sensors Mode-S transponder
E4A0A0
ICAO 24-bit transponder address · allocated to Brazil
- Hex
- E4A0A0
- Octal
- 71120240
- Decimal
- 14,983,328
- Country
- BR
- Flights observed
- 30
- Distinct callsigns
- 1
- Country
- BR
- Last broadcast
- Jul 26, 20:45 UTC
Last known position
Country allocation
The ICAO 24-bit address E4A0A0 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 |
|---|---|---|---|
| PSDMP | - | 30 | 2026-07-26 |
Recent flights last 30
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | PSDMP | - | Jul 26, 20:35 UTC | Jul 26, 20:45 UTC | 10m |
| 2026-07-26 | PSDMP | - | Jul 26, 16:45 UTC | Jul 26, 16:55 UTC | 10m |
| 2026-07-25 | PSDMP | - | Jul 25, 20:50 UTC | Jul 25, 21:00 UTC | 10m |
| 2026-07-25 | PSDMP | - | Jul 25, 14:00 UTC | Jul 25, 14:15 UTC | 15m |
| 2026-07-20 | PSDMP | - | Jul 20, 17:50 UTC | Jul 20, 18:10 UTC | 20m |
| 2026-07-18 | PSDMP | - | Jul 18, 13:10 UTC | Jul 18, 13:20 UTC | 10m |
| 2026-07-17 | PSDMP | - | Jul 17, 14:30 UTC | Jul 17, 15:20 UTC | 50m |
| 2026-07-10 | PSDMP | - | Jul 10, 17:50 UTC | Jul 10, 18:00 UTC | 10m |
| 2026-07-04 | PSDMP | - | Jul 4, 20:10 UTC | Jul 4, 20:25 UTC | 15m |
| 2026-07-04 | PSDMP | - | Jul 4, 14:20 UTC | Jul 4, 14:50 UTC | 30m |
| 2026-06-21 | PSDMP | - | Jun 21, 16:34 UTC | Jun 21, 16:44 UTC | 10m |
| 2026-06-18 | PSDMP | - | Jun 18, 15:55 UTC | Jun 18, 16:15 UTC | 20m |
| 2026-06-18 | PSDMP | - | Jun 18, 11:55 UTC | Jun 18, 12:20 UTC | 25m |
| 2026-06-14 | PSDMP | - | Jun 14, 15:45 UTC | Jun 14, 16:00 UTC | 15m |
| 2026-06-13 | PSDMP | - | Jun 13, 14:30 UTC | Jun 13, 15:05 UTC | 35m |
| 2026-06-08 | PSDMP | - | Jun 8, 16:35 UTC | Jun 8, 16:45 UTC | 10m |
| 2026-06-04 | PSDMP | - | Jun 4, 13:20 UTC | Jun 4, 13:55 UTC | 35m |
| 2026-05-29 | PSDMP | - | May 29, 18:10 UTC | May 29, 18:20 UTC | 10m |
| 2026-05-26 | PSDMP | - | May 26, 16:59 UTC | May 26, 17:05 UTC | 5m |
| 2026-05-13 | PSDMP | - | May 13, 19:30 UTC | May 13, 19:40 UTC | 10m |
| 2026-05-13 | PSDMP | - | May 13, 16:25 UTC | May 13, 16:55 UTC | 30m |
| 2026-05-11 | PSDMP | - | May 11, 17:45 UTC | May 11, 17:55 UTC | 10m |
| 2026-05-09 | PSDMP | - | May 9, 16:10 UTC | May 9, 16:20 UTC | 10m |
| 2026-05-05 | PSDMP | - | May 5, 14:45 UTC | May 5, 15:25 UTC | 40m |
| 2026-05-05 | PSDMP | - | May 5, 11:40 UTC | May 5, 12:35 UTC | 55m |
| 2026-04-26 | PSDMP | - | Apr 26, 20:20 UTC | Apr 26, 20:30 UTC | 10m |
| 2026-04-24 | PSDMP | - | Apr 24, 18:35 UTC | Apr 24, 19:10 UTC | 35m |
| 2026-04-21 | PSDMP | - | Apr 21, 20:25 UTC | Apr 21, 20:35 UTC | 10m |
| 2026-04-20 | PSDMP | - | Apr 20, 14:15 UTC | Apr 20, 15:20 UTC | 1h 5m |
| 2026-04-17 | PSDMP | - | Apr 17, 20:15 UTC | Apr 17, 20:25 UTC | 10m |
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.