sensors Mode-S transponder
346401
ICAO 24-bit transponder address · allocated to Spain
Currently assigned to EC-NGO · AGUSTA AW-139
- Hex
- 346401
- Octal
- 15062001
- Decimal
- 3,433,473
- Country
- ES
- Tail
- EC-NGO
- Type
- A139
- Flights observed
- 88
- Distinct callsigns
- 5
- Country
- ES
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 346401 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 5 distinct
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-16 | INR223 | - | Jul 16, 10:45 UTC | Jul 16, 10:59 UTC | 15m |
| 2026-07-15 | REECNGO | - | Jul 15, 18:15 UTC | Jul 15, 18:35 UTC | 20m |
| 2026-07-15 | REECNGO | - | Jul 15, 16:35 UTC | Jul 15, 17:05 UTC | 30m |
| 2026-07-13 | REECNGO | - | Jul 13, 12:05 UTC | Jul 13, 12:20 UTC | 15m |
| 2026-07-13 | REECNGO | - | Jul 13, 10:45 UTC | Jul 13, 10:55 UTC | 10m |
| 2026-07-09 | REECNGO | - | Jul 9, 17:50 UTC | Jul 9, 18:05 UTC | 15m |
| 2026-07-09 | REECNGO | - | Jul 9, 16:25 UTC | Jul 9, 16:40 UTC | 15m |
| 2026-07-06 | INR2320 | SCQ → SCQ | Jul 6, 17:10 UTC | Jul 6, 17:50 UTC | 40m |
| 2026-07-06 | INR2320 | - | Jul 6, 13:05 UTC | Jul 6, 13:45 UTC | 40m |
| 2026-07-06 | INR2301 | - | Jul 6, 08:35 UTC | Jul 6, 10:25 UTC | 1h 50m |
| 2026-06-30 | INR230 | - | Jun 30, 07:40 UTC | Jun 30, 08:10 UTC | 30m |
| 2026-06-30 | INR230 | - | Jun 30, 06:00 UTC | Jun 30, 06:35 UTC | 35m |
| 2026-06-29 | REECNGO | - | Jun 29, 10:10 UTC | Jun 29, 10:44 UTC | 35m |
| 2026-06-27 | REECNGO | - | Jun 27, 02:29 UTC | Jun 27, 02:45 UTC | 15m |
| 2026-06-27 | REECNGO | - | Jun 27, 00:55 UTC | Jun 27, 01:19 UTC | 25m |
| 2026-06-26 | REECNGO | - | Jun 26, 23:04 UTC | Jun 26, 23:44 UTC | 40m |
| 2026-06-26 | REECNGO | - | Jun 26, 11:00 UTC | Jun 26, 12:24 UTC | 1h 25m |
| 2026-06-25 | REECNGO | XRY → XRY | Jun 25, 09:50 UTC | Jun 25, 10:45 UTC | 55m |
| 2026-06-24 | REECNGO | - | Jun 24, 11:45 UTC | Jun 24, 12:25 UTC | 40m |
| 2026-06-24 | REECNGO | - | Jun 24, 10:35 UTC | Jun 24, 10:49 UTC | 15m |
| 2026-06-23 | REECNGO | - | Jun 23, 19:24 UTC | Jun 23, 20:19 UTC | 55m |
| 2026-06-23 | REECNGO | - | Jun 23, 08:00 UTC | Jun 23, 09:40 UTC | 1h 40m |
| 2026-06-22 | REECNGO | XRY → XRY | Jun 22, 21:05 UTC | Jun 22, 22:19 UTC | 1h 15m |
| 2026-06-22 | REECNGO | - | Jun 22, 09:19 UTC | Jun 22, 12:00 UTC | 2h 40m |
| 2026-06-21 | REECNGO | - | Jun 21, 15:05 UTC | Jun 21, 17:10 UTC | 2h 5m |
| 2026-06-20 | REECNGO | - | Jun 20, 10:25 UTC | Jun 20, 11:25 UTC | 1h 0m |
| 2026-06-19 | REECNGO | - | Jun 19, 05:19 UTC | Jun 19, 06:35 UTC | 1h 15m |
| 2026-06-17 | REECNGO | - | Jun 17, 17:10 UTC | Jun 17, 18:20 UTC | 1h 10m |
| 2026-06-17 | REECNGO | - | Jun 17, 10:10 UTC | Jun 17, 11:40 UTC | 1h 30m |
| 2026-06-12 | REECNGO | - | Jun 12, 11:20 UTC | Jun 12, 12:15 UTC | 55m |
| 2026-06-10 | REECNGO | - | Jun 10, 10:25 UTC | Jun 10, 11:55 UTC | 1h 30m |
| 2026-06-05 | REECNGO | - | Jun 5, 21:20 UTC | Jun 5, 22:30 UTC | 1h 10m |
| 2026-06-04 | REECNGO | - | Jun 4, 21:15 UTC | Jun 4, 22:40 UTC | 1h 25m |
| 2026-06-04 | REECNGO | - | Jun 4, 16:05 UTC | Jun 4, 16:30 UTC | 25m |
| 2026-06-02 | REECNGO | - | Jun 2, 21:10 UTC | Jun 2, 22:10 UTC | 1h 0m |
| 2026-06-02 | REECNGO | - | Jun 2, 15:15 UTC | Jun 2, 17:25 UTC | 2h 10m |
| 2026-06-01 | REECNGO | - | Jun 1, 15:30 UTC | Jun 1, 17:30 UTC | 2h 0m |
| 2026-05-29 | REECNGO | - | May 29, 18:05 UTC | May 29, 18:25 UTC | 20m |
| 2026-05-29 | REECNGO | - | May 29, 16:55 UTC | May 29, 17:10 UTC | 15m |
| 2026-05-29 | REECNGO | - | May 29, 09:45 UTC | May 29, 10:30 UTC | 45m |
| 2026-05-28 | REECNGO | - | May 28, 21:25 UTC | May 28, 22:30 UTC | 1h 5m |
| 2026-05-28 | REECNGO | - | May 28, 16:40 UTC | May 28, 18:20 UTC | 1h 40m |
| 2026-05-25 | REECNGO | - | May 25, 21:24 UTC | May 25, 22:19 UTC | 55m |
| 2026-05-25 | REECNGO | - | May 25, 11:25 UTC | May 25, 11:55 UTC | 30m |
| 2026-05-24 | REECNGO | - | May 24, 12:30 UTC | May 24, 13:00 UTC | 30m |
| 2026-05-21 | REECNGO | - | May 21, 21:30 UTC | May 21, 22:40 UTC | 1h 10m |
| 2026-05-21 | REECNGO | - | May 21, 11:40 UTC | May 21, 13:05 UTC | 1h 25m |
| 2026-05-21 | REECNGO | - | May 21, 07:45 UTC | May 21, 08:05 UTC | 20m |
| 2026-05-19 | REECNGO | - | May 19, 18:40 UTC | May 19, 19:45 UTC | 1h 5m |
| 2026-05-18 | REECNGO | - | May 18, 18:40 UTC | May 18, 19:55 UTC | 1h 15m |
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-NGO page for operator, model, and routing details .