Apparatus

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sensors Mode-S transponder

A5B764

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N468AS · BOEING 737-900 · operated by ALASKA AIRLINES INC

Hex
A5B764
Octal
51333544
Decimal
10,860,388
Country
US
Tail
N468AS
Type
B739
Broadcasting now · callsign ASA49 · 25,200 ft
Flights observed
439
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Current position

A5B764 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A5B764 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 5 2026-05-07
ASA301 Alaska Airlines 5 2026-04-20
ASA21 - 5 2026-06-24
ASA571 Alaska Airlines 4 2026-07-21
ASA402 - 4 2026-07-13
ASA368 Alaska Airlines 4 2026-04-20
ASA200 Alaska Airlines 4 2026-07-26
ASA99 - 3 2026-07-05
ASA84 Alaska Airlines 3 2026-06-01
ASA761 - 3 2026-06-20
ASA742 - 3 2026-07-13
ASA725 Alaska Airlines 3 2026-07-09
ASA687 Alaska Airlines 3 2026-05-09
ASA682 Alaska Airlines 3 2026-05-10
ASA673 - 3 2026-07-04
ASA575 Alaska Airlines 3 2026-07-22
ASA56 Alaska Airlines 3 2026-06-11
ASA529 - 3 2026-07-03
ASA512 Alaska Airlines 3 2026-06-16
ASA501 Alaska Airlines 3 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASA513 SNA → SEA Jul 26, 18:15 UTCJul 26, 23:00 UTC4h 45m
2026-07-26 ASA200 SJC → SJD Jul 26, 07:45 UTCJul 26, 08:00 UTC15m
2026-07-26 ASA200 SJC → SJD Jul 26, 02:25 UTCJul 26, 03:10 UTC45m
2026-07-26 ASA200 SJC → SJD Jul 26, 02:20 UTCJul 26, 08:03 UTC5h 43m
2026-07-25 ASA439 SEA → SFO Jul 25, 20:20 UTCJul 26, 00:25 UTC4h 5m
2026-07-25 ASA1420 SJC → AUS Jul 25, 15:10 UTCJul 25, 18:50 UTC3h 40m
2026-07-25 ASA609 LAX → PDX Jul 25, 11:00 UTCJul 25, 13:15 UTC2h 15m
2026-07-25 ASA609 LAX → PDX Jul 25, 10:05 UTCJul 25, 10:55 UTC50m
2026-07-25 ASA1532 SEA → LAX Jul 25, 04:25 UTCJul 25, 08:24 UTC3h 59m
2026-07-25 ASA1532 SEA → LAX Jul 25, 04:25 UTCJul 25, 08:25 UTC4h 0m
2026-07-25 ASA1532 SEA → LAX Jul 25, 01:55 UTCJul 25, 03:25 UTC1h 30m
2026-07-24 ASA731 SEA → SFO Jul 24, 21:55 UTCJul 25, 00:20 UTC2h 25m
2026-07-24 ASA684 SFO → LAS Jul 24, 18:25 UTCJul 24, 20:45 UTC2h 20m
2026-07-24 ASA401 DAL → SFO Jul 24, 14:35 UTCJul 24, 16:40 UTC2h 5m
2026-07-24 ASA1457 LAS → PAE Jul 24, 06:10 UTCJul 24, 06:35 UTC25m
2026-07-24 ASA1457 LAS → PAE Jul 24, 06:07 UTCJul 24, 06:38 UTC31m
2026-07-24 ASA371 FLL → SFO Jul 24, 03:40 UTCJul 24, 04:30 UTC50m
2026-07-24 ASA1433 SJD → SFO Jul 24, 01:50 UTCJul 24, 02:25 UTC35m
2026-07-23 ASA652 RNO → SEA Jul 23, 22:20 UTCJul 24, 00:05 UTC1h 45m
2026-07-23 ASA652 RNO → SEA Jul 23, 22:12 UTCJul 23, 23:53 UTC1h 41m
2026-07-23 ASA633 SAN → SEA Jul 23, 19:20 UTCJul 23, 21:10 UTC1h 50m
2026-07-23 ASA587 ORD → SEA Jul 23, 13:40 UTCJul 23, 17:35 UTC3h 55m
2026-07-23 ASA1724 ANC → ORD Jul 23, 05:35 UTCJul 23, 10:50 UTC5h 15m
2026-07-22 ASA433 IAD → SFO Jul 22, 18:40 UTCJul 22, 22:10 UTC3h 30m
2026-07-22 ASA670 PDX → LAS Jul 22, 11:20 UTCJul 22, 16:20 UTC5h 0m
2026-07-22 ASA670 PDX → LAS Jul 22, 11:30 UTCJul 22, 16:24 UTC4h 54m
2026-07-22 ASA677 LAS → SEA Jul 22, 05:00 UTCJul 22, 05:25 UTC25m
2026-07-22 ASA575 DFW → SEA Jul 22, 01:05 UTCJul 22, 03:10 UTC2h 5m
2026-07-21 ASA571 MCO → SAN Jul 21, 21:30 UTCJul 21, 23:55 UTC2h 25m
2026-07-21 ASA720 SEA → OAK Jul 21, 17:15 UTCJul 21, 19:15 UTC2h 0m
2026-07-21 ASA488 SEA → IND Jul 21, 13:45 UTCJul 21, 15:55 UTC2h 10m
2026-07-21 ASA1301 LAX → SEA Jul 21, 01:25 UTCJul 21, 03:25 UTC2h 0m
2026-07-20 ASA713 SFO → JAC Jul 20, 21:55 UTCJul 20, 23:50 UTC1h 55m
2026-07-20 ASA713 SFO → JAC Jul 20, 21:52 UTCJul 20, 23:40 UTC1h 48m
2026-07-20 ASA1467 - Jul 20, 18:20 UTCJul 20, 20:05 UTC1h 45m
2026-07-20 ASA627 PDX → LAS Jul 20, 14:45 UTCJul 20, 16:40 UTC1h 55m
2026-07-20 ASA558 SEA → SAN Jul 20, 11:25 UTCJul 20, 12:15 UTC50m
2026-07-19 ASA223 - Jul 19, 23:20 UTCJul 20, 00:10 UTC50m
2026-07-19 ASA361 IAD → SEA Jul 19, 13:45 UTCJul 19, 18:55 UTC5h 10m
2026-07-19 ASA367 SEA → IAD Jul 19, 06:05 UTCJul 19, 10:20 UTC4h 15m
2026-07-18 ASA304 SEA → LAX Jul 18, 22:25 UTCJul 19, 04:15 UTC5h 50m
2026-07-18 ASA306 SEA → BOS Jul 18, 15:50 UTCJul 18, 20:50 UTC5h 0m
2026-07-18 ASA279 GEG → SEA Jul 18, 13:25 UTCJul 18, 14:05 UTC40m
2026-07-18 ASA1614 LAX → GEG Jul 18, 03:00 UTCJul 18, 04:50 UTC1h 50m
2026-07-17 ASA1419 - Jul 17, 23:25 UTCJul 18, 00:50 UTC1h 25m
2026-07-17 ASA1418 - Jul 17, 17:50 UTCJul 17, 19:15 UTC1h 25m
2026-07-17 ASA1418 LAX → GDL Jul 17, 17:57 UTCJul 17, 20:33 UTC2h 36m
2026-07-17 ASA492 - Jul 17, 03:10 UTCJul 17, 05:30 UTC2h 20m
2026-07-17 ASA293 - Jul 17, 00:25 UTCJul 17, 01:00 UTC35m
2026-07-17 ASA293 GEG → SEA Jul 17, 00:10 UTCJul 17, 00:57 UTC47m

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 N468AS page for operator, model, and routing details .

Mode-S A5B764 frequently asked

What is Mode-S code A5B764?
A5B764 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N468AS.
Where is Mode-S A5B764 registered?
Mode-S code A5B764 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 A5B764 broadcasting right now?
Yes. Mode-S A5B764 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5B764, octal 51333544, decimal 10,860,388.
What flights does A5B764 operate?
Mode-S A5B764 has broadcast 20 distinct callsigns, including ASA67, ASA301, ASA21, ASA571, ASA402.