sensors Mode-S transponder

4CAD73

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-KBR · AIRBUS A-320neo

Hex
4CAD73
Octal
23126563
Decimal
5,025,139
Country
IE
Tail
EI-KBR
Type
A20N
No current signal · last broadcast 6h ago
Flights observed
38
Distinct callsigns
11
Country
IE
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 4CAD73.

Country allocation

The ICAO 24-bit address 4CAD73 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 11 distinct

Callsign Airline Flights Last seen
AYN7111 - 10 2026-07-18
AYN7112 - 8 2026-07-18
AYN7078 - 5 2026-07-09
AYN7926 - 3 2026-06-25
AYN7077 - 3 2026-07-04
AYN7906 - 2 2026-06-29
AYN7905 - 2 2026-06-29
AYN7153 - 2 2026-07-12
AYN7952 - 1 2026-06-18
AYN7951 - 1 2026-06-17
AYN7154 - 1 2026-07-12

Recent flights last 38

DateFlightRouteTakeoffLandingDuration
2026-07-18 AYN7112 - Jul 18, 12:20 UTCJul 18, 14:00 UTC1h 40m
2026-07-18 AYN7111 - Jul 18, 09:05 UTCJul 18, 11:15 UTC2h 10m
2026-07-15 AYN7112 - Jul 15, 11:55 UTCJul 15, 13:40 UTC1h 45m
2026-07-15 AYN7111 - Jul 15, 08:15 UTCJul 15, 10:30 UTC2h 15m
2026-07-12 AYN7154 - Jul 12, 14:35 UTCJul 12, 15:01 UTC25m
2026-07-12 AYN7153 - Jul 12, 08:20 UTCJul 12, 13:45 UTC5h 25m
2026-07-11 AYN7112 - Jul 11, 12:50 UTCJul 12, 07:20 UTC18h 30m
2026-07-11 AYN7112 - Jul 11, 11:55 UTCJul 12, 07:20 UTC19h 25m
2026-07-11 AYN7111 - Jul 11, 08:10 UTCJul 11, 10:25 UTC2h 15m
2026-07-09 AYN7078 - Jul 9, 06:55 UTCJul 9, 07:35 UTC40m
2026-07-08 AYN7112 - Jul 8, 11:45 UTCJul 9, 06:00 UTC18h 15m
2026-07-08 AYN7111 - Jul 8, 08:15 UTCJul 8, 10:30 UTC2h 15m
2026-07-04 AYN7078 - Jul 4, 09:20 UTCJul 4, 10:00 UTC40m
2026-07-04 AYN7077 - Jul 4, 07:30 UTCJul 4, 08:15 UTC45m
2026-07-01 AYN7112 - Jul 1, 11:30 UTCJul 1, 13:20 UTC1h 50m
2026-07-01 AYN7111 - Jul 1, 08:05 UTCJul 1, 10:15 UTC2h 10m
2026-06-29 AYN7906 - Jun 29, 08:09 UTCJun 29, 08:50 UTC40m
2026-06-29 AYN7905 - Jun 29, 06:24 UTCJun 29, 07:25 UTC1h 0m
2026-06-25 AYN7926 - Jun 25, 02:10 UTCJun 25, 02:59 UTC50m
2026-06-24 AYN7906 KUT → BUS Jun 24, 07:30 UTCJun 25, 00:40 UTC17h 10m
2026-06-23 AYN7905 - Jun 23, 16:29 UTCJun 24, 05:40 UTC13h 10m
2026-06-23 AYN7926 - Jun 23, 05:59 UTCJun 24, 04:24 UTC22h 25m
2026-06-20 AYN7926 - Jun 20, 07:09 UTCJun 20, 07:59 UTC50m
2026-06-18 AYN7952 - Jun 18, 09:05 UTCJun 18, 20:35 UTC11h 30m
2026-06-17 AYN7951 - Jun 17, 13:30 UTCJun 18, 07:35 UTC18h 5m
2026-06-17 AYN7153 - Jun 17, 12:15 UTCJun 17, 12:40 UTC25m
2026-06-15 AYN7078 - Jun 15, 09:49 UTCJun 15, 10:35 UTC45m
2026-06-15 AYN7077 - Jun 15, 08:00 UTCJun 15, 08:49 UTC50m
2026-06-10 AYN7112 - Jun 10, 11:40 UTCJun 10, 13:35 UTC1h 55m
2026-06-10 AYN7111 - Jun 10, 10:10 UTCJun 10, 10:30 UTC20m
2026-06-10 AYN7111 - Jun 10, 08:10 UTCJun 10, 09:30 UTC1h 20m
2026-06-06 AYN7111 - Jun 6, 08:10 UTCJun 6, 13:25 UTC5h 15m
2026-06-04 AYN7078 - Jun 4, 06:55 UTCJun 4, 07:40 UTC45m
2026-06-03 AYN7112 - Jun 3, 11:35 UTCJun 4, 05:50 UTC18h 15m
2026-06-03 AYN7111 - Jun 3, 10:20 UTCJun 3, 10:35 UTC15m
2026-06-03 AYN7111 - Jun 3, 08:30 UTCJun 3, 09:35 UTC1h 5m
2026-06-01 AYN7078 - Jun 1, 10:00 UTCJun 1, 10:40 UTC40m
2026-06-01 AYN7077 - Jun 1, 08:05 UTCJun 1, 09:00 UTC55m

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

Mode-S 4CAD73 frequently asked

What is Mode-S code 4CAD73?
4CAD73 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-KBR.
Where is Mode-S 4CAD73 registered?
Mode-S code 4CAD73 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAD73 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAD73, octal 23126563, decimal 5,025,139.
What flights does 4CAD73 operate?
Mode-S 4CAD73 has broadcast 11 distinct callsigns, including AYN7111, AYN7112, AYN7078, AYN7926, AYN7077.