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sensors Mode-S transponder

A181D3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N1967S · CESSNA 172 Skyhawk · operated by FULLERTON AIRPORT PILOT ASSOCIATION

Hex
A181D3
Octal
50300723
Decimal
10,584,531
Country
US
Tail
N1967S
Type
C172
No current signal · last broadcast Jul 25, 19:05 UTC
Flights observed
255
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 19:05 UTC

Last known position

Most recent position reported by Mode-S A181D3.

Country allocation

The ICAO 24-bit address A181D3 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
N1967S - 255 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 N1967S FUL → FUL Jul 25, 18:20 UTCJul 25, 19:05 UTC45m
2026-07-24 N1967S - Jul 24, 19:45 UTCJul 24, 21:15 UTC1h 30m
2026-07-24 N1967S - Jul 24, 17:40 UTCJul 24, 18:25 UTC45m
2026-07-24 N1967S - Jul 24, 15:00 UTCJul 24, 16:25 UTC1h 25m
2026-07-24 N1967S - Jul 24, 01:20 UTCJul 24, 03:35 UTC2h 15m
2026-07-23 N1967S FUL → FUL Jul 23, 16:10 UTCJul 23, 17:30 UTC1h 20m
2026-07-22 N1967S VNY → FUL Jul 22, 22:25 UTCJul 22, 22:50 UTC25m
2026-07-22 N1967S FUL → VNY Jul 22, 21:00 UTCJul 22, 21:35 UTC35m
2026-07-22 N1967S - Jul 22, 18:10 UTCJul 22, 19:05 UTC55m
2026-07-21 N1967S FUL → FUL Jul 21, 18:15 UTCJul 21, 19:25 UTC1h 10m
2026-07-21 N1967S - Jul 21, 15:55 UTCJul 21, 16:40 UTC45m
2026-07-21 N1967S - Jul 21, 14:15 UTCJul 21, 15:00 UTC45m
2026-07-21 N1967S - Jul 21, 03:10 UTCJul 21, 04:15 UTC1h 5m
2026-07-21 N1967S - Jul 21, 00:30 UTCJul 21, 01:20 UTC50m
2026-07-20 N1967S SBA → FUL Jul 20, 22:00 UTCJul 20, 23:30 UTC1h 30m
2026-07-20 N1967S - Jul 20, 20:00 UTCJul 20, 21:20 UTC1h 20m
2026-07-20 N1967S - Jul 20, 17:00 UTCJul 20, 18:40 UTC1h 40m
2026-07-20 N1967S FUL → FUL Jul 20, 14:50 UTCJul 20, 16:00 UTC1h 10m
2026-07-20 N1967S - Jul 20, 01:30 UTCJul 20, 03:05 UTC1h 35m
2026-07-19 N1967S - Jul 19, 17:45 UTCJul 19, 18:15 UTC30m
2026-07-19 N1967S SBA → FUL Jul 19, 01:15 UTCJul 19, 02:20 UTC1h 5m
2026-07-18 N1967S - Jul 18, 21:20 UTCJul 18, 21:45 UTC25m
2026-07-18 N1967S - Jul 18, 18:45 UTCJul 18, 19:30 UTC45m
2026-07-18 N1967S FUL → FUL Jul 18, 02:35 UTCJul 18, 03:55 UTC1h 21m
2026-07-17 N1967S - Jul 17, 17:20 UTCJul 17, 17:50 UTC30m
2026-07-17 N1967S - Jul 17, 14:44 UTCJul 17, 15:25 UTC40m
2026-07-17 N1967S SBA → FUL Jul 17, 05:39 UTCJul 17, 06:50 UTC1h 10m
2026-07-17 N1967S FUL → SBA Jul 17, 02:15 UTCJul 17, 03:25 UTC1h 10m
2026-07-16 N1967S - Jul 16, 23:15 UTCJul 17, 01:29 UTC2h 15m
2026-07-16 N1967S FUL → HMT Jul 16, 22:30 UTCJul 16, 23:10 UTC40m
2026-07-16 N1967S FUL → FUL Jul 16, 19:50 UTCJul 16, 21:05 UTC1h 15m
2026-07-16 N1967S - Jul 16, 02:25 UTCJul 16, 03:50 UTC1h 25m
2026-07-15 N1967S FUL → FUL Jul 15, 23:45 UTCJul 16, 01:00 UTC1h 15m
2026-07-15 N1967S - Jul 15, 21:55 UTCJul 15, 22:40 UTC45m
2026-07-15 N1967S FUL → FUL Jul 15, 17:15 UTCJul 15, 18:20 UTC1h 5m
2026-07-14 N1967S - Jul 14, 23:20 UTCJul 15, 00:25 UTC1h 5m
2026-07-14 N1967S - Jul 14, 21:20 UTCJul 14, 22:35 UTC1h 15m
2026-07-14 N1967S FUL → FUL Jul 14, 17:55 UTCJul 14, 19:00 UTC1h 5m
2026-07-14 N1967S - Jul 14, 02:45 UTCJul 14, 03:40 UTC55m
2026-07-14 N1967S - Jul 14, 01:30 UTCJul 14, 02:05 UTC35m
2026-07-14 N1967S - Jul 14, 00:40 UTCJul 14, 01:20 UTC40m
2026-06-29 N1967S FUL → FUL Jun 29, 23:49 UTCJun 30, 00:55 UTC1h 5m
2026-06-28 N1967S FUL → FUL Jun 28, 22:34 UTCJun 29, 00:10 UTC1h 35m
2026-06-28 N1967S RAL → FUL Jun 28, 18:34 UTCJun 28, 20:09 UTC1h 35m
2026-06-28 N1967S FUL → RAL Jun 28, 17:55 UTCJun 28, 18:19 UTC25m
2026-06-27 N1967S FUL → FUL Jun 27, 19:00 UTCJun 27, 19:59 UTC1h 0m
2026-06-26 N1967S RAL → FUL Jun 26, 21:50 UTCJun 26, 22:34 UTC45m
2026-06-26 N1967S - Jun 26, 20:15 UTCJun 26, 21:35 UTC1h 20m
2026-06-26 N1967S FUL → SBA Jun 26, 16:54 UTCJun 26, 18:39 UTC1h 45m
2026-06-26 N1967S FUL → FUL Jun 26, 02:30 UTCJun 26, 04:00 UTC1h 30m

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 N1967S page for operator, model, and routing details .

Mode-S A181D3 frequently asked

What is Mode-S code A181D3?
A181D3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N1967S.
Where is Mode-S A181D3 registered?
Mode-S code A181D3 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 A181D3 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 19:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A181D3, octal 50300723, decimal 10,584,531.
What flights does A181D3 operate?
Mode-S A181D3 has broadcast 1 distinct callsign, including N1967S.