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sensors Mode-S transponder

A555B7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N44290 · PIPER PA-28-140/150/160/180 · operated by FLY WITH US LLC

Hex
A555B7
Octal
51252667
Decimal
10,835,383
Country
US
Tail
N44290
Type
P28A
No current signal · last broadcast Jul 26, 19:30 UTC
Flights observed
164
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 19:30 UTC

Last known position

Most recent position reported by Mode-S A555B7.

Country allocation

The ICAO 24-bit address A555B7 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 1 distinct

Callsign Airline Flights Last seen
N44290 - 164 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N44290 - Jul 26, 18:20 UTCJul 26, 19:30 UTC1h 10m
2026-07-26 N44290 - Jul 26, 13:50 UTCJul 26, 15:30 UTC1h 40m
2026-07-25 N44290 - Jul 25, 20:40 UTCJul 25, 22:20 UTC1h 40m
2026-07-25 N44290 - Jul 25, 18:30 UTCJul 25, 19:05 UTC35m
2026-07-25 N44290 - Jul 25, 11:50 UTCJul 25, 13:30 UTC1h 40m
2026-07-24 N44290 - Jul 24, 21:45 UTCJul 24, 23:20 UTC1h 35m
2026-07-24 N44290 - Jul 24, 17:30 UTCJul 24, 18:15 UTC45m
2026-07-24 N44290 PNS → PNS Jul 24, 12:45 UTCJul 24, 13:20 UTC35m
2026-07-23 N44290 PNS → PNS Jul 23, 11:50 UTCJul 23, 13:40 UTC1h 50m
2026-07-20 N44290 - Jul 20, 15:05 UTCJul 20, 16:55 UTC1h 50m
2026-07-20 N44290 - Jul 20, 12:55 UTCJul 20, 13:20 UTC25m
2026-07-19 N44290 - Jul 19, 16:55 UTCJul 19, 17:50 UTC55m
2026-07-19 N44290 - Jul 19, 13:50 UTCJul 19, 15:25 UTC1h 35m
2026-07-17 N44290 - Jul 17, 22:05 UTCJul 17, 23:10 UTC1h 5m
2026-07-16 N44290 - Jul 16, 19:30 UTCJul 16, 20:45 UTC1h 15m
2026-07-16 N44290 - Jul 16, 14:20 UTCJul 16, 15:10 UTC50m
2026-07-15 N44290 - Jul 15, 23:30 UTCJul 16, 00:25 UTC55m
2026-07-15 N44290 - Jul 15, 23:10 UTCJul 15, 23:25 UTC15m
2026-07-15 N44290 - Jul 15, 17:15 UTCJul 15, 18:25 UTC1h 10m
2026-07-15 N44290 - Jul 15, 14:05 UTCJul 15, 14:35 UTC30m
2026-07-14 N44290 - Jul 14, 13:40 UTCJul 14, 13:50 UTC10m
2026-07-11 N44290 - Jul 11, 21:20 UTCJul 11, 22:40 UTC1h 20m
2026-07-10 N44290 - Jul 10, 14:50 UTCJul 10, 15:05 UTC15m
2026-07-09 N44290 PNS → PNS Jul 9, 20:10 UTCJul 9, 21:05 UTC55m
2026-07-09 N44290 - Jul 9, 14:30 UTCJul 9, 15:45 UTC1h 15m
2026-07-09 N44290 - Jul 9, 11:45 UTCJul 9, 12:30 UTC45m
2026-07-09 N44290 - Jul 9, 00:25 UTCJul 9, 01:00 UTC35m
2026-07-08 N44290 PNS → PNS Jul 8, 22:00 UTCJul 8, 23:20 UTC1h 20m
2026-07-08 N44290 - Jul 8, 18:30 UTCJul 8, 19:45 UTC1h 15m
2026-07-07 N44290 - Jul 7, 20:10 UTCJul 7, 21:55 UTC1h 45m
2026-07-07 N44290 - Jul 7, 15:15 UTCJul 7, 15:25 UTC10m
2026-07-07 N44290 - Jul 7, 14:25 UTCJul 7, 15:10 UTC45m
2026-07-06 N44290 - Jul 6, 21:55 UTCJul 6, 23:05 UTC1h 10m
2026-07-06 N44290 - Jul 6, 16:00 UTCJul 6, 16:50 UTC50m
2026-07-05 N44290 - Jul 5, 18:35 UTCJul 5, 18:55 UTC20m
2026-07-04 N44290 - Jul 4, 20:35 UTCJul 4, 22:00 UTC1h 25m
2026-07-04 N44290 - Jul 4, 18:20 UTCJul 4, 19:35 UTC1h 15m
2026-07-04 N44290 - Jul 4, 17:00 UTCJul 4, 17:25 UTC25m
2026-07-04 N44290 - Jul 4, 15:05 UTCJul 4, 15:15 UTC10m
2026-07-04 N44290 - Jul 4, 13:25 UTCJul 4, 14:20 UTC55m
2026-07-03 N44290 - Jul 3, 13:20 UTCJul 3, 13:40 UTC20m
2026-07-02 N44290 - Jul 2, 22:25 UTCJul 3, 00:15 UTC1h 50m
2026-06-28 N44290 - Jun 28, 14:25 UTCJun 28, 16:05 UTC1h 40m
2026-06-27 N44290 - Jun 27, 15:10 UTCJun 27, 16:49 UTC1h 40m
2026-06-26 N44290 - Jun 26, 22:25 UTCJun 27, 00:14 UTC1h 50m
2026-06-26 N44290 - Jun 26, 12:44 UTCJun 26, 13:30 UTC45m
2026-06-26 N44290 - Jun 26, 00:05 UTCJun 26, 01:15 UTC1h 10m
2026-06-25 N44290 - Jun 25, 20:49 UTCJun 25, 22:20 UTC1h 30m
2026-06-25 N44290 - Jun 25, 18:00 UTCJun 25, 19:24 UTC1h 25m
2026-06-24 N44290 - Jun 24, 21:04 UTCJun 24, 22:19 UTC1h 15m

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 N44290 page for operator, model, and routing details .

Mode-S A555B7 frequently asked

What is Mode-S code A555B7?
A555B7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N44290.
Where is Mode-S A555B7 registered?
Mode-S code A555B7 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 A555B7 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A555B7, octal 51252667, decimal 10,835,383.
What flights does A555B7 operate?
Mode-S A555B7 has broadcast 1 distinct callsign, including N44290.