Apparatus

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sensors Mode-S transponder

C81D8E

ICAO 24-bit transponder address · allocated to New Zealand

Currently assigned to ZK-OAB · AIRBUS A-320

Hex
C81D8E
Octal
62016616
Decimal
13,114,766
Country
NZ
Tail
ZK-OAB
Type
A320
Broadcasting now · callsign ANZ441 · 25,025 ft
Flights observed
61
Distinct callsigns
20
Country
NZ
Last broadcast
1h ago

Current position

C81D8E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C81D8E 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
ANZ613 Air New Zealand 3 2026-04-22
ANZ690 Air New Zealand 2 2026-04-17
ANZ689 Air New Zealand 2 2026-04-17
ANZ676 Air New Zealand 2 2026-04-16
ANZ612 Air New Zealand 2 2026-04-23
ANZ555 Air New Zealand 2 2026-04-25
ANZ548 Air New Zealand 2 2026-04-24
ANZ519 Air New Zealand 2 2026-04-24
ANZ456 Air New Zealand 2 2026-04-24
ANZ450 Air New Zealand 2 2026-04-17
ANZ699 Air New Zealand 1 2026-04-19
ANZ698 Air New Zealand 1 2026-04-20
ANZ686 Air New Zealand 1 2026-04-15
ANZ681 Air New Zealand 1 2026-04-15
ANZ675 Air New Zealand 1 2026-04-19
ANZ673 Air New Zealand 1 2026-04-16
ANZ660 Air New Zealand 1 2026-04-19
ANZ630 Air New Zealand 1 2026-04-24
ANZ6206 Air New Zealand 1 2026-04-25
ANZ620 Air New Zealand 1 2026-04-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-04-26 ANZ620 ZQN → AKL Apr 26, 01:25 UTCApr 26, 02:50 UTC1h 25m
2026-04-25 ANZ617 AKL → ZQN Apr 25, 22:40 UTCApr 26, 00:05 UTC1h 25m
2026-04-25 ANZ6206 ZQN → AKL Apr 25, 06:15 UTCApr 25, 07:25 UTC1h 10m
2026-04-25 ANZ555 AKL → CHC Apr 25, 04:15 UTCApr 25, 05:25 UTC1h 10m
2026-04-25 ANZ546 CHC → AKL Apr 25, 01:35 UTCApr 25, 02:40 UTC1h 5m
2026-04-24 ANZ535 AKL → CHC Apr 24, 23:20 UTCApr 25, 00:30 UTC1h 10m
2026-04-24 ANZ548 CHC → AKL Apr 24, 21:20 UTCApr 24, 22:25 UTC1h 5m
2026-04-24 ANZ519 AKL → CHC Apr 24, 19:05 UTCApr 24, 20:15 UTC1h 10m
2026-04-24 ANZ456 WLG → AKL Apr 24, 07:55 UTCApr 24, 08:40 UTC45m
2026-04-24 ANZ449 AKL → WLG Apr 24, 06:10 UTCApr 24, 06:55 UTC45m
2026-04-24 ANZ630 ZQN → AKL Apr 24, 02:35 UTCApr 24, 04:00 UTC1h 25m
2026-04-23 ANZ619 AKL → ZQN Apr 23, 23:55 UTCApr 24, 01:05 UTC1h 10m
2026-04-23 ANZ612 ZQN → AKL Apr 23, 00:20 UTCApr 23, 01:50 UTC1h 30m
2026-04-22 ANZ613 AKL → ZQN Apr 22, 20:15 UTCApr 22, 21:45 UTC1h 30m
2026-04-22 ANZ570 CHC → AKL Apr 22, 07:15 UTCApr 22, 08:20 UTC1h 5m
2026-04-22 ANZ559 AKL → CHC Apr 22, 05:01 UTCApr 22, 06:05 UTC1h 5m
2026-04-22 ANZ550 CHC → AKL Apr 22, 02:25 UTCApr 22, 03:30 UTC1h 5m
2026-04-22 ANZ539 AKL → CHC Apr 22, 00:10 UTCApr 22, 01:20 UTC1h 10m
2026-04-21 ANZ548 CHC → AKL Apr 21, 21:45 UTCApr 21, 22:50 UTC1h 5m
2026-04-21 ANZ519 AKL → CHC Apr 21, 19:35 UTCApr 21, 20:40 UTC1h 5m
2026-04-21 ANZ448 WLG → AKL Apr 21, 07:10 UTCApr 21, 07:55 UTC45m
2026-04-21 ANZ441 AKL → WLG Apr 21, 05:15 UTCApr 21, 06:05 UTC50m
2026-04-21 ANZ424 WLG → AKL Apr 21, 02:10 UTCApr 21, 02:55 UTC45m
2026-04-20 ANZ417 AKL → WLG Apr 20, 23:45 UTCApr 21, 00:35 UTC50m
2026-04-20 ANZ406 WLG → AKL Apr 20, 18:50 UTCApr 20, 19:55 UTC1h 5m
2026-04-20 ANZ461 AKL → WLG Apr 20, 09:45 UTCApr 20, 10:35 UTC50m
2026-04-20 ANZ566 CHC → AKL Apr 20, 06:40 UTCApr 20, 07:50 UTC1h 10m
2026-04-20 ANZ555 AKL → CHC Apr 20, 04:20 UTCApr 20, 05:25 UTC1h 5m
2026-04-20 ANZ698 IVC → AKL Apr 20, 00:35 UTCApr 20, 02:20 UTC1h 45m
2026-04-19 ANZ699 AKL → IVC Apr 19, 21:50 UTCApr 19, 23:30 UTC1h 40m
2026-04-19 ANZ410 WLG → AKL Apr 19, 20:00 UTCApr 19, 20:50 UTC50m
2026-04-19 ANZ401 AKL → WLG Apr 19, 18:20 UTCApr 19, 19:05 UTC45m
2026-04-19 ANZ572 CHC → AKL Apr 19, 08:40 UTCApr 19, 09:50 UTC1h 10m
2026-04-19 ANZ561 AKL → CHC Apr 19, 06:25 UTCApr 19, 07:30 UTC1h 5m
2026-04-19 ANZ660 DUD → AKL Apr 19, 03:35 UTCApr 19, 05:15 UTC1h 40m
2026-04-19 ANZ675 AKL → DUD Apr 19, 01:10 UTCApr 19, 02:35 UTC1h 25m
2026-04-18 ANZ1210 ZQN → WLG Apr 18, 22:15 UTCApr 18, 23:50 UTC1h 35m
2026-04-18 ANZ1225 AKL → ZQN Apr 18, 19:20 UTCApr 18, 20:45 UTC1h 25m
2026-04-18 ANZ456 WLG → AKL Apr 18, 08:00 UTCApr 18, 08:50 UTC50m
2026-04-18 ANZ445 AKL → WLG Apr 18, 05:25 UTCApr 18, 06:10 UTC45m
2026-04-17 ANZ612 ZQN → AKL Apr 17, 23:25 UTCApr 18, 01:05 UTC1h 40m
2026-04-17 ANZ613 AKL → ZQN Apr 17, 21:30 UTCApr 17, 22:10 UTC40m
2026-04-17 ANZ613 AKL → ZQN Apr 17, 20:20 UTCApr 17, 20:45 UTC25m
2026-04-17 ANZ450 WLG → AKL Apr 17, 07:20 UTCApr 17, 07:35 UTC15m
2026-04-17 ANZ450 WLG → AKL Apr 17, 06:50 UTCApr 17, 07:15 UTC25m
2026-04-17 ANZ690 DUD → WLG Apr 17, 05:20 UTCApr 17, 05:45 UTC25m
2026-04-17 ANZ690 DUD → WLG Apr 17, 04:45 UTCApr 17, 05:15 UTC30m
2026-04-17 ANZ689 WLG → DUD Apr 17, 03:20 UTCApr 17, 03:50 UTC30m
2026-04-17 ANZ689 WLG → DUD Apr 17, 02:40 UTCApr 17, 03:15 UTC35m
2026-04-17 ANZ425 AKL → WLG Apr 17, 00:35 UTCApr 17, 01:15 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-OAB page for operator, model, and routing details .

Mode-S C81D8E frequently asked

What is Mode-S code C81D8E?
C81D8E is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-OAB.
Where is Mode-S C81D8E registered?
Mode-S code C81D8E 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 C81D8E broadcasting right now?
Yes. Mode-S C81D8E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C81D8E, octal 62016616, decimal 13,114,766.
What flights does C81D8E operate?
Mode-S C81D8E has broadcast 20 distinct callsigns, including ANZ613, ANZ690, ANZ689, ANZ676, ANZ612.