sensors Mode-S transponder

C87F3F

ICAO 24-bit transponder address

Currently assigned to NZ7012 · LOCKHEED MARTIN C-130J Super Hercules

Hex
C87F3F
Octal
62077477
Decimal
13,139,775
Tail
NZ7012
Type
C30J
Broadcasting now · callsign HER12 · 4,150 ft
Flights observed
6
Distinct callsigns
1
Country
-
Last broadcast
1d ago

Current position

C87F3F is currently broadcasting. Map zoomed to live position.

Callsign history 1 distinct

Callsign Airline Flights Last seen
HER12 - 6 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 HER12 - Apr 13, 08:20 UTCApr 13, 08:25 UTC5m
2026-04-13 HER12 - Apr 13, 07:55 UTCApr 13, 08:15 UTC20m
2026-04-13 HER12 - Apr 13, 06:30 UTCApr 13, 06:45 UTC15m
2026-04-13 HER12 - Apr 13, 05:20 UTCApr 13, 06:15 UTC55m
2026-04-13 HER12 - Apr 13, 02:25 UTCApr 13, 03:05 UTC40m
2026-04-12 HER12 - Apr 12, 23:55 UTCApr 13, 00:05 UTC10m

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 NZ7012 page for operator, model, and routing details .

Mode-S C87F3F frequently asked

What is Mode-S code C87F3F?
C87F3F is an ICAO 24-bit transponder address. Assigned to NZ7012.
Is C87F3F broadcasting right now?
Yes. Mode-S C87F3F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C87F3F, octal 62077477, decimal 13,139,775.
What flights does C87F3F operate?
Mode-S C87F3F has broadcast 1 distinct callsign, including HER12.