Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

C81D95

ICAO 24-bit transponder address · allocated to New Zealand

Currently assigned to ZK-SWG · PIPER PA-28-140/150/160/180

Hex
C81D95
Octal
62016625
Decimal
13,114,773
Country
NZ
Tail
ZK-SWG
Type
P28A
No current signal · last broadcast 17h ago
Flights observed
126
Distinct callsigns
1
Country
NZ
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S C81D95.

Country allocation

The ICAO 24-bit address C81D95 falls within the block assigned to New Zealand (NZ) by ICAO Annex 10, Volume III. Every aircraft registered in New Zealand 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
ZKSWG - 126 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ZKSWG IVC → IVC Jul 13, 21:10 UTCJul 13, 22:05 UTC55m
2026-07-09 ZKSWG IVC → IVC Jul 9, 04:25 UTCJul 9, 05:20 UTC55m
2026-07-09 ZKSWG IVC → IVC Jul 9, 00:25 UTCJul 9, 01:25 UTC1h 0m
2026-07-07 ZKSWG - Jul 7, 02:05 UTCJul 7, 02:55 UTC50m
2026-07-06 ZKSWG - Jul 6, 20:50 UTCJul 6, 21:40 UTC50m
2026-07-02 ZKSWG IVC → IVC Jul 2, 03:55 UTCJul 2, 04:45 UTC50m
2026-07-02 ZKSWG IVC → IVC Jul 2, 02:15 UTCJul 2, 02:35 UTC20m
2026-07-01 ZKSWG IVC → IVC Jul 1, 23:35 UTCJul 2, 00:20 UTC45m
2026-07-01 ZKSWG IVC → IVC Jul 1, 21:05 UTCJul 1, 22:05 UTC1h 0m
2026-07-01 ZKSWG IVC → IVC Jul 1, 04:00 UTCJul 1, 04:50 UTC50m
2026-07-01 ZKSWG - Jul 1, 00:00 UTCJul 1, 02:30 UTC2h 30m
2026-06-30 ZKSWG - Jun 30, 22:35 UTCJun 30, 23:20 UTC45m
2026-06-30 ZKSWG IVC → IVC Jun 30, 21:00 UTCJun 30, 21:55 UTC55m
2026-06-30 ZKSWG - Jun 30, 04:00 UTCJun 30, 04:45 UTC45m
2026-06-30 ZKSWG IVC → IVC Jun 30, 01:00 UTCJun 30, 02:00 UTC1h 1m
2026-06-28 ZKSWG IVC → IVC Jun 28, 22:24 UTCJun 28, 22:34 UTC10m
2026-06-26 ZKSWG IVC → IVC Jun 26, 04:30 UTCJun 26, 05:05 UTC35m
2026-06-26 ZKSWG - Jun 26, 03:05 UTCJun 26, 03:24 UTC20m
2026-06-25 ZKSWG IVC → IVC Jun 25, 22:34 UTCJun 25, 23:14 UTC40m
2026-06-25 ZKSWG - Jun 25, 20:54 UTCJun 25, 21:40 UTC45m
2026-06-23 ZKSWG IVC → IVC Jun 23, 07:29 UTCJun 23, 08:45 UTC1h 15m
2026-06-23 ZKSWG IVC → IVC Jun 23, 05:59 UTCJun 23, 06:59 UTC1h 0m
2026-06-23 ZKSWG IVC → IVC Jun 23, 04:45 UTCJun 23, 05:15 UTC30m
2026-06-23 ZKSWG - Jun 23, 02:20 UTCJun 23, 02:40 UTC20m
2026-06-23 ZKSWG - Jun 23, 01:00 UTCJun 23, 01:15 UTC15m
2026-06-23 ZKSWG - Jun 23, 00:09 UTCJun 23, 00:24 UTC15m
2026-06-22 ZKSWG - Jun 22, 05:49 UTCJun 22, 08:10 UTC2h 20m
2026-06-22 ZKSWG IVC → IVC Jun 22, 04:04 UTCJun 22, 04:54 UTC50m
2026-06-21 ZKSWG IVC → IVC Jun 21, 22:40 UTCJun 22, 00:34 UTC1h 55m
2026-06-18 ZKSWG - Jun 18, 21:00 UTCJun 18, 21:55 UTC55m
2026-06-15 ZKSWG - Jun 15, 23:25 UTCJun 16, 00:35 UTC1h 10m
2026-06-15 ZKSWG IVC → IVC Jun 15, 20:50 UTCJun 15, 21:40 UTC50m
2026-06-14 ZKSWG IVC → IVC Jun 14, 23:20 UTCJun 15, 00:29 UTC1h 10m
2026-06-12 ZKSWG - Jun 12, 02:20 UTCJun 12, 03:35 UTC1h 15m
2026-06-10 ZKSWG - Jun 10, 21:55 UTCJun 10, 23:45 UTC1h 50m
2026-06-10 ZKSWG IVC → IVC Jun 10, 04:10 UTCJun 10, 05:05 UTC55m
2026-06-10 ZKSWG IVC → IVC Jun 10, 02:50 UTCJun 10, 03:30 UTC40m
2026-06-09 ZKSWG - Jun 9, 23:50 UTCJun 10, 00:40 UTC50m
2026-06-09 ZKSWG IVC → IVC Jun 9, 22:00 UTCJun 9, 22:55 UTC55m
2026-06-05 ZKSWG - Jun 5, 01:20 UTCJun 5, 02:40 UTC1h 20m
2026-06-04 ZKSWG IVC → IVC Jun 4, 23:10 UTCJun 5, 00:05 UTC55m
2026-06-03 ZKSWG - Jun 3, 22:55 UTCJun 3, 23:50 UTC55m
2026-06-03 ZKSWG IVC → IVC Jun 3, 07:45 UTCJun 3, 08:50 UTC1h 5m
2026-06-03 ZKSWG IVC → IVC Jun 3, 05:50 UTCJun 3, 07:10 UTC1h 20m
2026-06-03 ZKSWG - Jun 3, 04:10 UTCJun 3, 05:05 UTC55m
2026-06-03 ZKSWG - Jun 3, 01:20 UTCJun 3, 03:25 UTC2h 5m
2026-06-02 ZKSWG - Jun 2, 21:55 UTCJun 2, 23:55 UTC2h 0m
2026-06-02 ZKSWG IVC → IVC Jun 2, 04:05 UTCJun 2, 04:40 UTC35m
2026-05-29 ZKSWG IVC → IVC May 29, 02:45 UTCMay 29, 04:40 UTC1h 55m
2026-05-27 ZKSWG - May 27, 23:05 UTCMay 28, 00:25 UTC1h 20m

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 ZK-SWG page for operator, model, and routing details .

Mode-S C81D95 frequently asked

What is Mode-S code C81D95?
C81D95 is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-SWG.
Where is Mode-S C81D95 registered?
Mode-S code C81D95 is allocated to New Zealand (NZ). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C81D95 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C81D95, octal 62016625, decimal 13,114,773.
What flights does C81D95 operate?
Mode-S C81D95 has broadcast 1 distinct callsign, including ZKSWG.