Apparatus

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sensors Mode-S transponder

AD574F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N959NN · BOEING 737-800 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
AD574F
Octal
53253517
Decimal
11,360,079
Country
US
Tail
N959NN
Type
B738
No current signal · last broadcast Jul 26, 21:10 UTC
Flights observed
520
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:10 UTC

Last known position

Most recent position reported by Mode-S AD574F.

Country allocation

The ICAO 24-bit address AD574F 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
AAL537 American Airlines 6 2026-05-16
AAL2110 - 6 2026-07-10
AAL2851 - 5 2026-06-12
AAL2037 American Airlines 5 2026-06-06
AAL1935 - 5 2026-06-29
AAL893 American Airlines 4 2026-04-14
AAL815 - 4 2026-07-12
AAL435 - 4 2026-04-13
AAL3265 - 4 2026-07-07
AAL3167 American Airlines 4 2026-07-24
AAL3095 American Airlines 4 2026-07-25
AAL3088 American Airlines 4 2026-06-25
AAL3060 - 4 2026-06-23
AAL2581 American Airlines 4 2026-07-23
AAL1786 - 4 2026-06-29
AAL1181 - 4 2026-06-19
AAL985 American Airlines 3 2026-04-22
AAL924 American Airlines 3 2026-07-21
AAL3183 American Airlines 3 2026-04-29
AAL3127 - 3 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL1744 PHX → CLE Jul 26, 18:45 UTCJul 26, 21:05 UTC2h 20m
2026-07-26 AAL1744 PHX → CLE Jul 26, 15:05 UTCJul 26, 17:10 UTC2h 5m
2026-07-26 AAL2102 DFW → PNS Jul 26, 11:15 UTCJul 26, 13:30 UTC2h 15m
2026-07-25 AAL2449 DFW → JAX Jul 25, 23:40 UTCJul 26, 01:35 UTC1h 55m
2026-07-25 AAL2262 JFK → PHX Jul 25, 19:25 UTCJul 25, 22:05 UTC2h 40m
2026-07-25 AAL2262 JFK → PHX Jul 25, 15:35 UTCJul 25, 18:05 UTC2h 30m
2026-07-25 AAL3095 ORD → CLT Jul 25, 12:55 UTCJul 25, 13:40 UTC45m
2026-07-25 AAL3095 ORD → CLT Jul 25, 12:53 UTCJul 25, 13:43 UTC50m
2026-07-25 AAL531 ATL → PHL Jul 25, 04:05 UTCJul 25, 04:50 UTC45m
2026-07-24 AAL2399 PHL → PBI Jul 24, 21:30 UTCJul 25, 02:30 UTC5h 0m
2026-07-24 AAL3167 SJC → LAX Jul 24, 17:40 UTCJul 24, 19:50 UTC2h 10m
2026-07-24 AAL3167 SJC → LAX Jul 24, 14:05 UTCJul 24, 16:05 UTC2h 0m
2026-07-24 AAL1108 DTW → DFW Jul 24, 09:40 UTCJul 24, 11:55 UTC2h 15m
2026-07-24 AAL1108 DTW → DFW Jul 24, 09:39 UTCJul 24, 11:55 UTC2h 16m
2026-07-24 AAL2649 CMH → PHL Jul 24, 01:05 UTCJul 24, 03:50 UTC2h 45m
2026-07-23 AAL2581 DFW → MKE Jul 23, 22:45 UTCJul 23, 23:10 UTC25m
2026-07-23 AAL2581 DFW → MKE Jul 23, 21:00 UTCJul 23, 21:15 UTC15m
2026-07-23 AAL2581 DFW → MKE Jul 23, 19:15 UTCJul 23, 19:30 UTC15m
2026-07-23 AAL2581 DFW → MKE Jul 23, 17:15 UTCJul 23, 17:35 UTC20m
2026-07-23 AAL902 CID → DFW Jul 23, 12:57 UTCJul 23, 15:12 UTC2h 15m
2026-07-22 AAL901 PHL → PIT Jul 22, 22:50 UTCJul 23, 15:15 UTC16h 25m
2026-07-22 AAL2249 BOS → JFK Jul 22, 19:50 UTCJul 22, 20:15 UTC25m
2026-07-22 AAL2249 BOS → JFK Jul 22, 19:36 UTCJul 22, 20:15 UTC39m
2026-07-22 AAL2249 BOS → JFK Jul 22, 17:15 UTCJul 22, 17:35 UTC20m
2026-07-22 AAL2450 VRA → MIA Jul 22, 14:45 UTCJul 22, 15:15 UTC30m
2026-07-22 AAL1807 SFO → CLT Jul 22, 12:45 UTCJul 22, 13:10 UTC25m
2026-07-21 AAL378 BGI → PHL Jul 21, 16:30 UTCJul 21, 21:15 UTC4h 45m
2026-07-21 AAL924 MDE → MIA Jul 21, 11:25 UTCJul 21, 14:15 UTC2h 50m
2026-07-21 AAL923 - Jul 21, 02:20 UTCJul 21, 05:10 UTC2h 50m
2026-07-21 AAL923 MIA → MDE Jul 21, 02:16 UTCJul 21, 05:14 UTC2h 58m
2026-07-20 AAL2217 MIA → AUA Jul 20, 21:10 UTCJul 20, 23:35 UTC2h 25m
2026-07-20 AAL2217 MIA → AUA Jul 20, 21:06 UTCJul 20, 23:33 UTC2h 27m
2026-07-20 AAL2217 MIA → AUA Jul 20, 17:05 UTCJul 20, 19:25 UTC2h 20m
2026-07-20 AAL1591 - Jul 20, 14:05 UTCJul 20, 15:45 UTC1h 40m
2026-07-20 AAL1591 MSY → MIA Jul 20, 14:01 UTCJul 20, 15:44 UTC1h 43m
2026-07-20 AAL2552 - Jul 20, 03:15 UTCJul 20, 04:45 UTC1h 30m
2026-07-20 AAL2552 MIA → MSY Jul 20, 03:12 UTCJul 20, 04:45 UTC1h 33m
2026-07-19 AAL1619 PHL → MCI Jul 19, 23:30 UTCJul 20, 01:45 UTC2h 15m
2026-07-19 AAL1622 - Jul 19, 21:15 UTCJul 19, 22:20 UTC1h 5m
2026-07-19 AAL2052 - Jul 19, 17:45 UTCJul 19, 19:35 UTC1h 50m
2026-07-19 AAL2052 - Jul 19, 14:45 UTCJul 19, 16:35 UTC1h 50m
2026-07-19 AAL1119 - Jul 19, 11:05 UTCJul 19, 13:30 UTC2h 25m
2026-07-19 AAL1599 DFW → SAT Jul 19, 04:16 UTCJul 19, 04:55 UTC39m
2026-07-19 AAL1599 DFW → SAT Jul 19, 04:15 UTCJul 19, 04:55 UTC40m
2026-07-18 AAL1624 DCA → DFW Jul 18, 23:25 UTCJul 19, 02:14 UTC2h 49m
2026-07-18 AAL1624 DCA → DFW Jul 18, 23:25 UTCJul 19, 02:15 UTC2h 50m
2026-07-18 AAL1624 DFW → DCA Jul 18, 14:55 UTCJul 18, 17:30 UTC2h 35m
2026-07-18 AAL955 LGA → DFW Jul 18, 11:50 UTCJul 18, 12:55 UTC1h 5m
2026-07-18 AAL2267 DFW → MCI Jul 18, 01:54 UTCJul 18, 03:00 UTC1h 6m
2026-07-17 AAL2060 SJU → PHL Jul 17, 21:05 UTCJul 17, 23:55 UTC2h 50m

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 N959NN page for operator, model, and routing details .

Mode-S AD574F frequently asked

What is Mode-S code AD574F?
AD574F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N959NN.
Where is Mode-S AD574F registered?
Mode-S code AD574F 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 AD574F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD574F, octal 53253517, decimal 11,360,079.
What flights does AD574F operate?
Mode-S AD574F has broadcast 20 distinct callsigns, including AAL537, AAL2110, AAL2851, AAL2037, AAL1935.