Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AC79A3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N9025B · AIRBUS A-319 · operated by UMB BANK NA TRUSTEE

Hex
AC79A3
Octal
53074643
Decimal
11,303,331
Country
US
Tail
N9025B
Type
A319
No current signal · last broadcast Jul 26, 22:05 UTC
Flights observed
533
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:05 UTC

Last known position

Most recent position reported by Mode-S AC79A3.

Country allocation

The ICAO 24-bit address AC79A3 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 20 distinct

Callsign Airline Flights Last seen
AAL3133 American Airlines 12 2026-05-17
AAL3294 - 11 2026-07-15
AAL1878 - 10 2026-07-09
AAL3268 American Airlines 9 2026-04-19
AAL2122 American Airlines 9 2026-07-25
AAL1762 - 9 2026-07-09
AAL2741 - 8 2026-07-17
AAL2312 American Airlines 8 2026-07-26
AAL883 American Airlines 7 2026-07-24
AAL657 - 7 2026-07-16
AAL2392 American Airlines 7 2026-06-06
AAL797 - 6 2026-06-28
AAL2952 - 6 2026-07-11
AAL2604 American Airlines 6 2026-05-12
AAL2432 American Airlines 6 2026-06-02
AAL2431 - 6 2026-07-15
AAL1923 - 6 2026-06-19
AAL1814 American Airlines 6 2026-07-25
AAL1477 American Airlines 6 2026-05-13
AAL867 - 5 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL2312 DCA → LGA Jul 26, 21:15 UTCJul 26, 22:00 UTC45m
2026-07-26 AAL2312 DCA → LGA Jul 26, 19:15 UTCJul 26, 20:00 UTC45m
2026-07-26 AAL1117 CLT → LAX Jul 26, 15:37 UTCJul 26, 17:36 UTC1h 59m
2026-07-26 AAL825 PHL → BDA Jul 26, 12:35 UTCJul 26, 18:00 UTC5h 25m
2026-07-25 AAL3147 LAX → ELP Jul 25, 22:45 UTCJul 26, 01:10 UTC2h 25m
2026-07-25 AAL1814 DFW → PHL Jul 25, 18:55 UTCJul 25, 21:05 UTC2h 10m
2026-07-25 AAL1814 DFW → PHL Jul 25, 18:50 UTCJul 25, 21:23 UTC2h 33m
2026-07-25 AAL2122 BOS → DCA Jul 25, 16:10 UTCJul 25, 17:25 UTC1h 15m
2026-07-25 AAL2122 BOS → DCA Jul 25, 14:05 UTCJul 25, 15:00 UTC55m
2026-07-25 AAL3031 CVG → DFW Jul 25, 11:20 UTCJul 25, 12:45 UTC1h 25m
2026-07-25 AAL3031 CVG → DFW Jul 25, 11:15 UTCJul 25, 12:40 UTC1h 25m
2026-07-25 AAL3122 MCO → DFW Jul 25, 02:05 UTCJul 25, 03:25 UTC1h 20m
2026-07-24 AAL883 QRO → DFW Jul 24, 22:55 UTCJul 25, 00:35 UTC1h 40m
2026-07-24 AAL883 QRO → DFW Jul 24, 22:22 UTCJul 25, 00:33 UTC2h 11m
2026-07-24 AAL1970 CVG → DFW Jul 24, 18:25 UTCJul 24, 20:35 UTC2h 10m
2026-07-24 AAL1970 CVG → DFW Jul 24, 18:24 UTCJul 24, 20:54 UTC2h 30m
2026-07-24 AAL2675 RSW → ORD Jul 24, 13:35 UTCJul 24, 16:30 UTC2h 55m
2026-07-24 AAL2661 PHL → SFO Jul 24, 02:15 UTCJul 24, 05:15 UTC3h 0m
2026-07-23 AAL3282 SLC → ORD Jul 23, 22:15 UTCJul 24, 00:35 UTC2h 20m
2026-07-23 AAL1883 PHL → MIA Jul 23, 18:30 UTCJul 23, 22:45 UTC4h 15m
2026-07-23 AAL1883 PHL → MIA Jul 23, 18:27 UTCJul 23, 20:47 UTC2h 20m
2026-07-23 AAL2122 BOS → DCA Jul 23, 15:55 UTCJul 23, 17:10 UTC1h 15m
2026-07-23 AAL2122 BOS → DCA Jul 23, 13:40 UTCJul 23, 14:50 UTC1h 10m
2026-07-23 AAL867 - Jul 23, 11:20 UTCJul 23, 12:05 UTC45m
2026-07-23 AAL867 TUL → DFW Jul 23, 11:15 UTCJul 23, 12:02 UTC47m
2026-07-23 AAL1514 LAS → AUS Jul 23, 02:25 UTCJul 23, 03:00 UTC35m
2026-07-22 AAL2956 SFO → CLT Jul 22, 22:30 UTCJul 23, 00:45 UTC2h 15m
2026-07-22 AAL2956 SFO → CLT Jul 22, 22:14 UTCJul 23, 00:49 UTC2h 35m
2026-07-22 AAL1883 PHL → MIA Jul 22, 18:40 UTCJul 22, 20:35 UTC1h 55m
2026-07-22 AAL2122 BOS → DCA Jul 22, 16:20 UTCJul 22, 17:30 UTC1h 10m
2026-07-22 AAL2122 BOS → DCA Jul 22, 14:20 UTCJul 22, 15:25 UTC1h 5m
2026-07-22 AAL3214 - Jul 22, 11:30 UTCJul 22, 12:55 UTC1h 25m
2026-07-22 AAL3067 MIA → ORD Jul 22, 03:50 UTCJul 22, 05:10 UTC1h 20m
2026-07-22 AAL3274 DFW → BOS Jul 22, 01:10 UTCJul 22, 01:55 UTC45m
2026-07-21 AAL3274 DFW → BOS Jul 21, 23:00 UTCJul 21, 23:50 UTC50m
2026-07-21 AAL305 MIA → SEA Jul 21, 19:05 UTCJul 21, 21:35 UTC2h 30m
2026-07-21 AAL1898 PHL → EYW Jul 21, 15:09 UTCJul 21, 17:54 UTC2h 45m
2026-07-21 AAL1898 PHL → EYW Jul 21, 15:10 UTCJul 21, 17:45 UTC2h 35m
2026-07-21 AAL1428 RDU → LGA Jul 21, 11:10 UTCJul 21, 12:45 UTC1h 35m
2026-07-20 AAL535 ATL → PHL Jul 20, 23:10 UTCJul 21, 00:35 UTC1h 25m
2026-07-20 AAL927 DCA → DFW Jul 20, 20:35 UTCJul 20, 20:55 UTC20m
2026-07-20 AAL927 DCA → DFW Jul 20, 18:35 UTCJul 20, 18:55 UTC20m
2026-07-20 AAL1642 MIA → ORD Jul 20, 15:25 UTCJul 20, 16:40 UTC1h 15m
2026-07-20 AAL1642 MIA → ORD Jul 20, 13:05 UTCJul 20, 14:20 UTC1h 15m
2026-07-20 AAL1135 - Jul 20, 09:30 UTCJul 20, 10:50 UTC1h 20m
2026-07-19 AAL535 ATL → PHL Jul 19, 23:00 UTCJul 20, 00:40 UTC1h 40m
2026-07-19 AAL535 ATL → PHL Jul 19, 22:57 UTCJul 20, 00:38 UTC1h 41m
2026-07-19 AAL342 - Jul 19, 19:35 UTCJul 19, 20:55 UTC1h 20m
2026-07-19 AAL172 - Jul 19, 16:45 UTCJul 19, 18:10 UTC1h 25m
2026-07-19 AAL1103 - Jul 19, 14:35 UTCJul 19, 15:00 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 N9025B page for operator, model, and routing details .

Mode-S AC79A3 frequently asked

What is Mode-S code AC79A3?
AC79A3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N9025B.
Where is Mode-S AC79A3 registered?
Mode-S code AC79A3 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 AC79A3 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC79A3, octal 53074643, decimal 11,303,331.
What flights does AC79A3 operate?
Mode-S AC79A3 has broadcast 20 distinct callsigns, including AAL3133, AAL3294, AAL1878, AAL3268, AAL2122.