sensors Mode-S transponder

A071D2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N128ED · operated by SIMPLY LIVING LLC

Hex
A071D2
Octal
50070722
Decimal
10,514,898
Country
US
Tail
N128ED
No current signal · last broadcast 2d ago
Flights observed
29
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A071D2.

Country allocation

The ICAO 24-bit address A071D2 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
N128ED - 29 2026-05-31

Recent flights last 29

DateFlightRouteTakeoffLandingDuration
2026-05-31 N128ED - May 31, 09:25 UTCMay 31, 11:50 UTC2h 25m
2026-05-29 N128ED - May 29, 07:40 UTCMay 29, 09:35 UTC1h 55m
2026-05-28 N128ED - May 28, 06:35 UTCMay 28, 08:05 UTC1h 30m
2026-05-19 N128ED - May 19, 09:55 UTCMay 19, 10:30 UTC35m
2026-05-19 N128ED - May 19, 08:55 UTCMay 19, 09:45 UTC50m
2026-05-16 N128ED - May 16, 11:05 UTCMay 16, 12:50 UTC1h 45m
2026-05-13 N128ED - May 13, 09:45 UTCMay 13, 11:20 UTC1h 35m
2026-05-13 N128ED - May 13, 08:15 UTCMay 13, 08:30 UTC15m
2026-05-08 N128ED - May 8, 14:30 UTCMay 8, 16:05 UTC1h 35m
2026-05-07 N128ED - May 7, 17:00 UTCMay 7, 18:35 UTC1h 35m
2026-05-07 N128ED - May 7, 14:40 UTCMay 7, 16:15 UTC1h 35m
2026-05-07 N128ED - May 7, 11:30 UTCMay 7, 12:35 UTC1h 5m
2026-05-07 N128ED - May 7, 08:50 UTCMay 7, 10:15 UTC1h 25m
2026-05-07 N128ED - May 7, 06:05 UTCMay 7, 07:40 UTC1h 35m
2026-05-06 N128ED - May 6, 14:15 UTCMay 6, 15:15 UTC1h 0m
2026-05-06 N128ED - May 6, 08:05 UTCMay 6, 09:00 UTC55m
2026-05-05 N128ED - May 5, 07:45 UTCMay 5, 08:00 UTC15m
2026-05-02 N128ED - May 2, 09:25 UTCMay 2, 11:15 UTC1h 50m
2026-04-26 N128ED - Apr 26, 08:35 UTCApr 26, 10:15 UTC1h 40m
2026-04-23 N128ED - Apr 23, 15:40 UTCApr 23, 16:10 UTC30m
2026-04-22 N128ED - Apr 22, 07:35 UTCApr 22, 08:10 UTC35m
2026-04-19 N128ED - Apr 19, 08:35 UTCApr 19, 08:55 UTC20m
2026-04-17 N128ED - Apr 17, 13:20 UTCApr 17, 14:10 UTC50m
2026-04-17 N128ED - Apr 17, 12:15 UTCApr 17, 13:15 UTC1h 0m
2026-04-17 N128ED - Apr 17, 09:20 UTCApr 17, 10:25 UTC1h 5m
2026-04-17 N128ED - Apr 17, 08:45 UTCApr 17, 09:15 UTC30m
2026-04-14 N128ED - Apr 14, 12:50 UTCApr 14, 14:00 UTC1h 10m
2026-04-14 N128ED - Apr 14, 12:30 UTCApr 14, 12:45 UTC15m
2026-04-14 N128ED - Apr 14, 09:10 UTCApr 14, 10:35 UTC1h 25m

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 N128ED page for operator, model, and routing details .

Mode-S A071D2 frequently asked

What is Mode-S code A071D2?
A071D2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N128ED.
Where is Mode-S A071D2 registered?
Mode-S code A071D2 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 A071D2 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A071D2, octal 50070722, decimal 10,514,898.
What flights does A071D2 operate?
Mode-S A071D2 has broadcast 1 distinct callsign, including N128ED.