Apparatus

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sensors Mode-S transponder

4CC52E

ICAO 24-bit transponder address

Currently assigned to TF-ICB · BOEING 737 MAX 9

Hex
4CC52E
Octal
23142456
Decimal
5,031,214
Tail
TF-ICB
Type
B39M
No current signal · last broadcast Jul 26, 17:25 UTC
Flights observed
405
Distinct callsigns
20
Country
-
Last broadcast
Jul 26, 17:25 UTC

Last known position

Most recent position reported by Mode-S 4CC52E.

Callsign history 20 distinct

Callsign Airline Flights Last seen
ICE657 Icelandair 24 2026-07-26
ICE43E Icelandair 24 2026-07-22
ICE656 Icelandair 19 2026-07-26
ICE42P Icelandair 18 2026-07-23
ICE9V - 15 2026-07-09
ICE825 - 15 2026-07-12
ICE821 Icelandair 15 2026-07-24
ICE10V - 12 2026-07-10
ICE29E Icelandair 11 2026-07-19
ICE28T - 11 2026-07-19
ICE824 - 10 2026-07-13
ICE521 Icelandair 10 2026-07-23
ICE520 Icelandair 10 2026-07-23
ICE2B Icelandair 10 2026-07-19
ICE1A Icelandair 10 2026-07-18
ICE820 Icelandair 9 2026-07-25
ICE501 Icelandair 8 2026-07-22
ICE419 - 8 2026-07-11
ICE418 - 8 2026-07-11
ICE307 - 8 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ICE657 KEF → MSP Jul 26, 17:05 UTCJul 26, 17:25 UTC20m
2026-07-26 ICE73P BRU → KEF Jul 26, 12:20 UTCJul 26, 15:30 UTC3h 10m
2026-07-26 ICE74A KEF → BRU Jul 26, 08:05 UTCJul 26, 10:45 UTC2h 40m
2026-07-26 ICE656 MSP → KEF Jul 26, 00:45 UTCJul 26, 06:20 UTC5h 35m
2026-07-25 ICE657 KEF → MSP Jul 25, 17:10 UTCJul 25, 23:20 UTC6h 10m
2026-07-25 ICE431 GLA → KEF Jul 25, 13:35 UTCJul 25, 15:40 UTC2h 5m
2026-07-25 ICE432 KEF → GLA Jul 25, 10:35 UTCJul 25, 12:15 UTC1h 40m
2026-07-25 ICE820 RDU → KEF Jul 25, 06:30 UTCJul 25, 06:50 UTC20m
2026-07-25 ICE820 RDU → KEF Jul 25, 01:10 UTCJul 25, 04:00 UTC2h 50m
2026-07-24 ICE821 KEF → RDU Jul 24, 17:05 UTCJul 24, 23:35 UTC6h 30m
2026-07-24 ICE73P BRU → KEF Jul 24, 12:10 UTCJul 24, 15:05 UTC2h 55m
2026-07-24 ICE74A KEF → BRU Jul 24, 07:45 UTCJul 24, 10:30 UTC2h 45m
2026-07-24 ICE38C YYZ → KEF Jul 24, 01:15 UTCJul 24, 06:00 UTC4h 45m
2026-07-23 ICE37B KEF → YYZ Jul 23, 22:00 UTCJul 23, 23:00 UTC1h 0m
2026-07-23 ICE37B KEF → YYZ Jul 23, 17:30 UTCJul 23, 17:45 UTC15m
2026-07-23 ICE521 FRA → KEF Jul 23, 12:35 UTCJul 23, 16:00 UTC3h 25m
2026-07-23 ICE520 KEF → FRA Jul 23, 07:50 UTCJul 23, 10:50 UTC3h 0m
2026-07-23 ICE42P BWI → KEF Jul 23, 01:25 UTCJul 23, 06:10 UTC4h 45m
2026-07-22 ICE43E KEF → BWI Jul 22, 20:55 UTCJul 22, 23:45 UTC2h 50m
2026-07-22 ICE43E KEF → BWI Jul 22, 17:30 UTCJul 22, 17:40 UTC10m
2026-07-22 ICE501 AMS → KEF Jul 22, 12:45 UTCJul 22, 15:45 UTC3h 0m
2026-07-21 ICE949 VCE → KEF Jul 21, 14:35 UTCJul 21, 19:00 UTC4h 25m
2026-07-21 ICE948 KEF → VCE Jul 21, 08:40 UTCJul 21, 12:20 UTC3h 40m
2026-07-21 ICE42P BWI → KEF Jul 21, 01:00 UTCJul 21, 06:10 UTC5h 10m
2026-07-20 ICE43E KEF → BWI Jul 20, 20:45 UTCJul 20, 23:05 UTC2h 20m
2026-07-20 ICE43E KEF → BWI Jul 20, 17:20 UTCJul 20, 17:35 UTC15m
2026-07-20 ICE5BK BGO → KEF Jul 20, 13:30 UTCJul 20, 15:45 UTC2h 15m
2026-07-20 ICE4BE KEF → BGO Jul 20, 10:30 UTCJul 20, 12:25 UTC1h 55m
2026-07-20 ICE820 RDU → KEF Jul 20, 01:05 UTCJul 20, 06:50 UTC5h 45m
2026-07-19 ICE821 KEF → RDU Jul 19, 21:35 UTCJul 19, 23:30 UTC1h 55m
2026-07-19 ICE821 KEF → RDU Jul 19, 17:05 UTCJul 19, 17:25 UTC20m
2026-07-19 ICE29E MAN → KEF Jul 19, 13:05 UTCJul 19, 15:45 UTC2h 40m
2026-07-19 ICE28T KEF → MAN Jul 19, 09:20 UTCJul 19, 11:30 UTC2h 10m
2026-07-19 ICE2B IAD → KEF Jul 19, 02:35 UTCJul 19, 07:50 UTC5h 15m
2026-07-18 ICE1A KEF → IAD Jul 18, 17:15 UTCJul 18, 23:20 UTC6h 5m
2026-07-18 ICE42P BWI → KEF Jul 18, 02:19 UTCJul 18, 07:30 UTC5h 11m
2026-07-17 ICE43E KEF → BWI Jul 17, 22:25 UTCJul 18, 00:55 UTC2h 30m
2026-07-17 ICE43E KEF → BWI Jul 17, 19:05 UTCJul 17, 19:15 UTC10m
2026-07-17 ICE2B IAD → KEF Jul 17, 00:55 UTCJul 17, 06:10 UTC5h 15m
2026-07-16 ICE1A KEF → IAD Jul 16, 21:19 UTCJul 16, 23:05 UTC1h 45m
2026-07-16 ICE1A - Jul 16, 17:10 UTCJul 16, 17:30 UTC20m
2026-07-16 ICE521 FRA → KEF Jul 16, 12:30 UTCJul 16, 15:45 UTC3h 15m
2026-07-16 ICE520 KEF → FRA Jul 16, 07:40 UTCJul 16, 10:59 UTC3h 20m
2026-07-15 ICE417 DUB → KEF Jul 15, 16:30 UTCJul 15, 18:35 UTC2h 5m
2026-07-15 ICE416 KEF → DUB Jul 15, 08:10 UTCJul 15, 10:25 UTC2h 15m
2026-07-15 ICE38C YYZ → KEF Jul 15, 01:00 UTCJul 15, 06:00 UTC5h 0m
2026-07-14 ICE37B KEF → YYZ Jul 14, 17:25 UTCJul 14, 22:55 UTC5h 29m
2026-07-14 ICE5BK BGO → KEF Jul 14, 13:40 UTCJul 14, 15:45 UTC2h 5m
2026-07-14 ICE4BE KEF → BGO Jul 14, 10:35 UTCJul 14, 12:35 UTC2h 0m
2026-07-14 ICE2B IAD → KEF Jul 14, 01:00 UTCJul 14, 06:30 UTC5h 30m

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

Mode-S 4CC52E frequently asked

What is Mode-S code 4CC52E?
4CC52E is an ICAO 24-bit transponder address. Assigned to TF-ICB.
Is 4CC52E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CC52E, octal 23142456, decimal 5,031,214.
What flights does 4CC52E operate?
Mode-S 4CC52E has broadcast 20 distinct callsigns, including ICE657, ICE43E, ICE656, ICE42P, ICE9V.