Apparatus

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sensors Mode-S transponder

4CC4D1

ICAO 24-bit transponder address

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

Hex
4CC4D1
Octal
23142321
Decimal
5,031,121
Tail
TF-FXI
Type
DH8D
No current signal · last broadcast Jul 26, 20:30 UTC
Flights observed
296
Distinct callsigns
20
Country
-
Last broadcast
Jul 26, 20:30 UTC

Last known position

Most recent position reported by Mode-S 4CC4D1.

Callsign history 20 distinct

Callsign Airline Flights Last seen
ICE300 - 63 2026-07-06
ICE301 - 56 2026-07-06
ICE51R - 11 2026-07-18
ICE50R Icelandair 11 2026-07-18
ICE31R Icelandair 11 2026-07-26
ICE30R Icelandair 11 2026-07-26
ICE71G Icelandair 10 2026-07-26
ICE70G Icelandair 10 2026-07-26
ICE138 - 10 2026-07-15
ICE102 - 10 2026-07-08
ICE101 - 10 2026-07-08
ICE139 - 8 2026-07-15
ICE67G Icelandair 5 2026-07-26
ICE66G Icelandair 5 2026-07-26
ICE5401 - 4 2026-07-15
ICE49R Icelandair 4 2026-05-27
ICE48R Icelandair 4 2026-05-27
ICE114 Icelandair 4 2026-05-27
ICE113 Icelandair 4 2026-05-27
ICE5402 - 3 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ICE71G EGS → RKV Jul 26, 20:10 UTCJul 26, 20:30 UTC20m
2026-07-26 ICE70G RKV → EGS Jul 26, 18:10 UTCJul 26, 18:30 UTC20m
2026-07-26 ICE67G EGS → RKV Jul 26, 16:40 UTCJul 26, 16:55 UTC15m
2026-07-26 ICE66G KEF → HAM Jul 26, 12:35 UTCJul 26, 13:00 UTC25m
2026-07-26 ICE31R AEY → RKV Jul 26, 09:40 UTCJul 26, 09:50 UTC10m
2026-07-26 ICE30R RKV → AEY Jul 26, 08:10 UTCJul 26, 08:30 UTC20m
2026-07-25 ICE71G EGS → RKV Jul 25, 20:20 UTCJul 25, 20:35 UTC15m
2026-07-25 ICE70G RKV → EGS Jul 25, 18:15 UTCJul 25, 18:40 UTC25m
2026-07-25 ICE41R AEY → RKV Jul 25, 13:55 UTCJul 25, 14:05 UTC10m
2026-07-25 ICE40R RKV → AEY Jul 25, 12:25 UTCJul 25, 12:45 UTC20m
2026-07-20 ICE31R - Jul 20, 08:50 UTCJul 20, 09:05 UTC15m
2026-07-20 ICE30R RKV → AEY Jul 20, 07:10 UTCJul 20, 07:30 UTC20m
2026-07-19 ICE71G - Jul 19, 20:30 UTCJul 19, 20:45 UTC15m
2026-07-19 ICE70G - Jul 19, 18:15 UTCJul 19, 18:40 UTC25m
2026-07-19 ICE67G EGS → RKV Jul 19, 17:00 UTCJul 19, 17:15 UTC15m
2026-07-19 ICE66G - Jul 19, 14:50 UTCJul 19, 15:15 UTC25m
2026-07-19 ICE31R - Jul 19, 10:00 UTCJul 19, 10:15 UTC15m
2026-07-19 ICE30R RKV → AEY Jul 19, 08:30 UTCJul 19, 08:50 UTC20m
2026-07-18 ICE51R - Jul 18, 20:05 UTCJul 18, 20:25 UTC20m
2026-07-18 ICE50R RKV → AEY Jul 18, 18:35 UTCJul 18, 18:55 UTC20m
2026-07-18 ICE31R - Jul 18, 09:50 UTCJul 18, 10:10 UTC20m
2026-07-18 ICE30R RKV → AEY Jul 18, 08:25 UTCJul 18, 08:45 UTC20m
2026-07-17 ICE71G - Jul 17, 21:30 UTCJul 17, 21:44 UTC15m
2026-07-17 ICE70G - Jul 17, 19:30 UTCJul 17, 19:49 UTC20m
2026-07-17 ICE67G - Jul 17, 18:10 UTCJul 17, 18:25 UTC15m
2026-07-17 ICE66G - Jul 17, 16:15 UTCJul 17, 16:34 UTC20m
2026-07-16 ICE5436 BOS → KEF Jul 16, 22:55 UTCJul 16, 23:20 UTC25m
2026-07-16 ICE104 - Jul 16, 21:35 UTCJul 16, 21:55 UTC20m
2026-07-16 ICE103 - Jul 16, 18:40 UTCJul 16, 19:14 UTC35m
2026-07-16 ICE136 - Jul 16, 16:44 UTCJul 16, 17:10 UTC25m
2026-07-16 ICE137 - Jul 16, 11:40 UTCJul 16, 12:09 UTC30m
2026-07-16 ICE5437 - Jul 16, 10:00 UTCJul 16, 10:10 UTC10m
2026-07-15 ICE51R - Jul 15, 21:05 UTCJul 15, 21:30 UTC25m
2026-07-15 ICE50R - Jul 15, 19:35 UTCJul 15, 19:55 UTC20m
2026-07-15 ICE5402 - Jul 15, 18:30 UTCJul 15, 18:40 UTC10m
2026-07-15 ICE138 - Jul 15, 17:05 UTCJul 15, 17:25 UTC20m
2026-07-15 ICE139 - Jul 15, 11:25 UTCJul 15, 11:45 UTC20m
2026-07-15 ICE5401 RKV → KEF Jul 15, 10:10 UTCJul 15, 10:20 UTC10m
2026-07-14 ICE71G - Jul 14, 20:25 UTCJul 14, 20:50 UTC25m
2026-07-14 ICE70G - Jul 14, 18:20 UTCJul 14, 18:40 UTC20m
2026-07-14 ICE31R - Jul 14, 08:45 UTCJul 14, 09:00 UTC15m
2026-07-14 ICE30R - Jul 14, 07:15 UTCJul 14, 07:30 UTC15m
2026-07-13 ICE51R - Jul 13, 20:45 UTCJul 13, 21:00 UTC15m
2026-07-13 ICE50R - Jul 13, 19:15 UTCJul 13, 19:30 UTC15m
2026-07-13 ICE47R - Jul 13, 17:55 UTCJul 13, 18:15 UTC20m
2026-07-13 ICE46R - Jul 13, 16:15 UTCJul 13, 16:35 UTC20m
2026-07-13 ICE37R - Jul 13, 12:50 UTCJul 13, 13:10 UTC20m
2026-07-13 ICE36R - Jul 13, 11:15 UTCJul 13, 11:35 UTC20m
2026-07-13 ICE61G - Jul 13, 09:45 UTCJul 13, 10:05 UTC20m
2026-07-13 ICE60G - Jul 13, 07:40 UTCJul 13, 08:01 UTC20m

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

Mode-S 4CC4D1 frequently asked

What is Mode-S code 4CC4D1?
4CC4D1 is an ICAO 24-bit transponder address. Assigned to TF-FXI.
Is 4CC4D1 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CC4D1, octal 23142321, decimal 5,031,121.
What flights does 4CC4D1 operate?
Mode-S 4CC4D1 has broadcast 20 distinct callsigns, including ICE300, ICE301, ICE51R, ICE50R, ICE31R.