Apparatus

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sensors Mode-S transponder

A1EDB9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N223SC · CESSNA T206 Turbo Stationair · operated by SURDEX CORP

Hex
A1EDB9
Octal
50366671
Decimal
10,612,153
Country
US
Tail
N223SC
Type
T206
No current signal · last broadcast 5h ago
Flights observed
70
Distinct callsigns
1
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S A1EDB9.

Country allocation

The ICAO 24-bit address A1EDB9 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
N223SC - 70 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N223SC - Jul 14, 18:05 UTCJul 14, 18:30 UTC25m
2026-07-14 N223SC - Jul 14, 13:55 UTCJul 14, 17:05 UTC3h 10m
2026-07-12 N223SC - Jul 12, 20:15 UTCJul 12, 23:25 UTC3h 10m
2026-07-12 N223SC - Jul 12, 18:55 UTCJul 12, 19:20 UTC25m
2026-07-12 N223SC - Jul 12, 16:10 UTCJul 12, 16:30 UTC20m
2026-07-12 N223SC - Jul 12, 00:30 UTCJul 12, 01:00 UTC30m
2026-07-11 N223SC - Jul 11, 19:50 UTCJul 11, 23:55 UTC4h 5m
2026-07-11 N223SC - Jul 11, 18:10 UTCJul 11, 18:45 UTC35m
2026-07-11 N223SC - Jul 11, 16:00 UTCJul 11, 16:10 UTC10m
2026-07-11 N223SC - Jul 11, 13:55 UTCJul 11, 15:00 UTC1h 5m
2026-07-09 N223SC - Jul 9, 21:35 UTCJul 9, 22:00 UTC25m
2026-07-09 N223SC - Jul 9, 16:05 UTCJul 9, 17:45 UTC1h 40m
2026-07-09 N223SC - Jul 9, 01:35 UTCJul 9, 02:05 UTC30m
2026-07-08 N223SC - Jul 8, 22:50 UTCJul 9, 01:05 UTC2h 15m
2026-07-08 N223SC - Jul 8, 21:30 UTCJul 8, 22:15 UTC45m
2026-07-08 N223SC - Jul 8, 20:20 UTCJul 8, 20:50 UTC30m
2026-07-08 N223SC - Jul 8, 13:35 UTCJul 8, 14:25 UTC50m
2026-07-07 N223SC - Jul 7, 18:45 UTCJul 7, 20:20 UTC1h 35m
2026-07-01 N223SC - Jul 1, 20:30 UTCJul 1, 21:55 UTC1h 25m
2026-06-30 N223SC - Jun 30, 20:30 UTCJun 30, 23:25 UTC2h 55m
2026-06-30 N223SC - Jun 30, 13:25 UTCJun 30, 18:05 UTC4h 40m
2026-06-24 N223SC - Jun 24, 17:10 UTCJun 24, 17:25 UTC15m
2026-06-24 N223SC - Jun 24, 15:29 UTCJun 24, 16:29 UTC1h 0m
2026-06-24 N223SC - Jun 24, 14:24 UTCJun 24, 14:45 UTC20m
2026-06-23 N223SC - Jun 23, 21:54 UTCJun 23, 22:15 UTC20m
2026-06-23 N223SC - Jun 23, 15:40 UTCJun 23, 17:04 UTC1h 25m
2026-06-19 N223SC BMI → SUS Jun 19, 19:45 UTCJun 19, 20:59 UTC1h 15m
2026-06-19 N223SC - Jun 19, 15:14 UTCJun 19, 17:59 UTC2h 45m
2026-06-19 N223SC - Jun 19, 12:39 UTCJun 19, 13:09 UTC30m
2026-06-19 N223SC - Jun 19, 02:04 UTCJun 19, 02:45 UTC40m
2026-06-19 N223SC - Jun 19, 00:00 UTCJun 19, 01:10 UTC1h 9m
2026-06-18 N223SC - Jun 18, 17:30 UTCJun 18, 19:15 UTC1h 45m
2026-06-18 N223SC - Jun 18, 15:15 UTCJun 18, 16:00 UTC45m
2026-06-17 N223SC - Jun 17, 16:20 UTCJun 17, 17:15 UTC55m
2026-06-17 N223SC - Jun 17, 14:50 UTCJun 17, 15:46 UTC55m
2026-06-16 N223SC - Jun 16, 22:50 UTCJun 17, 00:10 UTC1h 20m
2026-06-16 N223SC - Jun 16, 21:10 UTCJun 16, 21:45 UTC35m
2026-06-16 N223SC SUS → SUS Jun 16, 19:19 UTCJun 16, 19:30 UTC10m
2026-06-13 N223SC SUS → SUS Jun 13, 19:00 UTCJun 13, 19:10 UTC10m
2026-06-11 N223SC - Jun 11, 13:40 UTCJun 11, 14:05 UTC25m
2026-06-10 N223SC - Jun 10, 21:30 UTCJun 10, 21:55 UTC25m
2026-06-05 N223SC - Jun 5, 22:00 UTCJun 5, 23:00 UTC1h 0m
2026-06-05 N223SC - Jun 5, 13:10 UTCJun 5, 16:55 UTC3h 45m
2026-06-04 N223SC LAF → LAF Jun 4, 12:50 UTCJun 4, 17:00 UTC4h 10m
2026-06-03 N223SC - Jun 3, 19:25 UTCJun 3, 20:35 UTC1h 10m
2026-06-03 N223SC - Jun 3, 13:00 UTCJun 3, 18:25 UTC5h 25m
2026-05-31 N223SC - May 31, 22:50 UTCJun 1, 00:00 UTC1h 10m
2026-05-31 N223SC - May 31, 12:55 UTCMay 31, 13:15 UTC20m
2026-05-30 N223SC - May 30, 21:30 UTCMay 30, 21:40 UTC10m
2026-05-30 N223SC - May 30, 19:15 UTCMay 30, 20:55 UTC1h 40m

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 N223SC page for operator, model, and routing details .

Mode-S A1EDB9 frequently asked

What is Mode-S code A1EDB9?
A1EDB9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N223SC.
Where is Mode-S A1EDB9 registered?
Mode-S code A1EDB9 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 A1EDB9 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1EDB9, octal 50366671, decimal 10,612,153.
What flights does A1EDB9 operate?
Mode-S A1EDB9 has broadcast 1 distinct callsign, including N223SC.