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sensors Mode-S transponder

A5B3AD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N467AS · BOEING 737-900 · operated by ALASKA AIRLINES INC

Hex
A5B3AD
Octal
51331655
Decimal
10,859,437
Country
US
Tail
N467AS
Type
B739
No current signal · last broadcast Jul 26, 20:40 UTC
Flights observed
435
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:40 UTC

Last known position

Most recent position reported by Mode-S A5B3AD.

Country allocation

The ICAO 24-bit address A5B3AD 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
ASA1464 Alaska Airlines 6 2026-07-18
ASA626 - 5 2026-06-20
ASA221 Alaska Airlines 5 2026-05-25
ASA746 - 4 2026-07-02
ASA603 - 4 2026-07-02
ASA572 - 4 2026-07-11
ASA561 Alaska Airlines 4 2026-06-08
ASA473 - 4 2026-07-17
ASA465 - 4 2026-07-19
ASA453 Alaska Airlines 4 2026-05-17
ASA325 - 4 2026-06-26
ASA324 - 4 2026-06-26
ASA272 - 4 2026-06-29
ASA259 - 4 2026-06-25
ASA98 - 3 2026-06-29
ASA84 Alaska Airlines 3 2026-06-03
ASA754 Alaska Airlines 3 2026-04-13
ASA700 Alaska Airlines 3 2026-04-20
ASA660 Alaska Airlines 3 2026-04-23
ASA596 - 3 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASA1331 PHL → SEA Jul 26, 15:25 UTCJul 26, 20:34 UTC5h 9m
2026-07-26 ASA616 TPA → SFO Jul 26, 07:05 UTCJul 26, 17:15 UTC10h 10m
2026-07-25 ASA1326 PDX → SFO Jul 25, 22:25 UTCJul 26, 03:50 UTC5h 25m
2026-07-25 ASA695 SJC → PDX Jul 25, 18:15 UTCJul 25, 20:25 UTC2h 10m
2026-07-25 ASA1630 EWR → PDX Jul 25, 10:50 UTCJul 25, 16:15 UTC5h 25m
2026-07-25 ASA263 IAD → SEA Jul 25, 00:00 UTCJul 25, 04:25 UTC4h 25m
2026-07-24 ASA263 IAD → SEA Jul 24, 23:56 UTCJul 25, 04:01 UTC4h 5m
2026-07-24 ASA654 SEA → ABQ Jul 24, 19:45 UTCJul 24, 21:50 UTC2h 5m
2026-07-24 ASA1364 PDX → SJD Jul 24, 16:15 UTCJul 24, 18:30 UTC2h 15m
2026-07-22 ASA640 TPA → SEA Jul 22, 11:35 UTCJul 22, 16:40 UTC5h 5m
2026-07-22 ASA640 TPA → SEA Jul 22, 11:25 UTCJul 22, 16:50 UTC5h 25m
2026-07-22 ASA639 PHX → SEA Jul 22, 04:35 UTCJul 22, 05:25 UTC50m
2026-07-21 ASA493 SEA → BOS Jul 21, 04:10 UTCJul 21, 06:20 UTC2h 10m
2026-07-20 ASA602 - Jul 20, 23:50 UTCJul 21, 02:00 UTC2h 10m
2026-07-20 ASA596 - Jul 20, 20:15 UTCJul 20, 21:50 UTC1h 35m
2026-07-20 ASA596 KTN → SEA Jul 20, 20:11 UTCJul 20, 21:44 UTC1h 33m
2026-07-20 ASA653 - Jul 20, 17:35 UTCJul 20, 18:55 UTC1h 20m
2026-07-20 ASA1409 GDL → SJC Jul 20, 13:30 UTCJul 20, 14:50 UTC1h 20m
2026-07-20 ASA1621 SAN → SMF Jul 20, 05:40 UTCJul 20, 06:50 UTC1h 10m
2026-07-20 ASA1388 LAX → SJD Jul 20, 01:40 UTCJul 20, 04:05 UTC2h 25m
2026-07-19 ASA465 - Jul 19, 22:05 UTCJul 20, 00:10 UTC2h 5m
2026-07-19 ASA465 SAN → SEA Jul 19, 22:00 UTCJul 20, 00:03 UTC2h 3m
2026-07-19 ASA467 SFO → ZIH Jul 19, 17:45 UTCJul 19, 20:05 UTC2h 20m
2026-07-19 ASA491 RDU → SEA Jul 19, 13:35 UTCJul 19, 14:55 UTC1h 20m
2026-07-19 ASA491 RDU → SEA Jul 19, 13:30 UTCJul 19, 14:50 UTC1h 20m
2026-07-19 ASA706 SEA → OAK Jul 19, 00:55 UTCJul 19, 02:40 UTC1h 45m
2026-07-18 ASA567 PDX → SJD Jul 18, 21:15 UTCJul 18, 23:15 UTC2h 0m
2026-07-18 ASA565 SEA → ONT Jul 18, 17:50 UTCJul 18, 20:05 UTC2h 15m
2026-07-18 ASA1473 - Jul 18, 13:45 UTCJul 18, 15:55 UTC2h 10m
2026-07-18 ASA1473 SAN → SEA Jul 18, 13:42 UTCJul 18, 15:45 UTC2h 3m
2026-07-18 ASA336 PDX → FLL Jul 18, 03:40 UTCJul 18, 06:05 UTC2h 25m
2026-07-18 ASA1464 SEA → LAX Jul 18, 00:29 UTCJul 18, 01:54 UTC1h 25m
2026-07-18 ASA1464 SEA → LAX Jul 18, 00:27 UTCJul 18, 01:45 UTC1h 18m
2026-07-17 ASA1328 SEA → OAK Jul 17, 21:25 UTCJul 17, 23:10 UTC1h 45m
2026-07-17 ASA473 STL → SEA Jul 17, 14:10 UTCJul 17, 17:55 UTC3h 45m
2026-07-17 ASA473 STL → SEA Jul 17, 14:21 UTCJul 17, 17:47 UTC3h 26m
2026-07-17 ASA615 SEA → STL Jul 17, 02:54 UTCJul 17, 06:20 UTC3h 25m
2026-07-16 ASA1464 OAK → SEA Jul 16, 23:49 UTCJul 17, 01:20 UTC1h 30m
2026-07-16 ASA1464 OAK → SEA Jul 16, 23:47 UTCJul 17, 01:05 UTC1h 18m
2026-07-16 ASA1328 SEA → OAK Jul 16, 20:55 UTCJul 16, 22:40 UTC1h 45m
2026-07-16 ASA299 - Jul 16, 11:45 UTCJul 16, 17:00 UTC5h 15m
2026-07-16 ASA1631 PDX → EWR Jul 16, 04:45 UTCJul 16, 09:10 UTC4h 25m
2026-07-15 ASA1396 AUS → PDX Jul 15, 23:20 UTCJul 16, 02:55 UTC3h 35m
2026-07-15 ASA540 PDX → AUS Jul 15, 18:30 UTCJul 15, 22:05 UTC3h 35m
2026-07-15 ASA541 AUS → PDX Jul 15, 13:25 UTCJul 15, 16:55 UTC3h 30m
2026-07-15 ASA372 SEA → AUS Jul 15, 01:40 UTCJul 15, 05:20 UTC3h 40m
2026-07-14 ASA637 PHX → SEA Jul 14, 17:15 UTCJul 14, 19:35 UTC2h 20m
2026-07-14 ASA644 SEA → PHX Jul 14, 04:10 UTCJul 14, 06:45 UTC2h 35m
2026-07-13 ASA425 PHX → SEA Jul 13, 23:30 UTCJul 14, 02:00 UTC2h 30m
2026-07-13 ASA747 SEA → PHX Jul 13, 19:40 UTCJul 13, 22:15 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 N467AS page for operator, model, and routing details .

Mode-S A5B3AD frequently asked

What is Mode-S code A5B3AD?
A5B3AD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N467AS.
Where is Mode-S A5B3AD registered?
Mode-S code A5B3AD 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 A5B3AD broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5B3AD, octal 51331655, decimal 10,859,437.
What flights does A5B3AD operate?
Mode-S A5B3AD has broadcast 20 distinct callsigns, including ASA1464, ASA626, ASA221, ASA746, ASA603.