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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 8h ago
Flights observed
217
Distinct callsigns
1
Country
US
Last broadcast
8h ago

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 - 217 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-06-25 N1967S - Jun 25, 23:39 UTCJun 26, 00:50 UTC1h 10m
2026-06-25 N1967S - Jun 25, 21:40 UTCJun 25, 22:39 UTC1h 0m
2026-06-25 N1967S FUL → FUL Jun 25, 16:55 UTCJun 25, 18:29 UTC1h 35m
2026-06-25 N1967S FUL → FUL Jun 25, 03:34 UTCJun 25, 04:40 UTC1h 5m
2026-06-24 N1967S FUL → FUL Jun 24, 18:29 UTCJun 24, 19:15 UTC45m
2026-06-24 N1967S - Jun 24, 13:44 UTCJun 24, 15:14 UTC1h 30m
2026-06-24 N1967S - Jun 24, 00:55 UTCJun 24, 02:05 UTC1h 10m
2026-06-23 N1967S - Jun 23, 22:49 UTCJun 23, 23:59 UTC1h 10m
2026-06-23 N1967S FUL → FUL Jun 23, 20:54 UTCJun 23, 21:59 UTC1h 5m
2026-06-23 N1967S - Jun 23, 17:39 UTCJun 23, 19:39 UTC2h 0m
2026-06-23 N1967S FUL → FUL Jun 23, 01:20 UTCJun 23, 02:04 UTC45m
2026-06-22 N1967S - Jun 22, 23:29 UTCJun 23, 00:39 UTC1h 10m
2026-06-22 N1967S - Jun 22, 18:00 UTCJun 22, 19:14 UTC1h 15m
2026-06-20 N1967S FUL → FUL Jun 20, 23:19 UTCJun 21, 00:40 UTC1h 20m
2026-06-20 N1967S FUL → FUL Jun 20, 17:49 UTCJun 20, 19:04 UTC1h 15m
2026-06-20 N1967S - Jun 20, 03:24 UTCJun 20, 04:44 UTC1h 20m
2026-06-20 N1967S - Jun 20, 00:29 UTCJun 20, 00:59 UTC30m
2026-06-19 N1967S FUL → RBK Jun 19, 22:30 UTCJun 19, 23:09 UTC40m
2026-06-19 N1967S - Jun 19, 18:54 UTCJun 19, 19:54 UTC1h 0m
2026-06-19 N1967S FUL → FUL Jun 19, 04:39 UTCJun 19, 05:40 UTC1h 0m
2026-06-18 N1967S - Jun 18, 20:40 UTCJun 18, 21:30 UTC50m
2026-06-18 N1967S FUL → FUL Jun 18, 18:00 UTCJun 18, 18:50 UTC50m
2026-06-17 N1967S - Jun 17, 19:50 UTCJun 17, 20:25 UTC35m
2026-06-17 N1967S - Jun 17, 18:40 UTCJun 17, 19:15 UTC35m
2026-06-16 N1967S FUL → FUL Jun 16, 21:45 UTCJun 16, 22:40 UTC55m
2026-06-16 N1967S - Jun 16, 18:15 UTCJun 16, 19:10 UTC55m
2026-06-16 N1967S FUL → FUL Jun 16, 16:15 UTCJun 16, 17:15 UTC1h 0m
2026-06-16 N1967S - Jun 16, 00:20 UTCJun 16, 01:40 UTC1h 20m
2026-06-15 N1967S - Jun 15, 22:35 UTCJun 15, 23:25 UTC50m
2026-06-14 N1967S - Jun 14, 15:50 UTCJun 14, 18:30 UTC2h 40m
2026-06-13 N1967S FUL → FUL Jun 13, 23:00 UTCJun 13, 23:45 UTC45m
2026-06-13 N1967S - Jun 13, 21:15 UTCJun 13, 21:55 UTC40m
2026-06-13 N1967S - Jun 13, 18:50 UTCJun 13, 19:40 UTC50m
2026-06-13 N1967S RBK → FUL Jun 13, 00:55 UTCJun 13, 01:30 UTC35m
2026-06-12 N1967S RBK → RBK Jun 12, 23:35 UTCJun 13, 00:20 UTC45m
2026-06-12 N1967S - Jun 12, 22:20 UTCJun 12, 22:55 UTC35m
2026-06-12 N1967S FUL → FUL Jun 12, 20:30 UTCJun 12, 21:20 UTC50m
2026-06-12 N1967S FUL → FUL Jun 12, 16:55 UTCJun 12, 18:55 UTC2h 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 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 8h ago.
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.