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sensors Mode-S transponder

A20930

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N230HA · AIRBUS A-321neo · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A20930
Octal
50404460
Decimal
10,619,184
Country
US
Tail
N230HA
Type
A21N
No current signal · last broadcast 7h ago
Flights observed
273
Distinct callsigns
20
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S A20930.

Country allocation

The ICAO 24-bit address A20930 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
ASA968 - 9 2026-07-11
ASA963 - 9 2026-07-11
ASA868 Alaska Airlines 9 2026-06-02
ASA967 - 8 2026-07-10
ASA964 - 8 2026-07-10
ASA867 Alaska Airlines 8 2026-06-02
ASA966 Alaska Airlines 7 2026-05-25
ASA965 Alaska Airlines 6 2026-05-24
ASA924 - 6 2026-07-14
ASA922 - 6 2026-07-07
ASA920 Alaska Airlines 6 2026-07-08
ASA892 Alaska Airlines 6 2026-06-19
ASA825 - 6 2026-07-05
ASA971 Alaska Airlines 5 2026-06-17
ASA923 - 5 2026-07-12
ASA878 Alaska Airlines 5 2026-06-03
ASA870 - 5 2026-06-20
ASA843 - 5 2026-07-13
ASA978 - 4 2026-07-13
ASA921 - 4 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ASA924 - Jul 14, 03:15 UTCJul 14, 03:55 UTC40m
2026-07-13 ASA979 - Jul 13, 16:40 UTCJul 13, 17:15 UTC35m
2026-07-13 ASA842 - Jul 13, 13:40 UTCJul 13, 14:30 UTC50m
2026-07-13 ASA842 - Jul 13, 09:40 UTCJul 13, 10:00 UTC20m
2026-07-13 ASA843 SFO → HNL Jul 13, 03:01 UTCJul 13, 07:55 UTC4h 55m
2026-07-13 ASA978 - Jul 13, 00:30 UTCJul 13, 01:25 UTC55m
2026-07-12 ASA923 - Jul 12, 14:15 UTCJul 12, 14:50 UTC35m
2026-07-11 ASA968 - Jul 11, 23:50 UTCJul 12, 04:40 UTC4h 50m
2026-07-11 ASA963 - Jul 11, 16:25 UTCJul 11, 21:40 UTC5h 15m
2026-07-10 ASA964 - Jul 10, 22:00 UTCJul 11, 02:55 UTC4h 55m
2026-07-10 ASA967 - Jul 10, 15:00 UTCJul 10, 20:05 UTC5h 5m
2026-07-09 ASA968 - Jul 9, 23:30 UTCJul 10, 04:10 UTC4h 40m
2026-07-09 ASA963 - Jul 9, 16:15 UTCJul 9, 21:30 UTC5h 15m
2026-07-09 ASA845 SEA → GEG Jul 9, 04:45 UTCJul 9, 05:25 UTC40m
2026-07-08 ASA844 - Jul 8, 18:10 UTCJul 8, 18:40 UTC30m
2026-07-08 ASA920 RDU → SEA Jul 8, 01:40 UTCJul 8, 02:15 UTC35m
2026-07-07 ASA920 RDU → SEA Jul 7, 21:20 UTCJul 7, 21:30 UTC10m
2026-07-07 ASA922 - Jul 7, 19:25 UTCJul 7, 19:40 UTC15m
2026-07-07 ASA922 - Jul 7, 14:45 UTCJul 7, 15:40 UTC55m
2026-07-06 ASA956 PDX → SEA Jul 6, 21:05 UTCJul 7, 01:50 UTC4h 45m
2026-07-06 ASA955 SJC → LAX Jul 6, 14:10 UTCJul 6, 14:45 UTC35m
2026-07-06 ASA921 - Jul 6, 03:35 UTCJul 6, 04:10 UTC35m
2026-07-05 ASA921 - Jul 5, 23:35 UTCJul 5, 23:50 UTC15m
2026-07-05 ASA825 - Jul 5, 21:55 UTCJul 5, 22:10 UTC15m
2026-07-05 ASA825 - Jul 5, 16:45 UTCJul 5, 17:15 UTC30m
2026-07-05 ASA845 SEA → GEG Jul 5, 03:50 UTCJul 5, 04:30 UTC40m
2026-07-04 ASA844 - Jul 4, 17:20 UTCJul 4, 18:00 UTC40m
2026-07-04 ASA853 - Jul 4, 14:40 UTCJul 4, 15:20 UTC40m
2026-07-04 ASA853 - Jul 4, 10:30 UTCJul 4, 10:50 UTC20m
2026-07-04 ASA843 - Jul 4, 08:35 UTCJul 4, 08:50 UTC15m
2026-07-04 ASA843 - Jul 4, 03:45 UTCJul 4, 04:10 UTC25m
2026-07-04 ASA978 SEA → FAT Jul 4, 01:15 UTCJul 4, 01:50 UTC35m
2026-07-03 ASA923 - Jul 3, 14:10 UTCJul 3, 14:50 UTC40m
2026-07-03 ASA968 - Jul 3, 03:25 UTCJul 3, 04:20 UTC55m
2026-07-02 ASA963 - Jul 2, 16:30 UTCJul 2, 21:45 UTC5h 15m
2026-07-01 ASA964 - Jul 1, 21:55 UTCJul 2, 02:45 UTC4h 50m
2026-07-01 ASA9916 SMF → OGG Jul 1, 19:55 UTCJul 1, 20:05 UTC10m
2026-07-01 ASA843 - Jul 1, 07:35 UTCJul 1, 07:55 UTC20m
2026-07-01 ASA843 - Jul 1, 02:55 UTCJul 1, 03:25 UTC30m
2026-07-01 ASA978 SEA → FAT Jul 1, 00:35 UTCJul 1, 01:10 UTC35m
2026-06-30 ASA923 - Jun 30, 14:10 UTCJun 30, 14:40 UTC30m
2026-06-30 ASA968 - Jun 30, 04:05 UTCJun 30, 04:45 UTC40m
2026-06-29 ASA963 - Jun 29, 17:10 UTCJun 29, 22:19 UTC5h 10m
2026-06-29 ASA964 - Jun 29, 02:14 UTCJun 29, 02:54 UTC40m
2026-06-28 ASA967 - Jun 28, 14:59 UTCJun 28, 19:40 UTC4h 40m
2026-06-28 ASA968 - Jun 28, 03:59 UTCJun 28, 04:40 UTC40m
2026-06-27 ASA963 - Jun 27, 16:20 UTCJun 27, 21:15 UTC4h 55m
2026-06-26 ASA964 - Jun 26, 22:05 UTCJun 27, 03:20 UTC5h 15m
2026-06-26 ASA967 - Jun 26, 14:55 UTCJun 26, 19:50 UTC4h 55m
2026-06-26 ASA968 - Jun 26, 03:34 UTCJun 26, 04:20 UTC45m

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 N230HA page for operator, model, and routing details .

Mode-S A20930 frequently asked

What is Mode-S code A20930?
A20930 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N230HA.
Where is Mode-S A20930 registered?
Mode-S code A20930 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 A20930 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 A20930, octal 50404460, decimal 10,619,184.
What flights does A20930 operate?
Mode-S A20930 has broadcast 20 distinct callsigns, including ASA968, ASA963, ASA868, ASA967, ASA964.