Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4CC4F1

ICAO 24-bit transponder address

Currently assigned to TF-ISP · BOEING 767-300

Hex
4CC4F1
Octal
23142361
Decimal
5,031,153
Tail
TF-ISP
Type
B763
No current signal · last broadcast 45m ago
Flights observed
127
Distinct callsigns
7
Country
-
Last broadcast
45m ago

Last known position

Most recent position reported by Mode-S 4CC4F1.

Callsign history 7 distinct

Callsign Airline Flights Last seen
ICE720 Icelandair 35 2026-05-30
ICE721 Icelandair 33 2026-05-30
ICE750 Icelandair 28 2026-05-29
ICE751 Icelandair 27 2026-05-29
ICE753 - 2 2026-05-17
ICE751Z Icelandair 1 2026-04-23
ICE2LG Icelandair 1 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 ICE720 KEF → LGG May 30, 13:05 UTCMay 30, 14:15 UTC1h 10m
2026-05-30 ICE721 KEF → JFK May 30, 05:30 UTCMay 30, 11:00 UTC5h 30m
2026-05-30 ICE721 KEF → JFK May 30, 00:55 UTCMay 30, 03:50 UTC2h 55m
2026-05-29 ICE750 KEF → LGG May 29, 19:45 UTCMay 29, 22:30 UTC2h 45m
2026-05-29 ICE751 LGG → KEF May 29, 00:30 UTCMay 29, 03:20 UTC2h 50m
2026-05-28 ICE750 KEF → LGG May 28, 19:15 UTCMay 28, 22:10 UTC2h 55m
2026-05-28 ICE751 LGG → KEF May 28, 02:15 UTCMay 28, 05:10 UTC2h 55m
2026-05-27 ICE720 KEF → LGG May 27, 21:45 UTCMay 28, 00:35 UTC2h 50m
2026-05-27 ICE720 KEF → LGG May 27, 14:50 UTCMay 27, 19:45 UTC4h 55m
2026-05-27 ICE721 KEF → JFK May 27, 06:40 UTCMay 27, 12:20 UTC5h 40m
2026-05-27 ICE721 KEF → JFK May 27, 00:19 UTCMay 27, 03:34 UTC3h 15m
2026-05-26 ICE750 KEF → LGG May 26, 19:25 UTCMay 26, 22:05 UTC2h 40m
2026-05-24 ICE750 KEF → LGG May 24, 20:00 UTCMay 25, 03:45 UTC7h 45m
2026-05-23 ICE720 KEF → LGG May 23, 14:20 UTCMay 23, 19:45 UTC5h 25m
2026-05-23 ICE721 KEF → JFK May 23, 06:40 UTCMay 23, 12:00 UTC5h 20m
2026-05-23 ICE721 KEF → JFK May 23, 01:15 UTCMay 23, 04:10 UTC2h 54m
2026-05-22 ICE750 KEF → LGG May 22, 19:35 UTCMay 22, 22:35 UTC3h 0m
2026-05-22 ICE751 LGG → KEF May 22, 00:15 UTCMay 22, 03:10 UTC2h 55m
2026-05-21 ICE750 KEF → LGG May 21, 19:30 UTCMay 21, 22:25 UTC2h 55m
2026-05-21 ICE751 LGG → KEF May 21, 01:50 UTCMay 21, 04:55 UTC3h 5m
2026-05-20 ICE720 KEF → LGG May 20, 20:20 UTCMay 20, 23:00 UTC2h 40m
2026-05-20 ICE720 KEF → LGG May 20, 18:30 UTCMay 20, 18:50 UTC20m
2026-05-20 ICE720 KEF → LGG May 20, 13:50 UTCMay 20, 15:25 UTC1h 35m
2026-05-20 ICE721 KEF → JFK May 20, 09:40 UTCMay 20, 11:30 UTC1h 50m
2026-05-20 ICE721 KEF → JFK May 20, 06:00 UTCMay 20, 06:10 UTC10m
2026-05-20 ICE721 KEF → JFK May 20, 00:00 UTCMay 20, 02:50 UTC2h 50m
2026-05-19 ICE750 KEF → LGG May 19, 19:40 UTCMay 19, 22:40 UTC3h 0m
2026-05-19 ICE751 LGG → KEF May 19, 00:30 UTCMay 19, 03:25 UTC2h 55m
2026-05-18 ICE750 KEF → LGG May 18, 20:10 UTCMay 18, 23:00 UTC2h 50m
2026-05-18 ICE751 LGG → KEF May 18, 00:55 UTCMay 18, 03:50 UTC2h 55m
2026-05-17 ICE720 KEF → LGG May 17, 20:15 UTCMay 17, 23:05 UTC2h 50m
2026-05-17 ICE753 DUB → KEF May 17, 16:25 UTCMay 17, 18:35 UTC2h 10m
2026-05-17 ICE753 - May 17, 13:45 UTCMay 17, 15:05 UTC1h 20m
2026-05-17 ICE2LG KEF → LGG May 17, 08:15 UTCMay 17, 11:10 UTC2h 55m
2026-05-16 ICE720 KEF → LGG May 16, 17:20 UTCMay 16, 17:45 UTC25m
2026-05-16 ICE720 KEF → LGG May 16, 14:01 UTCMay 16, 14:16 UTC15m
2026-05-16 ICE720 KEF → LGG May 16, 12:31 UTCMay 16, 13:51 UTC1h 20m
2026-05-16 ICE721 KEF → JFK May 16, 05:15 UTCMay 16, 10:31 UTC5h 16m
2026-05-14 ICE751 LGG → KEF May 14, 00:45 UTCMay 14, 03:50 UTC3h 5m
2026-05-13 ICE720 KEF → LGG May 13, 20:40 UTCMay 13, 23:25 UTC2h 45m
2026-05-13 ICE720 KEF → LGG May 13, 13:15 UTCMay 13, 18:00 UTC4h 45m
2026-05-13 ICE721 KEF → JFK May 13, 05:00 UTCMay 13, 10:55 UTC5h 55m
2026-05-13 ICE721 KEF → JFK May 13, 00:10 UTCMay 13, 03:20 UTC3h 10m
2026-05-12 ICE750 KEF → LGG May 12, 19:40 UTCMay 12, 22:25 UTC2h 45m
2026-05-12 ICE751 LGG → KEF May 12, 03:10 UTCMay 12, 03:40 UTC30m
2026-05-11 ICE750 KEF → LGG May 11, 19:25 UTCMay 11, 22:05 UTC2h 40m
2026-05-11 ICE751 LGG → KEF May 11, 00:45 UTCMay 11, 03:55 UTC3h 10m
2026-05-10 ICE720 KEF → LGG May 10, 20:20 UTCMay 10, 23:05 UTC2h 45m
2026-05-09 ICE720 KEF → LGG May 9, 13:25 UTCMay 9, 18:20 UTC4h 55m
2026-05-09 ICE721 KEF → JFK May 9, 05:30 UTCMay 9, 11:15 UTC5h 45m

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

Mode-S 4CC4F1 frequently asked

What is Mode-S code 4CC4F1?
4CC4F1 is an ICAO 24-bit transponder address. Assigned to TF-ISP.
Is 4CC4F1 broadcasting right now?
No active broadcast right now. Last signal was 45m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CC4F1, octal 23142361, decimal 5,031,153.
What flights does 4CC4F1 operate?
Mode-S 4CC4F1 has broadcast 7 distinct callsigns, including ICE720, ICE721, ICE750, ICE751, ICE753.