sensors Mode-S transponder

4CC52D

ICAO 24-bit transponder address

Currently assigned to TF-ICO · BOEING 737 MAX 8

Hex
4CC52D
Octal
23142455
Decimal
5,031,213
Tail
TF-ICO
Type
B38M
No current signal · last broadcast 12h ago
Flights observed
11
Distinct callsigns
6
Country
-
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 4CC52D.

Callsign history 6 distinct

Callsign Airline Flights Last seen
ICE680 Icelandair 3 2026-04-13
ICE532 - 3 2026-04-13
ICE825 Icelandair 2 2026-04-13
ICE824 - 1 2026-04-14
ICE580 - 1 2026-04-14
ICE533 - 1 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 ICE580 - Apr 14, 10:00 UTCApr 14, 10:20 UTC20m
2026-04-14 ICE824 - Apr 14, 07:40 UTCApr 14, 08:10 UTC30m
2026-04-13 ICE825 KEF → BNA Apr 13, 21:55 UTCApr 13, 23:40 UTC1h 45m
2026-04-13 ICE825 KEF → BNA Apr 13, 17:30 UTCApr 13, 17:35 UTC5m
2026-04-13 ICE533 - Apr 13, 12:20 UTCApr 13, 15:40 UTC3h 20m
2026-04-13 ICE532 - Apr 13, 08:55 UTCApr 13, 11:05 UTC2h 10m
2026-04-13 ICE532 - Apr 13, 07:55 UTCApr 13, 11:05 UTC3h 10m
2026-04-13 ICE532 - Apr 13, 07:35 UTCApr 13, 07:55 UTC20m
2026-04-13 ICE680 SEA → KEF Apr 13, 05:30 UTCApr 13, 05:50 UTC20m
2026-04-13 ICE680 SEA → KEF Apr 13, 00:20 UTCApr 13, 00:35 UTC15m
2026-04-12 ICE680 SEA → KEF Apr 12, 23:55 UTCApr 13, 00:35 UTC40m

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

Mode-S 4CC52D frequently asked

What is Mode-S code 4CC52D?
4CC52D is an ICAO 24-bit transponder address. Assigned to TF-ICO.
Is 4CC52D broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CC52D, octal 23142455, decimal 5,031,213.
What flights does 4CC52D operate?
Mode-S 4CC52D has broadcast 6 distinct callsigns, including ICE680, ICE532, ICE825, ICE824, ICE580.