Apparatus

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sensors Mode-S transponder

A434AC

ICAO 24-bit transponder address · allocated to United States

Hex
A434AC
Octal
51032254
Decimal
10,761,388
Country
US
No current signal · last broadcast Jul 26, 17:10 UTC
Flights observed
138
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 17:10 UTC

Last known position

Most recent position reported by Mode-S A434AC.

Country allocation

The ICAO 24-bit address A434AC 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
N370K - 138 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N370K - Jul 26, 16:00 UTCJul 26, 17:10 UTC1h 10m
2026-07-26 N370K PWA → PWA Jul 26, 00:00 UTCJul 26, 00:50 UTC50m
2026-07-25 N370K - Jul 25, 19:05 UTCJul 25, 19:55 UTC50m
2026-07-25 N370K - Jul 25, 17:00 UTCJul 25, 17:40 UTC40m
2026-07-25 N370K - Jul 25, 14:50 UTCJul 25, 15:45 UTC55m
2026-07-25 N370K - Jul 25, 00:50 UTCJul 25, 01:45 UTC55m
2026-07-24 N370K - Jul 24, 22:55 UTCJul 24, 23:50 UTC55m
2026-07-24 N370K - Jul 24, 21:05 UTCJul 24, 21:55 UTC50m
2026-07-24 N370K PWA → PWA Jul 24, 02:35 UTCJul 24, 03:30 UTC55m
2026-07-23 N370K - Jul 23, 22:10 UTCJul 23, 22:50 UTC40m
2026-07-23 N370K - Jul 23, 18:40 UTCJul 23, 19:45 UTC1h 5m
2026-07-22 N370K - Jul 22, 20:30 UTCJul 22, 21:40 UTC1h 10m
2026-07-22 N370K PWA → PWA Jul 22, 18:05 UTCJul 22, 19:05 UTC1h 0m
2026-07-22 N370K - Jul 22, 14:55 UTCJul 22, 15:45 UTC50m
2026-07-21 N370K - Jul 21, 14:55 UTCJul 21, 15:55 UTC1h 0m
2026-07-20 N370K - Jul 20, 19:20 UTCJul 20, 20:45 UTC1h 25m
2026-07-20 N370K - Jul 20, 18:10 UTCJul 20, 18:20 UTC10m
2026-07-20 N370K - Jul 20, 15:00 UTCJul 20, 16:45 UTC1h 45m
2026-07-19 N370K - Jul 19, 18:55 UTCJul 19, 19:50 UTC55m
2026-07-19 N370K - Jul 19, 16:50 UTCJul 19, 17:20 UTC30m
2026-07-19 N370K - Jul 19, 14:40 UTCJul 19, 15:50 UTC1h 10m
2026-07-18 N370K - Jul 18, 17:20 UTCJul 18, 18:00 UTC40m
2026-07-18 N370K - Jul 18, 16:05 UTCJul 18, 16:40 UTC35m
2026-07-18 N370K PWA → PWA Jul 18, 14:10 UTCJul 18, 14:45 UTC35m
2026-07-17 N370K - Jul 17, 21:10 UTCJul 17, 22:35 UTC1h 25m
2026-07-17 N370K AUS → PWA Jul 17, 03:45 UTCJul 17, 06:15 UTC2h 30m
2026-07-16 N370K - Jul 16, 22:15 UTCJul 17, 01:49 UTC3h 35m
2026-07-16 N370K - Jul 16, 16:40 UTCJul 16, 17:49 UTC1h 10m
2026-07-15 N370K - Jul 15, 18:05 UTCJul 15, 18:40 UTC35m
2026-07-15 N370K - Jul 15, 12:45 UTCJul 15, 13:40 UTC55m
2026-07-14 N370K - Jul 14, 20:15 UTCJul 14, 21:00 UTC45m
2026-07-14 N370K - Jul 14, 19:05 UTCJul 14, 19:35 UTC30m
2026-07-13 N370K PWA → PWA Jul 13, 18:40 UTCJul 13, 19:35 UTC55m
2026-07-13 N370K - Jul 13, 16:35 UTCJul 13, 17:10 UTC35m
2026-07-10 N370K PWA → PWA Jul 10, 17:05 UTCJul 10, 17:45 UTC40m
2026-07-09 N370K PWA → PWA Jul 9, 21:05 UTCJul 9, 21:50 UTC45m
2026-07-09 N370K PWA → PWA Jul 9, 17:20 UTCJul 9, 19:00 UTC1h 40m
2026-07-08 N370K - Jul 8, 19:15 UTCJul 8, 19:55 UTC40m
2026-07-08 N370K PWA → PWA Jul 8, 16:40 UTCJul 8, 17:50 UTC1h 10m
2026-07-07 N370K PWA → PWA Jul 7, 23:20 UTCJul 8, 01:00 UTC1h 40m
2026-07-07 N370K - Jul 7, 18:45 UTCJul 7, 19:45 UTC1h 0m
2026-07-07 N370K - Jul 7, 16:40 UTCJul 7, 17:45 UTC1h 5m
2026-07-06 N370K PWA → PWA Jul 6, 20:45 UTCJul 6, 21:45 UTC1h 0m
2026-07-06 N370K - Jul 6, 18:55 UTCJul 6, 19:55 UTC1h 0m
2026-07-06 N370K - Jul 6, 15:55 UTCJul 6, 16:55 UTC1h 0m
2026-07-04 N370K - Jul 4, 15:10 UTCJul 4, 15:45 UTC35m
2026-07-02 N370K - Jul 2, 17:05 UTCJul 2, 17:50 UTC45m
2026-07-02 N370K PWA → PWA Jul 2, 15:25 UTCJul 2, 16:05 UTC40m
2026-07-01 N370K - Jul 1, 23:45 UTCJul 2, 00:55 UTC1h 10m
2026-07-01 N370K - Jul 1, 21:40 UTCJul 1, 22:50 UTC1h 10m

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 A434AC frequently asked

What is Mode-S code A434AC?
A434AC is an ICAO 24-bit transponder address. Allocated to United States.
Where is Mode-S A434AC registered?
Mode-S code A434AC 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 A434AC broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A434AC, octal 51032254, decimal 10,761,388.
What flights does A434AC operate?
Mode-S A434AC has broadcast 1 distinct callsign, including N370K.