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sensors Mode-S transponder

A6AA6E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N529AS · BOEING 737-800 · operated by ALASKA AIRLINES INC

Hex
A6AA6E
Octal
51525156
Decimal
10,922,606
Country
US
Tail
N529AS
Type
B738
No current signal · last broadcast 2h ago
Flights observed
377
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A6AA6E.

Country allocation

The ICAO 24-bit address A6AA6E 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
ASA799 Alaska Airlines 4 2026-04-30
ASA429 Alaska Airlines 4 2026-06-06
ASA368 Alaska Airlines 4 2026-05-17
ASA301 Alaska Airlines 4 2026-04-15
ASA264 Alaska Airlines 4 2026-04-20
ASA233 - 4 2026-06-28
ASA232 - 4 2026-07-06
ASA210 - 4 2026-07-08
ASA1405 Alaska Airlines 4 2026-05-31
ASA92 - 3 2026-07-01
ASA9 Alaska Airlines 3 2026-04-18
ASA60 Alaska Airlines 3 2026-05-18
ASA589 Alaska Airlines 3 2026-04-21
ASA580 Alaska Airlines 3 2026-04-24
ASA548 - 3 2026-07-09
ASA511 Alaska Airlines 3 2026-04-16
ASA481 Alaska Airlines 3 2026-07-10
ASA412 Alaska Airlines 3 2026-05-23
ASA4 Alaska Airlines 3 2026-04-17
ASA3 - 3 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ASA323 - Jul 14, 16:10 UTCJul 14, 17:30 UTC1h 20m
2026-07-14 ASA736 - Jul 14, 04:10 UTCJul 14, 05:35 UTC1h 25m
2026-07-14 ASA736 SEA → RNO Jul 14, 04:06 UTCJul 14, 05:32 UTC1h 26m
2026-07-13 ASA3 DCA → SEA Jul 13, 21:05 UTCJul 14, 02:10 UTC5h 5m
2026-07-13 ASA10 PDX → DCA Jul 13, 15:20 UTCJul 13, 19:55 UTC4h 35m
2026-07-13 ASA710 GEG → PDX Jul 13, 12:10 UTCJul 13, 13:00 UTC50m
2026-07-13 ASA566 - Jul 13, 03:50 UTCJul 13, 05:55 UTC2h 5m
2026-07-12 ASA1638 TPA → SAN Jul 12, 21:55 UTCJul 13, 02:25 UTC4h 30m
2026-07-12 ASA1639 - Jul 12, 16:01 UTCJul 12, 20:20 UTC4h 20m
2026-07-11 ASA228 - Jul 11, 21:10 UTCJul 12, 02:30 UTC5h 20m
2026-07-11 ASA789 - Jul 11, 14:10 UTCJul 11, 19:00 UTC4h 50m
2026-07-11 ASA788 - Jul 11, 02:00 UTCJul 11, 06:35 UTC4h 35m
2026-07-10 ASA258 - Jul 10, 18:45 UTCJul 11, 00:05 UTC5h 20m
2026-07-10 ASA651 PHX → SEA Jul 10, 15:10 UTCJul 10, 17:05 UTC1h 55m
2026-07-10 ASA91 - Jul 10, 05:25 UTCJul 10, 07:20 UTC1h 55m
2026-07-10 ASA481 SEA → BZE Jul 10, 02:15 UTCJul 10, 03:30 UTC1h 15m
2026-07-10 ASA481 SEA → BZE Jul 10, 02:05 UTCJul 10, 03:41 UTC1h 36m
2026-07-09 ASA319 SEA → SJC Jul 9, 23:15 UTCJul 10, 00:55 UTC1h 40m
2026-07-09 ASA548 - Jul 9, 19:25 UTCJul 9, 21:50 UTC2h 25m
2026-07-09 ASA548 SNA → SEA Jul 9, 19:27 UTCJul 9, 21:33 UTC2h 6m
2026-07-09 ASA759 - Jul 9, 15:40 UTCJul 9, 17:50 UTC2h 10m
2026-07-09 ASA75 ANC → SEA Jul 9, 10:44 UTCJul 9, 13:23 UTC2h 39m
2026-07-09 ASA75 - Jul 9, 10:40 UTCJul 9, 11:05 UTC25m
2026-07-09 ASA771 SEA → ANC Jul 9, 05:35 UTCJul 9, 08:50 UTC3h 15m
2026-07-09 ASA481 SEA → BZE Jul 9, 02:15 UTCJul 9, 04:00 UTC1h 45m
2026-07-08 ASA319 SEA → SJC Jul 8, 23:30 UTCJul 9, 01:10 UTC1h 40m
2026-07-08 ASA293 GEG → SEA Jul 8, 20:45 UTCJul 8, 21:06 UTC21m
2026-07-08 ASA293 GEG → SEA Jul 8, 20:35 UTCJul 8, 21:15 UTC40m
2026-07-08 ASA449 SEA → GEG Jul 8, 18:30 UTCJul 8, 19:10 UTC40m
2026-07-08 ASA210 - Jul 8, 13:40 UTCJul 8, 16:50 UTC3h 10m
2026-07-08 ASA210 FAI → SEA Jul 8, 13:35 UTCJul 8, 16:34 UTC2h 59m
2026-07-08 ASA1512 SEA → FAI Jul 8, 06:45 UTCJul 8, 09:55 UTC3h 10m
2026-07-07 ASA469 - Jul 7, 23:55 UTCJul 8, 04:30 UTC4h 35m
2026-07-07 ASA469 BNA → SEA Jul 7, 23:55 UTCJul 8, 04:35 UTC4h 40m
2026-07-07 ASA1376 - Jul 7, 17:45 UTCJul 7, 21:50 UTC4h 5m
2026-07-07 ASA750 SNA → PDX Jul 7, 14:15 UTCJul 7, 16:10 UTC1h 55m
2026-07-07 ASA472 - Jul 7, 00:50 UTCJul 7, 03:10 UTC2h 20m
2026-07-06 ASA332 ANC → SEA Jul 6, 19:40 UTCJul 6, 22:55 UTC3h 15m
2026-07-06 ASA232 ADQ → ANC Jul 6, 17:20 UTCJul 6, 18:00 UTC40m
2026-07-06 ASA231 LAS → SFO Jul 6, 15:30 UTCJul 6, 16:05 UTC35m
2026-07-06 ASA667 SEA → ANC Jul 6, 04:05 UTCJul 6, 07:15 UTC3h 10m
2026-07-05 ASA510 MSP → SEA Jul 5, 22:15 UTCJul 6, 01:40 UTC3h 25m
2026-07-05 ASA1429 SJD → SFO Jul 5, 18:10 UTCJul 5, 21:00 UTC2h 50m
2026-07-05 ASA562 BUR → PDX Jul 5, 14:35 UTCJul 5, 16:20 UTC1h 45m
2026-07-04 ASA1386 PDX → BUR Jul 4, 21:55 UTCJul 4, 23:50 UTC1h 55m
2026-07-04 ASA251 GEG → PDX Jul 4, 19:55 UTCJul 4, 20:45 UTC50m
2026-07-04 ASA250 PDX → GEG Jul 4, 17:50 UTCJul 4, 18:35 UTC45m
2026-07-04 ASA1626 DEN → PDX Jul 4, 14:10 UTCJul 4, 16:30 UTC2h 20m
2026-07-04 ASA752 ANC → DEN Jul 4, 07:30 UTCJul 4, 12:10 UTC4h 40m
2026-07-04 ASA663 PDX → PHX Jul 4, 03:05 UTCJul 4, 06:10 UTC3h 5m

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 N529AS page for operator, model, and routing details .

Mode-S A6AA6E frequently asked

What is Mode-S code A6AA6E?
A6AA6E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N529AS.
Where is Mode-S A6AA6E registered?
Mode-S code A6AA6E 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 A6AA6E broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6AA6E, octal 51525156, decimal 10,922,606.
What flights does A6AA6E operate?
Mode-S A6AA6E has broadcast 20 distinct callsigns, including ASA799, ASA429, ASA368, ASA301, ASA264.