Apparatus

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sensors Mode-S transponder

A81705

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N620J · PIPER PA-28-140/150/160/180 · operated by EXECUTIVE FLYERS INC

Hex
A81705
Octal
52013405
Decimal
11,015,941
Country
US
Tail
N620J
Type
P28A
Broadcasting now · callsign N620J · 1,775 ft
Flights observed
150
Distinct callsigns
1
Country
US
Last broadcast
3d ago

Current position

A81705 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A81705 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
N620J - 150 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-11 N620J SAC → SAC Jul 11, 17:30 UTCJul 11, 18:30 UTC1h 0m
2026-07-09 N620J SAC → SAC Jul 9, 00:55 UTCJul 9, 01:20 UTC25m
2026-07-05 N620J - Jul 5, 19:10 UTCJul 5, 20:15 UTC1h 5m
2026-07-01 N620J SAC → SAC Jul 1, 01:10 UTCJul 1, 01:45 UTC35m
2026-06-30 N620J SAC → SAC Jun 30, 19:00 UTCJun 30, 20:00 UTC1h 0m
2026-06-30 N620J - Jun 30, 16:25 UTCJun 30, 17:25 UTC1h 0m
2026-06-30 N620J SAC → SAC Jun 30, 14:10 UTCJun 30, 15:20 UTC1h 10m
2026-06-29 N620J - Jun 29, 22:00 UTCJun 30, 00:04 UTC2h 5m
2026-06-29 N620J SAC → SAC Jun 29, 19:20 UTCJun 29, 20:44 UTC1h 25m
2026-06-29 N620J SAC → SAC Jun 29, 17:14 UTCJun 29, 18:10 UTC55m
2026-06-29 N620J SAC → SAC Jun 29, 15:04 UTCJun 29, 15:54 UTC50m
2026-06-28 N620J - Jun 28, 00:25 UTCJun 28, 01:25 UTC1h 0m
2026-06-27 N620J - Jun 27, 20:59 UTCJun 27, 22:09 UTC1h 10m
2026-06-26 N620J SAC → SAC Jun 26, 20:04 UTCJun 26, 21:24 UTC1h 20m
2026-06-26 N620J SAC → SAC Jun 26, 13:55 UTCJun 26, 14:44 UTC50m
2026-06-26 N620J SAC → SAC Jun 26, 01:05 UTCJun 26, 02:30 UTC1h 25m
2026-06-25 N620J - Jun 25, 22:20 UTCJun 25, 22:29 UTC10m
2026-06-25 N620J - Jun 25, 21:10 UTCJun 25, 22:14 UTC1h 5m
2026-06-25 N620J - Jun 25, 18:39 UTCJun 25, 19:44 UTC1h 5m
2026-06-25 N620J - Jun 25, 17:20 UTCJun 25, 18:29 UTC1h 10m
2026-06-25 N620J SAC → COA Jun 25, 15:50 UTCJun 25, 16:39 UTC50m
2026-06-25 N620J - Jun 25, 01:35 UTCJun 25, 03:20 UTC1h 45m
2026-06-24 N620J SAC → SAC Jun 24, 22:04 UTCJun 24, 23:04 UTC1h 0m
2026-06-24 N620J SAC → SAC Jun 24, 19:29 UTCJun 24, 20:49 UTC1h 20m
2026-06-24 N620J SAC → SAC Jun 24, 16:59 UTCJun 24, 18:09 UTC1h 10m
2026-06-24 N620J SAC → SAC Jun 24, 14:04 UTCJun 24, 15:14 UTC1h 10m
2026-06-24 N620J SAC → SAC Jun 24, 02:15 UTCJun 24, 03:29 UTC1h 15m
2026-06-23 N620J - Jun 23, 20:54 UTCJun 23, 23:00 UTC2h 5m
2026-06-23 N620J - Jun 23, 18:39 UTCJun 23, 19:39 UTC1h 0m
2026-06-23 N620J SAC → SAC Jun 23, 17:09 UTCJun 23, 17:59 UTC50m
2026-06-23 N620J - Jun 23, 15:09 UTCJun 23, 15:24 UTC15m
2026-06-23 N620J - Jun 23, 00:45 UTCJun 23, 00:54 UTC10m
2026-06-23 N620J - Jun 23, 00:04 UTCJun 23, 00:30 UTC25m
2026-06-22 N620J - Jun 22, 23:24 UTCJun 22, 23:55 UTC30m
2026-06-22 N620J - Jun 22, 18:54 UTCJun 22, 19:09 UTC15m
2026-06-22 N620J - Jun 22, 18:24 UTCJun 22, 18:30 UTC5m
2026-06-22 N620J - Jun 22, 18:04 UTCJun 22, 18:19 UTC15m
2026-06-22 N620J - Jun 22, 17:34 UTCJun 22, 18:00 UTC25m
2026-06-22 N620J SAC → SAC Jun 22, 14:59 UTCJun 22, 16:20 UTC1h 20m
2026-06-20 N620J SAC → SAC Jun 20, 19:29 UTCJun 20, 20:49 UTC1h 20m
2026-06-20 N620J - Jun 20, 17:19 UTCJun 20, 18:10 UTC50m
2026-06-20 N620J - Jun 20, 01:29 UTCJun 20, 01:50 UTC20m
2026-06-20 N620J - Jun 20, 00:34 UTCJun 20, 01:05 UTC30m
2026-06-19 N620J SAC → SAC Jun 19, 20:59 UTCJun 19, 23:39 UTC2h 40m
2026-06-18 N620J - Jun 18, 20:15 UTCJun 18, 20:25 UTC10m
2026-06-18 N620J - Jun 18, 20:00 UTCJun 18, 20:05 UTC5m
2026-06-18 N620J - Jun 18, 19:40 UTCJun 18, 19:55 UTC15m
2026-06-18 N620J - Jun 18, 19:10 UTCJun 18, 19:30 UTC20m
2026-06-18 N620J - Jun 18, 16:50 UTCJun 18, 17:45 UTC55m
2026-06-18 N620J SAC → SAC Jun 18, 14:40 UTCJun 18, 15:50 UTC1h 10m

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 N620J page for operator, model, and routing details .

Mode-S A81705 frequently asked

What is Mode-S code A81705?
A81705 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N620J.
Where is Mode-S A81705 registered?
Mode-S code A81705 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 A81705 broadcasting right now?
Yes. Mode-S A81705 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A81705, octal 52013405, decimal 11,015,941.
What flights does A81705 operate?
Mode-S A81705 has broadcast 1 distinct callsign, including N620J.