sensors Mode-S transponder
347684
ICAO 24-bit transponder address · allocated to Spain
Currently assigned to EC-OFG · GULFSTREAM 5
- Hex
- 347684
- Octal
- 15073204
- Decimal
- 3,438,212
- Country
- ES
- Tail
- EC-OFG
- Type
- GLF5
- Flights observed
- 42
- Distinct callsigns
- 1
- Country
- ES
- Last broadcast
- 20h ago
Last known position
Country allocation
The ICAO 24-bit address 347684 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 1 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| GES081F | - | 42 | 2026-07-24 |
Recent flights last 42
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-24 | GES081F | BSL → MAD | Jul 24, 08:20 UTC | Jul 24, 10:10 UTC | 1h 50m |
| 2026-07-20 | GES081F | - | Jul 20, 14:35 UTC | Jul 20, 16:05 UTC | 1h 30m |
| 2026-07-20 | GES081F | NUQ → ZAZ | Jul 20, 02:15 UTC | Jul 20, 13:20 UTC | 11h 5m |
| 2026-07-12 | GES081F | - | Jul 12, 04:05 UTC | Jul 12, 05:45 UTC | 1h 40m |
| 2026-07-06 | GES081F | - | Jul 6, 01:25 UTC | Jul 6, 01:45 UTC | 20m |
| 2026-07-05 | GES081F | - | Jul 5, 12:45 UTC | Jul 5, 22:50 UTC | 10h 5m |
| 2026-07-04 | GES081F | MAD → FAB | Jul 4, 15:40 UTC | Jul 4, 17:25 UTC | 1h 45m |
| 2026-06-29 | GES081F | - | Jun 29, 17:05 UTC | Jun 29, 19:05 UTC | 2h 0m |
| 2026-06-29 | GES081F | MAD → BRU | Jun 29, 08:29 UTC | Jun 29, 10:10 UTC | 1h 40m |
| 2026-06-15 | GES081F | - | Jun 15, 09:35 UTC | Jun 15, 11:39 UTC | 2h 5m |
| 2026-06-15 | GES081F | - | Jun 15, 07:55 UTC | Jun 15, 08:25 UTC | 30m |
| 2026-06-11 | GES081F | - | Jun 11, 07:45 UTC | Jun 11, 08:15 UTC | 30m |
| 2026-06-11 | GES081F | - | Jun 11, 04:20 UTC | Jun 11, 06:15 UTC | 1h 55m |
| 2026-06-06 | GES081F | - | Jun 6, 20:05 UTC | Jun 6, 21:50 UTC | 1h 45m |
| 2026-06-06 | GES081F | - | Jun 6, 02:00 UTC | Jun 6, 02:45 UTC | 45m |
| 2026-06-05 | GES081F | - | Jun 5, 21:55 UTC | Jun 6, 01:55 UTC | 4h 0m |
| 2026-06-05 | GES081F | - | Jun 5, 11:55 UTC | Jun 5, 12:10 UTC | 15m |
| 2026-06-04 | GES081F | - | Jun 4, 11:10 UTC | Jun 4, 12:00 UTC | 50m |
| 2026-06-02 | GES081F | - | Jun 2, 06:05 UTC | Jun 2, 07:40 UTC | 1h 35m |
| 2026-05-27 | GES081F | BCN → NRT | May 27, 18:05 UTC | May 28, 08:10 UTC | 14h 5m |
| 2026-05-26 | GES081F | MAD → BCN | May 26, 15:00 UTC | May 26, 15:49 UTC | 50m |
| 2026-05-23 | GES081F | - | May 23, 13:55 UTC | May 23, 15:40 UTC | 1h 45m |
| 2026-05-23 | GES081F | - | May 23, 11:55 UTC | May 23, 12:15 UTC | 20m |
| 2026-05-21 | GES081F | - | May 21, 13:15 UTC | May 21, 13:35 UTC | 20m |
| 2026-05-21 | GES081F | - | May 21, 09:55 UTC | May 21, 11:50 UTC | 1h 55m |
| 2026-05-14 | GES081F | - | May 14, 21:05 UTC | May 15, 07:00 UTC | 9h 55m |
| 2026-05-12 | GES081F | - | May 12, 10:15 UTC | May 12, 21:05 UTC | 10h 50m |
| 2026-05-08 | GES081F | - | May 8, 00:20 UTC | May 8, 09:59 UTC | 9h 40m |
| 2026-05-06 | GES081F | - | May 6, 23:55 UTC | May 7, 01:10 UTC | 1h 15m |
| 2026-05-04 | GES081F | - | May 4, 21:40 UTC | May 5, 09:50 UTC | 12h 10m |
| 2026-05-03 | GES081F | MAD → BCN | May 3, 17:50 UTC | May 3, 18:40 UTC | 50m |
| 2026-05-03 | GES081F | - | May 3, 12:15 UTC | May 3, 14:25 UTC | 2h 10m |
| 2026-05-03 | GES081F | - | May 3, 08:35 UTC | May 3, 09:35 UTC | 1h 0m |
| 2026-04-30 | GES081F | - | Apr 30, 16:20 UTC | May 1, 04:10 UTC | 11h 50m |
| 2026-04-29 | GES081F | - | Apr 29, 21:25 UTC | Apr 29, 21:45 UTC | 20m |
| 2026-04-29 | GES081F | EZE → AEP | Apr 29, 19:00 UTC | Apr 29, 19:30 UTC | 30m |
| 2026-04-26 | GES081F | BCN → EZE | Apr 26, 19:30 UTC | Apr 27, 09:50 UTC | 14h 20m |
| 2026-04-25 | GES081F | MAD → BCN | Apr 25, 17:30 UTC | Apr 25, 18:25 UTC | 55m |
| 2026-04-23 | GES081F | LIN → MAD | Apr 23, 16:30 UTC | Apr 23, 18:20 UTC | 1h 49m |
| 2026-04-23 | GES081F | MAD → LIN | Apr 23, 12:55 UTC | Apr 23, 14:50 UTC | 1h 55m |
| 2026-04-20 | GES081F | - | Apr 20, 21:40 UTC | Apr 20, 23:35 UTC | 1h 55m |
| 2026-04-20 | GES081F | MAD → LIN | Apr 20, 18:35 UTC | Apr 20, 20:10 UTC | 1h 35m |
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-OFG page for operator, model, and routing details .