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sensors Mode-S transponder

A1D07C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N216HA · AIRBUS A-321neo · operated by HAWAIIAN AIRLINES INC

Hex
A1D07C
Octal
50350174
Decimal
10,604,668
Country
US
Tail
N216HA
Type
A21N
Broadcasting now · callsign ASA9285 · 31,000 ft
Flights observed
262
Distinct callsigns
20
Country
US
Last broadcast
33m ago

Current position

A1D07C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A1D07C 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 - 22 2026-07-03
ASA869 - 14 2026-06-29
ASA971 - 11 2026-07-03
ASA967 Alaska Airlines 8 2026-06-10
ASA964 Alaska Airlines 8 2026-06-11
ASA924 - 8 2026-07-11
ASA920 Alaska Airlines 8 2026-07-07
ASA965 - 7 2026-07-06
ASA923 - 7 2026-07-11
ASA888 Alaska Airlines 7 2026-05-27
ASA847 Alaska Airlines 7 2026-05-12
ASA968 Alaska Airlines 6 2026-06-11
ASA963 Alaska Airlines 6 2026-06-11
ASA879 Alaska Airlines 6 2026-07-02
ASA932 - 5 2026-07-05
ASA931 - 5 2026-07-05
ASA867 Alaska Airlines 5 2026-05-26
ASA972 Alaska Airlines 4 2026-06-09
ASA960 - 4 2026-07-06
ASA921 - 4 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ASA9285 - Jul 14, 04:45 UTCJul 14, 05:00 UTC15m
2026-07-13 ASA839 - Jul 13, 01:05 UTCJul 13, 02:10 UTC1h 5m
2026-07-12 ASA839 - Jul 12, 20:30 UTCJul 12, 20:50 UTC20m
2026-07-12 ASA843 SFO → HNL Jul 12, 02:55 UTCJul 12, 07:40 UTC4h 45m
2026-07-11 ASA923 OAK → SFO Jul 11, 14:10 UTCJul 12, 01:20 UTC11h 10m
2026-07-11 ASA924 - Jul 11, 03:15 UTCJul 11, 03:50 UTC35m
2026-07-10 ASA979 FAT → SEA Jul 10, 16:45 UTCJul 10, 17:20 UTC35m
2026-07-10 ASA842 - Jul 10, 13:50 UTCJul 10, 14:25 UTC35m
2026-07-10 ASA842 - Jul 10, 09:45 UTCJul 10, 10:05 UTC20m
2026-07-10 ASA843 - Jul 10, 07:50 UTCJul 10, 08:10 UTC20m
2026-07-10 ASA843 - Jul 10, 03:05 UTCJul 10, 03:35 UTC30m
2026-07-10 ASA978 SEA → FAT Jul 10, 00:25 UTCJul 10, 01:10 UTC45m
2026-07-09 ASA953 - Jul 9, 14:05 UTCJul 9, 14:55 UTC50m
2026-07-09 ASA956 PDX → SEA Jul 9, 01:25 UTCJul 9, 02:05 UTC40m
2026-07-08 ASA956 PDX → SEA Jul 8, 21:20 UTCJul 8, 21:30 UTC10m
2026-07-08 ASA955 SJC → LAX Jul 8, 14:10 UTCJul 8, 19:20 UTC5h 10m
2026-07-08 ASA921 - Jul 8, 03:20 UTCJul 8, 04:00 UTC40m
2026-07-07 ASA921 - Jul 7, 23:05 UTCJul 7, 23:20 UTC15m
2026-07-07 ASA825 - Jul 7, 21:15 UTCJul 7, 21:30 UTC15m
2026-07-07 ASA825 - Jul 7, 16:30 UTCJul 7, 17:25 UTC55m
2026-07-07 ASA920 RDU → SEA Jul 7, 01:55 UTCJul 7, 02:30 UTC35m
2026-07-06 ASA920 RDU → SEA Jul 6, 21:45 UTCJul 6, 21:55 UTC10m
2026-07-06 ASA965 - Jul 6, 19:40 UTCJul 6, 19:50 UTC10m
2026-07-06 ASA965 - Jul 6, 14:50 UTCJul 6, 15:30 UTC40m
2026-07-06 ASA960 - Jul 6, 01:30 UTCJul 6, 02:15 UTC45m
2026-07-05 ASA931 - Jul 5, 14:20 UTCJul 5, 15:30 UTC1h 10m
2026-07-05 ASA932 - Jul 5, 00:45 UTCJul 5, 01:40 UTC55m
2026-07-04 ASA953 - Jul 4, 14:15 UTCJul 4, 14:50 UTC35m
2026-07-04 ASA954 - Jul 4, 02:15 UTCJul 4, 02:55 UTC40m
2026-07-03 ASA971 - Jul 3, 20:35 UTCJul 3, 20:45 UTC10m
2026-07-03 ASA971 - Jul 3, 15:25 UTCJul 3, 16:00 UTC35m
2026-07-03 ASA870 - Jul 3, 03:00 UTCJul 3, 03:35 UTC35m
2026-07-02 ASA870 - Jul 2, 22:45 UTCJul 2, 23:05 UTC20m
2026-07-02 ASA879 SFO → OGG Jul 2, 20:05 UTCJul 2, 20:25 UTC20m
2026-07-02 ASA879 SFO → OGG Jul 2, 15:00 UTCJul 2, 15:50 UTC50m
2026-07-02 ASA884 - Jul 2, 02:50 UTCJul 2, 03:45 UTC55m
2026-07-01 ASA884 - Jul 1, 22:40 UTCJul 1, 22:50 UTC10m
2026-07-01 ASA883 - Jul 1, 15:40 UTCJul 1, 20:50 UTC5h 10m
2026-07-01 ASA9920 - Jul 1, 05:00 UTCJul 1, 10:15 UTC5h 15m
2026-06-30 ASA855 SEA → SJC Jun 30, 10:15 UTCJun 30, 10:25 UTC10m
2026-06-30 ASA855 SEA → SJC Jun 30, 05:05 UTCJun 30, 05:50 UTC45m
2026-06-30 ASA839 SEA → LIH Jun 30, 01:55 UTCJun 30, 02:50 UTC55m
2026-06-29 ASA839 SEA → LIH Jun 29, 21:24 UTCJun 29, 21:39 UTC15m
2026-06-29 ASA869 - Jun 29, 14:09 UTCJun 29, 19:44 UTC5h 35m
2026-06-29 ASA870 - Jun 29, 03:25 UTCJun 29, 04:00 UTC35m
2026-06-28 ASA870 - Jun 28, 22:59 UTCJun 28, 23:20 UTC20m
2026-06-28 ASA879 SFO → OGG Jun 28, 20:14 UTCJun 28, 20:39 UTC25m
2026-06-28 ASA879 SFO → OGG Jun 28, 15:14 UTCJun 28, 16:00 UTC45m
2026-06-28 ASA880 - Jun 28, 12:19 UTCJun 28, 13:10 UTC50m
2026-06-28 ASA880 - Jun 28, 08:09 UTCJun 28, 08:19 UTC10m

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 N216HA page for operator, model, and routing details .

Mode-S A1D07C frequently asked

What is Mode-S code A1D07C?
A1D07C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N216HA.
Where is Mode-S A1D07C registered?
Mode-S code A1D07C 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 A1D07C broadcasting right now?
Yes. Mode-S A1D07C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1D07C, octal 50350174, decimal 10,604,668.
What flights does A1D07C operate?
Mode-S A1D07C has broadcast 20 distinct callsigns, including ASA870, ASA869, ASA971, ASA967, ASA964.