Apparatus

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sensors Mode-S transponder

A9AEBC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N723AL · operated by ALASKA AIRLINES INC

Hex
A9AEBC
Octal
52327274
Decimal
11,120,316
Country
US
Tail
N723AL
Type
B39M
No current signal · last broadcast Jul 26, 21:25 UTC
Flights observed
387
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:25 UTC

Last known position

Most recent position reported by Mode-S A9AEBC.

Country allocation

The ICAO 24-bit address A9AEBC 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
ASA67 Alaska Airlines 8 2026-07-21
ASA379 - 5 2026-07-06
ASA365 Alaska Airlines 5 2026-04-29
ASA1345 - 5 2026-07-17
ASA508 Alaska Airlines 4 2026-05-20
ASA378 - 4 2026-07-06
ASA266 Alaska Airlines 4 2026-06-02
ASA227 Alaska Airlines 4 2026-04-16
ASA1526 - 4 2026-07-17
ASA1430 Alaska Airlines 4 2026-04-21
ASA1320 - 4 2026-07-05
ASA92 - 3 2026-07-16
ASA81 Alaska Airlines 3 2026-04-22
ASA727 - 3 2026-07-12
ASA626 Alaska Airlines 3 2026-05-14
ASA567 Alaska Airlines 3 2026-07-24
ASA562 Alaska Airlines 3 2026-07-26
ASA558 Alaska Airlines 3 2026-05-22
ASA479 Alaska Airlines 3 2026-05-20
ASA444 Alaska Airlines 3 2026-04-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASA392 PDX → DFW Jul 26, 18:05 UTCJul 26, 21:20 UTC3h 15m
2026-07-26 ASA562 SFO → LAS Jul 26, 14:30 UTCJul 26, 16:10 UTC1h 40m
2026-07-26 ASA562 SFO → LAS Jul 26, 14:34 UTCJul 26, 16:11 UTC1h 37m
2026-07-26 ASA1372 LAX → SEA Jul 26, 01:20 UTCJul 26, 03:30 UTC2h 10m
2026-07-25 ASA446 PHL → SEA Jul 25, 20:55 UTCJul 25, 22:50 UTC1h 55m
2026-07-25 ASA208 SEA → SFO Jul 25, 17:25 UTCJul 25, 19:15 UTC1h 50m
2026-07-25 ASA715 EWR → SEA Jul 25, 11:20 UTCJul 25, 15:20 UTC4h 0m
2026-07-25 ASA538 SFO → LAS Jul 25, 01:15 UTCJul 25, 04:30 UTC3h 15m
2026-07-24 ASA567 PDX → SJD Jul 24, 21:30 UTCJul 24, 23:35 UTC2h 5m
2026-07-24 ASA567 PDX → SJD Jul 24, 21:26 UTCJul 24, 23:17 UTC1h 51m
2026-07-24 ASA565 LAX → PDX Jul 24, 17:50 UTCJul 24, 20:05 UTC2h 15m
2026-07-24 ASA1473 KOA → SEA Jul 24, 13:50 UTCJul 24, 15:55 UTC2h 5m
2026-07-24 ASA1398 LAX → MZT Jul 24, 04:20 UTCJul 24, 06:40 UTC2h 20m
2026-07-24 ASA430 DEN → PDX Jul 24, 00:55 UTCJul 24, 01:25 UTC30m
2026-07-23 ASA1383 PVR → SEA Jul 23, 21:55 UTCJul 23, 23:35 UTC1h 40m
2026-07-23 ASA1383 PVR → SEA Jul 23, 21:50 UTCJul 23, 23:34 UTC1h 44m
2026-07-23 ASA1384 SEA → PVR Jul 23, 18:11 UTCJul 23, 20:06 UTC1h 55m
2026-07-23 ASA1384 SEA → PVR Jul 23, 18:15 UTCJul 23, 20:15 UTC2h 0m
2026-07-23 ASA413 ORD → PDX Jul 23, 12:55 UTCJul 23, 16:45 UTC3h 50m
2026-07-23 ASA328 SEA → ORD Jul 23, 07:35 UTCJul 23, 10:40 UTC3h 5m
2026-07-23 ASA328 SEA → ORD Jul 23, 07:26 UTCJul 23, 10:24 UTC2h 58m
2026-07-23 ASA1518 SAN → ORD Jul 23, 02:48 UTCJul 23, 05:35 UTC2h 47m
2026-07-23 ASA1518 SAN → ORD Jul 23, 02:45 UTCJul 23, 05:00 UTC2h 15m
2026-07-22 ASA660 PAE → PHX Jul 22, 22:05 UTCJul 23, 01:20 UTC3h 15m
2026-07-22 ASA361 OMA → SEA Jul 22, 15:04 UTCJul 22, 20:14 UTC5h 10m
2026-07-22 ASA361 OMA → SEA Jul 22, 15:05 UTCJul 22, 20:30 UTC5h 25m
2026-07-22 ASA1431 BOS → SEA Jul 22, 02:05 UTCJul 22, 04:20 UTC2h 15m
2026-07-21 ASA1312 PDX → SAN Jul 21, 22:10 UTCJul 22, 00:30 UTC2h 20m
2026-07-21 ASA1467 LAS → PDX Jul 21, 18:15 UTCJul 21, 20:00 UTC1h 45m
2026-07-21 ASA1636 ANC → LAS Jul 21, 08:20 UTCJul 21, 13:20 UTC5h 0m
2026-07-21 ASA67 SEA → KTN Jul 21, 05:15 UTCJul 21, 06:35 UTC1h 20m
2026-07-21 ASA67 SEA → KTN Jul 21, 03:35 UTCJul 21, 03:50 UTC15m
2026-07-21 ASA67 SEA → KTN Jul 21, 01:50 UTCJul 21, 02:15 UTC25m
2026-07-20 ASA67 SEA → KTN Jul 20, 23:00 UTCJul 21, 00:25 UTC1h 25m
2026-07-20 ASA48 ANC → SEA Jul 20, 18:05 UTCJul 20, 21:30 UTC3h 25m
2026-07-20 ASA85 SEA → ANC Jul 20, 13:20 UTCJul 20, 16:25 UTC3h 5m
2026-07-20 ASA1436 SJC → SEA Jul 20, 06:00 UTCJul 20, 07:30 UTC1h 30m
2026-07-20 ASA1411 PVR → SEA Jul 20, 03:50 UTCJul 20, 04:45 UTC55m
2026-07-20 ASA1411 PVR → SEA Jul 20, 00:15 UTCJul 20, 00:30 UTC15m
2026-07-19 ASA768 SEA → LAS Jul 19, 15:55 UTCJul 19, 21:15 UTC5h 20m
2026-07-19 ASA768 SEA → LAS Jul 19, 15:56 UTCJul 19, 21:11 UTC5h 15m
2026-07-19 ASA1351 SJC → SEA Jul 19, 07:10 UTCJul 19, 12:50 UTC5h 40m
2026-07-19 ASA1352 SFO → BOS Jul 19, 00:20 UTCJul 19, 05:50 UTC5h 30m
2026-07-18 ASA502 SEA → LAX Jul 18, 20:06 UTCJul 18, 22:12 UTC2h 6m
2026-07-18 ASA502 SEA → LAX Jul 18, 20:05 UTCJul 18, 22:25 UTC2h 20m
2026-07-18 ASA317 DEN → SEA Jul 18, 15:15 UTCJul 18, 17:45 UTC2h 30m
2026-07-18 ASA1627 PDX → DEN Jul 18, 03:20 UTCJul 18, 05:25 UTC2h 5m
2026-07-17 ASA1350 BNA → PDX Jul 17, 22:10 UTCJul 18, 02:09 UTC4h 0m
2026-07-17 ASA1345 SEA → BNA Jul 17, 16:29 UTCJul 17, 20:25 UTC3h 55m
2026-07-17 ASA1529 ABQ → SEA Jul 17, 12:10 UTCJul 17, 14:44 UTC2h 35m

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 N723AL page for operator, model, and routing details .

Mode-S A9AEBC frequently asked

What is Mode-S code A9AEBC?
A9AEBC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N723AL.
Where is Mode-S A9AEBC registered?
Mode-S code A9AEBC 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 A9AEBC broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9AEBC, octal 52327274, decimal 11,120,316.
What flights does A9AEBC operate?
Mode-S A9AEBC has broadcast 20 distinct callsigns, including ASA67, ASA379, ASA365, ASA1345, ASA508.