Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A1C482

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N21289 · CESSNA 172 Skyhawk · operated by KLEIN HERBERT III

Hex
A1C482
Octal
50342202
Decimal
10,601,602
Country
US
Tail
N21289
Type
C172
No current signal · last broadcast 8h ago
Flights observed
174
Distinct callsigns
1
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S A1C482.

Country allocation

The ICAO 24-bit address A1C482 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
N21289 - 174 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-01 N21289 - Jul 1, 19:00 UTCJul 1, 19:50 UTC50m
2026-07-01 N21289 - Jul 1, 17:20 UTCJul 1, 18:05 UTC45m
2026-07-01 N21289 BTP → BTP Jul 1, 14:20 UTCJul 1, 15:20 UTC1h 0m
2026-06-30 N21289 BTP → BTP Jun 30, 17:25 UTCJun 30, 19:20 UTC1h 55m
2026-06-30 N21289 BTP → BTP Jun 30, 16:05 UTCJun 30, 16:30 UTC25m
2026-06-30 N21289 BTP → BTP Jun 30, 14:25 UTCJun 30, 15:05 UTC40m
2026-06-30 N21289 BTP → BTP Jun 30, 13:05 UTCJun 30, 13:45 UTC40m
2026-06-29 N21289 BTP → BTP Jun 29, 21:54 UTCJun 29, 22:49 UTC55m
2026-06-29 N21289 - Jun 29, 20:30 UTCJun 29, 21:14 UTC45m
2026-06-29 N21289 - Jun 29, 19:29 UTCJun 29, 19:54 UTC25m
2026-06-29 N21289 BTP → BTP Jun 29, 17:55 UTCJun 29, 18:10 UTC15m
2026-06-29 N21289 BTP → BTP Jun 29, 17:30 UTCJun 29, 17:40 UTC10m
2026-06-29 N21289 BTP → BTP Jun 29, 15:54 UTCJun 29, 16:39 UTC45m
2026-06-28 N21289 BTP → BTP Jun 28, 23:29 UTCJun 29, 00:10 UTC40m
2026-06-26 N21289 BTP → BTP Jun 26, 17:19 UTCJun 26, 18:24 UTC1h 5m
2026-06-25 N21289 - Jun 25, 15:54 UTCJun 25, 16:39 UTC45m
2026-06-25 N21289 - Jun 25, 13:05 UTCJun 25, 14:55 UTC1h 50m
2026-06-24 N21289 BTP → BTP Jun 24, 23:34 UTCJun 25, 00:19 UTC45m
2026-06-24 N21289 BTP → BTP Jun 24, 21:50 UTCJun 24, 22:49 UTC1h 0m
2026-06-24 N21289 BTP → BTP Jun 24, 20:20 UTCJun 24, 21:09 UTC50m
2026-06-24 N21289 BTP → BTP Jun 24, 17:34 UTCJun 24, 18:25 UTC50m
2026-06-24 N21289 - Jun 24, 16:14 UTCJun 24, 16:40 UTC25m
2026-06-24 N21289 - Jun 24, 14:24 UTCJun 24, 15:14 UTC50m
2026-06-24 N21289 - Jun 24, 12:54 UTCJun 24, 13:44 UTC50m
2026-06-23 N21289 BTP → BTP Jun 23, 17:20 UTCJun 23, 19:44 UTC2h 25m
2026-06-23 N21289 - Jun 23, 13:09 UTCJun 23, 13:50 UTC40m
2026-06-21 N21289 - Jun 21, 19:50 UTCJun 21, 20:00 UTC10m
2026-06-21 N21289 - Jun 21, 18:50 UTCJun 21, 19:09 UTC20m
2026-06-21 N21289 BTP → BTP Jun 21, 17:29 UTCJun 21, 18:14 UTC45m
2026-06-21 N21289 - Jun 21, 15:59 UTCJun 21, 16:39 UTC40m
2026-06-20 N21289 BTP → BTP Jun 20, 17:34 UTCJun 20, 18:10 UTC35m
2026-06-20 N21289 BTP → BTP Jun 20, 14:44 UTCJun 20, 16:34 UTC1h 50m
2026-06-19 N21289 - Jun 19, 15:59 UTCJun 19, 16:39 UTC40m
2026-06-19 N21289 - Jun 19, 14:44 UTCJun 19, 15:04 UTC20m
2026-06-19 N21289 - Jun 19, 12:54 UTCJun 19, 13:20 UTC25m
2026-06-17 N21289 BTP → BTP Jun 17, 17:25 UTCJun 17, 18:56 UTC1h 30m
2026-06-16 N21289 - Jun 16, 22:15 UTCJun 16, 23:45 UTC1h 30m
2026-06-16 N21289 - Jun 16, 20:15 UTCJun 16, 21:15 UTC1h 0m
2026-06-16 N21289 - Jun 16, 19:25 UTCJun 16, 19:45 UTC20m
2026-06-16 N21289 - Jun 16, 17:24 UTCJun 16, 17:49 UTC25m
2026-06-16 N21289 BTP → BTP Jun 16, 14:30 UTCJun 16, 15:09 UTC40m
2026-06-15 N21289 BTP → BTP Jun 15, 18:55 UTCJun 15, 19:39 UTC45m
2026-06-15 N21289 BTP → BTP Jun 15, 16:04 UTCJun 15, 16:45 UTC40m
2026-06-15 N21289 BTP → BTP Jun 15, 14:24 UTCJun 15, 15:04 UTC40m
2026-06-13 N21289 - Jun 13, 19:00 UTCJun 13, 19:40 UTC40m
2026-06-13 N21289 BTP → BTP Jun 13, 16:55 UTCJun 13, 17:35 UTC40m
2026-06-12 N21289 BTP → BTP Jun 12, 14:30 UTCJun 12, 15:15 UTC45m
2026-06-12 N21289 BTP → BTP Jun 12, 12:55 UTCJun 12, 13:40 UTC45m
2026-06-11 N21289 BTP → BTP Jun 11, 14:25 UTCJun 11, 15:20 UTC55m
2026-06-11 N21289 - Jun 11, 12:50 UTCJun 11, 13:45 UTC55m

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 N21289 page for operator, model, and routing details .

Mode-S A1C482 frequently asked

What is Mode-S code A1C482?
A1C482 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N21289.
Where is Mode-S A1C482 registered?
Mode-S code A1C482 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 A1C482 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1C482, octal 50342202, decimal 10,601,602.
What flights does A1C482 operate?
Mode-S A1C482 has broadcast 1 distinct callsign, including N21289.