Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AD0725

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N939AN · BOEING 737-800 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
AD0725
Octal
53203445
Decimal
11,339,557
Country
US
Tail
N939AN
Type
B738
Broadcasting now · callsign AAL1172 · 9,400 ft
Flights observed
553
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:05 UTC

Current position

AD0725 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AD0725 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
AAL9 - 7 2026-07-02
AAL1877 American Airlines 6 2026-07-22
AAL1796 American Airlines 6 2026-07-26
AAL1529 American Airlines 5 2026-06-12
AAL392 - 4 2026-06-21
AAL3325 American Airlines 4 2026-04-27
AAL3300 - 4 2026-06-16
AAL3063 American Airlines 4 2026-06-19
AAL2829 American Airlines 4 2026-04-16
AAL1818 American Airlines 4 2026-04-17
AAL1697 American Airlines 4 2026-07-21
AAL1629 - 4 2026-06-11
AAL1364 - 4 2026-06-19
AAL1312 American Airlines 4 2026-04-27
AAL706 - 3 2026-07-12
AAL584 American Airlines 3 2026-04-13
AAL3235 American Airlines 3 2026-05-29
AAL3215 American Airlines 3 2026-05-10
AAL2976 American Airlines 3 2026-04-27
AAL2926 - 3 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL1796 EWR → DFW Jul 26, 18:30 UTCJul 26, 20:05 UTC1h 35m
2026-07-26 AAL3052 RTB → DFW Jul 26, 15:05 UTCJul 26, 16:50 UTC1h 45m
2026-07-26 AAL1064 AUS → DFW Jul 26, 11:00 UTCJul 26, 13:25 UTC2h 25m
2026-07-26 AAL1588 SKB → JFK Jul 26, 04:05 UTCJul 26, 04:40 UTC35m
2026-07-26 AAL2868 DCA → LGA Jul 26, 00:00 UTCJul 26, 01:40 UTC1h 40m
2026-07-25 AAL3151 LAX → PIT Jul 25, 20:45 UTCJul 25, 22:05 UTC1h 20m
2026-07-25 AAL3151 LAX → PIT Jul 25, 20:42 UTCJul 25, 22:30 UTC1h 48m
2026-07-25 AAL2428 PHL → ORD Jul 25, 16:05 UTCJul 25, 18:20 UTC2h 15m
2026-07-25 AAL2428 PHL → ORD Jul 25, 12:30 UTCJul 25, 14:45 UTC2h 15m
2026-07-25 AAL808 DFW → PHL Jul 25, 00:47 UTCJul 25, 03:46 UTC2h 59m
2026-07-25 AAL808 DFW → PHL Jul 25, 00:50 UTCJul 25, 03:55 UTC3h 5m
2026-07-24 AAL2819 JFK → ORD Jul 24, 20:45 UTCJul 24, 22:15 UTC1h 30m
2026-07-24 AAL1598 LAX → ORD Jul 24, 15:10 UTCJul 24, 18:50 UTC3h 40m
2026-07-23 AAL2301 CLT → BUF Jul 23, 22:40 UTCJul 24, 03:00 UTC4h 20m
2026-07-23 AAL2301 CLT → BUF Jul 23, 16:40 UTCJul 23, 20:50 UTC4h 10m
2026-07-23 AAL598 MSY → MIA Jul 23, 11:10 UTCJul 23, 15:00 UTC3h 50m
2026-07-22 AAL1939 BOS → ORD Jul 22, 21:40 UTCJul 22, 23:00 UTC1h 20m
2026-07-22 AAL1877 CLT → PVD Jul 22, 18:10 UTCJul 22, 19:40 UTC1h 30m
2026-07-22 AAL1877 CLT → PVD Jul 22, 15:15 UTCJul 22, 16:45 UTC1h 30m
2026-07-22 AAL2011 - Jul 22, 11:20 UTCJul 22, 13:20 UTC2h 0m
2026-07-21 AAL1914 PHL → NAS Jul 21, 23:50 UTCJul 22, 00:30 UTC40m
2026-07-21 AAL1697 PHL → BDL Jul 21, 16:55 UTCJul 21, 18:15 UTC1h 20m
2026-07-21 AAL1697 PHL → BDL Jul 21, 14:10 UTCJul 21, 15:30 UTC1h 20m
2026-07-21 AAL2782 IND → DFW Jul 21, 10:10 UTCJul 21, 12:00 UTC1h 50m
2026-07-21 AAL766 PHL → BGR Jul 21, 02:30 UTCJul 21, 04:20 UTC1h 50m
2026-07-20 AAL476 LAS → ORD Jul 20, 21:00 UTCJul 21, 00:35 UTC3h 35m
2026-07-20 AAL597 - Jul 20, 17:10 UTCJul 20, 19:40 UTC2h 30m
2026-07-20 AAL243 - Jul 20, 14:50 UTCJul 20, 15:20 UTC30m
2026-07-20 AAL243 HAV → MIA Jul 20, 14:34 UTCJul 20, 15:18 UTC44m
2026-07-20 AAL242 - Jul 20, 12:20 UTCJul 20, 12:55 UTC35m
2026-07-20 AAL1452 - Jul 20, 02:20 UTCJul 20, 04:05 UTC1h 45m
2026-07-20 AAL1452 BNA → MIA Jul 20, 02:17 UTCJul 20, 04:02 UTC1h 45m
2026-07-19 AAL1490 DFW → BNA Jul 19, 22:45 UTCJul 20, 00:20 UTC1h 35m
2026-07-19 AAL1304 - Jul 19, 14:55 UTCJul 19, 21:15 UTC6h 20m
2026-07-19 AAL1108 DTW → DFW Jul 19, 09:55 UTCJul 19, 12:05 UTC2h 10m
2026-07-19 AAL690 - Jul 19, 01:15 UTCJul 19, 03:15 UTC2h 0m
2026-07-19 AAL690 DFW → DTW Jul 19, 01:15 UTCJul 19, 03:24 UTC2h 9m
2026-07-18 AAL355 DFW → DFW Jul 18, 16:10 UTCJul 18, 23:15 UTC7h 5m
2026-07-18 AAL533 AUS → LAX Jul 18, 11:25 UTCJul 18, 14:25 UTC3h 0m
2026-07-18 AAL421 - Jul 18, 04:10 UTCJul 18, 06:50 UTC2h 40m
2026-07-18 AAL421 DFW → SYR Jul 18, 04:09 UTCJul 18, 06:56 UTC2h 47m
2026-07-18 AAL2158 MSY → DFW Jul 18, 01:34 UTCJul 18, 02:50 UTC1h 16m
2026-07-17 AAL2158 DFW → MSY Jul 17, 23:14 UTCJul 18, 00:25 UTC1h 10m
2026-07-17 AAL2276 ORD → EWR Jul 17, 19:30 UTCJul 17, 21:55 UTC2h 25m
2026-07-17 AAL2276 ORD → EWR Jul 17, 15:25 UTCJul 17, 18:00 UTC2h 35m
2026-07-17 AAL2729 - Jul 17, 10:15 UTCJul 17, 13:25 UTC3h 10m
2026-07-17 AAL2729 BDL → DFW Jul 17, 10:11 UTCJul 17, 13:24 UTC3h 13m
2026-07-17 AAL1453 - Jul 17, 01:05 UTCJul 17, 02:39 UTC1h 35m
2026-07-17 AAL1453 ORD → BDL Jul 17, 01:04 UTCJul 17, 02:43 UTC1h 39m
2026-07-16 AAL3254 - Jul 16, 21:10 UTCJul 16, 22:59 UTC1h 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 N939AN page for operator, model, and routing details .

Mode-S AD0725 frequently asked

What is Mode-S code AD0725?
AD0725 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N939AN.
Where is Mode-S AD0725 registered?
Mode-S code AD0725 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 AD0725 broadcasting right now?
Yes. Mode-S AD0725 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD0725, octal 53203445, decimal 11,339,557.
What flights does AD0725 operate?
Mode-S AD0725 has broadcast 20 distinct callsigns, including AAL9, AAL1877, AAL1796, AAL1529, AAL392.