Apparatus

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sensors Mode-S transponder

4CC50F

ICAO 24-bit transponder address

Currently assigned to TF-ICY · BOEING 737 MAX 8

Hex
4CC50F
Octal
23142417
Decimal
5,031,183
Tail
TF-ICY
Type
B38M
Broadcasting now · callsign ICE34E · 4,650 ft
Flights observed
412
Distinct callsigns
20
Country
-
Last broadcast
Jul 26, 20:20 UTC

Current position

4CC50F is currently broadcasting. Map zoomed to live position.

Callsign history 20 distinct

Callsign Airline Flights Last seen
ICE680 - 12 2026-07-14
ICE11P Icelandair 11 2026-07-23
ICE641 Icelandair 10 2026-07-17
ICE1A Icelandair 10 2026-07-20
ICE99K - 9 2026-07-11
ICE681 Icelandair 9 2026-07-21
ICE605 - 9 2026-07-17
ICE604 - 9 2026-07-18
ICE98C - 8 2026-07-11
ICE88E Icelandair 8 2026-07-24
ICE473 Icelandair 8 2026-07-22
ICE472 Icelandair 8 2026-07-22
ICE640 Icelandair 7 2026-07-17
ICE55L Icelandair 7 2026-07-26
ICE2B Icelandair 7 2026-07-21
ICE12E Icelandair 7 2026-07-22
ICE855 Icelandair 6 2026-07-26
ICE63L - 6 2026-07-14
ICE62L - 6 2026-07-14
ICE56K - 6 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ICE55L KEF → JFK Jul 26, 20:05 UTCJul 26, 20:20 UTC15m
2026-07-26 ICE7EZ AMS → KEF Jul 26, 15:15 UTCJul 26, 18:10 UTC2h 55m
2026-07-26 ICE6EZ KEF → AMS Jul 26, 11:10 UTCJul 26, 13:30 UTC2h 20m
2026-07-26 ICE856 ORD → KEF Jul 26, 04:15 UTCJul 26, 09:45 UTC5h 31m
2026-07-26 ICE855 KEF → ORD Jul 26, 01:05 UTCJul 26, 02:25 UTC1h 20m
2026-07-25 ICE855 KEF → ORD Jul 25, 20:10 UTCJul 25, 20:25 UTC15m
2026-07-25 ICE561 NCE → KEF Jul 25, 14:05 UTCJul 25, 18:15 UTC4h 10m
2026-07-25 ICE560 KEF → NCE Jul 25, 09:00 UTCJul 25, 12:25 UTC3h 25m
2026-07-24 ICE7LI MXP → KEF Jul 24, 21:15 UTCJul 25, 01:10 UTC3h 55m
2026-07-24 ICE6LC KEF → MXP Jul 24, 18:50 UTCJul 24, 19:35 UTC45m
2026-07-24 ICE6LC KEF → MXP Jul 24, 15:55 UTCJul 24, 18:45 UTC2h 50m
2026-07-24 ICE88E SEA → KEF Jul 24, 13:20 UTCJul 24, 13:35 UTC15m
2026-07-24 ICE88E SEA → KEF Jul 24, 06:45 UTCJul 24, 08:45 UTC2h 0m
2026-07-23 ICE11P KEF → SEA Jul 23, 20:20 UTCJul 24, 03:45 UTC7h 25m
2026-07-23 ICE547 CDG → KEF Jul 23, 15:20 UTCJul 23, 18:30 UTC3h 10m
2026-07-23 ICE546 KEF → CDG Jul 23, 11:10 UTCJul 23, 13:55 UTC2h 45m
2026-07-23 ICE856 ORD → KEF Jul 23, 04:00 UTCJul 23, 09:35 UTC5h 35m
2026-07-22 ICE855 KEF → ORD Jul 22, 19:45 UTCJul 23, 02:15 UTC6h 30m
2026-07-22 ICE473 LGW → KEF Jul 22, 15:15 UTCJul 22, 18:00 UTC2h 45m
2026-07-22 ICE472 KEF → LGW Jul 22, 11:10 UTCJul 22, 13:35 UTC2h 25m
2026-07-22 ICE12E SEA → KEF Jul 22, 02:25 UTCJul 22, 04:10 UTC1h 45m
2026-07-21 ICE681 KEF → SEA Jul 21, 17:10 UTCJul 22, 00:35 UTC7h 25m
2026-07-21 ICE431 GLA → KEF Jul 21, 13:30 UTCJul 21, 15:45 UTC2h 15m
2026-07-21 ICE432 KEF → GLA Jul 21, 10:20 UTCJul 21, 12:10 UTC1h 50m
2026-07-21 ICE2B IAD → KEF Jul 21, 01:20 UTCJul 21, 06:35 UTC5h 15m
2026-07-20 ICE1A KEF → IAD Jul 20, 21:30 UTCJul 20, 23:50 UTC2h 20m
2026-07-20 ICE1A KEF → IAD Jul 20, 18:05 UTCJul 20, 18:15 UTC10m
2026-07-20 ICE15M BER → KEF Jul 20, 12:45 UTCJul 20, 16:15 UTC3h 30m
2026-07-20 ICE14T KEF → BER Jul 20, 08:20 UTCJul 20, 11:20 UTC3h 0m
2026-07-20 ICE42P BWI → KEF Jul 20, 01:30 UTCJul 20, 07:05 UTC5h 35m
2026-07-19 ICE43E KEF → BWI Jul 19, 22:00 UTCJul 19, 23:55 UTC1h 55m
2026-07-19 ICE43E KEF → BWI Jul 19, 17:35 UTCJul 19, 17:50 UTC15m
2026-07-19 ICE533 MUC → KEF Jul 19, 12:20 UTCJul 19, 16:05 UTC3h 45m
2026-07-19 ICE532 KEF → MUC Jul 19, 07:30 UTCJul 19, 10:50 UTC3h 20m
2026-07-18 ICE7EZ AMS → KEF Jul 18, 17:40 UTCJul 18, 20:40 UTC3h 0m
2026-07-18 ICE6EZ - Jul 18, 13:25 UTCJul 18, 16:00 UTC2h 35m
2026-07-18 ICE604 - Jul 18, 08:15 UTCJul 18, 08:45 UTC30m
2026-07-18 ICE604 - Jul 18, 03:40 UTCJul 18, 04:45 UTC1h 5m
2026-07-17 ICE605 KEF → YYZ Jul 17, 20:40 UTCJul 18, 02:05 UTC5h 25m
2026-07-17 ICE565 - Jul 17, 15:40 UTCJul 17, 19:25 UTC3h 45m
2026-07-17 ICE564 KEF → GVA Jul 17, 10:40 UTCJul 17, 13:55 UTC3h 15m
2026-07-17 ICE640 BWI → KEF Jul 17, 03:39 UTCJul 17, 08:54 UTC5h 15m
2026-07-17 ICE641 KEF → BWI Jul 17, 00:04 UTCJul 17, 01:45 UTC1h 40m
2026-07-16 ICE641 KEF → BWI Jul 16, 20:00 UTCJul 16, 20:15 UTC15m
2026-07-16 ICE597 BCN → KEF Jul 16, 14:15 UTCJul 16, 18:15 UTC4h 0m
2026-07-16 ICE596 - Jul 16, 08:35 UTCJul 16, 12:25 UTC3h 50m
2026-07-16 ICE2B IAD → KEF Jul 16, 01:30 UTCJul 16, 06:55 UTC5h 25m
2026-07-15 ICE1A - Jul 15, 21:15 UTCJul 15, 23:45 UTC2h 30m
2026-07-15 ICE1A - Jul 15, 17:30 UTCJul 15, 17:45 UTC15m
2026-07-15 ICE35E EDI → KEF Jul 15, 13:40 UTCJul 15, 15:35 UTC1h 55m

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

Mode-S 4CC50F frequently asked

What is Mode-S code 4CC50F?
4CC50F is an ICAO 24-bit transponder address. Assigned to TF-ICY.
Is 4CC50F broadcasting right now?
Yes. Mode-S 4CC50F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CC50F, octal 23142417, decimal 5,031,183.
What flights does 4CC50F operate?
Mode-S 4CC50F has broadcast 20 distinct callsigns, including ICE680, ICE11P, ICE641, ICE1A, ICE99K.