sensors Mode-S transponder

C820D4

ICAO 24-bit transponder address · allocated to New Zealand

Currently assigned to ZK-NZG · BOEING 787-9 Dreamliner

Hex
C820D4
Octal
62020324
Decimal
13,115,604
Country
NZ
Tail
ZK-NZG
Type
B789
No current signal · last broadcast 10h ago
Flights observed
109
Distinct callsigns
20
Country
NZ
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S C820D4.

Country allocation

The ICAO 24-bit address C820D4 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ANZ8 AKL → SFO May 29, 08:30 UTCMay 29, 20:10 UTC11h 40m
2026-05-28 ANZ945 RAR → AKL May 28, 21:05 UTCMay 29, 06:10 UTC9h 5m
2026-05-28 ANZ176 PER → AKL May 28, 12:05 UTCMay 28, 17:50 UTC5h 45m
2026-05-28 ANZ175 AKL → PER May 28, 00:55 UTCMay 28, 07:50 UTC6h 55m
2026-05-27 ANZ7 SFO → AKL May 27, 17:20 UTCMay 27, 18:05 UTC45m
2026-05-27 ANZ7 SFO → AKL May 27, 05:35 UTCMay 27, 05:59 UTC25m
2026-05-26 ANZ8 AKL → SFO May 26, 08:19 UTCMay 26, 19:45 UTC11h 25m
2026-05-25 ANZ945 RAR → AKL May 25, 20:59 UTCMay 26, 05:59 UTC9h 0m
2026-05-25 ANZ7 SFO → AKL May 25, 05:35 UTCMay 25, 17:45 UTC12h 10m
2026-05-24 ANZ8 AKL → SFO May 24, 08:15 UTCMay 24, 19:15 UTC11h 0m
2026-05-23 ANZ993 APW → AKL May 23, 21:10 UTCMay 24, 05:50 UTC8h 40m
2026-05-23 ANZ7 SFO → AKL May 23, 05:35 UTCMay 23, 17:55 UTC12h 20m
2026-05-22 ANZ8 AKL → SFO May 22, 08:05 UTCMay 22, 19:05 UTC11h 0m
2026-05-22 ANZ146 BNE → AKL May 22, 02:40 UTCMay 22, 05:25 UTC2h 45m
2026-05-21 ANZ145 AKL → BNE May 21, 21:40 UTCMay 22, 00:45 UTC3h 5m
2026-05-21 ANZ7 SFO → AKL May 21, 05:35 UTCMay 21, 18:05 UTC12h 30m
2026-05-20 ANZ8 AKL → SFO May 20, 08:15 UTCMay 20, 19:25 UTC11h 10m
2026-05-19 ANZ78 TPE → AKL May 19, 10:50 UTCMay 19, 21:25 UTC10h 35m
2026-05-18 ANZ77 AKL → TPE May 18, 21:55 UTCMay 19, 08:55 UTC11h 0m
2026-05-18 ANZ144 BNE → AKL May 18, 07:30 UTCMay 18, 10:10 UTC2h 40m
2026-05-18 ANZ143 AKL → BNE May 18, 02:35 UTCMay 18, 05:45 UTC3h 10m
2026-05-17 ANZ80 HKG → AKL May 17, 13:10 UTCMay 17, 22:15 UTC9h 5m
2026-05-17 ANZ80 HKG → AKL May 17, 12:01 UTCMay 17, 12:15 UTC15m
2026-05-16 ANZ81 AKL → HKG May 16, 22:35 UTCMay 17, 09:30 UTC10h 55m
2026-05-16 ANZ288 PVG → AKL May 16, 16:55 UTCMay 16, 17:30 UTC35m
2026-05-15 ANZ288 PVG → AKL May 15, 21:50 UTCMay 16, 17:30 UTC19h 41m
2026-05-15 ANZ289 AKL → PVG May 15, 11:40 UTCMay 15, 22:10 UTC10h 29m
2026-05-14 ANZ953 NAN → AKL May 14, 22:10 UTCMay 15, 08:10 UTC10h 0m
2026-05-14 ANZ23 YVR → AKL May 14, 04:30 UTCMay 14, 17:55 UTC13h 25m
2026-05-13 ANZ24 AKL → YVR May 13, 08:35 UTCMay 13, 20:50 UTC12h 15m
2026-05-12 ANZ80 HKG → AKL May 12, 12:40 UTCMay 12, 21:40 UTC9h 0m
2026-05-12 ANZ80 HKG → AKL May 12, 11:40 UTCMay 12, 11:55 UTC15m
2026-05-12 ANZ81 AKL → HKG May 12, 07:25 UTCMay 12, 09:25 UTC2h 0m
2026-05-11 ANZ7 SFO → AKL May 11, 17:10 UTCMay 11, 17:55 UTC45m
2026-05-11 ANZ7 SFO → AKL May 11, 05:35 UTCMay 11, 05:55 UTC20m
2026-05-10 ANZ8 AKL → SFO May 10, 08:40 UTCMay 10, 20:09 UTC11h 30m
2026-05-09 ANZ953 NAN → AKL May 9, 22:20 UTCMay 10, 05:25 UTC7h 5m
2026-05-09 ANZ176 PER → AKL May 9, 12:00 UTCMay 9, 18:15 UTC6h 15m
2026-05-09 ANZ175 AKL → PER May 9, 01:10 UTCMay 9, 07:35 UTC6h 25m
2026-05-08 ANZ80 HKG → AKL May 8, 11:49 UTCMay 8, 21:35 UTC9h 45m
2026-05-07 ANZ81 AKL → HKG May 7, 22:45 UTCMay 8, 09:49 UTC11h 5m
2026-05-07 ANZ176 PER → AKL May 7, 12:00 UTCMay 7, 18:05 UTC6h 5m
2026-05-07 ANZ175 AKL → PER May 7, 02:05 UTCMay 7, 08:35 UTC6h 30m
2026-05-06 ANZ80 HKG → AKL May 6, 11:50 UTCMay 6, 21:35 UTC9h 44m
2026-05-06 ANZ81 AKL → HKG May 6, 09:20 UTCMay 6, 09:35 UTC15m
2026-05-05 ANZ81 AKL → HKG May 5, 22:40 UTCMay 6, 08:50 UTC10h 10m
2026-05-05 ANZ23 YVR → AKL May 5, 04:10 UTCMay 5, 17:15 UTC13h 5m
2026-05-04 ANZ24 AKL → YVR May 4, 08:30 UTCMay 4, 21:05 UTC12h 36m
2026-05-04 ANZ104 SYD → AKL May 4, 02:50 UTCMay 4, 05:20 UTC2h 30m
2026-05-03 ANZ103 AKL → SYD May 3, 21:29 UTCMay 4, 00:25 UTC2h 55m

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

Mode-S C820D4 frequently asked

What is Mode-S code C820D4?
C820D4 is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-NZG.
Where is Mode-S C820D4 registered?
Mode-S code C820D4 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 C820D4 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C820D4, octal 62020324, decimal 13,115,604.
What flights does C820D4 operate?
Mode-S C820D4 has broadcast 20 distinct callsigns, including ANZ8, ANZ7, ANZ81, ANZ80, ANZ24.