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sensors Mode-S transponder

4CC2A3

ICAO 24-bit transponder address · allocated to Iceland

Currently assigned to TF-FIN · BOEING 757-200

Hex
4CC2A3
Octal
23141243
Decimal
5,030,563
Country
IS
Tail
TF-FIN
Type
B752
No current signal · last broadcast 7h ago
Flights observed
239
Distinct callsigns
20
Country
IS
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 4CC2A3.

Country allocation

The ICAO 24-bit address 4CC2A3 falls within the block assigned to Iceland (IS) by ICAO Annex 10, Volume III. Every aircraft registered in Iceland receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
ICE670 - 34 2026-07-13
ICE671 - 29 2026-07-11
ICE28P - 21 2026-07-12
ICE27M - 12 2026-07-12
ICE319 - 10 2026-07-10
ICE318 - 10 2026-07-10
ICE217 - 8 2026-07-10
ICE216 - 8 2026-07-10
ICE597 - 7 2026-06-20
ICE596 - 7 2026-06-20
ICE8K - 5 2026-07-03
ICE7J - 5 2026-07-03
ICE501 - 5 2026-06-30
ICE500 - 5 2026-06-30
ICE455 - 5 2026-06-29
ICE454 - 5 2026-06-29
ICE85V Icelandair 4 2026-06-10
ICE84H Icelandair 4 2026-06-10
ICE521 Icelandair 4 2026-06-14
ICE520 - 4 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ICE63L - Jul 13, 14:55 UTCJul 13, 19:30 UTC4h 35m
2026-07-13 ICE62L - Jul 13, 08:10 UTCJul 13, 12:25 UTC4h 15m
2026-07-13 ICE670 - Jul 13, 05:25 UTCJul 13, 05:45 UTC20m
2026-07-12 ICE670 - Jul 12, 22:50 UTCJul 13, 00:50 UTC2h 0m
2026-07-12 ICE27M KEF → DEN Jul 12, 11:10 UTCJul 12, 18:20 UTC7h 10m
2026-07-12 ICE28P - Jul 12, 09:15 UTCJul 12, 09:35 UTC20m
2026-07-12 ICE28P - Jul 12, 02:45 UTCJul 12, 04:45 UTC2h 0m
2026-07-11 ICE671 - Jul 11, 17:30 UTCJul 12, 00:50 UTC7h 20m
2026-07-11 ICE9L ZRH → KEF Jul 11, 12:30 UTCJul 11, 16:10 UTC3h 40m
2026-07-11 ICE12C KEF → ZRH Jul 11, 07:40 UTCJul 11, 11:00 UTC3h 20m
2026-07-10 ICE217 CPH → KEF Jul 10, 20:40 UTCJul 10, 23:35 UTC2h 55m
2026-07-10 ICE216 KEF → CPH Jul 10, 16:45 UTCJul 10, 19:25 UTC2h 40m
2026-07-10 ICE319 - Jul 10, 12:05 UTCJul 10, 14:35 UTC2h 30m
2026-07-10 ICE318 KEF → OSL Jul 10, 08:05 UTCJul 10, 10:25 UTC2h 20m
2026-07-09 ICE217 CPH → KEF Jul 9, 20:55 UTCJul 9, 23:45 UTC2h 50m
2026-07-09 ICE216 KEF → CPH Jul 9, 16:40 UTCJul 9, 19:30 UTC2h 50m
2026-07-09 ICE670 - Jul 9, 06:15 UTCJul 9, 06:30 UTC15m
2026-07-08 ICE670 - Jul 8, 23:50 UTCJul 9, 01:40 UTC1h 50m
2026-07-08 ICE27M - Jul 8, 11:20 UTCJul 8, 18:35 UTC7h 15m
2026-07-08 ICE28P - Jul 8, 09:30 UTCJul 8, 09:50 UTC20m
2026-07-08 ICE28P - Jul 8, 03:10 UTCJul 8, 05:00 UTC1h 50m
2026-07-07 ICE671 KEF → DEN Jul 7, 18:05 UTCJul 8, 01:35 UTC7h 30m
2026-07-07 ICE319 - Jul 7, 12:15 UTCJul 7, 14:45 UTC2h 30m
2026-07-07 ICE318 KEF → OSL Jul 7, 08:10 UTCJul 7, 10:25 UTC2h 15m
2026-07-06 ICE7LI MXP → KEF Jul 6, 13:35 UTCJul 6, 17:45 UTC4h 10m
2026-07-06 ICE6LC KEF → MXP Jul 6, 08:10 UTCJul 6, 11:55 UTC3h 45m
2026-07-04 ICE217 - Jul 4, 20:55 UTCJul 4, 23:55 UTC3h 0m
2026-07-04 ICE216 KEF → CPH Jul 4, 16:50 UTCJul 4, 19:30 UTC2h 40m
2026-07-04 ICE28P - Jul 4, 09:00 UTCJul 4, 09:20 UTC20m
2026-07-04 ICE28P - Jul 4, 02:35 UTCJul 4, 04:30 UTC1h 55m
2026-07-03 ICE671 KEF → DEN Jul 3, 22:20 UTCJul 4, 00:50 UTC2h 30m
2026-07-03 ICE671 KEF → DEN Jul 3, 17:25 UTCJul 3, 17:40 UTC15m
2026-07-03 ICE7J - Jul 3, 12:10 UTCJul 3, 15:20 UTC3h 10m
2026-07-03 ICE8K - Jul 3, 08:00 UTCJul 3, 10:40 UTC2h 40m
2026-07-02 ICE547 - Jul 2, 16:30 UTCJul 2, 19:40 UTC3h 10m
2026-07-02 ICE546 - Jul 2, 11:40 UTCJul 2, 14:25 UTC2h 45m
2026-07-01 ICE217 - Jul 1, 20:45 UTCJul 1, 23:45 UTC3h 0m
2026-07-01 ICE216 KEF → CPH Jul 1, 16:45 UTCJul 1, 19:25 UTC2h 40m
2026-07-01 ICE319 - Jul 1, 12:00 UTCJul 1, 14:25 UTC2h 25m
2026-07-01 ICE318 KEF → OSL Jul 1, 08:10 UTCJul 1, 10:25 UTC2h 15m
2026-06-30 ICE75T OSL → KEF Jun 30, 20:10 UTCJun 30, 22:40 UTC2h 30m
2026-06-30 ICE76V KEF → OSL Jun 30, 16:45 UTCJun 30, 19:00 UTC2h 15m
2026-06-30 ICE501 - Jun 30, 12:35 UTCJun 30, 15:20 UTC2h 45m
2026-06-30 ICE500 - Jun 30, 08:00 UTCJun 30, 10:40 UTC2h 40m
2026-06-29 ICE455 - Jun 29, 20:44 UTCJun 29, 23:19 UTC2h 35m
2026-06-29 ICE454 KEF → LHR Jun 29, 16:29 UTCJun 29, 19:00 UTC2h 30m
2026-06-29 ICE319 - Jun 29, 12:45 UTCJun 29, 15:09 UTC2h 25m
2026-06-29 ICE318 KEF → OSL Jun 29, 08:14 UTCJun 29, 10:29 UTC2h 15m
2026-06-28 ICE217 - Jun 28, 20:50 UTCJun 28, 23:29 UTC2h 40m
2026-06-28 ICE216 KEF → CPH Jun 28, 16:35 UTCJun 28, 19:25 UTC2h 50m

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

Mode-S 4CC2A3 frequently asked

What is Mode-S code 4CC2A3?
4CC2A3 is an ICAO 24-bit transponder address. Allocated to Iceland. Assigned to TF-FIN.
Where is Mode-S 4CC2A3 registered?
Mode-S code 4CC2A3 is allocated to Iceland (IS). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CC2A3 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CC2A3, octal 23141243, decimal 5,030,563.
What flights does 4CC2A3 operate?
Mode-S 4CC2A3 has broadcast 20 distinct callsigns, including ICE670, ICE671, ICE28P, ICE27M, ICE319.