Apparatus

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sensors Mode-S transponder

A9B62A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N725AL · BOEING 737 MAX 9 · operated by ALASKA AIRLINES INC

Hex
A9B62A
Octal
52333052
Decimal
11,122,218
Country
US
Tail
N725AL
Type
B39M
No current signal · last broadcast 3h ago
Flights observed
390
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A9B62A.

Country allocation

The ICAO 24-bit address A9B62A 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
ASA35 Alaska Airlines 7 2026-05-01
ASA42 Alaska Airlines 6 2026-04-28
ASA62 Alaska Airlines 5 2026-06-14
ASA355 Alaska Airlines 5 2026-04-13
ASA626 - 4 2026-07-08
ASA595 Alaska Airlines 4 2026-04-15
ASA560 Alaska Airlines 4 2026-05-15
ASA494 - 4 2026-07-12
ASA412 - 4 2026-06-15
ASA313 Alaska Airlines 4 2026-05-26
ASA775 Alaska Airlines 3 2026-06-13
ASA729 Alaska Airlines 3 2026-05-08
ASA597 Alaska Airlines 3 2026-04-17
ASA572 - 3 2026-06-25
ASA549 Alaska Airlines 3 2026-05-13
ASA50 - 3 2026-06-14
ASA477 Alaska Airlines 3 2026-04-15
ASA47 Alaska Airlines 3 2026-06-20
ASA440 - 3 2026-06-19
ASA354 Alaska Airlines 3 2026-05-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ASA1616 - Jul 14, 01:10 UTCJul 14, 02:20 UTC1h 10m
2026-07-14 ASA1616 PDX → RNO Jul 14, 01:08 UTCJul 14, 02:15 UTC1h 7m
2026-07-13 ASA1315 LAX → PDX Jul 13, 22:07 UTCJul 13, 23:36 UTC1h 29m
2026-07-13 ASA1315 LAX → PDX Jul 13, 21:50 UTCJul 13, 23:35 UTC1h 45m
2026-07-13 ASA695 - Jul 13, 18:10 UTCJul 13, 20:15 UTC2h 5m
2026-07-13 ASA399 - Jul 13, 14:10 UTCJul 13, 16:05 UTC1h 55m
2026-07-13 ASA1472 SEA → SAN Jul 13, 05:10 UTCJul 13, 07:50 UTC2h 40m
2026-07-13 ASA1472 SEA → SAN Jul 13, 04:40 UTCJul 13, 07:39 UTC2h 59m
2026-07-12 ASA494 - Jul 12, 22:00 UTCJul 13, 01:45 UTC3h 45m
2026-07-12 ASA494 - Jul 12, 17:01 UTCJul 12, 20:35 UTC3h 35m
2026-07-12 ASA473 STL → SEA Jul 12, 11:15 UTCJul 12, 15:01 UTC3h 45m
2026-07-12 ASA615 SEA → STL Jul 12, 01:55 UTCJul 12, 05:10 UTC3h 15m
2026-07-11 ASA652 - Jul 11, 22:25 UTCJul 12, 00:25 UTC2h 0m
2026-07-11 ASA652 SIT → SEA Jul 11, 22:21 UTCJul 12, 00:11 UTC1h 50m
2026-07-11 ASA633 - Jul 11, 19:20 UTCJul 11, 21:00 UTC1h 40m
2026-07-11 ASA215 AUS → SEA Jul 11, 14:10 UTCJul 11, 17:55 UTC3h 45m
2026-07-11 ASA215 AUS → SEA Jul 11, 13:56 UTCJul 11, 17:37 UTC3h 41m
2026-07-11 ASA1370 PDX → AUS Jul 11, 00:50 UTCJul 11, 04:15 UTC3h 25m
2026-07-10 ASA1600 SMF → PDX Jul 10, 22:10 UTCJul 10, 23:20 UTC1h 10m
2026-07-10 ASA1428 SEA → SMF Jul 10, 19:30 UTCJul 10, 20:50 UTC1h 20m
2026-07-10 ASA409 IAD → SEA Jul 10, 11:45 UTCJul 10, 16:45 UTC5h 0m
2026-07-09 ASA406 SEA → IAD Jul 9, 23:30 UTCJul 10, 03:55 UTC4h 25m
2026-07-09 ASA90 FAI → ANC Jul 9, 06:40 UTCJul 9, 07:35 UTC55m
2026-07-09 ASA90 FAI → ANC Jul 9, 02:05 UTCJul 9, 02:20 UTC15m
2026-07-08 ASA626 - Jul 8, 23:55 UTCJul 9, 00:15 UTC20m
2026-07-08 ASA626 SEA → HNL Jul 8, 19:17 UTCJul 9, 00:08 UTC4h 51m
2026-07-08 ASA626 - Jul 8, 19:05 UTCJul 8, 19:55 UTC50m
2026-07-08 ASA715 ORD → SEA Jul 8, 12:50 UTCJul 8, 16:35 UTC3h 45m
2026-07-08 ASA328 SEA → ORD Jul 8, 07:25 UTCJul 8, 11:05 UTC3h 40m
2026-07-07 ASA379 - Jul 7, 23:00 UTCJul 8, 04:15 UTC5h 15m
2026-07-07 ASA378 SEA → BWI Jul 7, 16:40 UTCJul 7, 21:30 UTC4h 50m
2026-07-07 ASA1444 SLC → SEA Jul 7, 12:35 UTCJul 7, 14:15 UTC1h 40m
2026-07-07 ASA1459 SEA → SLC Jul 7, 04:15 UTCJul 7, 05:55 UTC1h 40m
2026-07-07 ASA1413 SJC → SEA Jul 7, 01:05 UTCJul 7, 02:40 UTC1h 35m
2026-07-06 ASA1366 SEA → SJC Jul 6, 21:45 UTCJul 6, 23:40 UTC1h 55m
2026-07-06 ASA629 LAS → SEA Jul 6, 17:50 UTCJul 6, 19:45 UTC1h 55m
2026-07-06 ASA777 - Jul 6, 14:15 UTCJul 6, 16:20 UTC2h 5m
2026-07-06 ASA366 LAS → PAE Jul 6, 03:10 UTCJul 6, 05:15 UTC2h 5m
2026-07-05 ASA1456 SJC → PDX Jul 5, 23:47 UTCJul 6, 01:45 UTC1h 58m
2026-07-05 ASA1456 SJC → PDX Jul 5, 23:40 UTCJul 6, 00:30 UTC50m
2026-07-05 ASA415 DFW → SEA Jul 5, 18:20 UTCJul 5, 22:00 UTC3h 40m
2026-07-05 ASA414 SFO → LAS Jul 5, 13:10 UTCJul 5, 16:45 UTC3h 35m
2026-07-04 ASA596 - Jul 4, 20:10 UTCJul 4, 21:45 UTC1h 35m
2026-07-04 ASA653 SFO → ZIH Jul 4, 17:25 UTCJul 4, 18:55 UTC1h 30m
2026-07-04 ASA344 - Jul 4, 11:15 UTCJul 4, 15:40 UTC4h 25m
2026-07-04 ASA343 SEA → DTW Jul 4, 05:35 UTCJul 4, 09:25 UTC3h 50m
2026-07-03 ASA218 SFO → PDX Jul 3, 22:05 UTCJul 4, 03:00 UTC4h 55m
2026-07-03 ASA784 PDX → ATL Jul 3, 14:40 UTCJul 3, 19:40 UTC5h 0m
2026-07-03 ASA784 PDX → ATL Jul 3, 14:39 UTCJul 3, 19:30 UTC4h 51m
2026-07-02 ASA1421 - Jul 2, 23:30 UTCJul 3, 03:25 UTC3h 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 N725AL page for operator, model, and routing details .

Mode-S A9B62A frequently asked

What is Mode-S code A9B62A?
A9B62A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N725AL.
Where is Mode-S A9B62A registered?
Mode-S code A9B62A 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 A9B62A broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9B62A, octal 52333052, decimal 11,122,218.
What flights does A9B62A operate?
Mode-S A9B62A has broadcast 20 distinct callsigns, including ASA35, ASA42, ASA62, ASA355, ASA626.