Apparatus

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sensors Mode-S transponder

4CC53A

ICAO 24-bit transponder address

Currently assigned to TF-ICL · BOEING 737 MAX 8

Hex
4CC53A
Octal
23142472
Decimal
5,031,226
Tail
TF-ICL
Type
B38M
No current signal · last broadcast Jul 26, 18:50 UTC
Flights observed
432
Distinct callsigns
20
Country
-
Last broadcast
Jul 26, 18:50 UTC

Last known position

Most recent position reported by Mode-S 4CC53A.

Callsign history 20 distinct

Callsign Airline Flights Last seen
ICE856 Icelandair 11 2026-07-22
ICE680 - 11 2026-07-12
ICE605 Icelandair 11 2026-07-24
ICE604 Icelandair 11 2026-07-25
ICE855 Icelandair 10 2026-07-21
ICE45R - 10 2026-07-10
ICE694 - 9 2026-07-11
ICE43E Icelandair 9 2026-07-23
ICE533 - 8 2026-06-17
ICE532 - 8 2026-06-17
ICE42P Icelandair 8 2026-07-24
ICE2B Icelandair 8 2026-06-13
ICE11P - 8 2026-07-15
ICE7EZ Icelandair 7 2026-07-22
ICE6EZ - 7 2026-07-22
ICE55L - 7 2026-06-27
ICE546 Icelandair 7 2026-07-21
ICE9L - 6 2026-07-10
ICE685 Icelandair 6 2026-07-26
ICE681 Icelandair 6 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ICE685 KEF → SEA Jul 26, 11:20 UTCJul 26, 18:35 UTC7h 15m
2026-07-26 ICE525 FRA → KEF Jul 26, 05:30 UTCJul 26, 09:00 UTC3h 31m
2026-07-26 ICE524 KEF → FRA Jul 26, 00:55 UTCJul 26, 03:40 UTC2h 45m
2026-07-25 ICE959 FAO → KEF Jul 25, 15:50 UTCJul 25, 20:25 UTC4h 35m
2026-07-25 ICE958 KEF → FAO Jul 25, 10:15 UTCJul 25, 14:00 UTC3h 45m
2026-07-25 ICE604 YYZ → KEF Jul 25, 08:00 UTCJul 25, 08:20 UTC20m
2026-07-25 ICE604 YYZ → KEF Jul 25, 03:15 UTCJul 25, 04:25 UTC1h 10m
2026-07-24 ICE605 KEF → YYZ Jul 24, 20:20 UTCJul 25, 01:40 UTC5h 20m
2026-07-24 ICE949 VCE → KEF Jul 24, 15:00 UTCJul 24, 19:05 UTC4h 5m
2026-07-24 ICE948 KEF → VCE Jul 24, 08:25 UTCJul 24, 12:10 UTC3h 45m
2026-07-24 ICE42P BWI → KEF Jul 24, 05:35 UTCJul 24, 05:55 UTC20m
2026-07-24 ICE42P BWI → KEF Jul 24, 01:10 UTCJul 24, 03:10 UTC2h 0m
2026-07-23 ICE43E KEF → BWI Jul 23, 21:35 UTCJul 23, 23:35 UTC2h 0m
2026-07-23 ICE43E KEF → BWI Jul 23, 17:15 UTCJul 23, 17:30 UTC15m
2026-07-23 ICE431 GLA → KEF Jul 23, 13:50 UTCJul 23, 15:55 UTC2h 5m
2026-07-23 ICE432 KEF → GLA Jul 23, 10:35 UTCJul 23, 12:25 UTC1h 50m
2026-07-23 ICE604 YYZ → KEF Jul 23, 07:55 UTCJul 23, 08:15 UTC20m
2026-07-23 ICE604 YYZ → KEF Jul 23, 03:30 UTCJul 23, 05:10 UTC1h 40m
2026-07-22 ICE605 KEF → YYZ Jul 22, 20:15 UTCJul 23, 02:00 UTC5h 45m
2026-07-22 ICE7EZ AMS → KEF Jul 22, 15:50 UTCJul 22, 18:45 UTC2h 55m
2026-07-22 ICE6EZ - Jul 22, 11:45 UTCJul 22, 14:15 UTC2h 30m
2026-07-22 ICE856 ORD → KEF Jul 22, 04:30 UTCJul 22, 05:25 UTC55m
2026-07-21 ICE855 KEF → ORD Jul 21, 20:00 UTCJul 22, 02:45 UTC6h 45m
2026-07-21 ICE547 CDG → KEF Jul 21, 15:15 UTCJul 21, 18:30 UTC3h 15m
2026-07-21 ICE546 KEF → CDG Jul 21, 11:05 UTCJul 21, 13:50 UTC2h 45m
2026-07-21 ICE49C CDG → KEF Jul 21, 05:45 UTCJul 21, 09:05 UTC3h 20m
2026-07-21 ICE48P KEF → CDG Jul 21, 01:35 UTCJul 21, 04:20 UTC2h 45m
2026-07-21 ICE116 - Jul 21, 00:00 UTCJul 21, 00:25 UTC25m
2026-07-20 ICE115 - Jul 20, 19:05 UTCJul 20, 19:25 UTC20m
2026-07-20 ICE75T OSL → KEF Jul 20, 15:10 UTCJul 20, 17:50 UTC2h 40m
2026-07-20 ICE76V - Jul 20, 11:30 UTCJul 20, 13:40 UTC2h 10m
2026-07-20 ICE12E SEA → KEF Jul 20, 02:45 UTCJul 20, 09:35 UTC6h 50m
2026-07-19 ICE681 KEF → SEA Jul 19, 19:35 UTCJul 20, 00:45 UTC5h 10m
2026-07-19 ICE681 KEF → SEA Jul 19, 17:20 UTCJul 19, 17:40 UTC20m
2026-07-19 ICE19A LGW → KEF Jul 19, 12:20 UTCJul 19, 15:25 UTC3h 5m
2026-07-19 ICE6H KEF → LGW Jul 19, 07:45 UTCJul 19, 10:15 UTC2h 30m
2026-07-18 ICE217 CPH → KEF Jul 18, 20:55 UTCJul 18, 23:55 UTC3h 0m
2026-07-18 ICE216 - Jul 18, 17:00 UTCJul 18, 19:40 UTC2h 40m
2026-07-18 ICE343 HEL → KEF Jul 18, 12:15 UTCJul 18, 15:35 UTC3h 20m
2026-07-18 ICE342 KEF → HEL Jul 18, 07:55 UTCJul 18, 10:55 UTC3h 0m
2026-07-17 ICE7LI MXP → KEF Jul 17, 21:15 UTCJul 18, 01:20 UTC4h 5m
2026-07-17 ICE6LC KEF → MXP Jul 17, 16:10 UTCJul 17, 19:35 UTC3h 25m
2026-07-16 ICE579 LIS → KEF Jul 16, 22:00 UTCJul 17, 02:20 UTC4h 20m
2026-07-16 ICE578 - Jul 16, 16:25 UTCJul 16, 20:45 UTC4h 20m
2026-07-16 ICE88E - Jul 16, 13:05 UTCJul 16, 13:25 UTC20m
2026-07-16 ICE88E - Jul 16, 06:40 UTCJul 16, 11:10 UTC4h 30m
2026-07-15 ICE11P KEF → SEA Jul 15, 20:10 UTCJul 16, 03:50 UTC7h 40m
2026-07-15 ICE547 - Jul 15, 15:30 UTCJul 15, 18:30 UTC3h 0m
2026-07-15 ICE546 - Jul 15, 11:05 UTCJul 15, 14:05 UTC3h 0m
2026-07-15 ICE525 FRA → KEF Jul 15, 05:45 UTCJul 15, 09:00 UTC3h 15m

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

Mode-S 4CC53A frequently asked

What is Mode-S code 4CC53A?
4CC53A is an ICAO 24-bit transponder address. Assigned to TF-ICL.
Is 4CC53A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CC53A, octal 23142472, decimal 5,031,226.
What flights does 4CC53A operate?
Mode-S 4CC53A has broadcast 20 distinct callsigns, including ICE856, ICE680, ICE605, ICE604, ICE855.