Apparatus

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sensors Mode-S transponder

C821BA

ICAO 24-bit transponder address · allocated to New Zealand

Currently assigned to ZK-MVE · ATR-72-600

Hex
C821BA
Octal
62020672
Decimal
13,115,834
Country
NZ
Tail
ZK-MVE
Type
AT76
No current signal · last broadcast 1h ago
Flights observed
293
Distinct callsigns
20
Country
NZ
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S C821BA.

Country allocation

The ICAO 24-bit address C821BA 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
ANZ177M - 6 2026-07-13
ANZ629M Air New Zealand 5 2026-05-18
ANZ328M - 5 2026-07-06
ANZ002M Air New Zealand 5 2026-05-06
ANZ822M Air New Zealand 4 2026-05-20
ANZ815M Air New Zealand 4 2026-05-20
ANZ369M Air New Zealand 4 2026-05-01
ANZ363M Air New Zealand 4 2026-05-20
ANZ178M - 4 2026-07-13
ANZ013M Air New Zealand 4 2026-05-05
ANZ010M Air New Zealand 4 2026-05-05
ANZ777M - 3 2026-07-07
ANZ776M Air New Zealand 3 2026-04-23
ANZ717M - 3 2026-07-14
ANZ714M - 3 2026-07-14
ANZ704M - 3 2026-07-05
ANZ703M - 3 2026-07-05
ANZ655M - 3 2026-07-09
ANZ625M Air New Zealand 3 2026-05-22
ANZ616M Air New Zealand 3 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ANZ701M - Jul 14, 07:05 UTCJul 14, 08:15 UTC1h 10m
2026-07-14 ANZ714M - Jul 14, 04:45 UTCJul 14, 05:50 UTC1h 5m
2026-07-14 ANZ717M - Jul 14, 02:50 UTCJul 14, 04:05 UTC1h 15m
2026-07-13 ANZ177M - Jul 13, 23:45 UTCJul 14, 00:50 UTC1h 5m
2026-07-13 ANZ178M - Jul 13, 22:00 UTCJul 13, 23:00 UTC1h 0m
2026-07-13 ANZ771M - Jul 13, 18:30 UTCJul 13, 20:05 UTC1h 35m
2026-07-13 ANZ023M - Jul 13, 08:40 UTCJul 13, 09:30 UTC50m
2026-07-13 ANZ210M - Jul 13, 05:25 UTCJul 13, 06:40 UTC1h 15m
2026-07-13 ANZ209M - Jul 13, 03:40 UTCJul 13, 04:45 UTC1h 5m
2026-07-12 ANZ012M - Jul 12, 23:50 UTCJul 13, 00:45 UTC55m
2026-07-12 ANZ005M - Jul 12, 22:15 UTCJul 12, 23:05 UTC50m
2026-07-12 ANZ032M - Jul 12, 20:05 UTCJul 12, 20:50 UTC45m
2026-07-12 ANZ031M - Jul 12, 18:50 UTCJul 12, 19:25 UTC35m
2026-07-12 ANZ040M - Jul 12, 08:30 UTCJul 12, 09:05 UTC35m
2026-07-12 ANZ051M - Jul 12, 07:15 UTCJul 12, 07:50 UTC35m
2026-07-12 ANZ142M - Jul 12, 05:50 UTCJul 12, 06:20 UTC30m
2026-07-12 ANZ141M - Jul 12, 04:45 UTCJul 12, 05:10 UTC25m
2026-07-11 ANZ012M - Jul 11, 23:55 UTCJul 12, 00:50 UTC55m
2026-07-11 ANZ005M - Jul 11, 22:20 UTCJul 11, 23:05 UTC45m
2026-07-11 ANZ120M - Jul 11, 19:20 UTCJul 11, 20:15 UTC55m
2026-07-11 ANZ105M - Jul 11, 06:01 UTCJul 11, 07:00 UTC1h 0m
2026-07-11 ANZ530M - Jul 11, 03:40 UTCJul 11, 04:35 UTC55m
2026-07-11 ANZ077M - Jul 11, 01:10 UTCJul 11, 02:00 UTC50m
2026-07-10 ANZ088M - Jul 10, 22:35 UTCJul 10, 23:25 UTC50m
2026-07-10 ANZ061M - Jul 10, 20:10 UTCJul 10, 20:55 UTC45m
2026-07-10 ANZ050M - Jul 10, 06:35 UTCJul 10, 07:15 UTC40m
2026-07-10 ANZ047M - Jul 10, 05:20 UTCJul 10, 05:55 UTC35m
2026-07-10 ANZ052M - Jul 10, 03:40 UTCJul 10, 04:10 UTC30m
2026-07-10 ANZ041M - Jul 10, 02:05 UTCJul 10, 02:30 UTC25m
2026-07-09 ANZ118M - Jul 9, 22:15 UTCJul 9, 23:05 UTC50m
2026-07-09 ANZ579M AKL → PMR Jul 9, 20:30 UTCJul 9, 21:30 UTC1h 0m
2026-07-09 ANZ100M - Jul 9, 18:10 UTCJul 9, 19:05 UTC55m
2026-07-09 ANZ186M - Jul 9, 05:35 UTCJul 9, 06:40 UTC1h 5m
2026-07-09 ANZ648M - Jul 9, 03:10 UTCJul 9, 04:05 UTC55m
2026-07-09 ANZ655M - Jul 9, 00:55 UTCJul 9, 02:05 UTC1h 10m
2026-07-08 ANZ615M - Jul 8, 22:45 UTCJul 8, 23:05 UTC20m
2026-07-08 ANZ615M - Jul 8, 21:30 UTCJul 8, 22:05 UTC35m
2026-07-08 ANZ618M - Jul 8, 19:10 UTCJul 8, 20:45 UTC1h 35m
2026-07-08 ANZ809M - Jul 8, 04:25 UTCJul 8, 06:10 UTC1h 45m
2026-07-07 ANZ808M CHC → TRG Jul 7, 06:55 UTCJul 7, 08:35 UTC1h 40m
2026-07-07 ANZ777M - Jul 7, 04:20 UTCJul 7, 05:40 UTC1h 20m
2026-07-07 ANZ774M - Jul 7, 01:40 UTCJul 7, 03:05 UTC1h 25m
2026-07-06 ANZ746M - Jul 6, 23:25 UTCJul 7, 00:20 UTC55m
2026-07-06 ANZ745M - Jul 6, 21:30 UTCJul 6, 22:35 UTC1h 5m
2026-07-06 ANZ189M - Jul 6, 18:55 UTCJul 6, 19:55 UTC1h 0m
2026-07-06 ANZ328M - Jul 6, 03:25 UTCJul 6, 05:00 UTC1h 35m
2026-07-06 ANZ371M - Jul 6, 01:10 UTCJul 6, 02:00 UTC50m
2026-07-05 ANZ352M - Jul 5, 23:00 UTCJul 6, 00:10 UTC1h 10m
2026-07-05 ANZ704M - Jul 5, 20:40 UTCJul 5, 21:50 UTC1h 10m
2026-07-05 ANZ703M CHC → IVC Jul 5, 18:55 UTCJul 5, 20:00 UTC1h 5m

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

Mode-S C821BA frequently asked

What is Mode-S code C821BA?
C821BA is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-MVE.
Where is Mode-S C821BA registered?
Mode-S code C821BA 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 C821BA broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C821BA, octal 62020672, decimal 13,115,834.
What flights does C821BA operate?
Mode-S C821BA has broadcast 20 distinct callsigns, including ANZ177M, ANZ629M, ANZ328M, ANZ002M, ANZ822M.