Apparatus

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sensors Mode-S transponder

C81E27

ICAO 24-bit transponder address · allocated to New Zealand

Currently assigned to ZK-OJR · AIRBUS A-320

Hex
C81E27
Octal
62017047
Decimal
13,114,919
Country
NZ
Tail
ZK-OJR
Type
A320
Broadcasting now · callsign ANZ412 · 25,475 ft
Flights observed
491
Distinct callsigns
20
Country
NZ
Last broadcast
Jul 26, 21:15 UTC

Current position

C81E27 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C81E27 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 20 distinct

Callsign Airline Flights Last seen
ANZ582 Air New Zealand 11 2026-07-25
ANZ567 - 11 2026-07-04
ANZ588 - 10 2026-07-16
ANZ580 Air New Zealand 9 2026-07-22
ANZ566 Air New Zealand 9 2026-07-25
ANZ547 - 9 2026-07-16
ANZ523 Air New Zealand 9 2026-07-26
ANZ425 Air New Zealand 9 2026-07-23
ANZ659 Air New Zealand 8 2026-07-24
ANZ644 Air New Zealand 8 2026-07-24
ANZ613 Air New Zealand 8 2026-07-23
ANZ573 Air New Zealand 8 2026-07-25
ANZ558 - 8 2026-07-16
ANZ534 - 8 2026-07-20
ANZ402 Air New Zealand 8 2026-07-26
ANZ327 Air New Zealand 8 2026-07-24
ANZ612 Air New Zealand 7 2026-07-23
ANZ555 - 7 2026-07-17
ANZ543 Air New Zealand 7 2026-07-24
ANZ542 - 7 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ANZ523 AKL → CHC Jul 26, 20:05 UTCJul 26, 21:15 UTC1h 10m
2026-07-26 ANZ402 WLG → AKL Jul 26, 18:05 UTCJul 26, 18:50 UTC45m
2026-07-26 ANZ461 AKL → WLG Jul 26, 09:50 UTCJul 26, 10:40 UTC50m
2026-07-26 ANZ570 CHC → AKL Jul 26, 07:55 UTCJul 26, 08:55 UTC1h 0m
2026-07-26 ANZ325 HLZ → CHC Jul 26, 05:10 UTCJul 26, 06:10 UTC1h 0m
2026-07-26 ANZ324 CHC → HLZ Jul 26, 03:10 UTCJul 26, 04:10 UTC1h 0m
2026-07-26 ANZ541 AKL → CHC Jul 26, 00:50 UTCJul 26, 02:00 UTC1h 10m
2026-07-25 ANZ420 WLG → AKL Jul 25, 23:00 UTCJul 25, 23:45 UTC45m
2026-07-25 ANZ413 AKL → WLG Jul 25, 21:20 UTCJul 25, 22:05 UTC45m
2026-07-25 ANZ582 CHC → AKL Jul 25, 18:10 UTCJul 25, 19:15 UTC1h 5m
2026-07-25 ANZ573 AKL → CHC Jul 25, 08:50 UTCJul 25, 09:55 UTC1h 5m
2026-07-25 ANZ566 CHC → AKL Jul 25, 06:20 UTCJul 25, 07:20 UTC1h 0m
2026-07-25 ANZ323 HLZ → CHC Jul 25, 02:35 UTCJul 25, 03:40 UTC1h 5m
2026-07-25 ANZ322 CHC → HLZ Jul 25, 00:35 UTCJul 25, 01:35 UTC1h 0m
2026-07-24 ANZ644 ZQN → AKL Jul 24, 22:50 UTCJul 24, 23:30 UTC40m
2026-07-24 ANZ659 CHC → ZQN Jul 24, 21:20 UTCJul 24, 21:45 UTC25m
2026-07-24 ANZ327 WLG → CHC Jul 24, 19:15 UTCJul 24, 19:50 UTC35m
2026-07-24 ANZ461 AKL → WLG Jul 24, 10:20 UTCJul 24, 11:05 UTC45m
2026-07-24 ANZ570 CHC → AKL Jul 24, 07:25 UTCJul 24, 08:40 UTC1h 15m
2026-07-24 ANZ325 HLZ → CHC Jul 24, 05:20 UTCJul 24, 06:20 UTC1h 0m
2026-07-24 ANZ324 CHC → HLZ Jul 24, 03:30 UTCJul 24, 04:35 UTC1h 5m
2026-07-24 ANZ543 AKL → CHC Jul 24, 01:30 UTCJul 24, 02:30 UTC1h 0m
2026-07-23 ANZ612 ZQN → AKL Jul 23, 22:55 UTCJul 24, 00:25 UTC1h 30m
2026-07-23 ANZ613 AKL → ZQN Jul 23, 20:05 UTCJul 23, 21:35 UTC1h 30m
2026-07-23 ANZ582 CHC → AKL Jul 23, 17:55 UTCJul 23, 19:00 UTC1h 5m
2026-07-23 ANZ573 AKL → CHC Jul 23, 09:20 UTCJul 23, 10:25 UTC1h 5m
2026-07-23 ANZ450 WLG → AKL Jul 23, 07:20 UTCJul 23, 08:05 UTC45m
2026-07-23 ANZ443 AKL → WLG Jul 23, 04:45 UTCJul 23, 05:35 UTC50m
2026-07-23 ANZ432 WLG → AKL Jul 23, 02:35 UTCJul 23, 03:25 UTC50m
2026-07-23 ANZ425 AKL → WLG Jul 23, 00:45 UTCJul 23, 01:35 UTC50m
2026-07-22 ANZ580 CHC → AKL Jul 22, 22:25 UTCJul 22, 23:40 UTC1h 15m
2026-07-22 ANZ523 AKL → CHC Jul 22, 20:25 UTCJul 22, 21:35 UTC1h 10m
2026-07-22 ANZ402 WLG → AKL Jul 22, 18:15 UTCJul 22, 19:10 UTC55m
2026-07-22 ANZ429 AKL → WLG Jul 22, 01:15 UTCJul 22, 02:05 UTC50m
2026-07-21 ANZ612 ZQN → AKL Jul 21, 22:50 UTCJul 22, 00:05 UTC1h 15m
2026-07-21 ANZ613 - Jul 21, 21:35 UTCJul 21, 21:50 UTC15m
2026-07-21 ANZ613 - Jul 21, 20:15 UTCJul 21, 21:05 UTC50m
2026-07-21 ANZ582 - Jul 21, 18:00 UTCJul 21, 19:00 UTC1h 0m
2026-07-21 ANZ325 HLZ → CHC Jul 21, 03:45 UTCJul 21, 04:50 UTC1h 5m
2026-07-21 ANZ324 CHC → HLZ Jul 21, 01:35 UTCJul 21, 02:35 UTC1h 0m
2026-07-20 ANZ535 - Jul 20, 23:10 UTCJul 21, 00:25 UTC1h 15m
2026-07-20 ANZ534 - Jul 20, 20:35 UTCJul 20, 21:35 UTC1h 0m
2026-07-20 ANZ515 - Jul 20, 18:25 UTCJul 20, 19:30 UTC1h 5m
2026-07-20 ANZ674 DUD → AKL Jul 20, 07:50 UTCJul 20, 09:15 UTC1h 25m
2026-07-20 ANZ677 AKL → DUD Jul 20, 05:20 UTCJul 20, 06:55 UTC1h 35m
2026-07-20 ANZ620 - Jul 20, 01:35 UTCJul 20, 02:50 UTC1h 15m
2026-07-19 ANZ617 AKL → ZQN Jul 19, 22:55 UTCJul 20, 00:30 UTC1h 35m
2026-07-19 ANZ534 - Jul 19, 20:45 UTCJul 19, 21:45 UTC1h 0m
2026-07-19 ANZ515 - Jul 19, 18:15 UTCJul 19, 19:20 UTC1h 5m
2026-07-19 ANZ456 - Jul 19, 08:05 UTCJul 19, 08:45 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-OJR page for operator, model, and routing details .

Mode-S C81E27 frequently asked

What is Mode-S code C81E27?
C81E27 is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-OJR.
Where is Mode-S C81E27 registered?
Mode-S code C81E27 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 C81E27 broadcasting right now?
Yes. Mode-S C81E27 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C81E27, octal 62017047, decimal 13,114,919.
What flights does C81E27 operate?
Mode-S C81E27 has broadcast 20 distinct callsigns, including ANZ582, ANZ567, ANZ588, ANZ580, ANZ566.