sensors Mode-S transponder
E4A093
ICAO 24-bit transponder address · allocated to Brazil
Currently assigned to PS-IRS · EMBRAER EMB545 Praetor 500
- Hex
- E4A093
- Octal
- 71120223
- Decimal
- 14,983,315
- Country
- BR
- Tail
- PS-IRS
- Type
- E545
- Flights observed
- 18
- Distinct callsigns
- 1
- Country
- BR
- Last broadcast
- 11h ago
Last known position
Country allocation
The ICAO 24-bit address E4A093 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 |
|---|---|---|---|
| PSIRS | - | 18 | 2026-05-29 |
Recent flights last 18
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | PSIRS | - | May 29, 19:15 UTC | May 29, 20:05 UTC | 50m |
| 2026-05-26 | PSIRS | - | May 26, 11:24 UTC | May 26, 12:20 UTC | 55m |
| 2026-05-19 | PSIRS | - | May 19, 20:20 UTC | May 19, 21:10 UTC | 50m |
| 2026-05-18 | PSIRS | CGH → CGH | May 18, 09:35 UTC | May 18, 20:45 UTC | 11h 9m |
| 2026-05-17 | PSIRS | - | May 17, 19:35 UTC | May 17, 20:30 UTC | 55m |
| 2026-05-13 | PSIRS | - | May 13, 09:35 UTC | May 13, 10:00 UTC | 25m |
| 2026-05-13 | PSIRS | - | May 13, 00:00 UTC | May 13, 00:30 UTC | 30m |
| 2026-05-07 | PSIRS | - | May 7, 21:35 UTC | May 7, 22:05 UTC | 30m |
| 2026-05-07 | PSIRS | CGH → CGH | May 7, 12:40 UTC | May 7, 21:15 UTC | 8h 35m |
| 2026-05-06 | PSIRS | - | May 6, 12:25 UTC | May 6, 13:10 UTC | 45m |
| 2026-05-01 | PSIRS | - | May 1, 22:05 UTC | May 1, 22:30 UTC | 25m |
| 2026-05-01 | PSIRS | - | May 1, 18:20 UTC | May 1, 18:40 UTC | 20m |
| 2026-04-27 | PSIRS | - | Apr 27, 17:20 UTC | Apr 27, 17:40 UTC | 20m |
| 2026-04-22 | PSIRS | - | Apr 22, 01:05 UTC | Apr 22, 01:15 UTC | 10m |
| 2026-04-21 | PSIRS | - | Apr 21, 13:05 UTC | Apr 21, 22:05 UTC | 9h 0m |
| 2026-04-14 | PSIRS | - | Apr 14, 11:05 UTC | Apr 14, 11:55 UTC | 50m |
| 2026-04-12 | PSIRS | - | Apr 12, 18:55 UTC | Apr 12, 19:20 UTC | 25m |
| 2026-04-12 | PSIRS | - | Apr 12, 17:55 UTC | Apr 12, 18:30 UTC | 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 PS-IRS page for operator, model, and routing details .