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sensors Mode-S transponder

A60561

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N4873F · PIPER PA-28-140/150/160/180 · operated by CIRCLE K SUPPLY CHAIN SOLUTIONS LLC

Hex
A60561
Octal
51402541
Decimal
10,880,353
Country
US
Tail
N4873F
Type
P28A
Broadcasting now · callsign N4873F · 75 ft
Flights observed
113
Distinct callsigns
1
Country
US
Last broadcast
1h ago

Current position

A60561 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A60561 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
N4873F - 113 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N4873F - Jul 14, 11:55 UTCJul 14, 12:15 UTC20m
2026-07-13 N4873F SRQ → SRQ Jul 13, 18:40 UTCJul 13, 19:50 UTC1h 10m
2026-07-10 N4873F - Jul 10, 15:30 UTCJul 10, 16:50 UTC1h 20m
2026-07-10 N4873F SRQ → SRQ Jul 10, 11:50 UTCJul 10, 13:40 UTC1h 50m
2026-07-09 N4873F - Jul 9, 20:45 UTCJul 9, 22:05 UTC1h 20m
2026-07-09 N4873F SRQ → SRQ Jul 9, 19:50 UTCJul 9, 20:05 UTC15m
2026-07-09 N4873F - Jul 9, 12:55 UTCJul 9, 14:00 UTC1h 5m
2026-07-07 N4873F SRQ → SRQ Jul 7, 01:40 UTCJul 7, 03:25 UTC1h 45m
2026-07-06 N4873F - Jul 6, 14:10 UTCJul 6, 14:35 UTC25m
2026-07-03 N4873F - Jul 3, 22:45 UTCJul 3, 23:45 UTC1h 0m
2026-07-02 N4873F - Jul 2, 11:50 UTCJul 2, 13:10 UTC1h 20m
2026-06-30 N4873F - Jun 30, 15:15 UTCJun 30, 15:45 UTC30m
2026-06-30 N4873F - Jun 30, 13:50 UTCJun 30, 14:15 UTC25m
2026-06-29 N4873F SRQ → SRQ Jun 29, 20:24 UTCJun 29, 21:50 UTC1h 25m
2026-06-29 N4873F - Jun 29, 18:05 UTCJun 29, 18:19 UTC15m
2026-06-29 N4873F - Jun 29, 16:55 UTCJun 29, 17:19 UTC25m
2026-06-29 N4873F - Jun 29, 16:25 UTCJun 29, 16:50 UTC25m
2026-06-29 N4873F - Jun 29, 12:34 UTCJun 29, 13:54 UTC1h 20m
2026-06-27 N4873F SRQ → SRQ Jun 27, 18:39 UTCJun 27, 19:29 UTC50m
2026-06-27 N4873F - Jun 27, 14:20 UTCJun 27, 15:55 UTC1h 35m
2026-06-27 N4873F SRQ → SRQ Jun 27, 11:55 UTCJun 27, 13:04 UTC1h 10m
2026-06-25 N4873F - Jun 25, 16:45 UTCJun 25, 17:54 UTC1h 10m
2026-06-24 N4873F - Jun 24, 16:40 UTCJun 24, 18:05 UTC1h 25m
2026-06-23 N4873F SRQ → SRQ Jun 23, 23:14 UTCJun 24, 00:30 UTC1h 15m
2026-06-23 N4873F - Jun 23, 17:50 UTCJun 23, 19:59 UTC2h 10m
2026-06-23 N4873F - Jun 23, 16:39 UTCJun 23, 16:54 UTC15m
2026-06-23 N4873F - Jun 23, 16:20 UTCJun 23, 16:29 UTC10m
2026-06-23 N4873F - Jun 23, 15:50 UTCJun 23, 16:14 UTC25m
2026-06-23 N4873F - Jun 23, 13:50 UTCJun 23, 14:44 UTC55m
2026-06-22 N4873F - Jun 22, 16:40 UTCJun 22, 17:29 UTC50m
2026-06-22 N4873F - Jun 22, 15:24 UTCJun 22, 15:40 UTC15m
2026-06-22 N4873F - Jun 22, 14:14 UTCJun 22, 14:29 UTC15m
2026-06-22 N4873F - Jun 22, 13:39 UTCJun 22, 14:10 UTC30m
2026-06-20 N4873F SRQ → SRQ Jun 20, 19:29 UTCJun 20, 20:49 UTC1h 20m
2026-06-20 N4873F - Jun 20, 16:14 UTCJun 20, 17:44 UTC1h 30m
2026-06-20 N4873F SRQ → SRQ Jun 20, 01:55 UTCJun 20, 02:44 UTC50m
2026-06-19 N4873F - Jun 19, 22:49 UTCJun 20, 00:14 UTC1h 25m
2026-06-19 N4873F - Jun 19, 15:34 UTCJun 19, 16:04 UTC30m
2026-06-19 N4873F SRQ → SRQ Jun 19, 01:24 UTCJun 19, 02:59 UTC1h 35m
2026-06-18 N4873F - Jun 18, 16:55 UTCJun 18, 18:35 UTC1h 40m
2026-06-18 N4873F - Jun 18, 14:30 UTCJun 18, 14:50 UTC20m
2026-06-16 N4873F SRQ → SRQ Jun 16, 01:45 UTCJun 16, 03:10 UTC1h 25m
2026-06-15 N4873F - Jun 15, 23:15 UTCJun 16, 00:50 UTC1h 35m
2026-06-15 N4873F - Jun 15, 19:25 UTCJun 15, 20:40 UTC1h 15m
2026-06-15 N4873F SRQ → SRQ Jun 15, 16:30 UTCJun 15, 17:45 UTC1h 15m
2026-06-13 N4873F MLB → SRQ Jun 13, 21:30 UTCJun 13, 23:50 UTC2h 20m
2026-06-13 N4873F - Jun 13, 19:35 UTCJun 13, 20:50 UTC1h 15m
2026-06-13 N4873F - Jun 13, 15:10 UTCJun 13, 15:50 UTC40m
2026-06-13 N4873F - Jun 13, 13:50 UTCJun 13, 14:35 UTC45m
2026-06-12 N4873F SRQ → SRQ Jun 12, 14:40 UTCJun 12, 16:00 UTC1h 20m

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 N4873F page for operator, model, and routing details .

Mode-S A60561 frequently asked

What is Mode-S code A60561?
A60561 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N4873F.
Where is Mode-S A60561 registered?
Mode-S code A60561 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 A60561 broadcasting right now?
Yes. Mode-S A60561 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A60561, octal 51402541, decimal 10,880,353.
What flights does A60561 operate?
Mode-S A60561 has broadcast 1 distinct callsign, including N4873F.