Apparatus

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sensors Mode-S transponder

A1E29F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N220SP · BELL 206 JetRanger · operated by KENTUCKY STATE POLICE

Hex
A1E29F
Octal
50361237
Decimal
10,609,311
Country
US
Tail
N220SP
Type
B06
No current signal · last broadcast 10h ago
Flights observed
0
Distinct callsigns
0
Country
US
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S A1E29F.

Country allocation

The ICAO 24-bit address A1E29F 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.

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 N220SP - Jul 17, 15:15 UTCJul 17, 17:09 UTC1h 55m
2026-07-17 N220SP - Jul 17, 12:25 UTCJul 17, 14:30 UTC2h 5m
2026-07-16 N220SP - Jul 16, 16:44 UTCJul 16, 17:10 UTC25m
2026-07-16 N220SP - Jul 16, 15:00 UTCJul 16, 15:25 UTC25m
2026-07-16 N220SP - Jul 16, 14:05 UTCJul 16, 14:15 UTC10m
2026-07-16 N220SP - Jul 16, 12:14 UTCJul 16, 12:55 UTC40m
2026-07-15 N220SP FFT → FFT Jul 15, 15:45 UTCJul 15, 17:50 UTC2h 5m
2026-07-15 N220SP - Jul 15, 12:30 UTCJul 15, 14:35 UTC2h 5m
2026-07-14 N220SP - Jul 14, 12:20 UTCJul 14, 12:35 UTC15m
2026-07-13 N220SP - Jul 13, 19:15 UTCJul 13, 19:45 UTC30m
2026-07-13 N220SP - Jul 13, 13:55 UTCJul 13, 14:05 UTC10m
2026-07-09 N220SP - Jul 9, 16:40 UTCJul 9, 18:45 UTC2h 5m
2026-07-09 N220SP - Jul 9, 13:45 UTCJul 9, 15:50 UTC2h 5m
2026-07-08 N220SP - Jul 8, 19:55 UTCJul 8, 20:10 UTC15m
2026-07-08 N220SP - Jul 8, 13:05 UTCJul 8, 13:55 UTC50m
2026-07-07 N220SP - Jul 7, 19:05 UTCJul 7, 19:50 UTC45m
2026-07-07 N220SP - Jul 7, 14:25 UTCJul 7, 15:05 UTC40m
2026-07-06 N220SP - Jul 6, 18:10 UTCJul 6, 18:30 UTC20m
2026-07-06 N220SP - Jul 6, 12:05 UTCJul 6, 12:30 UTC25m
2026-07-03 N220SP - Jul 3, 14:00 UTCJul 3, 14:30 UTC30m
2026-07-03 N220SP - Jul 3, 12:45 UTCJul 3, 13:15 UTC30m
2026-07-02 N220SP - Jul 2, 19:15 UTCJul 2, 19:25 UTC10m
2026-07-02 N220SP - Jul 2, 12:10 UTCJul 2, 12:25 UTC15m
2026-07-01 N220SP - Jul 1, 19:00 UTCJul 1, 19:10 UTC10m
2026-07-01 N220SP - Jul 1, 14:00 UTCJul 1, 14:20 UTC20m
2026-06-30 N220SP - Jun 30, 18:55 UTCJun 30, 19:10 UTC15m
2026-06-30 N220SP - Jun 30, 12:15 UTCJun 30, 13:05 UTC50m
2026-06-25 N220SP - Jun 25, 22:20 UTCJun 25, 22:45 UTC25m
2026-06-25 N220SP - Jun 25, 16:50 UTCJun 25, 18:10 UTC1h 20m
2026-06-25 N220SP - Jun 25, 12:10 UTCJun 25, 12:44 UTC35m
2026-06-23 N220SP - Jun 23, 19:15 UTCJun 23, 20:04 UTC50m
2026-06-23 N220SP - Jun 23, 12:05 UTCJun 23, 12:25 UTC20m
2026-06-22 N220SP - Jun 22, 18:44 UTCJun 22, 19:00 UTC15m
2026-06-22 N220SP - Jun 22, 14:45 UTCJun 22, 15:05 UTC20m
2026-06-19 N220SP - Jun 19, 17:14 UTCJun 19, 17:39 UTC25m
2026-06-19 N220SP - Jun 19, 11:49 UTCJun 19, 12:14 UTC25m
2026-06-18 N220SP - Jun 18, 18:20 UTCJun 18, 19:55 UTC1h 35m
2026-06-18 N220SP - Jun 18, 16:15 UTCJun 18, 17:00 UTC45m
2026-06-18 N220SP - Jun 18, 12:50 UTCJun 18, 14:55 UTC2h 5m
2026-06-17 N220SP - Jun 17, 19:20 UTCJun 17, 19:40 UTC20m
2026-06-17 N220SP - Jun 17, 16:50 UTCJun 17, 17:25 UTC35m
2026-06-17 N220SP - Jun 17, 14:40 UTCJun 17, 15:25 UTC45m
2026-06-17 N220SP - Jun 17, 11:50 UTCJun 17, 12:10 UTC20m
2026-06-16 N220SP - Jun 16, 19:00 UTCJun 16, 19:10 UTC10m
2026-06-16 N220SP - Jun 16, 11:55 UTCJun 16, 12:14 UTC20m
2026-06-15 N220SP - Jun 15, 19:25 UTCJun 15, 19:39 UTC15m
2026-06-15 N220SP - Jun 15, 12:10 UTCJun 15, 12:25 UTC15m
2026-06-12 N220SP - Jun 12, 16:45 UTCJun 12, 19:10 UTC2h 25m
2026-06-12 N220SP - Jun 12, 12:50 UTCJun 12, 14:35 UTC1h 45m
2026-06-11 N220SP - Jun 11, 19:10 UTCJun 11, 19:35 UTC25m

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 N220SP page for operator, model, and routing details .

Mode-S A1E29F frequently asked

What is Mode-S code A1E29F?
A1E29F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N220SP.
Where is Mode-S A1E29F registered?
Mode-S code A1E29F 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 A1E29F broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1E29F, octal 50361237, decimal 10,609,311.