sensors Mode-S transponder

4CC57E

ICAO 24-bit transponder address

Currently assigned to TF-FXE · DE HAVILLAND DHC-8-400 Dash 8

Hex
4CC57E
Octal
23142576
Decimal
5,031,294
Tail
TF-FXE
Type
DH8D
Broadcasting now · callsign ICE31R · 21,050 ft
Flights observed
11
Distinct callsigns
8
Country
-
Last broadcast
23h ago

Current position

4CC57E is currently broadcasting. Map zoomed to live position.

Callsign history 8 distinct

Callsign Airline Flights Last seen
ICE51R - 2 2026-04-13
ICE50R - 2 2026-04-13
ICE49R - 2 2026-04-13
ICE61G - 1 2026-04-14
ICE60G Icelandair 1 2026-04-14
ICE48R - 1 2026-04-13
ICE31R - 1 2026-04-13
ICE30R Icelandair 1 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 ICE61G - Apr 14, 09:25 UTCApr 14, 09:45 UTC20m
2026-04-14 ICE60G RKV → EGS Apr 14, 07:45 UTCApr 14, 08:10 UTC25m
2026-04-13 ICE51R - Apr 13, 19:50 UTCApr 13, 20:10 UTC20m
2026-04-13 ICE50R - Apr 13, 18:25 UTCApr 13, 18:45 UTC20m
2026-04-13 ICE49R - Apr 13, 17:00 UTCApr 13, 17:25 UTC25m
2026-04-13 ICE48R - Apr 13, 15:35 UTCApr 13, 15:55 UTC20m
2026-04-13 ICE31R - Apr 13, 08:55 UTCApr 13, 09:20 UTC25m
2026-04-13 ICE30R RKV → AEY Apr 13, 07:25 UTCApr 13, 07:45 UTC20m
2026-04-12 ICE51R - Apr 12, 20:00 UTCApr 12, 20:15 UTC15m
2026-04-12 ICE50R - Apr 12, 18:30 UTCApr 12, 18:50 UTC20m
2026-04-12 ICE49R - Apr 12, 17:15 UTCApr 12, 17:25 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 TF-FXE page for operator, model, and routing details .

Mode-S 4CC57E frequently asked

What is Mode-S code 4CC57E?
4CC57E is an ICAO 24-bit transponder address. Assigned to TF-FXE.
Is 4CC57E broadcasting right now?
Yes. Mode-S 4CC57E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CC57E, octal 23142576, decimal 5,031,294.
What flights does 4CC57E operate?
Mode-S 4CC57E has broadcast 8 distinct callsigns, including ICE51R, ICE50R, ICE49R, ICE61G, ICE60G.