Apparatus

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sensors Mode-S transponder

AA1F97

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N751UW · AIRBUS A-319 · operated by BANK OF UTAH TRUSTEE

Hex
AA1F97
Octal
52417627
Decimal
11,149,207
Country
US
Tail
N751UW
Type
A319
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
587
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S AA1F97.

Country allocation

The ICAO 24-bit address AA1F97 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
AAL2736 - 10 2026-07-20
AAL2625 - 8 2026-07-15
AAL2314 American Airlines 8 2026-07-24
AAL2141 American Airlines 8 2026-07-23
AAL928 - 6 2026-07-04
AAL3041 American Airlines 6 2026-06-07
AAL2856 American Airlines 6 2026-07-24
AAL2347 American Airlines 6 2026-06-04
AAL2007 American Airlines 6 2026-07-24
AAL1791 - 6 2026-06-29
AAL815 American Airlines 5 2026-05-12
AAL644 American Airlines 5 2026-07-26
AAL3291 American Airlines 5 2026-05-13
AAL3275 American Airlines 5 2026-07-23
AAL3254 American Airlines 5 2026-04-22
AAL3170 American Airlines 5 2026-06-07
AAL2706 - 5 2026-06-20
AAL2512 American Airlines 5 2026-07-22
AAL2038 American Airlines 5 2026-05-13
AAL1876 - 5 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL2174 MIA → ORD Jul 26, 21:30 UTCJul 26, 21:45 UTC15m
2026-07-26 AAL2174 MIA → ORD Jul 26, 19:05 UTCJul 26, 20:25 UTC1h 20m
2026-07-26 AAL2395 LGA → RDU Jul 26, 16:55 UTCJul 26, 17:45 UTC50m
2026-07-26 AAL2395 LGA → RDU Jul 26, 16:53 UTCJul 26, 17:40 UTC47m
2026-07-26 AAL2395 LGA → RDU Jul 26, 15:05 UTCJul 26, 15:55 UTC50m
2026-07-26 AAL3269 FLL → ORD Jul 26, 10:15 UTCJul 26, 11:10 UTC55m
2026-07-26 AAL3269 FLL → ORD Jul 26, 10:10 UTCJul 26, 11:09 UTC59m
2026-07-26 AAL3067 MIA → ORD Jul 26, 03:35 UTCJul 26, 04:50 UTC1h 15m
2026-07-26 AAL644 SAN → ORD Jul 26, 00:30 UTCJul 26, 02:20 UTC1h 50m
2026-07-25 AAL644 SAN → ORD Jul 25, 21:50 UTCJul 25, 23:35 UTC1h 45m
2026-07-25 AAL1792 ORD → CLT Jul 25, 18:10 UTCJul 25, 20:15 UTC2h 5m
2026-07-25 AAL1792 ORD → CLT Jul 25, 13:55 UTCJul 25, 16:15 UTC2h 20m
2026-07-25 AAL2091 LAX → MCO Jul 25, 11:25 UTCJul 25, 12:40 UTC1h 15m
2026-07-25 AAL872 CVG → PHX Jul 25, 05:00 UTCJul 25, 06:05 UTC1h 5m
2026-07-25 AAL2232 MSY → DFW Jul 25, 01:50 UTCJul 25, 03:10 UTC1h 20m
2026-07-24 AAL2232 MSY → DFW Jul 24, 23:35 UTCJul 25, 01:00 UTC1h 25m
2026-07-24 AAL2856 MTJ → LGA Jul 24, 20:30 UTCJul 24, 21:55 UTC1h 25m
2026-07-24 AAL2856 MTJ → LGA Jul 24, 16:50 UTCJul 24, 18:10 UTC1h 20m
2026-07-24 AAL2007 PHX → PHL Jul 24, 13:30 UTCJul 24, 15:30 UTC2h 0m
2026-07-24 AAL2007 PHX → PHL Jul 24, 13:27 UTCJul 24, 15:29 UTC2h 2m
2026-07-24 AAL876P CLT → MHT Jul 24, 10:15 UTCJul 24, 12:05 UTC1h 50m
2026-07-24 AAL2314 BWI → DFW Jul 24, 05:05 UTCJul 24, 06:25 UTC1h 20m
2026-07-24 AAL2314 BWI → DFW Jul 24, 02:55 UTCJul 24, 04:20 UTC1h 25m
2026-07-23 AAL2141 DCA → BOS Jul 23, 23:25 UTCJul 24, 01:20 UTC1h 55m
2026-07-23 AAL2141 DCA → BOS Jul 23, 19:50 UTCJul 23, 21:40 UTC1h 50m
2026-07-23 AAL3275 LAS → DCA Jul 23, 17:20 UTCJul 23, 18:05 UTC45m
2026-07-23 AAL3275 LAS → DCA Jul 23, 15:20 UTCJul 23, 16:10 UTC50m
2026-07-23 AAL3266 CMH → DFW Jul 23, 11:10 UTCJul 23, 13:35 UTC2h 25m
2026-07-23 AAL1841 MSY → CLT Jul 23, 03:00 UTCJul 23, 05:20 UTC2h 20m
2026-07-23 AAL1762 PHX → PHL Jul 23, 00:15 UTCJul 23, 01:45 UTC1h 30m
2026-07-22 AAL1762 PHX → PHL Jul 22, 21:55 UTCJul 22, 23:20 UTC1h 25m
2026-07-22 AAL2512 MIA → ORD Jul 22, 19:25 UTCJul 22, 20:00 UTC35m
2026-07-22 AAL2512 MIA → ORD Jul 22, 17:25 UTCJul 22, 18:15 UTC50m
2026-07-22 AAL3194 ORD → LAX Jul 22, 13:39 UTCJul 22, 15:07 UTC1h 28m
2026-07-22 AAL3194 ORD → LAX Jul 22, 13:40 UTCJul 22, 14:55 UTC1h 15m
2026-07-22 AAL2761 DCA → PHX Jul 22, 00:25 UTCJul 22, 01:45 UTC1h 20m
2026-07-22 AAL2761 DCA → PHX Jul 22, 00:22 UTCJul 22, 01:44 UTC1h 22m
2026-07-21 AAL807 ATL → ORD Jul 21, 21:15 UTCJul 21, 23:05 UTC1h 50m
2026-07-21 AAL807 ATL → ORD Jul 21, 21:01 UTCJul 21, 23:02 UTC2h 1m
2026-07-21 AAL810 - Jul 21, 17:45 UTCJul 21, 19:30 UTC1h 45m
2026-07-21 AAL810 DFW → FLG Jul 21, 17:44 UTCJul 21, 19:39 UTC1h 55m
2026-07-21 AAL2621 - Jul 21, 12:35 UTCJul 21, 14:30 UTC1h 55m
2026-07-21 AAL2621 MKE → DFW Jul 21, 12:34 UTCJul 21, 14:31 UTC1h 57m
2026-07-21 AAL1369 TPA → DFW Jul 21, 01:45 UTCJul 21, 04:50 UTC3h 5m
2026-07-21 AAL2929 - Jul 21, 00:05 UTCJul 21, 00:45 UTC40m
2026-07-20 AAL2929 - Jul 20, 22:30 UTCJul 20, 23:00 UTC30m
2026-07-20 AAL3077 - Jul 20, 20:00 UTCJul 20, 21:20 UTC1h 20m
2026-07-20 AAL3077 PHX → SBP Jul 20, 17:25 UTCJul 20, 18:35 UTC1h 10m
2026-07-20 AAL2132 LGA → MSY Jul 20, 13:00 UTCJul 20, 16:05 UTC3h 5m
2026-07-20 AAL1234 DFW → MKE Jul 20, 03:15 UTCJul 20, 05:10 UTC1h 55m

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 N751UW page for operator, model, and routing details .

Mode-S AA1F97 frequently asked

What is Mode-S code AA1F97?
AA1F97 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N751UW.
Where is Mode-S AA1F97 registered?
Mode-S code AA1F97 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 AA1F97 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA1F97, octal 52417627, decimal 11,149,207.
What flights does AA1F97 operate?
Mode-S AA1F97 has broadcast 20 distinct callsigns, including AAL2736, AAL2625, AAL2314, AAL2141, AAL928.