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sensors Mode-S transponder

A7F411

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N611SM · operated by REGISTRATION PENDING

Hex
A7F411
Octal
51772021
Decimal
11,006,993
Country
US
Tail
N611SM
Type
RV7
No current signal · last broadcast 8h ago
Flights observed
96
Distinct callsigns
1
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S A7F411.

Country allocation

The ICAO 24-bit address A7F411 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
N611SM - 96 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 N611SM - Jul 21, 16:20 UTCJul 21, 16:50 UTC30m
2026-07-21 N611SM - Jul 21, 01:05 UTCJul 21, 01:35 UTC30m
2026-07-20 N611SM - Jul 20, 19:00 UTCJul 20, 19:20 UTC20m
2026-07-20 N611SM - Jul 20, 16:45 UTCJul 20, 17:00 UTC15m
2026-07-19 N611SM - Jul 19, 19:40 UTCJul 19, 19:55 UTC15m
2026-07-19 N611SM - Jul 19, 16:45 UTCJul 19, 17:00 UTC15m
2026-07-18 N611SM - Jul 18, 01:39 UTCJul 18, 02:09 UTC30m
2026-07-17 N611SM - Jul 17, 18:55 UTCJul 17, 19:20 UTC25m
2026-07-17 N611SM - Jul 17, 16:44 UTCJul 17, 17:05 UTC20m
2026-07-17 N611SM - Jul 17, 00:30 UTCJul 17, 01:00 UTC30m
2026-07-16 N611SM - Jul 16, 15:40 UTCJul 16, 16:09 UTC30m
2026-07-16 N611SM - Jul 16, 02:50 UTCJul 16, 03:20 UTC30m
2026-07-15 N611SM - Jul 15, 15:25 UTCJul 15, 15:55 UTC30m
2026-07-15 N611SM - Jul 15, 02:50 UTCJul 15, 03:20 UTC30m
2026-07-14 N611SM - Jul 14, 16:10 UTCJul 14, 16:40 UTC30m
2026-07-12 N611SM - Jul 12, 20:05 UTCJul 12, 20:20 UTC15m
2026-07-12 N611SM - Jul 12, 17:55 UTCJul 12, 18:10 UTC15m
2026-07-11 N611SM - Jul 11, 21:05 UTCJul 11, 21:35 UTC30m
2026-07-11 N611SM - Jul 11, 20:05 UTCJul 11, 20:50 UTC45m
2026-07-11 N611SM - Jul 11, 17:20 UTCJul 11, 18:25 UTC1h 5m
2026-07-11 N611SM - Jul 11, 00:15 UTCJul 11, 00:45 UTC30m
2026-07-10 N611SM - Jul 10, 15:25 UTCJul 10, 16:00 UTC35m
2026-07-04 N611SM - Jul 4, 18:05 UTCJul 4, 18:20 UTC15m
2026-07-04 N611SM - Jul 4, 15:35 UTCJul 4, 15:45 UTC10m
2026-07-01 N611SM - Jul 1, 23:50 UTCJul 2, 00:20 UTC30m
2026-07-01 N611SM RHV → OAK Jul 1, 22:10 UTCJul 1, 22:25 UTC15m
2026-07-01 N611SM - Jul 1, 15:25 UTCJul 1, 15:55 UTC30m
2026-06-30 N611SM - Jun 30, 01:14 UTCJun 30, 01:45 UTC31m
2026-06-25 N611SM - Jun 25, 15:40 UTCJun 25, 16:09 UTC30m
2026-06-24 N611SM - Jun 24, 23:04 UTCJun 24, 23:34 UTC30m
2026-06-24 N611SM - Jun 24, 15:39 UTCJun 24, 16:19 UTC40m
2026-06-19 N611SM - Jun 19, 00:24 UTCJun 19, 00:40 UTC15m
2026-06-18 N611SM - Jun 18, 18:50 UTCJun 18, 19:05 UTC15m
2026-06-18 N611SM - Jun 18, 03:00 UTCJun 18, 03:30 UTC30m
2026-06-17 N611SM - Jun 17, 15:20 UTCJun 17, 15:50 UTC30m
2026-06-17 N611SM - Jun 17, 03:10 UTCJun 17, 03:40 UTC30m
2026-06-16 N611SM - Jun 16, 15:20 UTCJun 16, 15:50 UTC30m
2026-06-12 N611SM - Jun 12, 23:35 UTCJun 13, 00:05 UTC30m
2026-06-12 N611SM - Jun 12, 15:25 UTCJun 12, 15:50 UTC25m
2026-06-12 N611SM - Jun 12, 01:05 UTCJun 12, 01:35 UTC30m
2026-06-11 N611SM - Jun 11, 16:25 UTCJun 11, 16:50 UTC25m
2026-06-10 N611SM - Jun 10, 22:50 UTCJun 10, 23:20 UTC30m
2026-06-10 N611SM - Jun 10, 16:40 UTCJun 10, 17:05 UTC25m
2026-06-09 N611SM - Jun 9, 20:10 UTCJun 9, 20:25 UTC15m
2026-06-08 N611SM - Jun 8, 13:50 UTCJun 8, 14:00 UTC10m
2026-06-08 N611SM - Jun 8, 01:10 UTCJun 8, 02:05 UTC55m
2026-06-07 N611SM - Jun 7, 20:05 UTCJun 7, 23:15 UTC3h 10m
2026-06-05 N611SM - Jun 5, 03:50 UTCJun 5, 05:20 UTC1h 30m
2026-06-05 N611SM - Jun 5, 00:25 UTCJun 5, 02:50 UTC2h 25m
2026-06-04 N611SM - Jun 4, 03:20 UTCJun 4, 03:50 UTC30m

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 N611SM page for operator, model, and routing details .

Mode-S A7F411 frequently asked

What is Mode-S code A7F411?
A7F411 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N611SM.
Where is Mode-S A7F411 registered?
Mode-S code A7F411 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 A7F411 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 A7F411, octal 51772021, decimal 11,006,993.
What flights does A7F411 operate?
Mode-S A7F411 has broadcast 1 distinct callsign, including N611SM.