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sensors Mode-S transponder

A1C90E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N214HA · AIRBUS A-321neo · operated by HAWAIIAN AIRLINES INC

Hex
A1C90E
Octal
50344416
Decimal
10,602,766
Country
US
Tail
N214HA
Type
A21N
No current signal · last broadcast 7h ago
Flights observed
244
Distinct callsigns
20
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S A1C90E.

Country allocation

The ICAO 24-bit address A1C90E 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
ASA869 - 13 2026-07-11
ASA880 - 12 2026-07-13
ASA870 - 12 2026-07-11
ASA931 - 11 2026-07-03
ASA879 Alaska Airlines 10 2026-07-10
ASA848 Alaska Airlines 9 2026-06-05
ASA867 Alaska Airlines 8 2026-05-28
ASA855 - 8 2026-07-12
ASA839 - 8 2026-07-12
ASA932 - 7 2026-07-02
ASA868 Alaska Airlines 7 2026-05-28
ASA965 Alaska Airlines 6 2026-06-10
ASA960 - 6 2026-07-04
ASA953 - 6 2026-07-01
ASA840 - 6 2026-07-12
ASA972 - 5 2026-06-29
ASA959 - 5 2026-06-28
ASA841 - 5 2026-07-13
ASA966 Alaska Airlines 4 2026-06-10
ASA923 Alaska Airlines 4 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ASA884 - Jul 14, 02:55 UTCJul 14, 03:45 UTC50m
2026-07-13 ASA883 - Jul 13, 15:20 UTCJul 13, 20:30 UTC5h 10m
2026-07-13 ASA880 - Jul 13, 12:10 UTCJul 13, 13:05 UTC55m
2026-07-13 ASA880 - Jul 13, 07:50 UTCJul 13, 08:05 UTC15m
2026-07-13 ASA841 - Jul 13, 05:40 UTCJul 13, 06:01 UTC20m
2026-07-13 ASA841 - Jul 13, 00:45 UTCJul 13, 01:40 UTC55m
2026-07-12 ASA840 - Jul 12, 22:10 UTCJul 12, 23:00 UTC50m
2026-07-12 ASA840 - Jul 12, 17:55 UTCJul 12, 18:10 UTC15m
2026-07-12 ASA855 - Jul 12, 11:30 UTCJul 12, 11:45 UTC15m
2026-07-12 ASA855 - Jul 12, 06:15 UTCJul 12, 07:20 UTC1h 5m
2026-07-12 ASA839 - Jul 12, 03:35 UTCJul 12, 04:30 UTC55m
2026-07-11 ASA839 SEA → LIH Jul 11, 23:05 UTCJul 11, 23:15 UTC10m
2026-07-11 ASA869 - Jul 11, 14:15 UTCJul 11, 19:40 UTC5h 25m
2026-07-11 ASA870 - Jul 11, 03:30 UTCJul 11, 04:01 UTC30m
2026-07-10 ASA870 - Jul 10, 23:10 UTCJul 10, 23:30 UTC20m
2026-07-10 ASA879 SFO → OGG Jul 10, 21:00 UTCJul 10, 21:15 UTC15m
2026-07-10 ASA879 SFO → OGG Jul 10, 16:00 UTCJul 10, 16:50 UTC50m
2026-07-10 ASA880 - Jul 10, 12:45 UTCJul 10, 13:35 UTC50m
2026-07-10 ASA880 - Jul 10, 08:30 UTCJul 10, 08:45 UTC15m
2026-07-10 ASA841 PDX → HNL Jul 10, 01:20 UTCJul 10, 06:30 UTC5h 10m
2026-07-09 ASA840 - Jul 9, 22:30 UTCJul 9, 23:25 UTC55m
2026-07-09 ASA840 - Jul 9, 18:15 UTCJul 9, 18:25 UTC10m
2026-07-06 ASA879 SFO → OGG Jul 6, 20:20 UTCJul 6, 20:50 UTC30m
2026-07-06 ASA879 SFO → OGG Jul 6, 15:30 UTCJul 6, 16:15 UTC45m
2026-07-06 ASA880 - Jul 6, 12:40 UTCJul 6, 13:30 UTC50m
2026-07-06 ASA880 - Jul 6, 08:15 UTCJul 6, 08:35 UTC20m
2026-07-06 ASA841 - Jul 6, 06:10 UTCJul 6, 06:30 UTC20m
2026-07-06 ASA841 - Jul 6, 01:10 UTCJul 6, 02:00 UTC50m
2026-07-05 ASA840 - Jul 5, 22:25 UTCJul 5, 23:20 UTC55m
2026-07-05 ASA840 - Jul 5, 18:10 UTCJul 5, 18:30 UTC20m
2026-07-05 ASA855 SEA → SJC Jul 5, 09:05 UTCJul 5, 09:20 UTC15m
2026-07-05 ASA855 SEA → SJC Jul 5, 03:45 UTCJul 5, 04:40 UTC55m
2026-07-05 ASA839 SEA → LIH Jul 5, 01:05 UTCJul 5, 01:55 UTC50m
2026-07-04 ASA839 SEA → LIH Jul 4, 20:35 UTCJul 4, 20:50 UTC15m
2026-07-04 ASA9809 - Jul 4, 13:15 UTCJul 4, 18:20 UTC5h 5m
2026-07-04 ASA960 - Jul 4, 01:30 UTCJul 4, 02:15 UTC45m
2026-07-03 ASA931 - Jul 3, 14:30 UTCJul 3, 15:30 UTC1h 0m
2026-07-02 ASA932 SJC → LAS Jul 2, 14:10 UTCJul 3, 01:50 UTC11h 40m
2026-07-01 ASA953 SJC → SJC Jul 1, 17:30 UTCJul 2, 04:40 UTC11h 10m
2026-06-30 ASA971 LGB → SJC Jun 30, 15:20 UTCJul 1, 02:45 UTC11h 25m
2026-06-29 ASA972 - Jun 29, 02:30 UTCJun 29, 03:05 UTC35m
2026-06-28 ASA959 - Jun 28, 15:34 UTCJun 28, 16:14 UTC40m
2026-06-28 ASA960 - Jun 28, 01:44 UTCJun 28, 02:29 UTC45m
2026-06-27 ASA931 - Jun 27, 14:25 UTCJun 27, 15:24 UTC1h 0m
2026-06-27 ASA932 - Jun 27, 01:00 UTCJun 27, 01:54 UTC55m
2026-06-26 ASA953 SJC → OGG Jun 26, 14:25 UTCJun 26, 15:05 UTC40m
2026-06-26 ASA921 - Jun 26, 03:10 UTCJun 26, 03:54 UTC45m
2026-06-25 ASA921 - Jun 25, 22:59 UTCJun 25, 23:14 UTC15m
2026-06-25 ASA825 - Jun 25, 21:29 UTCJun 25, 21:35 UTC5m
2026-06-25 ASA825 - Jun 25, 16:35 UTCJun 25, 17:09 UTC35m

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 N214HA page for operator, model, and routing details .

Mode-S A1C90E frequently asked

What is Mode-S code A1C90E?
A1C90E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N214HA.
Where is Mode-S A1C90E registered?
Mode-S code A1C90E 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 A1C90E broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1C90E, octal 50344416, decimal 10,602,766.
What flights does A1C90E operate?
Mode-S A1C90E has broadcast 20 distinct callsigns, including ASA869, ASA880, ASA870, ASA931, ASA879.