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sensors Mode-S transponder

4CAC83

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-HIJ · AGUSTA AW-169

Hex
4CAC83
Octal
23126203
Decimal
5,024,899
Country
IE
Tail
EI-HIJ
Type
A169
No current signal · last broadcast 11h ago
Flights observed
100
Distinct callsigns
3
Country
IE
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S 4CAC83.

Country allocation

The ICAO 24-bit address 4CAC83 falls within the block assigned to Ireland (IE) by ICAO Annex 10, Volume III. Every aircraft registered in Ireland 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 3 distinct

Callsign Airline Flights Last seen
LID661 - 94 2026-07-20
LID701 - 3 2026-05-29
LID641 - 3 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 LID661 - Jul 20, 06:10 UTCJul 20, 06:50 UTC40m
2026-07-18 LID661 - Jul 18, 17:05 UTCJul 18, 17:45 UTC40m
2026-07-16 LID661 - Jul 16, 07:40 UTCJul 16, 08:55 UTC1h 15m
2026-07-13 LID661 - Jul 13, 14:10 UTCJul 13, 14:45 UTC35m
2026-07-12 LID661 - Jul 12, 12:30 UTCJul 12, 12:35 UTC5m
2026-07-10 LID661 - Jul 10, 13:20 UTCJul 10, 15:30 UTC2h 10m
2026-07-09 LID661 - Jul 9, 17:35 UTCJul 9, 17:40 UTC5m
2026-07-08 LID661 - Jul 8, 14:35 UTCJul 8, 14:45 UTC10m
2026-07-08 LID661 - Jul 8, 13:55 UTCJul 8, 14:10 UTC15m
2026-07-08 LID661 - Jul 8, 08:25 UTCJul 8, 08:40 UTC15m
2026-07-07 LID661 - Jul 7, 13:00 UTCJul 7, 13:10 UTC10m
2026-07-06 LID661 - Jul 6, 10:15 UTCJul 6, 10:30 UTC15m
2026-07-05 LID661 - Jul 5, 17:30 UTCJul 5, 18:10 UTC40m
2026-07-05 LID661 - Jul 5, 10:10 UTCJul 5, 10:50 UTC40m
2026-07-03 LID661 - Jul 3, 12:25 UTCJul 3, 12:40 UTC15m
2026-07-03 LID661 - Jul 3, 11:35 UTCJul 3, 11:45 UTC10m
2026-07-03 LID661 - Jul 3, 06:05 UTCJul 3, 06:50 UTC45m
2026-07-01 LID661 - Jul 1, 09:40 UTCJul 1, 09:50 UTC10m
2026-07-01 LID661 - Jul 1, 08:40 UTCJul 1, 08:50 UTC10m
2026-06-28 LID641 - Jun 28, 05:04 UTCJun 28, 06:20 UTC1h 15m
2026-06-27 LID661 - Jun 27, 15:45 UTCJun 27, 17:34 UTC1h 50m
2026-06-27 LID661 - Jun 27, 11:09 UTCJun 27, 11:25 UTC15m
2026-06-27 LID661 - Jun 27, 07:45 UTCJun 27, 09:19 UTC1h 35m
2026-06-27 LID661 - Jun 27, 05:10 UTCJun 27, 05:19 UTC10m
2026-06-27 LID641 - Jun 27, 04:15 UTCJun 27, 05:04 UTC50m
2026-06-27 LID641 - Jun 27, 02:50 UTCJun 27, 03:15 UTC25m
2026-06-26 LID661 - Jun 26, 19:04 UTCJun 26, 19:24 UTC20m
2026-06-26 LID661 - Jun 26, 12:44 UTCJun 26, 13:30 UTC45m
2026-06-26 LID661 - Jun 26, 07:14 UTCJun 26, 09:24 UTC2h 10m
2026-06-26 LID661 - Jun 26, 06:54 UTCJun 26, 07:05 UTC10m
2026-06-25 LID661 - Jun 25, 09:05 UTCJun 25, 10:15 UTC1h 10m
2026-06-24 LID661 - Jun 24, 16:54 UTCJun 24, 17:05 UTC10m
2026-06-24 LID661 - Jun 24, 13:30 UTCJun 24, 13:40 UTC10m
2026-06-24 LID661 - Jun 24, 08:55 UTCJun 24, 11:09 UTC2h 15m
2026-06-23 LID661 - Jun 23, 17:34 UTCJun 23, 18:25 UTC50m
2026-06-23 LID661 - Jun 23, 08:45 UTCJun 23, 09:49 UTC1h 5m
2026-06-21 LID661 - Jun 21, 07:59 UTCJun 21, 09:24 UTC1h 25m
2026-06-20 LID661 - Jun 20, 11:05 UTCJun 20, 12:19 UTC1h 15m
2026-06-18 LID661 - Jun 18, 06:30 UTCJun 18, 08:30 UTC2h 0m
2026-06-17 LID661 - Jun 17, 07:50 UTCJun 17, 09:35 UTC1h 45m
2026-06-16 LID661 - Jun 16, 09:00 UTCJun 16, 11:05 UTC2h 5m
2026-06-16 LID661 - Jun 16, 07:05 UTCJun 16, 07:20 UTC15m
2026-06-15 LID661 - Jun 15, 17:15 UTCJun 15, 17:54 UTC40m
2026-06-15 LID661 - Jun 15, 12:45 UTCJun 15, 13:00 UTC15m
2026-06-15 LID661 - Jun 15, 09:54 UTCJun 15, 10:35 UTC40m
2026-06-12 LID661 - Jun 12, 16:20 UTCJun 12, 17:15 UTC55m
2026-06-09 LID661 - Jun 9, 10:20 UTCJun 9, 11:05 UTC45m
2026-06-09 LID661 - Jun 9, 08:25 UTCJun 9, 09:10 UTC45m
2026-06-09 LID661 - Jun 9, 07:10 UTCJun 9, 07:50 UTC40m
2026-06-09 LID661 - Jun 9, 06:20 UTCJun 9, 06:50 UTC30m

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 EI-HIJ page for operator, model, and routing details .

Mode-S 4CAC83 frequently asked

What is Mode-S code 4CAC83?
4CAC83 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HIJ.
Where is Mode-S 4CAC83 registered?
Mode-S code 4CAC83 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAC83 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAC83, octal 23126203, decimal 5,024,899.
What flights does 4CAC83 operate?
Mode-S 4CAC83 has broadcast 3 distinct callsigns, including LID661, LID701, LID641.