sensors Mode-S transponder

C821F8

ICAO 24-bit transponder address · allocated to New Zealand

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

Hex
C821F8
Octal
62020770
Decimal
13,115,896
Country
NZ
Tail
ZK-MVF
Type
AT76
Broadcasting now · callsign ANZ774M · 19,000 ft
Flights observed
10
Distinct callsigns
7
Country
NZ
Last broadcast
19h ago

Current position

C821F8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C821F8 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 7 distinct

Callsign Airline Flights Last seen
ANZ896M - 2 2026-04-14
ANZ785M Air New Zealand 2 2026-04-13
ANZ680M - 2 2026-04-13
ANZ820M Air New Zealand 1 2026-04-13
ANZ683M - 1 2026-04-13
ANZ374M - 1 2026-04-14
ANZ328M - 1 2026-04-13

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 ANZ896M - Apr 14, 07:10 UTCApr 14, 07:30 UTC20m
2026-04-14 ANZ896M - Apr 14, 06:50 UTCApr 14, 07:10 UTC20m
2026-04-14 ANZ374M - Apr 14, 05:15 UTCApr 14, 05:45 UTC30m
2026-04-13 ANZ820M WLG → HLZ Apr 13, 21:15 UTCApr 13, 22:10 UTC55m
2026-04-13 ANZ680M - Apr 13, 19:50 UTCApr 13, 20:10 UTC20m
2026-04-13 ANZ680M - Apr 13, 18:45 UTCApr 13, 20:10 UTC1h 25m
2026-04-13 ANZ683M - Apr 13, 05:00 UTCApr 13, 06:30 UTC1h 30m
2026-04-13 ANZ328M - Apr 13, 03:00 UTCApr 13, 03:45 UTC45m
2026-04-13 ANZ785M ROT → CHC Apr 13, 00:20 UTCApr 13, 00:45 UTC25m
2026-04-12 ANZ785M ROT → CHC Apr 12, 23:55 UTCApr 13, 00:45 UTC50m

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

Mode-S C821F8 frequently asked

What is Mode-S code C821F8?
C821F8 is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-MVF.
Where is Mode-S C821F8 registered?
Mode-S code C821F8 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 C821F8 broadcasting right now?
Yes. Mode-S C821F8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C821F8, octal 62020770, decimal 13,115,896.
What flights does C821F8 operate?
Mode-S C821F8 has broadcast 7 distinct callsigns, including ANZ896M, ANZ785M, ANZ680M, ANZ820M, ANZ683M.