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sensors Mode-S transponder

A41121

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N361ML · CESSNA 510 Citation Mustang · operated by NEW MFIS HOLDINGS LLC, BAM CCM LLC

Hex
A41121
Octal
51010441
Decimal
10,752,289
Country
US
Tail
N361ML
Type
C510
No current signal · last broadcast 9d ago
Flights observed
99
Distinct callsigns
1
Country
US
Last broadcast
9d ago

Last known position

Most recent position reported by Mode-S A41121.

Country allocation

The ICAO 24-bit address A41121 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
N361ML - 99 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 N361ML - Jul 24, 00:20 UTCJul 24, 00:45 UTC25m
2026-07-23 N361ML - Jul 23, 23:40 UTCJul 24, 00:05 UTC25m
2026-07-19 N361ML - Jul 19, 23:05 UTCJul 19, 23:50 UTC45m
2026-07-17 N361ML HII → MYF Jul 17, 19:00 UTCJul 17, 19:40 UTC40m
2026-07-14 N361ML - Jul 14, 22:15 UTCJul 14, 22:35 UTC20m
2026-07-14 N361ML - Jul 14, 21:20 UTCJul 14, 22:05 UTC45m
2026-07-14 N361ML HSH → CNO Jul 14, 16:45 UTCJul 14, 17:25 UTC40m
2026-07-14 N361ML HII → HSH Jul 14, 14:30 UTCJul 14, 14:50 UTC20m
2026-07-12 N361ML HSH → HII Jul 12, 21:45 UTCJul 12, 22:05 UTC20m
2026-07-12 N361ML CLD → HSH Jul 12, 19:55 UTCJul 12, 20:45 UTC50m
2026-07-12 N361ML HSH → CLD Jul 12, 18:25 UTCJul 12, 19:15 UTC50m
2026-07-11 N361ML CLD → HSH Jul 11, 15:30 UTCJul 11, 16:20 UTC50m
2026-07-11 N361ML HII → CLD Jul 11, 13:50 UTCJul 11, 14:30 UTC40m
2026-07-09 N361ML HSH → HII Jul 9, 22:05 UTCJul 9, 22:30 UTC25m
2026-07-09 N361ML - Jul 9, 19:05 UTCJul 9, 20:00 UTC55m
2026-07-07 N361ML - Jul 7, 17:25 UTCJul 7, 18:10 UTC45m
2026-07-07 N361ML HII → HSH Jul 7, 15:40 UTCJul 7, 16:00 UTC20m
2026-06-30 N361ML LAS → HII Jun 30, 05:50 UTCJun 30, 07:25 UTC1h 35m
2026-06-30 N361ML HII → LAS Jun 30, 00:35 UTCJun 30, 01:09 UTC35m
2026-06-28 N361ML - Jun 28, 17:04 UTCJun 28, 17:39 UTC35m
2026-06-28 N361ML - Jun 28, 15:20 UTCJun 28, 15:44 UTC25m
2026-06-27 N361ML - Jun 27, 03:20 UTCJun 27, 03:55 UTC35m
2026-06-27 N361ML - Jun 27, 02:20 UTCJun 27, 02:45 UTC25m
2026-06-25 N361ML - Jun 25, 01:44 UTCJun 25, 02:19 UTC35m
2026-06-25 N361ML - Jun 25, 00:09 UTCJun 25, 01:19 UTC1h 10m
2026-06-24 N361ML HII → CNO Jun 24, 21:19 UTCJun 24, 22:00 UTC40m
2026-06-23 N361ML - Jun 23, 01:45 UTCJun 23, 02:09 UTC25m
2026-06-22 N361ML TOA → HSH Jun 22, 23:45 UTCJun 23, 00:35 UTC50m
2026-06-22 N361ML - Jun 22, 19:09 UTCJun 22, 20:04 UTC55m
2026-06-22 N361ML HII → HSH Jun 22, 15:50 UTCJun 22, 16:14 UTC25m
2026-06-21 N361ML SBA → HII Jun 21, 05:10 UTCJun 21, 06:10 UTC1h 0m
2026-06-20 N361ML HII → SBA Jun 20, 16:00 UTCJun 20, 17:14 UTC1h 15m
2026-06-19 N361ML HSH → HII Jun 19, 19:14 UTCJun 19, 19:39 UTC25m
2026-06-19 N361ML - Jun 19, 17:55 UTCJun 19, 18:44 UTC50m
2026-06-17 N361ML - Jun 17, 23:10 UTCJun 17, 23:55 UTC45m
2026-06-17 N361ML HII → HSH Jun 17, 22:10 UTCJun 17, 22:40 UTC30m
2026-06-15 N361ML - Jun 15, 03:45 UTCJun 15, 04:10 UTC25m
2026-06-14 N361ML HII → HSH Jun 14, 20:15 UTCJun 14, 20:40 UTC25m
2026-06-14 N361ML - Jun 14, 19:00 UTCJun 14, 19:25 UTC25m
2026-06-14 N361ML - Jun 14, 18:00 UTCJun 14, 18:30 UTC30m
2026-06-14 N361ML - Jun 14, 16:05 UTCJun 14, 16:35 UTC30m
2026-06-10 N361ML - Jun 10, 22:30 UTCJun 10, 23:00 UTC30m
2026-06-10 N361ML - Jun 10, 20:50 UTCJun 10, 21:20 UTC30m
2026-06-10 N361ML HII → HSH Jun 10, 19:00 UTCJun 10, 19:25 UTC25m
2026-06-10 N361ML HSH → HII Jun 10, 03:35 UTCJun 10, 04:00 UTC25m
2026-06-09 N361ML HII → HSH Jun 9, 20:40 UTCJun 9, 21:05 UTC25m
2026-06-08 N361ML HSH → HII Jun 8, 14:10 UTCJun 8, 14:35 UTC25m
2026-06-08 N361ML HII → HSH Jun 8, 13:00 UTCJun 8, 13:25 UTC25m
2026-06-02 N361ML - Jun 2, 21:45 UTCJun 2, 22:05 UTC20m
2026-06-02 N361ML - Jun 2, 20:40 UTCJun 2, 21:35 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 N361ML page for operator, model, and routing details .

Mode-S A41121 frequently asked

What is Mode-S code A41121?
A41121 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N361ML.
Where is Mode-S A41121 registered?
Mode-S code A41121 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 A41121 broadcasting right now?
No active broadcast right now. Last signal was 9d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A41121, octal 51010441, decimal 10,752,289.
What flights does A41121 operate?
Mode-S A41121 has broadcast 1 distinct callsign, including N361ML.