Apparatus

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sensors Mode-S transponder

A1C616

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N213QS · operated by NETJETS SALES INC

Hex
A1C616
Octal
50343026
Decimal
10,602,006
Country
US
Tail
N213QS
No current signal · last broadcast 6h ago
Flights observed
71
Distinct callsigns
2
Country
US
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S A1C616.

Country allocation

The ICAO 24-bit address A1C616 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 2 distinct

Callsign Airline Flights Last seen
EJA213 NetJets 61 2026-06-16
N213QS - 10 2026-06-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-16 EJA213 CMH → SDF Jun 16, 20:05 UTCJun 16, 20:15 UTC10m
2026-06-10 N213QS - Jun 10, 20:35 UTCJun 10, 21:15 UTC40m
2026-06-01 N213QS - Jun 1, 17:25 UTCJun 1, 17:45 UTC20m
2026-06-01 EJA213 CMH → SDF Jun 1, 02:10 UTCJun 1, 04:10 UTC2h 0m
2026-05-31 N213QS - May 31, 14:05 UTCMay 31, 16:35 UTC2h 30m
2026-05-31 N213QS - May 31, 11:20 UTCMay 31, 12:05 UTC45m
2026-05-30 EJA213 CMH → SDF May 30, 15:25 UTCMay 30, 17:40 UTC2h 15m
2026-05-29 EJA213 CMH → SDF May 29, 20:05 UTCMay 29, 21:40 UTC1h 35m
2026-05-29 EJA213 CMH → SDF May 29, 18:10 UTCMay 29, 19:20 UTC1h 10m
2026-05-29 EJA213 CMH → SDF May 29, 12:40 UTCMay 29, 14:05 UTC1h 25m
2026-05-28 EJA213 CMH → SDF May 28, 20:20 UTCMay 28, 21:50 UTC1h 30m
2026-05-28 EJA213 CMH → SDF May 28, 18:20 UTCMay 28, 19:30 UTC1h 10m
2026-05-28 EJA213 CMH → SDF May 28, 15:40 UTCMay 28, 16:50 UTC1h 10m
2026-05-28 EJA213 CMH → SDF May 28, 12:05 UTCMay 28, 14:35 UTC2h 30m
2026-05-27 N213QS - May 27, 19:50 UTCMay 27, 20:45 UTC55m
2026-05-27 N213QS - May 27, 16:15 UTCMay 27, 18:00 UTC1h 45m
2026-05-27 EJA213 CMH → SDF May 27, 14:10 UTCMay 27, 15:15 UTC1h 5m
2026-05-26 EJA213 CMH → SDF May 26, 21:09 UTCMay 26, 22:15 UTC1h 5m
2026-05-26 EJA213 CMH → SDF May 26, 18:19 UTCMay 26, 18:59 UTC40m
2026-05-26 EJA213 CMH → SDF May 26, 15:00 UTCMay 26, 15:39 UTC40m
2026-05-25 EJA213 CMH → SDF May 25, 21:15 UTCMay 25, 22:44 UTC1h 30m
2026-05-25 EJA213 CMH → SDF May 25, 17:00 UTCMay 25, 18:35 UTC1h 35m
2026-05-25 EJA213 CMH → SDF May 25, 13:45 UTCMay 25, 15:45 UTC2h 0m
2026-05-24 EJA213 CMH → SDF May 24, 18:40 UTCMay 24, 19:55 UTC1h 15m
2026-05-24 EJA213 CMH → SDF May 24, 16:55 UTCMay 24, 17:25 UTC30m
2026-05-23 EJA213 CMH → SDF May 23, 20:05 UTCMay 24, 00:35 UTC4h 30m
2026-05-23 EJA213 CMH → SDF May 23, 17:40 UTCMay 23, 18:30 UTC51m
2026-05-22 EJA213 CMH → SDF May 22, 22:10 UTCMay 23, 00:25 UTC2h 15m
2026-05-22 EJA213 CMH → SDF May 22, 20:15 UTCMay 22, 21:00 UTC45m
2026-05-22 EJA213 CMH → SDF May 22, 17:15 UTCMay 22, 18:55 UTC1h 40m
2026-05-22 EJA213 CMH → SDF May 22, 15:10 UTCMay 22, 16:00 UTC50m
2026-05-21 EJA213 CMH → SDF May 21, 19:45 UTCMay 21, 22:05 UTC2h 20m
2026-05-21 EJA213 CMH → SDF May 21, 18:00 UTCMay 21, 18:35 UTC35m
2026-05-20 EJA213 CMH → SDF May 20, 02:45 UTCMay 20, 03:30 UTC45m
2026-05-19 EJA213 CMH → SDF May 19, 21:35 UTCMay 19, 22:45 UTC1h 10m
2026-05-18 EJA213 CMH → SDF May 18, 13:10 UTCMay 18, 17:30 UTC4h 20m
2026-05-17 EJA213 CMH → SDF May 17, 20:55 UTCMay 17, 21:55 UTC1h 0m
2026-05-17 EJA213 CMH → SDF May 17, 16:55 UTCMay 17, 19:50 UTC2h 55m
2026-05-16 EJA213 CMH → SDF May 16, 21:55 UTCMay 16, 22:15 UTC20m
2026-05-16 EJA213 CMH → SDF May 16, 19:00 UTCMay 16, 19:35 UTC35m
2026-05-16 EJA213 CMH → SDF May 16, 16:35 UTCMay 16, 17:20 UTC45m
2026-05-15 EJA213 CMH → SDF May 15, 23:35 UTCMay 16, 00:50 UTC1h 15m
2026-05-15 EJA213 CMH → SDF May 15, 21:10 UTCMay 15, 21:50 UTC40m
2026-05-15 EJA213 CMH → SDF May 15, 16:35 UTCMay 15, 19:30 UTC2h 55m
2026-05-15 EJA213 CMH → SDF May 15, 00:35 UTCMay 15, 01:25 UTC50m
2026-05-14 EJA213 CMH → SDF May 14, 21:40 UTCMay 14, 23:40 UTC2h 0m
2026-05-14 EJA213 CMH → SDF May 14, 18:45 UTCMay 14, 19:45 UTC1h 0m
2026-05-14 EJA213 CMH → SDF May 14, 16:20 UTCMay 14, 17:30 UTC1h 10m
2026-05-13 EJA213 CMH → SDF May 13, 23:25 UTCMay 14, 01:50 UTC2h 25m
2026-05-13 EJA213 CMH → SDF May 13, 21:10 UTCMay 13, 21:25 UTC15m

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 N213QS page for operator, model, and routing details .

Mode-S A1C616 frequently asked

What is Mode-S code A1C616?
A1C616 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N213QS.
Where is Mode-S A1C616 registered?
Mode-S code A1C616 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 A1C616 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1C616, octal 50343026, decimal 10,602,006.
What flights does A1C616 operate?
Mode-S A1C616 has broadcast 2 distinct callsigns, including EJA213, N213QS.