Apparatus

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sensors Mode-S transponder

AD61D1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N961W · PIPER PA-28-140/150/160/180 · operated by LOMA AVIATION LLC

Hex
AD61D1
Octal
53260721
Decimal
11,362,769
Country
US
Tail
N961W
Type
P28A
No current signal · last broadcast 3h ago
Flights observed
155
Distinct callsigns
1
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S AD61D1.

Country allocation

The ICAO 24-bit address AD61D1 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
N961W - 155 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N961W - Jul 14, 18:30 UTCJul 14, 19:30 UTC1h 0m
2026-07-14 N961W - Jul 14, 15:55 UTCJul 14, 16:55 UTC1h 0m
2026-07-13 N961W SEE → SEE Jul 13, 18:50 UTCJul 13, 19:40 UTC50m
2026-07-12 N961W - Jul 12, 18:20 UTCJul 12, 19:30 UTC1h 10m
2026-07-11 N961W - Jul 11, 16:00 UTCJul 11, 17:05 UTC1h 5m
2026-07-10 N961W - Jul 10, 21:35 UTCJul 10, 22:30 UTC55m
2026-07-10 N961W - Jul 10, 04:25 UTCJul 10, 05:10 UTC45m
2026-07-10 N961W SEE → HMT Jul 10, 03:40 UTCJul 10, 04:20 UTC40m
2026-07-09 N961W SEE → SEE Jul 9, 18:05 UTCJul 9, 19:40 UTC1h 35m
2026-07-09 N961W - Jul 9, 00:40 UTCJul 9, 01:30 UTC50m
2026-07-08 N961W SEE → SEE Jul 8, 20:50 UTCJul 8, 21:15 UTC25m
2026-07-08 N961W SEE → SEE Jul 8, 18:05 UTCJul 8, 19:15 UTC1h 10m
2026-07-08 N961W SEE → SEE Jul 8, 15:45 UTCJul 8, 16:50 UTC1h 5m
2026-07-07 N961W SEE → SEE Jul 7, 23:45 UTCJul 8, 00:45 UTC1h 0m
2026-07-07 N961W SEE → SEE Jul 7, 18:55 UTCJul 7, 20:15 UTC1h 20m
2026-07-07 N961W - Jul 7, 15:45 UTCJul 7, 16:50 UTC1h 5m
2026-07-06 N961W SEE → SEE Jul 6, 18:20 UTCJul 6, 19:10 UTC50m
2026-07-05 N961W SEE → SEE Jul 5, 16:45 UTCJul 5, 17:40 UTC55m
2026-07-03 N961W SEE → SEE Jul 3, 18:15 UTCJul 3, 19:30 UTC1h 15m
2026-07-03 N961W SEE → SEE Jul 3, 04:00 UTCJul 3, 04:25 UTC25m
2026-07-03 N961W SEE → SEE Jul 3, 03:45 UTCJul 3, 03:55 UTC10m
2026-07-02 N961W - Jul 2, 18:00 UTCJul 2, 19:20 UTC1h 20m
2026-07-01 N961W - Jul 1, 20:50 UTCJul 1, 21:25 UTC35m
2026-07-01 N961W - Jul 1, 15:35 UTCJul 1, 17:10 UTC1h 35m
2026-06-24 N961W SEE → SEE Jun 24, 23:20 UTCJun 24, 23:50 UTC30m
2026-06-24 N961W SEE → SEE Jun 24, 21:34 UTCJun 24, 22:00 UTC25m
2026-06-24 N961W - Jun 24, 18:25 UTCJun 24, 19:20 UTC55m
2026-06-24 N961W SEE → SEE Jun 24, 16:45 UTCJun 24, 17:14 UTC30m
2026-06-23 N961W - Jun 23, 18:20 UTCJun 23, 18:39 UTC20m
2026-06-23 N961W - Jun 23, 16:54 UTCJun 23, 18:10 UTC1h 15m
2026-06-22 N961W SEE → SEE Jun 22, 16:50 UTCJun 22, 18:19 UTC1h 30m
2026-06-20 N961W SEE → SEE Jun 20, 18:19 UTCJun 20, 19:44 UTC1h 25m
2026-06-19 N961W SEE → SEE Jun 19, 23:04 UTCJun 19, 23:59 UTC55m
2026-06-19 N961W SEE → SEE Jun 19, 18:49 UTCJun 19, 19:19 UTC30m
2026-06-17 N961W - Jun 17, 20:55 UTCJun 17, 21:35 UTC40m
2026-06-17 N961W - Jun 17, 18:20 UTCJun 17, 19:10 UTC50m
2026-06-16 N961W - Jun 16, 23:45 UTCJun 17, 00:40 UTC55m
2026-06-16 N961W - Jun 16, 22:15 UTCJun 16, 22:50 UTC35m
2026-06-16 N961W - Jun 16, 21:15 UTCJun 16, 21:55 UTC40m
2026-06-16 N961W - Jun 16, 19:05 UTCJun 16, 19:45 UTC40m
2026-06-16 N961W - Jun 16, 18:20 UTCJun 16, 19:00 UTC40m
2026-06-15 N961W - Jun 15, 18:15 UTCJun 15, 18:50 UTC35m
2026-06-13 N961W - Jun 13, 01:20 UTCJun 13, 01:40 UTC20m
2026-06-12 N961W - Jun 12, 22:55 UTCJun 13, 00:05 UTC1h 10m
2026-06-12 N961W - Jun 12, 16:10 UTCJun 12, 17:25 UTC1h 15m
2026-06-12 N961W - Jun 12, 14:50 UTCJun 12, 15:15 UTC25m
2026-06-11 N961W - Jun 11, 19:30 UTCJun 11, 20:20 UTC50m
2026-06-11 N961W - Jun 11, 16:00 UTCJun 11, 17:20 UTC1h 20m
2026-06-10 N961W - Jun 10, 18:35 UTCJun 10, 19:05 UTC30m
2026-06-10 N961W SEE → SEE Jun 10, 16:55 UTCJun 10, 17:25 UTC30m

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 N961W page for operator, model, and routing details .

Mode-S AD61D1 frequently asked

What is Mode-S code AD61D1?
AD61D1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N961W.
Where is Mode-S AD61D1 registered?
Mode-S code AD61D1 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 AD61D1 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD61D1, octal 53260721, decimal 11,362,769.
What flights does AD61D1 operate?
Mode-S AD61D1 has broadcast 1 distinct callsign, including N961W.