Apparatus

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sensors Mode-S transponder

A1F7FB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N226HA · AIRBUS A-321neo · operated by HAWAIIAN AIRLINES INC

Hex
A1F7FB
Octal
50373773
Decimal
10,614,779
Country
US
Tail
N226HA
Type
A21N
No current signal · last broadcast Jul 26, 17:35 UTC
Flights observed
276
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 17:35 UTC

Last known position

Most recent position reported by Mode-S A1F7FB.

Country allocation

The ICAO 24-bit address A1F7FB 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
ASA920 Alaska Airlines 10 2026-07-20
ASA954 - 9 2026-07-11
ASA932 - 9 2026-07-08
ASA931 - 9 2026-07-08
ASA870 - 9 2026-07-06
ASA971 - 8 2026-07-10
ASA922 - 8 2026-07-19
ASA848 Alaska Airlines 8 2026-06-10
ASA844 Alaska Airlines 8 2026-07-23
ASA854 Alaska Airlines 7 2026-07-20
ASA827 Alaska Airlines 7 2026-04-20
ASA825 - 7 2026-07-17
ASA972 - 6 2026-07-10
ASA953 - 6 2026-07-07
ASA923 Alaska Airlines 6 2026-07-25
ASA880 - 6 2026-07-14
ASA868 Alaska Airlines 6 2026-05-31
ASA966 - 5 2026-06-27
ASA965 - 5 2026-06-27
ASA959 - 5 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ASA979 FAT → SEA Jul 26, 16:40 UTCJul 26, 17:35 UTC55m
2026-07-26 ASA842 HNL → SFO Jul 26, 10:15 UTCJul 26, 14:35 UTC4h 20m
2026-07-26 ASA843 SFO → LAX Jul 26, 03:15 UTCJul 26, 08:25 UTC5h 11m
2026-07-26 ASA978 SEA → FAT Jul 26, 00:10 UTCJul 26, 01:10 UTC1h 0m
2026-07-25 ASA923 OAK → OGG Jul 25, 19:05 UTCJul 25, 19:15 UTC10m
2026-07-25 ASA923 OAK → OGG Jul 25, 14:05 UTCJul 25, 14:50 UTC45m
2026-07-25 ASA968 LIH → OAK Jul 25, 00:00 UTCJul 25, 04:40 UTC4h 40m
2026-07-24 ASA963 GEG → SEA Jul 24, 16:10 UTCJul 24, 21:20 UTC5h 10m
2026-07-24 ASA845 SEA → GEG Jul 24, 03:50 UTCJul 24, 04:40 UTC50m
2026-07-23 ASA844 LAX → PDX Jul 23, 22:05 UTCJul 23, 22:15 UTC10m
2026-07-23 ASA844 LAX → PDX Jul 23, 17:15 UTCJul 23, 17:40 UTC25m
2026-07-23 ASA853 - Jul 23, 10:15 UTCJul 23, 15:00 UTC4h 45m
2026-07-20 ASA854 SJC → SEA Jul 20, 04:55 UTCJul 20, 10:20 UTC5h 25m
2026-07-20 ASA920 RDU → SEA Jul 20, 01:20 UTCJul 20, 02:55 UTC1h 35m
2026-07-19 ASA920 RDU → SEA Jul 19, 21:35 UTCJul 19, 21:55 UTC20m
2026-07-19 ASA922 - Jul 19, 19:50 UTCJul 19, 20:00 UTC10m
2026-07-19 ASA922 - Jul 19, 15:00 UTCJul 19, 15:45 UTC45m
2026-07-18 ASA956 - Jul 18, 21:15 UTCJul 19, 01:50 UTC4h 35m
2026-07-18 ASA955 - Jul 18, 14:20 UTCJul 18, 19:05 UTC4h 45m
2026-07-18 ASA921 PDX → FLL Jul 18, 03:15 UTCJul 18, 04:00 UTC45m
2026-07-17 ASA921 PDX → FLL Jul 17, 23:20 UTCJul 17, 23:35 UTC15m
2026-07-17 ASA825 - Jul 17, 21:25 UTCJul 17, 21:39 UTC15m
2026-07-17 ASA825 - Jul 17, 16:29 UTCJul 17, 16:59 UTC30m
2026-07-17 ASA845 - Jul 17, 04:54 UTCJul 17, 05:39 UTC45m
2026-07-16 ASA844 - Jul 16, 18:29 UTCJul 16, 18:59 UTC30m
2026-07-16 ASA853 - Jul 16, 14:29 UTCJul 16, 15:05 UTC35m
2026-07-16 ASA853 - Jul 16, 10:10 UTCJul 16, 10:29 UTC20m
2026-07-16 ASA894 - Jul 16, 00:50 UTCJul 16, 06:20 UTC5h 30m
2026-07-15 ASA892 - Jul 15, 18:05 UTCJul 15, 23:00 UTC4h 55m
2026-07-14 ASA879 - Jul 14, 15:25 UTCJul 14, 20:45 UTC5h 20m
2026-07-14 ASA880 - Jul 14, 12:30 UTCJul 14, 13:15 UTC45m
2026-07-14 ASA880 - Jul 14, 08:10 UTCJul 14, 08:25 UTC15m
2026-07-14 ASA894 - Jul 14, 00:55 UTCJul 14, 06:30 UTC5h 35m
2026-07-13 ASA892 - Jul 13, 22:05 UTCJul 13, 22:50 UTC45m
2026-07-13 ASA892 - Jul 13, 17:45 UTCJul 13, 18:00 UTC15m
2026-07-13 ASA854 - Jul 13, 04:25 UTCJul 13, 09:45 UTC5h 20m
2026-07-13 ASA920 - Jul 13, 01:50 UTCJul 13, 02:30 UTC40m
2026-07-12 ASA920 - Jul 12, 21:25 UTCJul 12, 21:35 UTC10m
2026-07-12 ASA922 - Jul 12, 19:30 UTCJul 12, 19:45 UTC15m
2026-07-12 ASA922 - Jul 12, 14:50 UTCJul 12, 15:30 UTC40m
2026-07-11 ASA956 NGF → SJC Jul 11, 23:05 UTCJul 12, 03:45 UTC4h 40m
2026-07-11 ASA955 SJC → LAX Jul 11, 16:00 UTCJul 11, 20:45 UTC4h 45m
2026-07-11 ASA954 - Jul 11, 02:10 UTCJul 11, 02:50 UTC40m
2026-07-10 ASA971 - Jul 10, 15:20 UTCJul 10, 15:55 UTC35m
2026-07-10 ASA972 - Jul 10, 02:30 UTCJul 10, 03:10 UTC40m
2026-07-09 ASA959 - Jul 9, 15:45 UTCJul 9, 16:20 UTC35m
2026-07-09 ASA960 - Jul 9, 01:30 UTCJul 9, 02:20 UTC50m
2026-07-08 ASA931 - Jul 8, 14:25 UTCJul 8, 15:30 UTC1h 5m
2026-07-08 ASA932 - Jul 8, 01:00 UTCJul 8, 02:00 UTC1h 0m
2026-07-07 ASA953 - Jul 7, 14:10 UTCJul 7, 14:50 UTC40m

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 N226HA page for operator, model, and routing details .

Mode-S A1F7FB frequently asked

What is Mode-S code A1F7FB?
A1F7FB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N226HA.
Where is Mode-S A1F7FB registered?
Mode-S code A1F7FB 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 A1F7FB broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1F7FB, octal 50373773, decimal 10,614,779.
What flights does A1F7FB operate?
Mode-S A1F7FB has broadcast 20 distinct callsigns, including ASA920, ASA954, ASA932, ASA931, ASA870.