Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4CAD29

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-HET · BOEING 737 MAX 8

Hex
4CAD29
Octal
23126451
Decimal
5,025,065
Country
IE
Tail
EI-HET
Type
B38M
Broadcasting now · callsign RYR78RM · 35,000 ft
Flights observed
265
Distinct callsigns
20
Country
IE
Last broadcast
1h ago

Current position

4CAD29 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CAD29 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 20 distinct

Callsign Airline Flights Last seen
RYR8YY Ryanair 8 2026-05-25
RYR77CN Ryanair 8 2026-05-25
RYR61NG Ryanair 8 2026-05-28
RYR2YR Ryanair 8 2026-05-28
RYR98HW Ryanair 7 2026-05-26
RYR103K Ryanair 7 2026-05-26
RYR76WJ Ryanair 6 2026-05-25
RYR58ZM Ryanair 6 2026-05-25
RYR42MY Ryanair 6 2026-05-25
RYR28LA Ryanair 5 2026-05-25
RYR9YD Ryanair 3 2026-05-29
RYR8RZ Ryanair 3 2026-05-24
RYR584E Ryanair 3 2026-05-29
RYR48VZ Ryanair 3 2026-05-29
RYR45ZB Ryanair 3 2026-04-17
RYR44PB Ryanair 3 2026-05-29
RYR1PY Ryanair 3 2026-04-17
RYR1NH Ryanair 3 2026-04-24
RYR98ST Ryanair 2 2026-05-17
RYR98AR Ryanair 2 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 RYR241F - Jun 2, 17:40 UTCJun 2, 18:15 UTC35m
2026-06-02 RYR408P - Jun 2, 15:40 UTCJun 2, 16:30 UTC50m
2026-06-02 RYR73ZU BVA → BRI Jun 2, 12:05 UTCJun 2, 14:10 UTC2h 5m
2026-06-02 RYR86QR BRI → BVA Jun 2, 08:20 UTCJun 2, 10:30 UTC2h 10m
2026-06-02 RYR442N BGY → BRI Jun 2, 06:25 UTCJun 2, 07:25 UTC1h 0m
2026-06-02 RYR372Y BRI → BGY Jun 2, 03:55 UTCJun 2, 05:20 UTC1h 25m
2026-06-01 RYR123X EDI → BRI Jun 1, 23:20 UTCJun 2, 02:05 UTC2h 45m
2026-06-01 RYR7FJ SJJ → CRL Jun 1, 19:40 UTCJun 1, 22:25 UTC2h 45m
2026-06-01 RYR62EG EDI → AGP Jun 1, 14:55 UTCJun 1, 17:55 UTC3h 0m
2026-06-01 RYR595F MLA → EDI Jun 1, 10:05 UTCJun 1, 13:50 UTC3h 45m
2026-06-01 RYR422B EDI → MLA Jun 1, 05:30 UTCJun 1, 08:50 UTC3h 20m
2026-05-31 RYR156P ORK → EDI May 31, 22:10 UTCMay 31, 23:05 UTC55m
2026-05-31 RYR8VP BVE → OPO May 31, 20:25 UTCMay 31, 21:20 UTC55m
2026-05-31 RYR72PP PMO → BCN May 31, 17:10 UTCMay 31, 19:40 UTC2h 30m
2026-05-31 RYR28TV EDI → PSA May 31, 12:40 UTCMay 31, 15:00 UTC2h 20m
2026-05-31 RYR8G BUD → ATH May 31, 08:50 UTCMay 31, 11:35 UTC2h 45m
2026-05-30 RYR8CX BLL → MAD May 30, 19:35 UTCMay 30, 22:05 UTC2h 30m
2026-05-30 RYR77SY VLC → NTE May 30, 16:00 UTCMay 30, 18:20 UTC2h 20m
2026-05-30 RYR8UL AGP → OPO May 30, 14:20 UTCMay 30, 15:00 UTC40m
2026-05-30 RYR86GY EDI → DUB May 30, 12:25 UTCMay 30, 13:05 UTC40m
2026-05-30 RYR73KY BCN → EDI May 30, 09:05 UTCMay 30, 11:30 UTC2h 25m
2026-05-30 RYR36PL EDI → BCN May 30, 05:15 UTCMay 30, 07:35 UTC2h 20m
2026-05-29 RYR74EM BER → EDI May 29, 21:05 UTCMay 29, 22:55 UTC1h 50m
2026-05-29 RYR44PB OPO → BER May 29, 16:30 UTCMay 29, 19:15 UTC2h 45m
2026-05-29 RYR48VZ BER → OPO May 29, 12:40 UTCMay 29, 15:30 UTC2h 50m
2026-05-29 RYR9YD BDS → BLQ May 29, 07:45 UTCMay 29, 10:10 UTC2h 25m
2026-05-29 RYR584E BER → PMI May 29, 04:10 UTCMay 29, 06:20 UTC2h 10m
2026-05-28 RYR70FL FAO → BER May 28, 15:55 UTCMay 28, 19:05 UTC3h 10m
2026-05-28 RYR24AN BER → FAO May 28, 11:40 UTCMay 28, 14:55 UTC3h 15m
2026-05-28 RYR61NG REU → ORK May 28, 08:05 UTCMay 28, 10:20 UTC2h 15m
2026-05-28 RYR2YR KRK → BRS May 28, 04:40 UTCMay 28, 06:40 UTC2h 0m
2026-05-27 RYR44DW - May 27, 19:40 UTCMay 27, 21:00 UTC1h 20m
2026-05-27 RYR2789 BER → STN May 27, 17:30 UTCMay 27, 19:00 UTC1h 30m
2026-05-27 RYR95CH OTP → BER May 27, 14:45 UTCMay 27, 16:40 UTC1h 55m
2026-05-27 RYR3EM BER → OTP May 27, 11:55 UTCMay 27, 13:35 UTC1h 40m
2026-05-27 RYR91SP MAD → BER May 27, 08:30 UTCMay 27, 10:55 UTC2h 25m
2026-05-27 RYR39DH BER → MAD May 27, 04:14 UTCMay 27, 06:55 UTC2h 40m
2026-05-26 RYR61NG REU → ORK May 26, 19:40 UTCMay 26, 21:44 UTC2h 5m
2026-05-26 RYR2YR KRK → BRS May 26, 16:05 UTCMay 26, 18:10 UTC2h 5m
2026-05-26 RYR103K LIS → BER May 26, 11:09 UTCMay 26, 14:05 UTC2h 55m
2026-05-26 RYR98HW BER → LIS May 26, 06:34 UTCMay 26, 09:55 UTC3h 20m
2026-05-25 RYR8YY EDI → CPH May 25, 19:20 UTCMay 25, 20:40 UTC1h 20m
2026-05-25 RYR77CN BER → STN May 25, 17:05 UTCMay 25, 18:25 UTC1h 20m
2026-05-25 RYR28LA CFU → BER May 25, 14:20 UTCMay 25, 16:15 UTC1h 55m
2026-05-25 RYR76WJ BER → CFU May 25, 11:10 UTCMay 25, 13:05 UTC1h 55m
2026-05-25 RYR42MY HAM → DUB May 25, 07:35 UTCMay 25, 10:05 UTC2h 30m
2026-05-25 RYR58ZM BER → CTA May 25, 04:20 UTCMay 25, 06:30 UTC2h 10m
2026-05-24 RYR88JV BCN → BER May 24, 18:40 UTCMay 24, 20:55 UTC2h 15m
2026-05-24 RYR55VV BER → BCN May 24, 15:10 UTCMay 24, 17:10 UTC2h 0m
2026-05-24 RYR97WV BGY → BER May 24, 13:00 UTCMay 24, 14:20 UTC1h 20m

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

Mode-S 4CAD29 frequently asked

What is Mode-S code 4CAD29?
4CAD29 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HET.
Where is Mode-S 4CAD29 registered?
Mode-S code 4CAD29 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAD29 broadcasting right now?
Yes. Mode-S 4CAD29 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAD29, octal 23126451, decimal 5,025,065.
What flights does 4CAD29 operate?
Mode-S 4CAD29 has broadcast 20 distinct callsigns, including RYR8YY, RYR77CN, RYR61NG, RYR2YR, RYR98HW.