sensors Mode-S transponder

C82AA5

ICAO 24-bit transponder address · allocated to New Zealand

Currently assigned to ZK-TXA · BOEING 737-800

Hex
C82AA5
Octal
62025245
Decimal
13,118,117
Country
NZ
Tail
ZK-TXA
Type
B738
No current signal · last broadcast 20h ago
Flights observed
8
Distinct callsigns
5
Country
NZ
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S C82AA5.

Country allocation

The ICAO 24-bit address C82AA5 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 5 distinct

Callsign Airline Flights Last seen
TFX42 - 3 2026-04-13
TFX402 - 2 2026-04-13
TFX49 - 1 2026-04-13
TFX36 - 1 2026-04-13
TFX34 - 1 2026-04-14

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 TFX34 - Apr 14, 09:40 UTCApr 14, 11:05 UTC1h 25m
2026-04-13 TFX36 MEL → ADL Apr 13, 17:55 UTCApr 13, 18:55 UTC1h 0m
2026-04-13 TFX42 - Apr 13, 16:15 UTCApr 13, 17:05 UTC50m
2026-04-13 TFX42 - Apr 13, 15:50 UTCApr 13, 17:05 UTC1h 15m
2026-04-13 TFX42 - Apr 13, 15:05 UTCApr 13, 16:15 UTC1h 10m
2026-04-13 TFX402 - Apr 13, 12:20 UTCApr 13, 13:05 UTC45m
2026-04-13 TFX402 - Apr 13, 12:00 UTCApr 13, 12:15 UTC15m
2026-04-13 TFX49 - Apr 13, 10:00 UTCApr 13, 10:40 UTC40m

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-TXA page for operator, model, and routing details .

Mode-S C82AA5 frequently asked

What is Mode-S code C82AA5?
C82AA5 is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-TXA.
Where is Mode-S C82AA5 registered?
Mode-S code C82AA5 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 C82AA5 broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C82AA5, octal 62025245, decimal 13,118,117.
What flights does C82AA5 operate?
Mode-S C82AA5 has broadcast 5 distinct callsigns, including TFX42, TFX402, TFX49, TFX36, TFX34.