Apparatus

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sensors Mode-S transponder

A9AB05

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N722AL · operated by ALASKA AIRLINES INC

Hex
A9AB05
Octal
52325405
Decimal
11,119,365
Country
US
Tail
N722AL
Type
B39M
No current signal · last broadcast Jul 26, 21:00 UTC
Flights observed
436
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:00 UTC

Last known position

Most recent position reported by Mode-S A9AB05.

Country allocation

The ICAO 24-bit address A9AB05 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
ASA1327 - 6 2026-07-16
ASA67 - 5 2026-07-15
ASA404 - 5 2026-07-10
ASA204 - 5 2026-07-10
ASA1470 Alaska Airlines 5 2026-07-01
ASA676 Alaska Airlines 4 2026-05-27
ASA624 Alaska Airlines 4 2026-06-01
ASA502 - 4 2026-07-10
ASA450 - 4 2026-06-29
ASA418 - 4 2026-07-15
ASA375 Alaska Airlines 4 2026-07-22
ASA369 Alaska Airlines 4 2026-04-15
ASA348 - 4 2026-07-17
ASA306 Alaska Airlines 4 2026-04-24
ASA1416 - 4 2026-07-12
ASA1411 - 4 2026-07-12
ASA1352 - 4 2026-07-11
ASA776 Alaska Airlines 3 2026-06-07
ASA768 - 3 2026-07-11
ASA763 - 3 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASA56 LAX → PDX Jul 26, 19:25 UTCJul 26, 21:00 UTC1h 35m
2026-07-26 ASA1615 PDX → ANC Jul 26, 14:25 UTCJul 26, 17:30 UTC3h 5m
2026-07-26 ASA649 LAS → PDX Jul 26, 01:10 UTCJul 26, 02:50 UTC1h 40m
2026-07-25 ASA1386 PVR → SFO Jul 25, 22:00 UTCJul 26, 00:00 UTC2h 0m
2026-07-25 ASA251 GEG → PDX Jul 25, 20:00 UTCJul 25, 20:50 UTC50m
2026-07-25 ASA250 PDX → GEG Jul 25, 18:05 UTCJul 25, 18:50 UTC45m
2026-07-25 ASA311 SEA → SFO Jul 25, 10:25 UTCJul 25, 16:10 UTC5h 45m
2026-07-24 ASA460 SEA → BOS Jul 24, 22:50 UTCJul 25, 03:25 UTC4h 35m
2026-07-24 ASA603 SAN → PDX Jul 24, 18:35 UTCJul 24, 21:00 UTC2h 25m
2026-07-24 ASA606 SEA → PHX Jul 24, 14:30 UTCJul 24, 16:55 UTC2h 25m
2026-07-24 ASA329 ORD → SEA Jul 24, 02:35 UTCJul 24, 06:35 UTC4h 0m
2026-07-23 ASA410 SEA → ORD Jul 23, 21:45 UTCJul 24, 01:05 UTC3h 20m
2026-07-23 ASA637 - Jul 23, 17:25 UTCJul 23, 19:55 UTC2h 30m
2026-07-23 ASA746 PVR → LAX Jul 23, 01:15 UTCJul 23, 03:35 UTC2h 20m
2026-07-22 ASA686 SFO → LAS Jul 22, 23:20 UTCJul 22, 23:55 UTC35m
2026-07-22 ASA381 DTW → SEA Jul 22, 19:15 UTCJul 22, 21:35 UTC2h 20m
2026-07-22 ASA375 EWR → SFO Jul 22, 15:32 UTCJul 22, 17:25 UTC1h 53m
2026-07-22 ASA375 EWR → SFO Jul 22, 15:25 UTCJul 22, 17:15 UTC1h 50m
2026-07-22 ASA683 LAS → PDX Jul 22, 00:30 UTCJul 22, 01:55 UTC1h 25m
2026-07-21 ASA681 DEN → SEA Jul 21, 21:50 UTCJul 21, 23:20 UTC1h 30m
2026-07-21 ASA629 LAS → SEA Jul 21, 17:58 UTCJul 21, 19:34 UTC1h 36m
2026-07-21 ASA629 LAS → SEA Jul 21, 17:40 UTCJul 21, 19:35 UTC1h 55m
2026-07-21 ASA777 SEA → OAK Jul 21, 14:05 UTCJul 21, 16:20 UTC2h 15m
2026-07-21 ASA366 MKE → SEA Jul 21, 03:00 UTCJul 21, 05:05 UTC2h 5m
2026-07-20 ASA1456 SJC → PDX Jul 20, 23:35 UTCJul 21, 01:45 UTC2h 10m
2026-07-20 ASA415 LAX → SEA Jul 20, 18:25 UTCJul 20, 21:50 UTC3h 25m
2026-07-20 ASA414 SFO → LAS Jul 20, 13:10 UTCJul 20, 16:30 UTC3h 20m
2026-07-20 ASA532 MSP → SEA Jul 20, 01:10 UTCJul 20, 04:55 UTC3h 45m
2026-07-20 ASA532 MSP → SEA Jul 20, 01:10 UTCJul 20, 04:37 UTC3h 27m
2026-07-19 ASA527 SNA → SEA Jul 19, 20:55 UTCJul 19, 23:30 UTC2h 35m
2026-07-19 ASA753 - Jul 19, 16:00 UTCJul 19, 18:10 UTC2h 10m
2026-07-19 ASA1412 - Jul 19, 08:05 UTCJul 19, 08:25 UTC20m
2026-07-19 ASA1412 HNL → SAN Jul 19, 08:05 UTCJul 19, 13:03 UTC4h 58m
2026-07-19 ASA94 ANC → SEA Jul 19, 01:00 UTCJul 19, 06:25 UTC5h 25m
2026-07-18 ASA551 DFW → SAN Jul 18, 20:25 UTCJul 18, 22:55 UTC2h 30m
2026-07-18 ASA551 DFW → SAN Jul 18, 20:25 UTCJul 18, 22:49 UTC2h 24m
2026-07-18 ASA340 SEA → DFW Jul 18, 15:15 UTCJul 18, 18:40 UTC3h 25m
2026-07-18 ASA54 ANC → SEA Jul 18, 09:50 UTCJul 18, 12:40 UTC2h 50m
2026-07-18 ASA771 ORD → SFO Jul 18, 05:15 UTCJul 18, 08:30 UTC3h 15m
2026-07-18 ASA575 - Jul 18, 00:45 UTCJul 18, 02:45 UTC2h 0m
2026-07-17 ASA571 SEA → ONT Jul 17, 21:10 UTCJul 17, 23:30 UTC2h 20m
2026-07-17 ASA348 ATL → SEA Jul 17, 14:00 UTCJul 17, 18:25 UTC4h 25m
2026-07-17 ASA464 SEA → ATL Jul 17, 07:44 UTCJul 17, 12:10 UTC4h 25m
2026-07-17 ASA249 DEN → SEA Jul 17, 03:55 UTCJul 17, 06:15 UTC2h 20m
2026-07-17 ASA242 SEA → DEN Jul 17, 00:20 UTCJul 17, 02:34 UTC2h 15m
2026-07-16 ASA1327 PDX → SEA Jul 16, 21:50 UTCJul 16, 22:19 UTC30m
2026-07-16 ASA1327 - Jul 16, 16:49 UTCJul 16, 18:40 UTC1h 50m
2026-07-16 ASA791 SEA → SFO Jul 16, 01:00 UTCJul 16, 03:00 UTC2h 0m
2026-07-15 ASA418 - Jul 15, 19:40 UTCJul 15, 22:50 UTC3h 10m
2026-07-15 ASA418 - Jul 15, 15:15 UTCJul 15, 18:30 UTC3h 15m

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 N722AL page for operator, model, and routing details .

Mode-S A9AB05 frequently asked

What is Mode-S code A9AB05?
A9AB05 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N722AL.
Where is Mode-S A9AB05 registered?
Mode-S code A9AB05 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 A9AB05 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9AB05, octal 52325405, decimal 11,119,365.
What flights does A9AB05 operate?
Mode-S A9AB05 has broadcast 20 distinct callsigns, including ASA1327, ASA67, ASA404, ASA204, ASA1470.