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sensors Mode-S transponder

A0711B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N12772 · CESSNA 172 Skyhawk · operated by TRL AERO LLC

Hex
A0711B
Octal
50070433
Decimal
10,514,715
Country
US
Tail
N12772
Type
C172
No current signal · last broadcast 7d ago
Flights observed
181
Distinct callsigns
1
Country
US
Last broadcast
7d ago

Last known position

Most recent position reported by Mode-S A0711B.

Country allocation

The ICAO 24-bit address A0711B 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
N12772 - 181 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N12772 - Jul 26, 18:25 UTCJul 26, 19:05 UTC40m
2026-07-26 N12772 - Jul 26, 14:20 UTCJul 26, 15:10 UTC50m
2026-07-26 N12772 - Jul 26, 00:20 UTCJul 26, 01:15 UTC55m
2026-07-25 N12772 - Jul 25, 20:10 UTCJul 25, 21:05 UTC55m
2026-07-24 N12772 - Jul 24, 11:20 UTCJul 24, 13:45 UTC2h 25m
2026-07-17 N12772 - Jul 17, 19:00 UTCJul 17, 20:44 UTC1h 45m
2026-07-17 N12772 - Jul 17, 17:44 UTCJul 17, 18:19 UTC35m
2026-07-17 N12772 - Jul 17, 15:20 UTCJul 17, 15:55 UTC35m
2026-07-17 N12772 - Jul 17, 11:20 UTCJul 17, 12:04 UTC45m
2026-07-16 N12772 BJC → BJC Jul 16, 00:55 UTCJul 16, 02:15 UTC1h 20m
2026-07-15 N12772 BJC → BJC Jul 15, 20:20 UTCJul 15, 21:10 UTC50m
2026-07-15 N12772 GXY → BJC Jul 15, 16:05 UTCJul 15, 16:40 UTC35m
2026-07-15 N12772 BJC → GXY Jul 15, 13:55 UTCJul 15, 14:40 UTC45m
2026-07-15 N12772 BJC → BJC Jul 15, 02:50 UTCJul 15, 03:50 UTC1h 0m
2026-07-14 N12772 - Jul 14, 23:35 UTCJul 15, 00:20 UTC45m
2026-07-14 N12772 - Jul 14, 13:10 UTCJul 14, 13:30 UTC20m
2026-07-13 N12772 BJC → BJC Jul 13, 14:25 UTCJul 13, 15:20 UTC55m
2026-07-13 N12772 - Jul 13, 00:25 UTCJul 13, 01:30 UTC1h 5m
2026-07-12 N12772 - Jul 12, 22:35 UTCJul 12, 23:30 UTC55m
2026-07-12 N12772 BJC → BJC Jul 12, 13:40 UTCJul 12, 16:01 UTC2h 20m
2026-07-10 N12772 - Jul 10, 18:55 UTCJul 10, 19:50 UTC55m
2026-07-10 N12772 - Jul 10, 15:15 UTCJul 10, 16:15 UTC1h 0m
2026-07-10 N12772 - Jul 10, 01:35 UTCJul 10, 02:20 UTC45m
2026-07-10 N12772 - Jul 10, 00:40 UTCJul 10, 00:50 UTC10m
2026-07-09 N12772 - Jul 9, 23:45 UTCJul 10, 00:00 UTC15m
2026-07-09 N12772 - Jul 9, 17:55 UTCJul 9, 19:05 UTC1h 10m
2026-07-09 N12772 - Jul 9, 16:40 UTCJul 9, 17:15 UTC35m
2026-07-09 N12772 - Jul 9, 13:10 UTCJul 9, 14:30 UTC1h 20m
2026-07-09 N12772 COS → BJC Jul 9, 04:20 UTCJul 9, 05:05 UTC45m
2026-07-09 N12772 - Jul 9, 04:00 UTCJul 9, 04:15 UTC15m
2026-07-09 N12772 BJC → COS Jul 9, 03:10 UTCJul 9, 03:55 UTC45m
2026-07-08 N12772 BJC → BJC Jul 8, 23:45 UTCJul 9, 00:40 UTC55m
2026-07-08 N12772 GXY → BJC Jul 8, 16:10 UTCJul 8, 17:05 UTC55m
2026-07-08 N12772 BJC → GXY Jul 8, 14:20 UTCJul 8, 15:00 UTC40m
2026-07-08 N12772 BJC → BJC Jul 8, 01:30 UTCJul 8, 02:20 UTC50m
2026-07-07 N12772 - Jul 7, 22:55 UTCJul 8, 00:10 UTC1h 15m
2026-07-07 N12772 - Jul 7, 19:55 UTCJul 7, 21:00 UTC1h 5m
2026-07-07 N12772 - Jul 7, 03:35 UTCJul 7, 04:25 UTC50m
2026-07-06 N12772 - Jul 6, 23:45 UTCJul 7, 00:25 UTC40m
2026-07-05 N12772 - Jul 5, 20:10 UTCJul 5, 21:00 UTC50m
2026-07-05 N12772 - Jul 5, 14:15 UTCJul 5, 14:45 UTC30m
2026-07-04 N12772 GXY → BJC Jul 4, 17:40 UTCJul 4, 18:10 UTC30m
2026-07-04 N12772 BJC → GXY Jul 4, 15:55 UTCJul 4, 16:30 UTC35m
2026-07-03 N12772 - Jul 3, 16:50 UTCJul 3, 17:30 UTC40m
2026-07-03 N12772 BJC → GXY Jul 3, 14:55 UTCJul 3, 15:30 UTC35m
2026-07-01 N12772 - Jul 1, 23:30 UTCJul 2, 00:15 UTC45m
2026-07-01 N12772 - Jul 1, 19:55 UTCJul 1, 20:55 UTC1h 0m
2026-07-01 N12772 - Jul 1, 16:40 UTCJul 1, 18:55 UTC2h 15m
2026-07-01 N12772 - Jul 1, 13:40 UTCJul 1, 15:40 UTC2h 0m
2026-06-30 N12772 - Jun 30, 18:30 UTCJun 30, 21:20 UTC2h 50m

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 N12772 page for operator, model, and routing details .

Mode-S A0711B frequently asked

What is Mode-S code A0711B?
A0711B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N12772.
Where is Mode-S A0711B registered?
Mode-S code A0711B 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 A0711B broadcasting right now?
No active broadcast right now. Last signal was 7d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0711B, octal 50070433, decimal 10,514,715.
What flights does A0711B operate?
Mode-S A0711B has broadcast 1 distinct callsign, including N12772.