sensors Mode-S transponder
E4A375
ICAO 24-bit transponder address · allocated to Brazil
Currently assigned to PP-BYD · CESSNA 680 Citation Sovereign
- Hex
- E4A375
- Octal
- 71121565
- Decimal
- 14,984,053
- Country
- BR
- Tail
- PP-BYD
- Type
- C680
- Flights observed
- 25
- Distinct callsigns
- 1
- Country
- BR
- Last broadcast
- 7d ago
Last known position
Country allocation
The ICAO 24-bit address E4A375 falls within the block assigned to Brazil (BR) by ICAO Annex 10, Volume III. Every aircraft registered in Brazil 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 |
|---|---|---|---|
| PPBYD | - | 25 | 2026-07-26 |
Recent flights last 25
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | PPBYD | - | Jul 26, 08:50 UTC | Jul 26, 10:10 UTC | 1h 20m |
| 2026-07-19 | PPBYD | - | Jul 19, 11:40 UTC | Jul 19, 12:50 UTC | 1h 10m |
| 2026-07-11 | PPBYD | - | Jul 11, 15:10 UTC | Jul 11, 15:55 UTC | 45m |
| 2026-07-11 | PPBYD | - | Jul 11, 09:35 UTC | Jul 11, 10:20 UTC | 45m |
| 2026-07-10 | PPBYD | SOU → LBG | Jul 10, 20:05 UTC | Jul 10, 20:50 UTC | 45m |
| 2026-07-10 | PPBYD | - | Jul 10, 10:55 UTC | Jul 10, 13:00 UTC | 2h 5m |
| 2026-07-10 | PPBYD | - | Jul 10, 08:00 UTC | Jul 10, 08:20 UTC | 20m |
| 2026-07-01 | PPBYD | - | Jul 1, 08:00 UTC | Jul 1, 18:30 UTC | 10h 30m |
| 2026-06-30 | PPBYD | - | Jun 30, 22:00 UTC | Jun 30, 22:10 UTC | 10m |
| 2026-06-30 | PPBYD | - | Jun 30, 19:20 UTC | Jun 30, 20:20 UTC | 1h 0m |
| 2026-06-25 | PPBYD | FXE → CGH | Jun 25, 06:00 UTC | Jun 25, 17:44 UTC | 11h 45m |
| 2026-06-24 | PPBYD | - | Jun 24, 01:34 UTC | Jun 24, 12:25 UTC | 10h 50m |
| 2026-05-28 | PPBYD | - | May 28, 11:35 UTC | May 28, 12:25 UTC | 50m |
| 2026-05-27 | PPBYD | - | May 27, 02:09 UTC | May 27, 04:14 UTC | 2h 5m |
| 2026-05-26 | PPBYD | - | May 26, 01:30 UTC | May 26, 21:04 UTC | 19h 35m |
| 2026-05-21 | PPBYD | - | May 21, 13:30 UTC | May 21, 14:10 UTC | 40m |
| 2026-05-21 | PPBYD | - | May 21, 10:35 UTC | May 21, 11:15 UTC | 40m |
| 2026-05-14 | PPBYD | - | May 14, 18:20 UTC | May 14, 19:25 UTC | 1h 5m |
| 2026-05-10 | PPBYD | - | May 10, 22:05 UTC | May 10, 22:45 UTC | 40m |
| 2026-05-09 | PPBYD | - | May 9, 02:50 UTC | May 9, 03:30 UTC | 40m |
| 2026-05-08 | PPBYD | - | May 8, 02:14 UTC | May 8, 02:44 UTC | 30m |
| 2026-05-07 | PPBYD | - | May 7, 21:10 UTC | May 7, 21:45 UTC | 35m |
| 2026-05-03 | PPBYD | - | May 3, 21:50 UTC | May 3, 22:34 UTC | 45m |
| 2026-05-01 | PPBYD | - | May 1, 20:05 UTC | May 1, 20:20 UTC | 15m |
| 2026-05-01 | PPBYD | - | May 1, 14:15 UTC | May 1, 14:55 UTC | 40m |
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 PP-BYD page for operator, model, and routing details .