Apparatus

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sensors Mode-S transponder

AD5398

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N958NN · BOEING 737-800 · operated by UMB BANK NA TRUSTEE

Hex
AD5398
Octal
53251630
Decimal
11,359,128
Country
US
Tail
N958NN
Type
B738
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
596
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S AD5398.

Country allocation

The ICAO 24-bit address AD5398 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
AAL1521 - 6 2026-06-22
AAL1400 - 6 2026-06-22
AAL1089 American Airlines 6 2026-07-22
AAL3300 - 5 2026-07-17
AAL2569 - 5 2026-07-14
AAL2412 - 5 2026-07-08
AAL2320 - 5 2026-07-19
AAL1819 - 5 2026-04-13
AAL1705 - 5 2026-07-01
AAL1626 - 5 2026-07-19
AAL1376 - 5 2026-07-08
AAL775 - 4 2026-07-12
AAL491 - 4 2026-07-17
AAL383 - 4 2026-06-26
AAL2851 American Airlines 4 2026-05-01
AAL2703 American Airlines 4 2026-05-05
AAL2318 - 4 2026-07-16
AAL2135 American Airlines 4 2026-05-31
AAL1998 American Airlines 4 2026-05-10
AAL1944 - 4 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL1028 AUA → MIA Jul 26, 18:45 UTCJul 26, 21:15 UTC2h 30m
2026-07-26 AAL1028 AUA → MIA Jul 26, 14:50 UTCJul 26, 17:15 UTC2h 25m
2026-07-26 AAL3190 ATL → MIA Jul 26, 11:16 UTCJul 26, 13:05 UTC1h 49m
2026-07-26 AAL3190 ATL → MIA Jul 26, 11:20 UTCJul 26, 13:05 UTC1h 45m
2026-07-26 AAL1045 DFW → DSM Jul 26, 00:40 UTCJul 26, 02:30 UTC1h 50m
2026-07-25 AAL1128 MDE → MIA Jul 25, 19:15 UTCJul 25, 22:10 UTC2h 55m
2026-07-25 AAL1127 MIA → MDE Jul 25, 14:40 UTCJul 25, 17:20 UTC2h 40m
2026-07-25 AAL2436 EWR → DFW Jul 25, 12:00 UTCJul 25, 12:20 UTC20m
2026-07-24 AAL2245 DFW → BDL Jul 24, 23:05 UTCJul 24, 23:25 UTC20m
2026-07-24 AAL1175 DFW → SFO Jul 24, 19:52 UTCJul 24, 21:42 UTC1h 50m
2026-07-24 AAL1175 DFW → SFO Jul 24, 16:55 UTCJul 24, 21:45 UTC4h 50m
2026-07-24 AAL1088 DFW → LGA Jul 24, 09:10 UTCJul 24, 10:45 UTC1h 35m
2026-07-23 AAL1566 MIA → RDU Jul 23, 23:45 UTCJul 24, 01:20 UTC1h 35m
2026-07-23 AAL1566 MIA → RDU Jul 23, 23:40 UTCJul 24, 01:23 UTC1h 43m
2026-07-23 AAL1128 MDE → MIA Jul 23, 19:15 UTCJul 23, 22:10 UTC2h 55m
2026-07-23 AAL1127 MIA → MDE Jul 23, 14:45 UTCJul 23, 17:20 UTC2h 35m
2026-07-23 AAL1340 FLL → DFW Jul 23, 10:45 UTCJul 23, 12:40 UTC1h 55m
2026-07-23 AAL1340 FLL → DFW Jul 23, 10:40 UTCJul 23, 12:38 UTC1h 58m
2026-07-23 AAL1551 DFW → ORD Jul 23, 02:50 UTCJul 23, 04:40 UTC1h 50m
2026-07-23 AAL1551 DFW → ORD Jul 23, 02:46 UTCJul 23, 04:40 UTC1h 54m
2026-07-22 AAL1089 OMA → CLT Jul 22, 20:00 UTCJul 22, 23:20 UTC3h 20m
2026-07-22 AAL1089 OMA → CLT Jul 22, 19:54 UTCJul 22, 23:19 UTC3h 25m
2026-07-22 AAL1089 OMA → CLT Jul 22, 15:25 UTCJul 22, 18:35 UTC3h 10m
2026-07-22 AAL2678 HAV → MIA Jul 22, 13:35 UTCJul 22, 14:00 UTC25m
2026-07-22 AAL2678 HAV → MIA Jul 22, 13:20 UTCJul 22, 14:05 UTC45m
2026-07-22 AAL17 MIA → HAV Jul 22, 11:15 UTCJul 22, 11:45 UTC30m
2026-07-22 AAL17 MIA → HAV Jul 22, 11:08 UTCJul 22, 11:59 UTC51m
2026-07-22 AAL1105 DFW → LGA Jul 22, 00:40 UTCJul 22, 03:10 UTC2h 30m
2026-07-21 AAL1105 DFW → LGA Jul 21, 20:15 UTCJul 21, 23:00 UTC2h 45m
2026-07-21 AAL2010 DCA → LGA Jul 21, 13:30 UTCJul 21, 17:45 UTC4h 15m
2026-07-21 AAL756 PHL → SFO Jul 21, 10:15 UTCJul 21, 12:00 UTC1h 45m
2026-07-21 AAL756 PHL → SFO Jul 21, 10:10 UTCJul 21, 11:55 UTC1h 45m
2026-07-21 AAL2674 CLT → ORF Jul 21, 03:05 UTCJul 21, 04:15 UTC1h 10m
2026-07-21 AAL2674 CLT → ORF Jul 21, 03:02 UTCJul 21, 04:08 UTC1h 6m
2026-07-20 AAL3131 DFW → DTW Jul 20, 23:35 UTCJul 21, 01:10 UTC1h 35m
2026-07-20 AAL1338 LIR → MIA Jul 20, 19:30 UTCJul 20, 21:10 UTC1h 40m
2026-07-20 AAL1338 LIR → MIA Jul 20, 18:54 UTCJul 20, 21:11 UTC2h 17m
2026-07-20 AAL887 - Jul 20, 13:45 UTCJul 20, 15:30 UTC1h 45m
2026-07-20 AAL887 CLT → LIR Jul 20, 13:44 UTCJul 20, 17:25 UTC3h 41m
2026-07-20 AAL2505 EWR → CLT Jul 20, 10:15 UTCJul 20, 11:30 UTC1h 15m
2026-07-20 AAL2999 DFW → EWR Jul 20, 00:10 UTCJul 20, 03:15 UTC3h 5m
2026-07-19 AAL2320 - Jul 19, 21:10 UTCJul 19, 22:40 UTC1h 30m
2026-07-19 AAL2320 - Jul 19, 18:25 UTCJul 19, 19:55 UTC1h 30m
2026-07-19 AAL1948 DFW → SAN Jul 19, 15:15 UTCJul 19, 17:00 UTC1h 45m
2026-07-19 AAL1948 DFW → SAN Jul 19, 12:10 UTCJul 19, 13:50 UTC1h 40m
2026-07-19 AAL1626 - Jul 19, 04:10 UTCJul 19, 06:40 UTC2h 30m
2026-07-19 AAL1634 - Jul 19, 01:00 UTCJul 19, 03:00 UTC2h 0m
2026-07-18 AAL2582 - Jul 18, 16:05 UTCJul 18, 18:25 UTC2h 20m
2026-07-18 AAL2582 - Jul 18, 14:35 UTCJul 18, 14:50 UTC15m
2026-07-18 AAL2582 - Jul 18, 12:40 UTCJul 18, 13:00 UTC20m

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 N958NN page for operator, model, and routing details .

Mode-S AD5398 frequently asked

What is Mode-S code AD5398?
AD5398 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N958NN.
Where is Mode-S AD5398 registered?
Mode-S code AD5398 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 AD5398 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD5398, octal 53251630, decimal 11,359,128.
What flights does AD5398 operate?
Mode-S AD5398 has broadcast 20 distinct callsigns, including AAL1521, AAL1400, AAL1089, AAL3300, AAL2569.