Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A22643

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N238AL · BEECH 99 Airliner · operated by ALPINE AVIATION INC

Hex
A22643
Octal
50423103
Decimal
10,626,627
Country
US
Tail
N238AL
Type
BE99
No current signal · last broadcast 1h ago
Flights observed
53
Distinct callsigns
4
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A22643.

Country allocation

The ICAO 24-bit address A22643 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 4 distinct

Callsign Airline Flights Last seen
AIP1844 Alpine Air Express 27 2026-05-29
AIP1843 Alpine Air Express 23 2026-05-30
AIP1822 Alpine Air Express 2 2026-04-25
AIP99 Alpine Air Express 1 2026-04-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AIP1843 PUC → SLC May 30, 00:45 UTCMay 30, 01:10 UTC25m
2026-05-29 AIP1844 SLC → VEL May 29, 13:25 UTCMay 29, 13:45 UTC20m
2026-05-28 AIP1843 PUC → SLC May 28, 01:20 UTCMay 28, 01:50 UTC30m
2026-05-27 AIP1844 SLC → VEL May 27, 13:20 UTCMay 27, 13:30 UTC10m
2026-05-26 AIP1844 SLC → VEL May 26, 13:04 UTCMay 26, 13:19 UTC15m
2026-05-23 AIP1843 PUC → SLC May 23, 00:55 UTCMay 23, 01:15 UTC20m
2026-05-22 AIP1844 SLC → VEL May 22, 13:25 UTCMay 22, 13:40 UTC15m
2026-05-22 AIP1843 PUC → SLC May 22, 00:50 UTCMay 22, 01:15 UTC25m
2026-05-21 AIP1844 SLC → VEL May 21, 13:35 UTCMay 21, 13:50 UTC15m
2026-05-21 AIP1843 PUC → SLC May 21, 01:05 UTCMay 21, 01:25 UTC20m
2026-05-20 AIP1844 SLC → VEL May 20, 13:35 UTCMay 20, 13:50 UTC15m
2026-05-20 AIP1843 PUC → SLC May 20, 00:55 UTCMay 20, 01:15 UTC20m
2026-05-19 AIP1844 SLC → VEL May 19, 13:45 UTCMay 19, 14:00 UTC15m
2026-05-19 AIP1843 PUC → SLC May 19, 00:45 UTCMay 19, 01:05 UTC20m
2026-05-18 AIP1844 SLC → VEL May 18, 13:05 UTCMay 18, 13:20 UTC15m
2026-05-16 AIP1843 PUC → SLC May 16, 01:05 UTCMay 16, 01:35 UTC30m
2026-05-15 AIP1844 SLC → VEL May 15, 13:10 UTCMay 15, 13:25 UTC15m
2026-05-13 AIP1843 PUC → SLC May 13, 00:45 UTCMay 13, 01:05 UTC20m
2026-05-12 AIP1844 SLC → VEL May 12, 13:40 UTCMay 12, 13:55 UTC15m
2026-05-11 AIP1844 SLC → VEL May 11, 13:05 UTCMay 11, 13:15 UTC10m
2026-05-09 AIP1843 PUC → SLC May 9, 00:50 UTCMay 9, 01:10 UTC20m
2026-05-08 AIP1844 SLC → VEL May 8, 13:25 UTCMay 8, 13:40 UTC15m
2026-05-08 AIP1843 PUC → SLC May 8, 00:29 UTCMay 8, 00:54 UTC25m
2026-05-07 AIP1844 SLC → VEL May 7, 13:35 UTCMay 7, 13:50 UTC15m
2026-05-07 AIP1843 PUC → SLC May 7, 00:45 UTCMay 7, 01:10 UTC25m
2026-05-06 AIP1844 SLC → VEL May 6, 13:45 UTCMay 6, 13:55 UTC10m
2026-05-06 AIP1843 PUC → SLC May 6, 00:55 UTCMay 6, 01:20 UTC25m
2026-05-05 AIP1844 SLC → VEL May 5, 14:05 UTCMay 5, 14:30 UTC25m
2026-05-05 AIP1843 PUC → SLC May 5, 00:45 UTCMay 5, 01:15 UTC30m
2026-05-04 AIP1844 SLC → VEL May 4, 13:05 UTCMay 4, 13:20 UTC15m
2026-05-02 AIP1843 PUC → SLC May 2, 00:50 UTCMay 2, 01:10 UTC20m
2026-05-01 AIP1844 SLC → VEL May 1, 13:45 UTCMay 1, 14:00 UTC15m
2026-05-01 AIP1843 PUC → SLC May 1, 00:55 UTCMay 1, 01:15 UTC20m
2026-04-30 AIP1844 SLC → VEL Apr 30, 13:50 UTCApr 30, 14:05 UTC15m
2026-04-30 AIP1843 PUC → SLC Apr 30, 00:50 UTCApr 30, 01:10 UTC20m
2026-04-29 AIP1844 SLC → VEL Apr 29, 13:40 UTCApr 29, 13:50 UTC10m
2026-04-28 AIP1843 PUC → SLC Apr 28, 01:05 UTCApr 28, 01:45 UTC40m
2026-04-27 AIP1844 SLC → VEL Apr 27, 13:45 UTCApr 27, 13:55 UTC10m
2026-04-25 AIP1822 SLC → IDA Apr 25, 15:40 UTCApr 25, 16:15 UTC35m
2026-04-25 AIP1822 SLC → IDA Apr 25, 13:40 UTCApr 25, 14:15 UTC35m
2026-04-25 AIP1843 PUC → SLC Apr 25, 00:45 UTCApr 25, 01:05 UTC20m
2026-04-24 AIP1844 SLC → VEL Apr 24, 13:25 UTCApr 24, 13:40 UTC15m
2026-04-24 AIP1843 PUC → SLC Apr 24, 00:35 UTCApr 24, 01:05 UTC30m
2026-04-23 AIP1844 SLC → VEL Apr 23, 13:55 UTCApr 23, 14:10 UTC15m
2026-04-23 AIP1843 PUC → SLC Apr 23, 01:40 UTCApr 23, 02:05 UTC25m
2026-04-22 AIP1844 SLC → VEL Apr 22, 14:40 UTCApr 22, 15:05 UTC25m
2026-04-21 AIP99 VEL → RKS Apr 21, 22:25 UTCApr 21, 22:55 UTC30m
2026-04-17 AIP1844 SLC → VEL Apr 17, 14:05 UTCApr 17, 14:20 UTC15m
2026-04-17 AIP1843 PUC → SLC Apr 17, 00:44 UTCApr 17, 01:10 UTC25m
2026-04-16 AIP1844 SLC → VEL Apr 16, 13:40 UTCApr 16, 13:54 UTC15m

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 N238AL page for operator, model, and routing details .

Mode-S A22643 frequently asked

What is Mode-S code A22643?
A22643 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N238AL.
Where is Mode-S A22643 registered?
Mode-S code A22643 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 A22643 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A22643, octal 50423103, decimal 10,626,627.
What flights does A22643 operate?
Mode-S A22643 has broadcast 4 distinct callsigns, including AIP1844, AIP1843, AIP1822, AIP99.