Apparatus

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sensors Mode-S transponder

AA98A4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N782HA · BOEING 787-9 Dreamliner · operated by HAWAIIAN AIRLINES INC

Hex
AA98A4
Octal
52514244
Decimal
11,180,196
Country
US
Tail
N782HA
Type
B789
No current signal · last broadcast 14h ago
Flights observed
93
Distinct callsigns
20
Country
US
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S AA98A4.

Country allocation

The ICAO 24-bit address AA98A4 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
ASA142 Alaska Airlines 19 2026-05-29
ASA141 Alaska Airlines 16 2026-05-29
ASA823 Alaska Airlines 11 2026-04-20
ASA824 Alaska Airlines 7 2026-04-21
ASA181 Alaska Airlines 4 2026-05-23
ASA180 Alaska Airlines 4 2026-05-23
ASA172 Alaska Airlines 4 2026-05-13
ASA171 Alaska Airlines 4 2026-05-11
ASA9984 Alaska Airlines 2 2026-04-18
ASA991 Alaska Airlines 2 2026-04-15
ASA990 Alaska Airlines 2 2026-04-14
ASA900 Alaska Airlines 2 2026-04-15
ASA893 Alaska Airlines 2 2026-04-25
ASA131 Alaska Airlines 2 2026-05-14
ASA101 Alaska Airlines 2 2026-05-25
ASA100 Alaska Airlines 2 2026-05-25
ASA9983 Alaska Airlines 1 2026-04-19
ASA9966 Alaska Airlines 1 2026-04-23
ASA9965 Alaska Airlines 1 2026-04-22
ASA841 - 1 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ASA142 SJD → SEA May 29, 07:45 UTCMay 29, 12:40 UTC4h 55m
2026-05-29 ASA141 PHX → ANC May 29, 05:20 UTCMay 29, 05:35 UTC15m
2026-05-29 ASA141 PHX → ANC May 29, 00:05 UTCMay 29, 00:55 UTC50m
2026-05-28 ASA120 SEA → ONT May 28, 10:50 UTCMay 28, 20:35 UTC9h 45m
2026-05-27 ASA119 SEA → ONT May 27, 21:05 UTCMay 28, 08:10 UTC11h 5m
2026-05-27 ASA142 SJD → SEA May 27, 07:40 UTCMay 27, 12:55 UTC5h 15m
2026-05-27 ASA141 PHX → ANC May 27, 00:10 UTCMay 27, 05:09 UTC5h 0m
2026-05-25 ASA101 PDX → PHX May 25, 16:35 UTCMay 26, 01:49 UTC9h 14m
2026-05-25 ASA100 ANC → SEA May 25, 05:00 UTCMay 25, 13:35 UTC8h 35m
2026-05-24 ASA101 PDX → PHX May 24, 16:35 UTCMay 24, 21:05 UTC4h 30m
2026-05-24 ASA100 ANC → SEA May 24, 05:00 UTCMay 24, 13:45 UTC8h 45m
2026-05-23 ASA181 SJD → SEA May 23, 13:55 UTCMay 24, 00:30 UTC10h 36m
2026-05-23 ASA180 PVR → LAX May 23, 01:20 UTCMay 23, 11:30 UTC10h 9m
2026-05-21 ASA181 SJD → SEA May 21, 13:50 UTCMay 22, 00:30 UTC10h 40m
2026-05-21 ASA180 PVR → LAX May 21, 00:50 UTCMay 21, 11:15 UTC10h 25m
2026-05-20 ASA142 SJD → SEA May 20, 11:55 UTCMay 20, 13:00 UTC1h 5m
2026-05-20 ASA142 SJD → SEA May 20, 07:40 UTCMay 20, 07:50 UTC10m
2026-05-20 ASA141 PHX → ANC May 20, 00:05 UTCMay 20, 04:55 UTC4h 51m
2026-05-18 ASA181 SJD → SEA May 18, 13:50 UTCMay 19, 00:40 UTC10h 49m
2026-05-18 ASA180 PVR → LAX May 18, 01:25 UTCMay 18, 11:40 UTC10h 15m
2026-05-17 ASA142 SJD → SEA May 17, 11:50 UTCMay 17, 12:55 UTC1h 5m
2026-05-17 ASA142 SJD → SEA May 17, 07:35 UTCMay 17, 07:45 UTC10m
2026-05-17 ASA141 PHX → ANC May 17, 04:30 UTCMay 17, 04:50 UTC20m
2026-05-16 ASA141 PHX → ANC May 16, 23:40 UTCMay 17, 00:30 UTC50m
2026-05-15 ASA181 SJD → SEA May 15, 13:45 UTCMay 16, 00:20 UTC10h 34m
2026-05-15 ASA180 PVR → LAX May 15, 00:55 UTCMay 15, 11:05 UTC10h 10m
2026-05-14 ASA142 SJD → SEA May 14, 12:00 UTCMay 14, 12:50 UTC50m
2026-05-14 ASA142 SJD → SEA May 14, 08:00 UTCMay 14, 08:10 UTC10m
2026-05-14 ASA131 DAL → SFO May 14, 05:10 UTCMay 14, 05:30 UTC20m
2026-05-13 ASA131 DAL → SFO May 13, 23:45 UTCMay 14, 00:40 UTC55m
2026-05-13 ASA172 OTZ → ANC May 13, 10:55 UTCMay 13, 20:10 UTC9h 15m
2026-05-11 ASA171 ANC → OTZ May 11, 21:10 UTCMay 12, 07:35 UTC10h 25m
2026-05-10 ASA142 SJD → SEA May 10, 22:20 UTCMay 10, 23:09 UTC50m
2026-05-10 ASA142 SJD → SEA May 10, 18:20 UTCMay 10, 18:35 UTC15m
2026-05-10 ASA141 PHX → ANC May 10, 07:10 UTCMay 10, 07:30 UTC20m
2026-05-10 ASA141 PHX → ANC May 10, 01:34 UTCMay 10, 02:20 UTC45m
2026-05-09 ASA172 OTZ → ANC May 9, 11:55 UTCMay 9, 21:00 UTC9h 5m
2026-05-08 ASA171 ANC → OTZ May 8, 21:35 UTCMay 9, 09:00 UTC11h 25m
2026-05-07 ASA142 SJD → SEA May 7, 21:25 UTCMay 7, 22:20 UTC55m
2026-05-07 ASA142 SJD → SEA May 7, 17:30 UTCMay 7, 17:35 UTC5m
2026-05-07 ASA141 PHX → ANC May 7, 06:25 UTCMay 7, 06:45 UTC20m
2026-05-07 ASA141 PHX → ANC May 7, 01:15 UTCMay 7, 02:00 UTC45m
2026-05-06 ASA142 SJD → SEA May 6, 17:30 UTCMay 6, 22:30 UTC4h 59m
2026-05-06 ASA141 PHX → ANC May 6, 01:30 UTCMay 6, 07:01 UTC5h 30m
2026-05-05 ASA142 SJD → SEA May 5, 17:25 UTCMay 5, 22:40 UTC5h 15m
2026-05-05 ASA141 PHX → ANC May 5, 01:05 UTCMay 5, 06:15 UTC5h 10m
2026-05-04 ASA142 SJD → SEA May 4, 17:25 UTCMay 4, 22:40 UTC5h 16m
2026-05-04 ASA141 PHX → ANC May 4, 01:24 UTCMay 4, 06:35 UTC5h 10m
2026-05-03 ASA142 SJD → SEA May 3, 17:20 UTCMay 3, 22:34 UTC5h 15m
2026-05-03 ASA141 PHX → ANC May 3, 01:15 UTCMay 3, 06:10 UTC4h 54m

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 N782HA page for operator, model, and routing details .

Mode-S AA98A4 frequently asked

What is Mode-S code AA98A4?
AA98A4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N782HA.
Where is Mode-S AA98A4 registered?
Mode-S code AA98A4 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 AA98A4 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA98A4, octal 52514244, decimal 11,180,196.
What flights does AA98A4 operate?
Mode-S AA98A4 has broadcast 20 distinct callsigns, including ASA142, ASA141, ASA823, ASA824, ASA181.