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sensors Mode-S transponder

AA9C5B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N783HA · operated by HAWAIIAN AIRLINES INC

Hex
AA9C5B
Octal
52516133
Decimal
11,181,147
Country
US
Tail
N783HA
Type
B789
No current signal · last broadcast Jul 26, 22:20 UTC
Flights observed
213
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:20 UTC

Last known position

Most recent position reported by Mode-S AA9C5B.

Country allocation

The ICAO 24-bit address AA9C5B 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
ASA141 Alaska Airlines 22 2026-06-06
ASA121 Alaska Airlines 19 2026-07-24
ASA181 Alaska Airlines 18 2026-07-26
ASA180 Alaska Airlines 18 2026-07-26
ASA142 Alaska Airlines 18 2026-06-06
ASA122 Alaska Airlines 17 2026-07-24
ASA120 Alaska Airlines 16 2026-07-25
ASA119 Alaska Airlines 16 2026-07-24
ASA101 - 12 2026-07-18
ASA100 - 12 2026-07-18
ASA871 Alaska Airlines 9 2026-04-19
ASA842 Alaska Airlines 9 2026-04-19
ASA841 Alaska Airlines 4 2026-04-19
ASA9888 - 3 2026-04-16
ASA872 Alaska Airlines 2 2026-04-20
ASA840 Alaska Airlines 2 2026-04-23
ASA828 Alaska Airlines 2 2026-04-23
ASA824 Alaska Airlines 2 2026-04-14
ASA823 Alaska Airlines 2 2026-04-14
ASA172 Alaska Airlines 2 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASA181 SJD → SEA Jul 26, 13:55 UTCJul 26, 22:20 UTC8h 25m
2026-07-26 ASA180 PVR → LAX Jul 26, 01:15 UTCJul 26, 11:00 UTC9h 46m
2026-07-25 ASA120 SEA → ONT Jul 25, 11:00 UTCJul 25, 20:50 UTC9h 50m
2026-07-24 ASA119 SEA → ONT Jul 24, 21:25 UTCJul 25, 08:15 UTC10h 50m
2026-07-24 ASA122 BUR → PDX Jul 24, 11:45 UTCJul 24, 12:45 UTC1h 0m
2026-07-24 ASA122 BUR → PDX Jul 24, 07:50 UTCJul 24, 08:05 UTC15m
2026-07-24 ASA121 LAS → SFO Jul 24, 04:55 UTCJul 24, 05:05 UTC10m
2026-07-23 ASA121 LAS → SFO Jul 23, 23:45 UTCJul 24, 00:30 UTC45m
2026-07-23 ASA120 SEA → ONT Jul 23, 11:05 UTCJul 23, 20:55 UTC9h 50m
2026-07-22 ASA119 SEA → ONT Jul 22, 21:45 UTCJul 23, 08:15 UTC10h 30m
2026-07-21 ASA181 SJD → SEA Jul 21, 13:55 UTCJul 22, 00:55 UTC11h 0m
2026-07-21 ASA180 PVR → LAX Jul 21, 00:55 UTCJul 21, 11:10 UTC10h 15m
2026-07-20 ASA120 SEA → ONT Jul 20, 10:50 UTCJul 20, 20:35 UTC9h 45m
2026-07-19 ASA119 SEA → ICN Jul 19, 21:30 UTCJul 20, 07:50 UTC10h 20m
2026-07-18 ASA101 - Jul 18, 16:40 UTCJul 19, 02:00 UTC9h 20m
2026-07-18 ASA100 SEA → LHR Jul 18, 05:10 UTCJul 18, 13:50 UTC8h 40m
2026-07-17 ASA101 - Jul 17, 16:24 UTCJul 18, 01:39 UTC9h 15m
2026-07-17 ASA100 SEA → LHR Jul 17, 05:10 UTCJul 17, 14:10 UTC9h 0m
2026-07-16 ASA181 - Jul 16, 14:29 UTCJul 17, 01:25 UTC10h 55m
2026-07-16 ASA180 SEA → FCO Jul 16, 00:40 UTCJul 16, 10:55 UTC10h 15m
2026-07-15 ASA120 ICN → SEA Jul 15, 10:45 UTCJul 15, 20:55 UTC10h 10m
2026-07-13 ASA119 SEA → ICN Jul 13, 21:30 UTCJul 14, 08:25 UTC10h 55m
2026-07-12 ASA101 LHR → SEA Jul 12, 16:35 UTCJul 13, 02:10 UTC9h 35m
2026-07-12 ASA100 SEA → LHR Jul 12, 05:25 UTCJul 12, 14:10 UTC8h 45m
2026-07-11 ASA181 - Jul 11, 14:45 UTCJul 12, 01:50 UTC11h 5m
2026-07-11 ASA180 - Jul 11, 01:55 UTCJul 11, 12:05 UTC10h 10m
2026-07-10 ASA120 ICN → SEA Jul 10, 11:10 UTCJul 10, 21:05 UTC9h 55m
2026-07-09 ASA119 SEA → ICN Jul 9, 21:35 UTCJul 10, 08:35 UTC11h 0m
2026-07-08 ASA101 - Jul 8, 16:45 UTCJul 9, 01:45 UTC9h 0m
2026-07-08 ASA100 SEA → LHR Jul 8, 05:25 UTCJul 8, 14:35 UTC9h 10m
2026-07-07 ASA181 - Jul 7, 13:45 UTCJul 8, 00:45 UTC11h 0m
2026-07-07 ASA180 SEA → FCO Jul 7, 00:55 UTCJul 7, 10:50 UTC9h 55m
2026-07-06 ASA120 ICN → SEA Jul 6, 11:25 UTCJul 6, 20:45 UTC9h 20m
2026-07-05 ASA119 SEA → ICN Jul 5, 21:50 UTCJul 6, 09:05 UTC11h 15m
2026-07-04 ASA101 - Jul 4, 16:40 UTCJul 5, 02:00 UTC9h 20m
2026-07-04 ASA100 SEA → LHR Jul 4, 05:15 UTCJul 4, 14:05 UTC8h 50m
2026-07-03 ASA181 - Jul 3, 13:45 UTCJul 4, 00:35 UTC10h 50m
2026-07-03 ASA180 SEA → FCO Jul 3, 01:10 UTCJul 3, 11:25 UTC10h 15m
2026-07-01 ASA101 LHR → SEA Jul 1, 16:35 UTCJul 2, 01:35 UTC9h 0m
2026-07-01 ASA100 SEA → LHR Jul 1, 05:10 UTCJul 1, 14:10 UTC9h 0m
2026-06-30 ASA181 - Jun 30, 13:55 UTCJul 1, 00:35 UTC10h 40m
2026-06-30 ASA180 - Jun 30, 01:04 UTCJun 30, 11:20 UTC10h 16m
2026-06-29 ASA122 - Jun 29, 12:00 UTCJun 29, 13:04 UTC1h 5m
2026-06-29 ASA121 LAS → SFO Jun 29, 04:55 UTCJun 29, 05:09 UTC15m
2026-06-29 ASA121 LAS → SFO Jun 29, 00:00 UTCJun 29, 00:49 UTC50m
2026-06-28 ASA120 ICN → SEA Jun 28, 10:50 UTCJun 28, 20:04 UTC9h 15m
2026-06-27 ASA119 SEA → ICN Jun 27, 21:29 UTCJun 28, 08:34 UTC11h 5m
2026-06-26 ASA101 - Jun 26, 17:25 UTCJun 27, 02:29 UTC9h 5m
2026-06-26 ASA100 SEA → LHR Jun 26, 05:39 UTCJun 26, 14:39 UTC9h 0m
2026-06-25 ASA101 - Jun 25, 16:39 UTCJun 26, 01:50 UTC9h 10m

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 N783HA page for operator, model, and routing details .

Mode-S AA9C5B frequently asked

What is Mode-S code AA9C5B?
AA9C5B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N783HA.
Where is Mode-S AA9C5B registered?
Mode-S code AA9C5B 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 AA9C5B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA9C5B, octal 52516133, decimal 11,181,147.
What flights does AA9C5B operate?
Mode-S AA9C5B has broadcast 20 distinct callsigns, including ASA141, ASA121, ASA181, ASA180, ASA142.