTC45m
2026-07-03 N1157X - Jul 3, 13:30 UTCJul 3, 14:20 UTC50m
2026-07-02 N1157X - Jul 2, 23:35 UTCJul 3, 00:50 UTC1h 15m
2026-07-02 N1157X - Jul 2, 19:10 UTCJul 2, 20:10 UTC1h 0m
2026-07-02 N1157X - Jul 2, 13:45 UTCJul 2, 15:20 UTC1h 35m
2026-07-02 N1157X BTF → BTF Jul 2, 00:40 UTCJul 2, 02:00 UTC1h 20m
2026-07-01 N1157X BTF → BTF Jul 1, 16:45 UTCJul 1, 18:00 UTC1h 15m
2026-06-30 N1157X - Jun 30, 00:00 UTCJun 30, 00:55 UTC55m
2026-06-28 N1157X - Jun 28, 14:54 UTCJun 28, 16:05 UTC1h 10m
2026-06-24 N1157X - Jun 24, 16:50 UTCJun 24, 18:15 UTC1h 25m
2026-06-24 N1157X - Jun 24, 14:39 UTCJun 24, 15:29 UTC50m
2026-06-23 N1157X - Jun 23, 23:10 UTCJun 23, 23:50 UTC40m
2026-06-23 N1157X - Jun 23, 16:24 UTCJun 23, 17:15 UTC50m
2026-06-23 N1157X - Jun 23, 00:54 UTCJun 23, 01:40 UTC45m
2026-06-23 N1157X LGU → LGU Jun 23, 00:30 UTCJun 23, 00:39 UTC10m
2026-06-22 N1157X - Jun 22, 23:39 UTCJun 23, 00:24 UTC45m
2026-06-22 N1157X - Jun 22, 17:44 UTCJun 22, 18:24 UTC40m
2026-06-21 N1157X - Jun 21, 14:50 UTCJun 21, 15:44 UTC55m
2026-06-21 N1157X - Jun 21, 13:59 UTCJun 21, 14:44 UTC45m
2026-06-19 N1157X - Jun 19, 14:54 UTCJun 19, 15:34 UTC40m
2026-06-18 N1157X - Jun 18, 14:35 UTCJun 18, 15:05 UTC30m
2026-06-18 N1157X - Jun 18, 00:35 UTCJun 18, 01:40 UTC1h 5m
2026-06-17 N1157X BTF → BTF Jun 17, 14:25 UTCJun 17, 14:55 UTC30m
2026-06-17 N1157X - Jun 17, 00:55 UTCJun 17, 02:30 UTC1h 35m
2026-06-16 N1157X - Jun 16, 23:20 UTCJun 16, 23:45 UTC25m
2026-06-16 N1157X - Jun 16, 21:15 UTCJun 16, 21:45 UTC30m
2026-06-16 N1157X - Jun 16, 19:45 UTCJun 16, 20:40 UTC56m
2026-06-16 N1157X - Jun 16, 02:40 UTCJun 16, 03:25 UTC45m
2026-06-15 N1157X - Jun 15, 23:35 UTCJun 16, 00:45 UTC1h 10m
2026-06-15 N1157X BTF → BTF Jun 15, 14:45 UTCJun 15, 15:55 UTC1h 10m
2026-06-13 N1157X - Jun 13, 16:40 UTCJun 13, 17:35 UTC55m
2026-06-12 N1157X - Jun 12, 21:30 UTCJun 12, 22:30 UTC1h 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 N1157X page for operator, model, and routing details .

Mode-S A04229 frequently asked

What is Mode-S code A04229?
A04229 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N1157X.
Where is Mode-S A04229 registered?
Mode-S code A04229 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 A04229 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A04229, octal 50041051, decimal 10,502,697.
What flights does A04229 operate?
Mode-S A04229 has broadcast 1 distinct callsign, including N1157X.