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sensors Mode-S transponder

A479B2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N388HA · AIRBUS A-330-200 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A479B2
Octal
51074662
Decimal
10,779,058
Country
US
Tail
N388HA
Type
A332
No current signal · last broadcast Jul 26, 18:55 UTC
Flights observed
232
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 18:55 UTC

Last known position

Most recent position reported by Mode-S A479B2.

Country allocation

The ICAO 24-bit address A479B2 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
ASA819 Alaska Airlines 14 2026-06-07
ASA835 - 11 2026-07-18
ASA832 - 9 2026-07-09
ASA836 - 8 2026-07-17
ASA817 Alaska Airlines 8 2026-07-19
ASA830 - 7 2026-07-13
ASA829 - 7 2026-07-08
ASA820 Alaska Airlines 7 2026-06-07
ASA813 Alaska Airlines 7 2026-07-26
ASA809 - 7 2026-07-07
ASA900 - 6 2026-07-20
ASA864 Alaska Airlines 6 2026-07-17
ASA850 - 6 2026-07-02
ASA821 - 6 2026-07-16
ASA814 Alaska Airlines 6 2026-07-25
ASA805 Alaska Airlines 6 2026-07-20
ASA802 Alaska Airlines 6 2026-05-28
ASA863 - 5 2026-07-17
ASA849 - 5 2026-07-02
ASA831 - 5 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASA813 LAX → OGG Jul 26, 18:05 UTCJul 26, 18:55 UTC50m
2026-07-25 ASA814 SEA → SFO Jul 25, 23:40 UTCJul 26, 04:25 UTC4h 45m
2026-07-25 ASA852 SFO → HNL Jul 25, 20:40 UTCJul 25, 21:05 UTC25m
2026-07-25 ASA852 SFO → HNL Jul 25, 11:15 UTCJul 25, 12:05 UTC50m
2026-07-25 ASA851 LAX → PDX Jul 25, 05:30 UTCJul 25, 08:55 UTC3h 25m
2026-07-24 ASA851 LAX → PDX Jul 24, 22:20 UTCJul 24, 22:30 UTC10m
2026-07-24 ASA899 SAN → KOA Jul 24, 02:30 UTCJul 24, 02:40 UTC10m
2026-07-23 ASA899 SAN → KOA Jul 23, 21:10 UTCJul 23, 22:10 UTC1h 0m
2026-07-23 ASA824 HNL → SEA Jul 23, 09:35 UTCJul 23, 18:35 UTC9h 0m
2026-07-22 ASA823 LAX → NAS Jul 22, 21:10 UTCJul 23, 06:40 UTC9h 30m
2026-07-22 ASA930 PDX → SEA Jul 22, 03:10 UTCJul 22, 03:55 UTC45m
2026-07-21 ASA933 ABQ → SEA Jul 21, 21:00 UTCJul 21, 21:15 UTC15m
2026-07-21 ASA933 ABQ → SEA Jul 21, 16:05 UTCJul 21, 16:30 UTC25m
2026-07-20 ASA934 SEA → EUG Jul 20, 17:45 UTCJul 21, 06:05 UTC12h 20m
2026-07-20 ASA900 - Jul 20, 14:30 UTCJul 20, 15:20 UTC50m
2026-07-20 ASA900 - Jul 20, 10:20 UTCJul 20, 10:35 UTC15m
2026-07-20 ASA805 SEA → OGG Jul 20, 01:35 UTCJul 20, 07:35 UTC6h 0m
2026-07-19 ASA806 - Jul 19, 18:20 UTCJul 19, 23:30 UTC5h 10m
2026-07-19 ASA817 LAX → HNL Jul 19, 09:05 UTCJul 19, 15:05 UTC6h 0m
2026-07-18 ASA876 HNL → SFO Jul 18, 23:55 UTCJul 19, 05:05 UTC5h 10m
2026-07-18 ASA835 - Jul 18, 15:20 UTCJul 18, 21:35 UTC6h 15m
2026-07-17 ASA836 - Jul 17, 21:30 UTCJul 18, 02:55 UTC5h 26m
2026-07-17 ASA864 OGG → SFO Jul 17, 11:30 UTCJul 17, 18:50 UTC7h 20m
2026-07-17 ASA863 - Jul 17, 00:04 UTCJul 17, 08:10 UTC8h 5m
2026-07-16 ASA821 - Jul 16, 20:49 UTCJul 16, 21:00 UTC10m
2026-07-16 ASA821 - Jul 16, 15:35 UTCJul 16, 16:25 UTC50m
2026-07-15 ASA930 - Jul 15, 15:50 UTCJul 16, 04:10 UTC12h 20m
2026-07-15 ASA934 - Jul 15, 05:10 UTCJul 15, 05:50 UTC40m
2026-07-14 ASA929 - Jul 14, 17:35 UTCJul 14, 18:40 UTC1h 5m
2026-07-14 ASA900 - Jul 14, 14:20 UTCJul 14, 15:05 UTC45m
2026-07-14 ASA900 - Jul 14, 09:55 UTCJul 14, 10:05 UTC10m
2026-07-13 ASA830 - Jul 13, 02:45 UTCJul 13, 03:01 UTC15m
2026-07-13 ASA830 - Jul 13, 01:30 UTCJul 13, 01:40 UTC10m
2026-07-12 ASA807 - Jul 12, 23:00 UTCJul 12, 23:10 UTC10m
2026-07-12 ASA807 - Jul 12, 17:30 UTCJul 12, 18:55 UTC1h 25m
2026-07-12 ASA808 - Jul 12, 09:40 UTCJul 12, 14:55 UTC5h 15m
2026-07-12 ASA805 LAS → HNL Jul 12, 02:10 UTCJul 12, 07:50 UTC5h 40m
2026-07-11 ASA806 - Jul 11, 18:50 UTCJul 11, 23:55 UTC5h 5m
2026-07-11 ASA865 - Jul 11, 03:10 UTCJul 11, 16:05 UTC12h 55m
2026-07-10 ASA813 - Jul 10, 23:00 UTCJul 10, 23:10 UTC10m
2026-07-10 ASA813 - Jul 10, 17:45 UTCJul 10, 18:40 UTC55m
2026-07-09 ASA814 - Jul 9, 22:45 UTCJul 10, 03:45 UTC5h 0m
2026-07-09 ASA832 - Jul 9, 19:35 UTCJul 9, 20:00 UTC25m
2026-07-09 ASA832 - Jul 9, 12:55 UTCJul 9, 13:40 UTC45m
2026-07-09 ASA831 - Jul 9, 02:15 UTCJul 9, 10:35 UTC8h 20m
2026-07-08 ASA829 - Jul 8, 13:15 UTCJul 8, 23:30 UTC10h 15m
2026-07-08 ASA830 - Jul 8, 01:35 UTCJul 8, 10:50 UTC9h 15m
2026-07-07 ASA807 - Jul 7, 22:45 UTCJul 7, 23:05 UTC20m
2026-07-07 ASA807 - Jul 7, 17:25 UTCJul 7, 18:45 UTC1h 20m
2026-07-07 ASA808 - Jul 7, 13:45 UTCJul 7, 14:45 UTC1h 0m

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 N388HA page for operator, model, and routing details .

Mode-S A479B2 frequently asked

What is Mode-S code A479B2?
A479B2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N388HA.
Where is Mode-S A479B2 registered?
Mode-S code A479B2 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 A479B2 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A479B2, octal 51074662, decimal 10,779,058.
What flights does A479B2 operate?
Mode-S A479B2 has broadcast 20 distinct callsigns, including ASA819, ASA835, ASA832, ASA836, ASA817.