sensors Mode-S transponder

4CC578

ICAO 24-bit transponder address

Currently assigned to TF-IAB · AIRBUS A-321neo

Hex
4CC578
Octal
23142570
Decimal
5,031,288
Tail
TF-IAB
Type
A21N
Broadcasting now · callsign ICE686 · 33,000 ft
Flights observed
10
Distinct callsigns
5
Country
-
Last broadcast
17h ago

Current position

4CC578 is currently broadcasting. Map zoomed to live position.

Callsign history 5 distinct

Callsign Airline Flights Last seen
ICE820 - 4 2026-04-14
ICE821 Icelandair 2 2026-04-13
ICE306 - 2 2026-04-14
ICE29E - 1 2026-04-13
ICE28T - 1 2026-04-13

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 ICE306 - Apr 14, 10:05 UTCApr 14, 11:05 UTC1h 0m
2026-04-14 ICE306 - Apr 14, 08:30 UTCApr 14, 08:55 UTC25m
2026-04-14 ICE820 - Apr 14, 07:10 UTCApr 14, 07:20 UTC10m
2026-04-14 ICE820 - Apr 14, 06:50 UTCApr 14, 07:10 UTC20m
2026-04-13 ICE821 KEF → RDU Apr 13, 21:00 UTCApr 13, 23:40 UTC2h 40m
2026-04-13 ICE821 KEF → RDU Apr 13, 17:10 UTCApr 13, 17:30 UTC20m
2026-04-13 ICE29E MAN → KEF Apr 13, 12:40 UTCApr 13, 15:00 UTC2h 20m
2026-04-13 ICE28T KEF → MAN Apr 13, 08:35 UTCApr 13, 10:45 UTC2h 10m
2026-04-13 ICE820 - Apr 13, 06:25 UTCApr 13, 07:05 UTC40m
2026-04-13 ICE820 - Apr 13, 00:55 UTCApr 13, 03:25 UTC2h 30m

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 TF-IAB page for operator, model, and routing details .

Mode-S 4CC578 frequently asked

What is Mode-S code 4CC578?
4CC578 is an ICAO 24-bit transponder address. Assigned to TF-IAB.
Is 4CC578 broadcasting right now?
Yes. Mode-S 4CC578 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CC578, octal 23142570, decimal 5,031,288.
What flights does 4CC578 operate?
Mode-S 4CC578 has broadcast 5 distinct callsigns, including ICE820, ICE821, ICE306, ICE29E, ICE28T.