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sensors Mode-S transponder

A3F2E7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N3534S · CESSNA 172 Skyhawk · operated by INFINITE AIR CENTER LLC

Hex
A3F2E7
Octal
50771347
Decimal
10,744,551
Country
US
Tail
N3534S
Type
C172
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
163
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S A3F2E7.

Country allocation

The ICAO 24-bit address A3F2E7 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
N3534S - 163 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N3534S - Jul 26, 20:40 UTCJul 26, 21:45 UTC1h 5m
2026-07-24 N3534S - Jul 24, 18:25 UTCJul 24, 18:45 UTC20m
2026-07-24 N3534S - Jul 24, 17:25 UTCJul 24, 18:20 UTC55m
2026-07-24 N3534S - Jul 24, 02:00 UTCJul 24, 03:15 UTC1h 15m
2026-07-23 N3534S - Jul 23, 23:45 UTCJul 24, 01:05 UTC1h 20m
2026-07-23 N3534S - Jul 23, 21:00 UTCJul 23, 22:20 UTC1h 20m
2026-07-23 N3534S - Jul 23, 20:15 UTCJul 23, 20:30 UTC15m
2026-07-23 N3534S - Jul 23, 18:45 UTCJul 23, 19:40 UTC55m
2026-07-23 N3534S - Jul 23, 16:40 UTCJul 23, 17:55 UTC1h 15m
2026-07-22 N3534S - Jul 22, 18:05 UTCJul 22, 18:15 UTC10m
2026-07-22 N3534S - Jul 22, 14:35 UTCJul 22, 14:45 UTC10m
2026-07-22 N3534S - Jul 22, 02:40 UTCJul 22, 03:45 UTC1h 5m
2026-07-22 N3534S - Jul 22, 00:20 UTCJul 22, 01:40 UTC1h 20m
2026-07-21 N3534S - Jul 21, 19:10 UTCJul 21, 20:35 UTC1h 25m
2026-07-21 N3534S - Jul 21, 03:20 UTCJul 21, 06:20 UTC3h 0m
2026-07-20 N3534S - Jul 20, 14:45 UTCJul 20, 15:50 UTC1h 5m
2026-07-19 N3534S - Jul 19, 19:10 UTCJul 19, 19:35 UTC25m
2026-07-19 N3534S - Jul 19, 16:50 UTCJul 19, 17:15 UTC25m
2026-07-18 N3534S - Jul 18, 23:10 UTCJul 19, 00:10 UTC1h 0m
2026-07-18 N3534S - Jul 18, 20:45 UTCJul 18, 22:00 UTC1h 15m
2026-07-18 N3534S - Jul 18, 18:30 UTCJul 18, 19:20 UTC50m
2026-07-17 N3534S - Jul 17, 23:00 UTCJul 18, 02:19 UTC3h 20m
2026-07-17 N3534S - Jul 17, 19:55 UTCJul 17, 21:25 UTC1h 30m
2026-07-17 N3534S - Jul 17, 18:50 UTCJul 17, 19:25 UTC35m
2026-07-17 N3534S - Jul 17, 15:44 UTCJul 17, 16:44 UTC1h 0m
2026-07-17 N3534S - Jul 17, 01:29 UTCJul 17, 02:25 UTC55m
2026-07-16 N3534S - Jul 16, 21:05 UTCJul 16, 22:05 UTC1h 0m
2026-07-16 N3534S - Jul 16, 20:05 UTCJul 16, 20:49 UTC45m
2026-07-16 N3534S - Jul 16, 16:40 UTCJul 16, 18:10 UTC1h 30m
2026-07-16 N3534S - Jul 16, 05:05 UTCJul 16, 07:20 UTC2h 15m
2026-07-16 N3534S - Jul 16, 00:20 UTCJul 16, 02:35 UTC2h 15m
2026-07-15 N3534S - Jul 15, 18:45 UTCJul 15, 20:15 UTC1h 30m
2026-07-15 N3534S - Jul 15, 17:40 UTCJul 15, 18:05 UTC25m
2026-07-15 N3534S - Jul 15, 14:50 UTCJul 15, 15:50 UTC1h 0m
2026-07-14 N3534S - Jul 14, 23:35 UTCJul 15, 00:40 UTC1h 5m
2026-07-14 N3534S - Jul 14, 20:00 UTCJul 14, 21:20 UTC1h 20m
2026-07-14 N3534S - Jul 14, 15:55 UTCJul 14, 17:05 UTC1h 10m
2026-07-14 N3534S - Jul 14, 00:20 UTCJul 14, 01:20 UTC1h 0m
2026-07-13 N3534S - Jul 13, 22:20 UTCJul 13, 23:20 UTC1h 0m
2026-07-13 N3534S - Jul 13, 19:05 UTCJul 13, 20:15 UTC1h 10m
2026-07-13 N3534S - Jul 13, 15:50 UTCJul 13, 17:55 UTC2h 5m
2026-07-12 N3534S - Jul 12, 16:45 UTCJul 12, 18:10 UTC1h 25m
2026-07-12 N3534S - Jul 12, 03:15 UTCJul 12, 04:35 UTC1h 20m
2026-07-11 N3534S - Jul 11, 23:25 UTCJul 12, 00:40 UTC1h 15m
2026-07-11 N3534S - Jul 11, 21:10 UTCJul 11, 22:05 UTC55m
2026-07-11 N3534S - Jul 11, 18:55 UTCJul 11, 20:00 UTC1h 5m
2026-07-11 N3534S - Jul 11, 02:35 UTCJul 11, 04:30 UTC1h 55m
2026-07-10 N3534S - Jul 10, 23:10 UTCJul 11, 00:10 UTC1h 0m
2026-07-10 N3534S - Jul 10, 21:10 UTCJul 10, 22:15 UTC1h 5m
2026-07-10 N3534S - Jul 10, 18:50 UTCJul 10, 19:50 UTC1h 0m

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 N3534S page for operator, model, and routing details .

Mode-S A3F2E7 frequently asked

What is Mode-S code A3F2E7?
A3F2E7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N3534S.
Where is Mode-S A3F2E7 registered?
Mode-S code A3F2E7 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 A3F2E7 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3F2E7, octal 50771347, decimal 10,744,551.
What flights does A3F2E7 operate?
Mode-S A3F2E7 has broadcast 1 distinct callsign, including N3534S.