Apparatus

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sensors Mode-S transponder

34720D

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-NRL · AIRBUS HELICOPTERS EC-135/635

Hex
34720D
Octal
15071015
Decimal
3,437,069
Country
ES
Tail
EC-NRL
Type
EC35
No current signal · last broadcast 1d ago
Flights observed
68
Distinct callsigns
2
Country
ES
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 34720D.

Country allocation

The ICAO 24-bit address 34720D falls within the block assigned to Spain (ES) by ICAO Annex 10, Volume III. Every aircraft registered in Spain 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 2 distinct

Callsign Airline Flights Last seen
MEECNRL - 59 2026-06-17
COLEYRE1 - 9 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-17 MEECNRL - Jun 17, 14:45 UTCJun 17, 15:10 UTC25m
2026-06-17 MEECNRL - Jun 17, 09:50 UTCJun 17, 10:20 UTC30m
2026-06-16 MEECNRL - Jun 16, 10:00 UTCJun 16, 10:09 UTC10m
2026-06-16 MEECNRL - Jun 16, 09:04 UTCJun 16, 09:20 UTC15m
2026-06-12 MEECNRL - Jun 12, 12:00 UTCJun 12, 12:15 UTC15m
2026-06-12 MEECNRL - Jun 12, 10:35 UTCJun 12, 10:45 UTC10m
2026-06-12 MEECNRL - Jun 12, 09:05 UTCJun 12, 09:45 UTC40m
2026-06-12 MEECNRL - Jun 12, 06:00 UTCJun 12, 06:15 UTC15m
2026-06-11 MEECNRL - Jun 11, 10:05 UTCJun 11, 10:35 UTC30m
2026-06-11 MEECNRL - Jun 11, 07:50 UTCJun 11, 08:00 UTC10m
2026-06-10 MEECNRL - Jun 10, 08:50 UTCJun 10, 09:00 UTC10m
2026-06-08 MEECNRL - Jun 8, 16:10 UTCJun 8, 16:40 UTC30m
2026-06-08 MEECNRL - Jun 8, 12:35 UTCJun 8, 13:15 UTC40m
2026-06-08 MEECNRL - Jun 8, 11:30 UTCJun 8, 12:15 UTC45m
2026-06-08 MEECNRL - Jun 8, 08:20 UTCJun 8, 08:35 UTC15m
2026-06-05 MEECNRL - Jun 5, 10:20 UTCJun 5, 10:55 UTC35m
2026-06-05 MEECNRL - Jun 5, 09:00 UTCJun 5, 09:55 UTC55m
2026-06-03 MEECNRL - Jun 3, 05:50 UTCJun 3, 06:05 UTC15m
2026-06-02 MEECNRL - Jun 2, 15:55 UTCJun 2, 16:30 UTC35m
2026-06-02 MEECNRL - Jun 2, 13:55 UTCJun 2, 14:05 UTC10m
2026-06-01 MEECNRL - Jun 1, 16:40 UTCJun 1, 17:00 UTC20m
2026-06-01 MEECNRL - Jun 1, 10:45 UTCJun 1, 10:55 UTC10m
2026-06-01 MEECNRL - Jun 1, 09:50 UTCJun 1, 10:00 UTC10m
2026-05-31 MEECNRL - May 31, 14:25 UTCMay 31, 14:35 UTC10m
2026-05-31 MEECNRL - May 31, 12:55 UTCMay 31, 13:05 UTC10m
2026-05-30 MEECNRL - May 30, 11:45 UTCMay 30, 12:00 UTC15m
2026-05-29 MEECNRL - May 29, 11:40 UTCMay 29, 12:20 UTC40m
2026-05-27 MEECNRL - May 27, 07:40 UTCMay 27, 08:10 UTC30m
2026-05-26 MEECNRL - May 26, 10:54 UTCMay 26, 11:09 UTC15m
2026-05-26 MEECNRL - May 26, 09:35 UTCMay 26, 10:10 UTC35m
2026-05-23 MEECNRL - May 23, 13:35 UTCMay 23, 13:50 UTC15m
2026-05-23 MEECNRL - May 23, 11:00 UTCMay 23, 11:10 UTC10m
2026-05-23 MEECNRL - May 23, 10:15 UTCMay 23, 10:30 UTC15m
2026-05-18 MEECNRL - May 18, 06:45 UTCMay 18, 07:15 UTC30m
2026-05-17 MEECNRL - May 17, 17:15 UTCMay 17, 17:45 UTC30m
2026-05-16 MEECNRL - May 16, 16:05 UTCMay 16, 16:40 UTC35m
2026-05-16 MEECNRL - May 16, 14:41 UTCMay 16, 15:10 UTC30m
2026-05-16 MEECNRL - May 16, 13:31 UTCMay 16, 14:16 UTC45m
2026-05-15 MEECNRL - May 15, 17:50 UTCMay 15, 18:05 UTC15m
2026-05-15 MEECNRL - May 15, 15:50 UTCMay 15, 16:30 UTC40m
2026-05-15 MEECNRL - May 15, 13:50 UTCMay 15, 14:25 UTC35m
2026-05-15 MEECNRL - May 15, 13:10 UTCMay 15, 13:20 UTC10m
2026-05-15 MEECNRL - May 15, 12:35 UTCMay 15, 12:45 UTC10m
2026-05-15 MEECNRL - May 15, 09:45 UTCMay 15, 09:55 UTC10m
2026-05-15 MEECNRL - May 15, 05:55 UTCMay 15, 06:05 UTC10m
2026-05-14 MEECNRL - May 14, 13:20 UTCMay 14, 13:35 UTC15m
2026-05-13 MEECNRL - May 13, 10:45 UTCMay 13, 13:00 UTC2h 15m
2026-05-13 MEECNRL - May 13, 09:40 UTCMay 13, 10:20 UTC40m
2026-05-13 MEECNRL - May 13, 06:55 UTCMay 13, 07:05 UTC10m
2026-05-11 MEECNRL - May 11, 18:20 UTCMay 11, 18:55 UTC35m

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 EC-NRL page for operator, model, and routing details .

Mode-S 34720D frequently asked

What is Mode-S code 34720D?
34720D is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-NRL.
Where is Mode-S 34720D registered?
Mode-S code 34720D is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 34720D broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 34720D, octal 15071015, decimal 3,437,069.
What flights does 34720D operate?
Mode-S 34720D has broadcast 2 distinct callsigns, including MEECNRL, COLEYRE1.