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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 Jul 26, 19:55 UTC
Flights observed
283
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 19:55 UTC

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
ASA870 Alaska Airlines 16 2026-07-25
ASA869 Alaska Airlines 15 2026-07-24
ASA880 Alaska Airlines 14 2026-07-23
ASA879 Alaska Airlines 14 2026-07-23
ASA931 - 11 2026-07-03
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
ASA923 - 6 2026-07-21
ASA840 - 6 2026-07-12
ASA972 - 5 2026-06-29
ASA971 Alaska Airlines 5 2026-07-25
ASA959 - 5 2026-06-28
ASA892 Alaska Airlines 5 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASA922 SFO → SEA Jul 26, 19:40 UTCJul 26, 19:55 UTC15m
2026-07-26 ASA922 SFO → SEA Jul 26, 14:45 UTCJul 26, 15:35 UTC50m
2026-07-26 ASA954 SEA → PDX Jul 26, 01:45 UTCJul 26, 02:45 UTC1h 0m
2026-07-25 ASA971 SFO → SEA Jul 25, 20:15 UTCJul 25, 20:25 UTC10m
2026-07-25 ASA971 SFO → SEA Jul 25, 15:25 UTCJul 25, 15:55 UTC30m
2026-07-25 ASA870 LIH → PDX Jul 25, 04:40 UTCJul 25, 05:15 UTC35m
2026-07-25 ASA870 LIH → PDX Jul 25, 00:25 UTCJul 25, 00:45 UTC20m
2026-07-24 ASA869 SJC → KOA Jul 24, 22:00 UTCJul 24, 22:30 UTC30m
2026-07-24 ASA869 SJC → KOA Jul 24, 17:15 UTCJul 24, 17:40 UTC25m
2026-07-24 ASA870 LIH → PDX Jul 24, 03:05 UTCJul 24, 03:35 UTC30m
2026-07-23 ASA870 LIH → PDX Jul 23, 22:50 UTCJul 23, 23:10 UTC20m
2026-07-23 ASA879 SFO → OGG Jul 23, 20:20 UTCJul 23, 20:40 UTC20m
2026-07-23 ASA879 SFO → OGG Jul 23, 15:20 UTCJul 23, 16:10 UTC50m
2026-07-23 ASA880 KOA → SEA Jul 23, 12:30 UTCJul 23, 13:20 UTC50m
2026-07-23 ASA880 KOA → SEA Jul 23, 08:20 UTCJul 23, 08:35 UTC15m
2026-07-23 ASSA894 - Jul 23, 00:55 UTCJul 23, 06:25 UTC5h 30m
2026-07-22 ASA892 HNL → SAN Jul 22, 17:45 UTCJul 22, 22:55 UTC5h 10m
2026-07-22 ASA843 SFO → LAX Jul 22, 03:05 UTCJul 22, 03:35 UTC30m
2026-07-22 ASA978 SEA → FAT Jul 22, 00:10 UTCJul 22, 01:00 UTC50m
2026-07-21 ASA923 - Jul 21, 14:10 UTCJul 21, 15:05 UTC55m
2026-07-21 ASA924 RDM → SEA Jul 21, 03:00 UTCJul 21, 04:00 UTC1h 0m
2026-07-20 ASA979 - Jul 20, 16:45 UTCJul 20, 17:40 UTC55m
2026-07-20 ASA842 HNL → SFO Jul 20, 13:35 UTCJul 20, 14:30 UTC55m
2026-07-20 ASA843 SFO → LAX Jul 20, 03:15 UTCJul 20, 08:10 UTC4h 55m
2026-07-20 ASA978 SEA → FAT Jul 20, 00:30 UTCJul 20, 01:35 UTC1h 5m
2026-07-19 ASA923 - Jul 19, 14:30 UTCJul 19, 15:05 UTC35m
2026-07-18 ASA968 LIH → OAK Jul 18, 23:50 UTCJul 19, 04:25 UTC4h 35m
2026-07-18 ASA963 - Jul 18, 16:40 UTCJul 18, 22:00 UTC5h 20m
2026-07-18 ASA845 SEA → GEG Jul 18, 04:35 UTCJul 18, 05:15 UTC40m
2026-07-17 ASA844 - Jul 17, 17:40 UTCJul 17, 18:15 UTC35m
2026-07-17 ASA853 - Jul 17, 14:35 UTCJul 17, 15:20 UTC45m
2026-07-17 ASA853 - Jul 17, 10:20 UTCJul 17, 10:40 UTC20m
2026-07-17 ASA894 - Jul 17, 00:35 UTCJul 17, 06:10 UTC5h 35m
2026-07-16 ASA892 - Jul 16, 22:15 UTCJul 16, 22:59 UTC45m
2026-07-16 ASA892 - Jul 16, 17:54 UTCJul 16, 18:10 UTC15m
2026-07-15 ASA879 - Jul 15, 20:15 UTCJul 15, 20:40 UTC25m
2026-07-15 ASA879 - Jul 15, 15:20 UTCJul 15, 16:10 UTC50m
2026-07-14 ASA884 - Jul 14, 22:55 UTCJul 15, 04:00 UTC5h 5m
2026-07-14 ASA883 - Jul 14, 15:25 UTCJul 14, 20:40 UTC5h 15m
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

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 Jul 26, 19:55 UTC.
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 ASA870, ASA869, ASA880, ASA879, ASA931.