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sensors Mode-S transponder

A4347B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N370HA · AIRBUS A-330-200 · operated by HAWAIIAN AIRLINES INC

Hex
A4347B
Octal
51032173
Decimal
10,761,339
Country
US
Tail
N370HA
Type
A332
No current signal · last broadcast 48m ago
Flights observed
237
Distinct callsigns
20
Country
US
Last broadcast
48m ago

Last known position

Most recent position reported by Mode-S A4347B.

Country allocation

The ICAO 24-bit address A4347B 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
ASA821 - 14 2026-07-13
ASA819 - 10 2026-07-10
ASA930 - 9 2026-06-25
ASA849 - 9 2026-06-15
ASA815 - 9 2026-07-01
ASA802 - 9 2026-06-23
ASA801 - 9 2026-07-03
ASA811 - 8 2026-07-11
ASA929 - 7 2026-06-21
ASA850 Alaska Airlines 7 2026-06-15
ASA830 - 7 2026-07-07
ASA829 - 7 2026-07-07
ASA804 - 7 2026-07-03
ASA835 Alaska Airlines 6 2026-07-04
ASA832 - 6 2026-07-08
ASA822 - 6 2026-07-12
ASA807 - 6 2026-07-06
ASA803 Alaska Airlines 6 2026-06-12
ASA934 - 5 2026-06-22
ASA933 Alaska Airlines 5 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ASA814 - Jul 14, 04:20 UTCJul 14, 04:45 UTC25m
2026-07-14 ASA814 - Jul 14, 00:10 UTCJul 14, 00:30 UTC20m
2026-07-13 ASA821 - Jul 13, 21:10 UTCJul 13, 21:25 UTC15m
2026-07-13 ASA821 - Jul 13, 16:05 UTCJul 13, 17:00 UTC55m
2026-07-12 ASA822 - Jul 12, 23:50 UTCJul 13, 05:05 UTC5h 15m
2026-07-12 ASA821 - Jul 12, 20:35 UTCJul 12, 20:55 UTC20m
2026-07-12 ASA821 - Jul 12, 15:30 UTCJul 12, 16:10 UTC40m
2026-07-11 ASA822 - Jul 11, 23:10 UTCJul 12, 04:30 UTC5h 20m
2026-07-11 ASA811 - Jul 11, 20:30 UTCJul 11, 20:55 UTC25m
2026-07-11 ASA811 - Jul 11, 16:00 UTCJul 11, 16:30 UTC30m
2026-07-11 ASA812 - Jul 11, 02:35 UTCJul 11, 03:05 UTC30m
2026-07-10 ASA812 - Jul 10, 22:45 UTCJul 10, 23:05 UTC20m
2026-07-10 ASA819 - Jul 10, 20:00 UTCJul 10, 20:20 UTC20m
2026-07-10 ASA819 - Jul 10, 15:00 UTCJul 10, 15:40 UTC40m
2026-07-10 ASA820 - Jul 10, 00:20 UTCJul 10, 04:50 UTC4h 30m
2026-07-09 ASA9282 HNL → SEA Jul 9, 16:20 UTCJul 9, 16:35 UTC15m
2026-07-09 ASA9282 HNL → SEA Jul 9, 09:30 UTCJul 9, 10:10 UTC40m
2026-07-08 ASA832 HND → HND Jul 8, 12:35 UTCJul 8, 14:20 UTC1h 45m
2026-07-08 ASA831 - Jul 8, 02:20 UTCJul 8, 10:20 UTC8h 0m
2026-07-07 ASA829 - Jul 7, 23:10 UTCJul 7, 23:30 UTC20m
2026-07-07 ASA829 - Jul 7, 13:50 UTCJul 7, 19:35 UTC5h 45m
2026-07-07 ASA830 - Jul 7, 06:05 UTCJul 7, 11:25 UTC5h 20m
2026-07-07 ASA830 - Jul 7, 02:10 UTCJul 7, 02:25 UTC15m
2026-07-06 ASA807 - Jul 6, 23:15 UTCJul 6, 23:40 UTC25m
2026-07-06 ASA807 - Jul 6, 17:50 UTCJul 6, 19:15 UTC1h 25m
2026-07-06 ASA808 - Jul 6, 10:05 UTCJul 6, 15:05 UTC5h 0m
2026-07-06 ASA805 - Jul 6, 07:35 UTCJul 6, 07:55 UTC20m
2026-07-06 ASA805 - Jul 6, 02:05 UTCJul 6, 03:35 UTC1h 30m
2026-07-05 ASA806 - Jul 5, 18:10 UTCJul 5, 23:10 UTC5h 0m
2026-07-04 ASA835 SFO → PDX Jul 4, 15:25 UTCJul 4, 21:40 UTC6h 15m
2026-07-03 ASA836 ANC → OGG Jul 3, 21:30 UTCJul 4, 02:45 UTC5h 15m
2026-07-03 ASA801 - Jul 3, 14:20 UTCJul 3, 19:40 UTC5h 20m
2026-07-03 ASA804 - Jul 3, 07:05 UTCJul 3, 11:35 UTC4h 30m
2026-07-03 ASA829 - Jul 3, 00:50 UTCJul 3, 01:15 UTC25m
2026-07-02 ASA829 - Jul 2, 14:55 UTCJul 2, 20:25 UTC5h 30m
2026-07-02 ASA830 - Jul 2, 05:30 UTCJul 2, 10:40 UTC5h 10m
2026-07-01 ASA815 - Jul 1, 16:55 UTCJul 1, 22:45 UTC5h 50m
2026-06-30 ASA816 - Jun 30, 23:20 UTCJul 1, 04:15 UTC4h 55m
2026-06-30 ASA852 SFO → HNL Jun 30, 11:55 UTCJun 30, 21:10 UTC9h 15m
2026-06-30 ASA851 - Jun 30, 07:15 UTCJun 30, 09:05 UTC1h 50m
2026-06-29 ASA851 - Jun 29, 22:30 UTCJun 29, 22:49 UTC20m
2026-06-29 ASA801 - Jun 29, 14:19 UTCJun 29, 19:49 UTC5h 30m
2026-06-29 ASA804 - Jun 29, 07:05 UTCJun 29, 11:50 UTC4h 45m
2026-06-28 ASA829 - Jun 28, 13:29 UTCJun 28, 23:54 UTC10h 25m
2026-06-28 ASA830 - Jun 28, 01:34 UTCJun 28, 10:35 UTC9h 0m
2026-06-27 ASA807 - Jun 27, 17:14 UTCJun 27, 22:45 UTC5h 30m
2026-06-27 ASA808 - Jun 27, 09:34 UTCJun 27, 15:00 UTC5h 25m
2026-06-27 ASA805 - Jun 27, 02:04 UTCJun 27, 07:39 UTC5h 35m
2026-06-26 ASA806 - Jun 26, 18:20 UTCJun 26, 23:44 UTC5h 25m
2026-06-25 ASA821 SJC → OGG Jun 25, 20:34 UTCJun 25, 20:59 UTC25m

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 N370HA page for operator, model, and routing details .

Mode-S A4347B frequently asked

What is Mode-S code A4347B?
A4347B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N370HA.
Where is Mode-S A4347B registered?
Mode-S code A4347B 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 A4347B broadcasting right now?
No active broadcast right now. Last signal was 48m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4347B, octal 51032173, decimal 10,761,339.
What flights does A4347B operate?
Mode-S A4347B has broadcast 20 distinct callsigns, including ASA821, ASA819, ASA930, ASA849, ASA815.