Apparatus

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sensors Mode-S transponder

A69424

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N523AS · BOEING 737-800 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A69424
Octal
51512044
Decimal
10,916,900
Country
US
Tail
N523AS
Type
B738
No current signal · last broadcast Jul 26, 23:00 UTC
Flights observed
486
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S A69424.

Country allocation

The ICAO 24-bit address A69424 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
ASA1618 Alaska Airlines 10 2026-07-17
ASA757 Alaska Airlines 9 2026-05-03
ASA1567 Alaska Airlines 6 2026-07-25
ASA1495 Alaska Airlines 6 2026-05-06
ASA750 Alaska Airlines 5 2026-05-14
ASA7 - 5 2026-06-27
ASA699 - 5 2026-07-21
ASA465 - 5 2026-07-14
ASA256 - 5 2026-07-17
ASA64 - 4 2026-07-06
ASA541 Alaska Airlines 4 2026-04-30
ASA471 - 4 2026-07-21
ASA461 Alaska Airlines 4 2026-06-14
ASA431 Alaska Airlines 4 2026-07-22
ASA241 Alaska Airlines 4 2026-05-29
ASA225 Alaska Airlines 4 2026-05-17
ASA224 Alaska Airlines 4 2026-07-22
ASA1466 - 4 2026-07-14
ASA9235 - 3 2026-07-19
ASA91 - 3 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASA1787 PHL → PDX Jul 26, 21:55 UTCJul 26, 23:00 UTC1h 5m
2026-07-26 ASA442 SEA → PHL Jul 26, 15:55 UTCJul 26, 20:20 UTC4h 25m
2026-07-26 ASA75 PDX → ANC Jul 26, 11:00 UTCJul 26, 14:05 UTC3h 5m
2026-07-26 ASA1560 LAX → SJO Jul 26, 06:20 UTCJul 26, 09:15 UTC2h 56m
2026-07-26 ASA1560 LAX → SJO Jul 26, 06:28 UTCJul 26, 09:15 UTC2h 47m
2026-07-26 ASA1431 BOS → SEA Jul 26, 01:50 UTCJul 26, 04:00 UTC2h 10m
2026-07-25 ASA1312 PDX → SAN Jul 25, 22:05 UTCJul 26, 00:15 UTC2h 10m
2026-07-25 ASA1567 ANC → PDX Jul 25, 17:20 UTCJul 25, 20:45 UTC3h 25m
2026-07-25 ASA1567 ANC → PDX Jul 25, 17:27 UTCJul 25, 20:35 UTC3h 8m
2026-07-25 ASA1339 CUN → LAX Jul 25, 15:17 UTCJul 25, 15:45 UTC28m
2026-07-25 ASA1339 CUN → LAX Jul 25, 15:00 UTCJul 25, 15:45 UTC45m
2026-07-25 ASA1512 BZN → SEA Jul 25, 06:55 UTCJul 25, 09:51 UTC2h 56m
2026-07-25 ASA1512 BZN → SEA Jul 25, 06:40 UTCJul 25, 09:50 UTC3h 10m
2026-07-24 ASA337 DAL → SFO Jul 24, 23:00 UTCJul 25, 03:05 UTC4h 5m
2026-07-24 ASA429 SEA → AUS Jul 24, 18:10 UTCJul 24, 21:45 UTC3h 35m
2026-07-24 ASA1325 SNA → SEA Jul 24, 14:15 UTCJul 24, 16:25 UTC2h 10m
2026-07-24 ASA518 SEA → SLC Jul 24, 03:05 UTCJul 24, 05:20 UTC2h 15m
2026-07-23 ASA1369 PVR → SFO Jul 23, 20:35 UTCJul 24, 01:45 UTC5h 10m
2026-07-23 ASA374 SJD → SJC Jul 23, 14:26 UTCJul 23, 18:44 UTC4h 18m
2026-07-23 ASA374 SJD → SJC Jul 23, 14:30 UTCJul 23, 18:50 UTC4h 20m
2026-07-23 ASA1519 ANC → FAI Jul 23, 02:05 UTCJul 23, 05:30 UTC3h 25m
2026-07-22 ASA1525 MCO → SEA Jul 22, 22:05 UTCJul 23, 01:00 UTC2h 55m
2026-07-22 ASA1567 ANC → PDX Jul 22, 17:30 UTCJul 22, 20:45 UTC3h 15m
2026-07-22 ASA224 ANC → PHX Jul 22, 14:50 UTCJul 22, 15:35 UTC45m
2026-07-22 ASA224 ANC → PHX Jul 22, 14:49 UTCJul 22, 15:31 UTC42m
2026-07-22 ASA431 LAX → SEA Jul 22, 02:45 UTCJul 22, 03:30 UTC45m
2026-07-21 ASA660 PAE → PHX Jul 21, 22:15 UTCJul 22, 01:25 UTC3h 10m
2026-07-21 ASA660 PAE → PHX Jul 21, 22:10 UTCJul 22, 01:16 UTC3h 6m
2026-07-21 ASA471 - Jul 21, 17:45 UTCJul 21, 19:00 UTC1h 15m
2026-07-21 ASA471 SNA → SEA Jul 21, 17:40 UTCJul 21, 19:41 UTC2h 1m
2026-07-21 ASA699 - Jul 21, 13:45 UTCJul 21, 16:10 UTC2h 25m
2026-07-21 ASA699 SEA → SNA Jul 21, 13:44 UTCJul 21, 16:03 UTC2h 19m
2026-07-21 ASA703 LAS → LAX Jul 21, 01:50 UTCJul 21, 04:00 UTC2h 10m
2026-07-20 ASA331 ORD → SFO Jul 20, 22:25 UTCJul 21, 00:35 UTC2h 10m
2026-07-20 ASA471 - Jul 20, 17:45 UTCJul 20, 19:55 UTC2h 10m
2026-07-20 ASA471 SNA → SEA Jul 20, 17:50 UTCJul 20, 19:55 UTC2h 5m
2026-07-20 ASA1404 SEA → BZE Jul 20, 14:25 UTCJul 20, 16:30 UTC2h 5m
2026-07-20 ASA1520 LAX → SFO Jul 20, 09:30 UTCJul 20, 13:05 UTC3h 35m
2026-07-20 ASA1520 LAX → SFO Jul 20, 09:30 UTCJul 20, 12:59 UTC3h 29m
2026-07-20 ASA1880 SFO → PHX Jul 20, 04:55 UTCJul 20, 08:05 UTC3h 10m
2026-07-19 ASA9235 - Jul 19, 21:25 UTCJul 20, 02:55 UTC5h 30m
2026-07-19 ASA9235 JFK → SEA Jul 19, 21:00 UTCJul 20, 02:44 UTC5h 44m
2026-07-19 ASA9235 - Jul 19, 21:00 UTCJul 19, 21:20 UTC20m
2026-07-17 ASA36 SAN → JFK Jul 17, 22:00 UTCJul 18, 03:20 UTC5h 21m
2026-07-17 ASA1618 SAN → DEN Jul 17, 18:44 UTCJul 17, 20:40 UTC1h 55m
2026-07-17 ASA1618 SAN → DEN Jul 17, 14:39 UTCJul 17, 16:40 UTC2h 0m
2026-07-17 ASA256 BOS → SAN Jul 17, 04:38 UTCJul 17, 09:54 UTC5h 16m
2026-07-17 ASA256 BOS → SAN Jul 17, 04:29 UTCJul 17, 09:55 UTC5h 25m
2026-07-16 ASA436 PDX → BOS Jul 16, 05:10 UTCJul 16, 10:00 UTC4h 50m
2026-07-15 ASA9 DCA → PDX Jul 15, 21:30 UTCJul 16, 02:20 UTC4h 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 N523AS page for operator, model, and routing details .

Mode-S A69424 frequently asked

What is Mode-S code A69424?
A69424 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N523AS.
Where is Mode-S A69424 registered?
Mode-S code A69424 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 A69424 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A69424, octal 51512044, decimal 10,916,900.
What flights does A69424 operate?
Mode-S A69424 has broadcast 20 distinct callsigns, including ASA1618, ASA757, ASA1567, ASA1495, ASA750.