sensors Mode-S transponder
E49931
ICAO 24-bit transponder address · allocated to Brazil
Currently assigned to FAB1394 · EMBRAER EMB-312 Tucano
- Hex
- E49931
- Octal
- 71114461
- Decimal
- 14,981,425
- Country
- BR
- Tail
- FAB1394
- Type
- TUCA
- Flights observed
- 138
- Distinct callsigns
- 20
- Country
- BR
- Last broadcast
- Jul 23, 19:10 UTC
Last known position
Country allocation
The ICAO 24-bit address E49931 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 20 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CO99 | - | 7 | 2026-07-21 |
| CO127 | - | 7 | 2026-06-23 |
| CO60 | - | 6 | 2026-07-13 |
| CO106 | - | 6 | 2026-07-06 |
| CO96 | - | 5 | 2026-07-22 |
| CO63 | - | 5 | 2026-07-09 |
| CO117 | - | 5 | 2026-07-02 |
| CO91 | - | 4 | 2026-04-27 |
| CO53 | - | 4 | 2026-05-14 |
| CO111 | - | 4 | 2026-07-22 |
| OUROS1 | - | 3 | 2026-07-23 |
| CO79 | - | 3 | 2026-06-17 |
| CO77 | - | 3 | 2026-07-22 |
| CO62 | - | 3 | 2026-05-07 |
| CO110 | - | 3 | 2026-07-21 |
| CO108 | - | 3 | 2026-07-20 |
| CO10 | - | 3 | 2026-05-20 |
| VEGA1 | - | 2 | 2026-06-29 |
| SIRIUS14 | - | 2 | 2026-04-28 |
| COPAS1 | - | 2 | 2026-05-08 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-23 | - | - | Jul 23, 18:55 UTC | Jul 23, 19:10 UTC | 15m |
| 2026-07-23 | OUROS1 | - | Jul 23, 17:20 UTC | Jul 23, 18:00 UTC | 40m |
| 2026-07-23 | CORINGA1 | - | Jul 23, 15:30 UTC | Jul 23, 16:20 UTC | 50m |
| 2026-07-23 | CO122 | - | Jul 23, 13:20 UTC | Jul 23, 14:10 UTC | 50m |
| 2026-07-23 | SIRIUS18 | - | Jul 23, 12:00 UTC | Jul 23, 12:40 UTC | 40m |
| 2026-07-22 | CO77 | - | Jul 22, 17:30 UTC | Jul 22, 18:30 UTC | 1h 0m |
| 2026-07-22 | CO96 | - | Jul 22, 15:55 UTC | Jul 22, 16:35 UTC | 40m |
| 2026-07-22 | CO57 | - | Jul 22, 14:10 UTC | Jul 22, 14:55 UTC | 45m |
| 2026-07-22 | CO111 | - | Jul 22, 11:55 UTC | Jul 22, 12:35 UTC | 40m |
| 2026-07-21 | CO99 | - | Jul 21, 15:30 UTC | Jul 21, 16:15 UTC | 45m |
| 2026-07-21 | VEGA12 | - | Jul 21, 12:10 UTC | Jul 21, 13:00 UTC | 50m |
| 2026-07-21 | CO110 | - | Jul 21, 10:25 UTC | Jul 21, 11:25 UTC | 1h 0m |
| 2026-07-20 | CO108 | - | Jul 20, 19:00 UTC | Jul 20, 19:35 UTC | 35m |
| 2026-07-20 | ANTARE19 | - | Jul 20, 17:15 UTC | Jul 20, 17:55 UTC | 40m |
| 2026-07-16 | VEGA04 | - | Jul 16, 17:14 UTC | Jul 16, 18:00 UTC | 45m |
| 2026-07-13 | CO60 | - | Jul 13, 13:25 UTC | Jul 13, 14:10 UTC | 45m |
| 2026-07-13 | CO111 | - | Jul 13, 11:40 UTC | Jul 13, 12:25 UTC | 45m |
| 2026-07-13 | CO60 | - | Jul 13, 10:15 UTC | Jul 13, 10:55 UTC | 40m |
| 2026-07-09 | CO63 | - | Jul 9, 18:20 UTC | Jul 9, 18:55 UTC | 35m |
| 2026-07-09 | CO129 | - | Jul 9, 16:25 UTC | Jul 9, 17:05 UTC | 40m |
| 2026-07-09 | CO76 | - | Jul 9, 14:10 UTC | Jul 9, 14:55 UTC | 45m |
| 2026-07-08 | OUROS1 | - | Jul 8, 16:50 UTC | Jul 8, 17:45 UTC | 55m |
| 2026-07-07 | CO111 | - | Jul 7, 18:15 UTC | Jul 7, 19:05 UTC | 50m |
| 2026-07-07 | CO99 | - | Jul 7, 16:20 UTC | Jul 7, 16:55 UTC | 35m |
| 2026-07-07 | CO28 | - | Jul 7, 14:40 UTC | Jul 7, 15:05 UTC | 25m |
| 2026-07-07 | CO26 | - | Jul 7, 13:05 UTC | Jul 7, 13:50 UTC | 45m |
| 2026-07-07 | CO54 | - | Jul 7, 11:40 UTC | Jul 7, 12:25 UTC | 45m |
| 2026-07-06 | CO106 | - | Jul 6, 18:50 UTC | Jul 6, 19:25 UTC | 35m |
| 2026-07-06 | OUROS1 | - | Jul 6, 17:15 UTC | Jul 6, 18:00 UTC | 45m |
| 2026-07-06 | CASTOR1 | - | Jul 6, 15:25 UTC | Jul 6, 16:15 UTC | 50m |
| 2026-07-04 | CO63 | - | Jul 4, 15:55 UTC | Jul 4, 16:35 UTC | 40m |
| 2026-07-04 | CO65 | - | Jul 4, 14:00 UTC | Jul 4, 14:35 UTC | 35m |
| 2026-07-02 | CO117 | - | Jul 2, 19:20 UTC | Jul 2, 19:55 UTC | 35m |
| 2026-07-02 | CO117 | - | Jul 2, 17:25 UTC | Jul 2, 18:05 UTC | 40m |
| 2026-07-01 | CO112 | - | Jul 1, 19:20 UTC | Jul 1, 20:05 UTC | 45m |
| 2026-07-01 | COCOPAS | - | Jul 1, 13:55 UTC | Jul 1, 14:45 UTC | 50m |
| 2026-07-01 | CO56 | - | Jul 1, 12:05 UTC | Jul 1, 13:05 UTC | 1h 0m |
| 2026-07-01 | CO124 | - | Jul 1, 10:10 UTC | Jul 1, 10:55 UTC | 45m |
| 2026-06-30 | SIRIUS1 | - | Jun 30, 11:50 UTC | Jun 30, 12:45 UTC | 55m |
| 2026-06-29 | CO19 | - | Jun 29, 14:04 UTC | Jun 29, 14:50 UTC | 45m |
| 2026-06-29 | VEGA1 | - | Jun 29, 12:00 UTC | Jun 29, 12:49 UTC | 50m |
| 2026-06-29 | ANTAR1 | - | Jun 29, 10:24 UTC | Jun 29, 11:20 UTC | 55m |
| 2026-06-23 | CO127 | - | Jun 23, 10:55 UTC | Jun 23, 11:19 UTC | 25m |
| 2026-06-22 | CO106 | - | Jun 22, 19:00 UTC | Jun 22, 19:54 UTC | 55m |
| 2026-06-22 | CO57 | - | Jun 22, 17:04 UTC | Jun 22, 17:34 UTC | 30m |
| 2026-06-22 | CO90 | - | Jun 22, 13:59 UTC | Jun 22, 14:45 UTC | 45m |
| 2026-06-20 | CO127 | - | Jun 20, 14:14 UTC | Jun 20, 14:44 UTC | 30m |
| 2026-06-20 | CO127 | - | Jun 20, 12:14 UTC | Jun 20, 12:59 UTC | 45m |
| 2026-06-19 | CO106 | - | Jun 19, 17:14 UTC | Jun 19, 17:59 UTC | 45m |
| 2026-06-19 | CO106 | - | Jun 19, 14:49 UTC | Jun 19, 15:29 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 FAB1394 page for operator, model, and routing details .