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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 8d ago
Flights observed
112
Distinct callsigns
2
Country
ES
Last broadcast
8d 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 - 102 2026-07-25
COLEYRE1 - 9 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 MEECNRL - Jul 25, 14:25 UTCJul 25, 14:55 UTC30m
2026-07-25 MEECNRL - Jul 25, 13:50 UTCJul 25, 14:00 UTC10m
2026-07-24 MEECNRL - Jul 24, 16:10 UTCJul 24, 16:20 UTC10m
2026-07-24 MEECNRL - Jul 24, 11:35 UTCJul 24, 12:40 UTC1h 5m
2026-07-23 MEECNRL - Jul 23, 10:40 UTCJul 23, 10:50 UTC10m
2026-07-21 MEECNRL - Jul 21, 16:50 UTCJul 21, 17:00 UTC10m
2026-07-21 MEECNRL - Jul 21, 10:35 UTCJul 21, 10:45 UTC10m
2026-07-21 MEECNRL - Jul 21, 09:50 UTCJul 21, 10:00 UTC10m
2026-07-19 MEECNRL - Jul 19, 13:25 UTCJul 19, 13:35 UTC10m
2026-07-15 MEECNRL - Jul 15, 11:55 UTCJul 15, 12:05 UTC10m
2026-07-14 MEECNRL - Jul 14, 15:00 UTCJul 14, 15:15 UTC15m
2026-07-14 MEECNRL - Jul 14, 14:00 UTCJul 14, 14:15 UTC15m
2026-07-13 MEECNRL - Jul 13, 07:25 UTCJul 13, 08:40 UTC1h 15m
2026-07-12 MEECNRL - Jul 12, 13:50 UTCJul 12, 14:05 UTC15m
2026-07-12 MEECNRL - Jul 12, 08:25 UTCJul 12, 08:35 UTC10m
2026-07-12 MEECNRL - Jul 12, 07:40 UTCJul 12, 07:55 UTC15m
2026-07-11 MEECNRL - Jul 11, 10:35 UTCJul 11, 10:50 UTC15m
2026-07-11 MEECNRL - Jul 11, 09:15 UTCJul 11, 09:55 UTC40m
2026-07-09 MEECNRL - Jul 9, 16:20 UTCJul 9, 16:50 UTC30m
2026-07-09 MEECNRL - Jul 9, 15:00 UTCJul 9, 15:40 UTC40m
2026-07-09 MEECNRL - Jul 9, 12:00 UTCJul 9, 12:10 UTC10m
2026-07-09 MEECNRL - Jul 9, 09:55 UTCJul 9, 10:05 UTC10m
2026-07-08 MEECNRL - Jul 8, 11:15 UTCJul 8, 11:25 UTC10m
2026-07-08 MEECNRL - Jul 8, 08:35 UTCJul 8, 08:55 UTC20m
2026-07-08 MEECNRL - Jul 8, 05:35 UTCJul 8, 05:45 UTC10m
2026-07-06 MEECNRL - Jul 6, 09:20 UTCJul 6, 09:30 UTC10m
2026-07-06 MEECNRL - Jul 6, 08:00 UTCJul 6, 08:10 UTC10m
2026-07-05 - - Jul 5, 14:50 UTCJul 5, 15:00 UTC10m
2026-07-05 MEECNRL - Jul 5, 10:35 UTCJul 5, 11:10 UTC35m
2026-07-04 MEECNRL - Jul 4, 08:45 UTCJul 4, 08:55 UTC10m
2026-07-03 MEECNRL - Jul 3, 10:35 UTCJul 3, 10:45 UTC10m
2026-07-03 MEECNRL - Jul 3, 09:05 UTCJul 3, 09:30 UTC25m
2026-07-03 MEECNRL - Jul 3, 06:30 UTCJul 3, 06:45 UTC15m
2026-07-01 MEECNRL - Jul 1, 09:45 UTCJul 1, 10:05 UTC20m
2026-06-29 MEECNRL - Jun 29, 16:10 UTCJun 29, 16:25 UTC15m
2026-06-29 MEECNRL - Jun 29, 12:24 UTCJun 29, 12:34 UTC10m
2026-06-28 MEECNRL - Jun 28, 09:45 UTCJun 28, 10:24 UTC40m
2026-06-27 MEECNRL - Jun 27, 11:09 UTCJun 27, 11:35 UTC25m
2026-06-26 MEECNRL - Jun 26, 09:39 UTCJun 26, 09:50 UTC10m
2026-06-23 MEECNRL - Jun 23, 13:19 UTCJun 23, 13:29 UTC10m
2026-06-23 MEECNRL - Jun 23, 12:20 UTCJun 23, 12:29 UTC10m
2026-06-21 MEECNRL - Jun 21, 15:25 UTCJun 21, 15:49 UTC25m
2026-06-20 MEECNRL - Jun 20, 10:29 UTCJun 20, 11:34 UTC1h 5m
2026-06-20 MEECNRL - Jun 20, 09:44 UTCJun 20, 09:54 UTC10m
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

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 8d 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.