Apparatus

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sensors Mode-S transponder

A61AF2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N49276 · CESSNA 152 · operated by HILLSBORO AERO ACADEMY LLC

Hex
A61AF2
Octal
51415362
Decimal
10,885,874
Country
US
Tail
N49276
Type
C152
No current signal · last broadcast 8h ago
Flights observed
160
Distinct callsigns
1
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S A61AF2.

Country allocation

The ICAO 24-bit address A61AF2 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
N49276 - 160 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 N49276 - Jul 13, 23:45 UTCJul 14, 01:30 UTC1h 45m
2026-07-13 N49276 - Jul 13, 20:15 UTCJul 13, 22:05 UTC1h 50m
2026-07-13 N49276 HIO → HIO Jul 13, 14:30 UTCJul 13, 15:50 UTC1h 20m
2026-07-13 N49276 - Jul 13, 00:01 UTCJul 13, 01:40 UTC1h 40m
2026-07-12 N49276 - Jul 12, 22:00 UTCJul 12, 22:50 UTC50m
2026-07-09 N49276 HIO → HIO Jul 9, 21:40 UTCJul 9, 23:10 UTC1h 30m
2026-07-07 N49276 - Jul 7, 20:20 UTCJul 7, 21:40 UTC1h 20m
2026-07-07 N49276 - Jul 7, 18:00 UTCJul 7, 19:30 UTC1h 30m
2026-07-07 N49276 - Jul 7, 15:40 UTCJul 7, 17:05 UTC1h 25m
2026-07-06 N49276 - Jul 6, 23:20 UTCJul 7, 00:05 UTC45m
2026-07-06 N49276 HIO → HIO Jul 6, 20:35 UTCJul 6, 21:40 UTC1h 5m
2026-07-06 N49276 - Jul 6, 16:00 UTCJul 6, 17:45 UTC1h 45m
2026-07-06 N49276 HIO → CVO Jul 6, 14:20 UTCJul 6, 15:15 UTC55m
2026-07-05 N49276 - Jul 5, 20:05 UTCJul 5, 21:40 UTC1h 35m
2026-07-04 N49276 HIO → HIO Jul 4, 21:00 UTCJul 4, 21:40 UTC40m
2026-07-04 N49276 - Jul 4, 03:40 UTCJul 4, 04:40 UTC1h 0m
2026-07-04 N49276 - Jul 4, 00:25 UTCJul 4, 03:15 UTC2h 50m
2026-07-03 N49276 - Jul 3, 22:30 UTCJul 3, 23:30 UTC1h 0m
2026-07-03 N49276 HIO → HIO Jul 3, 20:45 UTCJul 3, 21:45 UTC1h 0m
2026-07-03 N49276 - Jul 3, 16:20 UTCJul 3, 17:45 UTC1h 25m
2026-07-03 N49276 - Jul 3, 00:30 UTCJul 3, 03:25 UTC2h 55m
2026-07-02 N49276 - Jul 2, 20:45 UTCJul 2, 21:55 UTC1h 10m
2026-07-02 N49276 HIO → HIO Jul 2, 18:00 UTCJul 2, 19:35 UTC1h 35m
2026-07-01 N49276 HIO → HIO Jul 1, 19:25 UTCJul 1, 20:40 UTC1h 15m
2026-07-01 N49276 - Jul 1, 17:00 UTCJul 1, 17:30 UTC30m
2026-07-01 N49276 - Jul 1, 01:45 UTCJul 1, 04:10 UTC2h 25m
2026-06-30 N49276 - Jun 30, 23:50 UTCJul 1, 00:40 UTC50m
2026-06-28 N49276 - Jun 28, 22:20 UTCJun 28, 22:39 UTC20m
2026-06-25 N49276 - Jun 25, 23:34 UTCJun 26, 00:24 UTC50m
2026-06-25 N49276 - Jun 25, 21:10 UTCJun 25, 22:14 UTC1h 5m
2026-06-25 N49276 - Jun 25, 19:49 UTCJun 25, 20:39 UTC50m
2026-06-24 N49276 - Jun 24, 23:20 UTCJun 25, 00:49 UTC1h 30m
2026-06-24 N49276 - Jun 24, 17:45 UTCJun 24, 20:09 UTC2h 25m
2026-06-24 N49276 HIO → HIO Jun 24, 15:29 UTCJun 24, 16:45 UTC1h 15m
2026-06-24 N49276 HIO → HIO Jun 24, 13:20 UTCJun 24, 14:45 UTC1h 25m
2026-06-24 N49276 - Jun 24, 01:09 UTCJun 24, 01:49 UTC40m
2026-06-23 N49276 - Jun 23, 21:34 UTCJun 23, 22:55 UTC1h 20m
2026-06-23 N49276 - Jun 23, 18:45 UTCJun 23, 20:19 UTC1h 35m
2026-06-23 N49276 - Jun 23, 01:20 UTCJun 23, 02:34 UTC1h 15m
2026-06-22 N49276 HIO → PWT Jun 22, 23:05 UTCJun 23, 00:35 UTC1h 30m
2026-06-22 N49276 CVO → HIO Jun 22, 19:54 UTCJun 22, 21:45 UTC1h 50m
2026-06-22 N49276 - Jun 22, 18:04 UTCJun 22, 19:00 UTC55m
2026-06-21 N49276 HIO → HIO Jun 21, 23:00 UTCJun 21, 23:14 UTC15m
2026-06-21 N49276 HIO → HIO Jun 21, 22:00 UTCJun 21, 22:20 UTC20m
2026-06-21 N49276 - Jun 21, 19:39 UTCJun 21, 20:14 UTC35m
2026-06-21 N49276 - Jun 21, 00:45 UTCJun 21, 02:04 UTC1h 20m
2026-06-20 N49276 - Jun 20, 22:45 UTCJun 20, 22:54 UTC10m
2026-06-20 N49276 - Jun 20, 22:14 UTCJun 20, 22:30 UTC15m
2026-06-20 N49276 - Jun 20, 21:14 UTCJun 20, 21:40 UTC25m
2026-06-20 N49276 - Jun 20, 03:59 UTCJun 20, 05:04 UTC1h 5m

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 N49276 page for operator, model, and routing details .

Mode-S A61AF2 frequently asked

What is Mode-S code A61AF2?
A61AF2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N49276.
Where is Mode-S A61AF2 registered?
Mode-S code A61AF2 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 A61AF2 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 A61AF2, octal 51415362, decimal 10,885,874.
What flights does A61AF2 operate?
Mode-S A61AF2 has broadcast 1 distinct callsign, including N49276.