sensors Mode-S transponder
040239
ICAO 24-bit transponder address · allocated to Ethiopia
Currently assigned to ET-BAP · BOEING 737 MAX 8
- Hex
- 040239
- Octal
- 01001071
- Decimal
- 262,713
- Country
- ET
- Tail
- ET-BAP
- Type
- B38M
- Flights observed
- 92
- Distinct callsigns
- 20
- Country
- ET
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address 040239 falls within the block assigned to Ethiopia (ET) by ICAO Annex 10, Volume III. Every aircraft registered in Ethiopia 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 |
|---|---|---|---|
| ETH622 | - | 27 | 2026-07-03 |
| ETH623 | - | 18 | 2026-07-04 |
| ETH406 | - | 5 | 2026-06-28 |
| ETH614 | - | 4 | 2026-07-06 |
| ETH612 | - | 4 | 2026-07-13 |
| ETH407 | - | 4 | 2026-06-29 |
| ETH963 | Ethiopian Airlines | 2 | 2026-06-05 |
| ETH962 | Ethiopian Airlines | 2 | 2026-06-06 |
| ETH686 | Ethiopian Airlines | 2 | 2026-04-13 |
| ETH615 | - | 2 | 2026-07-06 |
| ETH613 | - | 2 | 2026-07-14 |
| ETH858 | Ethiopian Airlines | 1 | 2026-06-12 |
| ETH849 | Ethiopian Airlines | 1 | 2026-06-12 |
| ETH723 | Ethiopian Airlines | 1 | 2026-06-09 |
| ETH720 | Ethiopian Airlines | 1 | 2026-06-09 |
| ETH697 | Ethiopian Airlines | 1 | 2026-06-07 |
| ETH696 | Ethiopian Airlines | 1 | 2026-06-07 |
| ETH693 | Ethiopian Airlines | 1 | 2026-06-11 |
| ETH692 | Ethiopian Airlines | 1 | 2026-06-11 |
| ETH691 | - | 1 | 2026-06-19 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | ETH613 | - | Jul 14, 02:05 UTC | Jul 14, 02:40 UTC | 35m |
| 2026-07-13 | ETH612 | - | Jul 13, 23:45 UTC | Jul 14, 00:15 UTC | 30m |
| 2026-07-12 | ETH429 | - | Jul 12, 00:45 UTC | Jul 12, 01:00 UTC | 15m |
| 2026-07-11 | ETH428 | - | Jul 11, 23:05 UTC | Jul 11, 23:25 UTC | 20m |
| 2026-07-09 | ETH613 | - | Jul 9, 02:05 UTC | Jul 9, 02:35 UTC | 30m |
| 2026-07-08 | ETH612 | - | Jul 8, 14:35 UTC | Jul 9, 00:10 UTC | 9h 35m |
| 2026-07-07 | ETH431 | - | Jul 7, 13:05 UTC | Jul 7, 13:20 UTC | 15m |
| 2026-07-07 | ETH430 | - | Jul 7, 10:35 UTC | Jul 7, 10:55 UTC | 20m |
| 2026-07-06 | ETH614 | - | Jul 6, 22:50 UTC | Jul 6, 23:15 UTC | 25m |
| 2026-07-06 | ETH615 | - | Jul 6, 01:20 UTC | Jul 6, 01:30 UTC | 10m |
| 2026-07-05 | ETH419 | - | Jul 5, 13:10 UTC | Jul 5, 23:10 UTC | 10h 0m |
| 2026-07-05 | ETH418 | - | Jul 5, 02:00 UTC | Jul 5, 11:25 UTC | 9h 25m |
| 2026-07-04 | ETH612 | - | Jul 4, 23:40 UTC | Jul 5, 00:15 UTC | 35m |
| 2026-07-04 | ETH623 | - | Jul 4, 01:10 UTC | Jul 5, 00:15 UTC | 23h 5m |
| 2026-07-03 | ETH622 | - | Jul 3, 22:55 UTC | Jul 3, 23:35 UTC | 40m |
| 2026-07-03 | ETH622 | - | Jul 3, 01:50 UTC | Jul 3, 23:35 UTC | 21h 45m |
| 2026-07-02 | ETH614 | - | Jul 2, 23:10 UTC | Jul 2, 23:35 UTC | 25m |
| 2026-06-30 | ETH615 | - | Jun 30, 01:09 UTC | Jun 30, 01:45 UTC | 36m |
| 2026-06-29 | ETH614 | - | Jun 29, 22:59 UTC | Jun 29, 23:25 UTC | 25m |
| 2026-06-29 | ETH407 | - | Jun 29, 00:39 UTC | Jun 29, 23:25 UTC | 22h 45m |
| 2026-06-28 | ETH406 | - | Jun 28, 22:20 UTC | Jun 28, 23:29 UTC | 1h 10m |
| 2026-06-28 | ETH406 | - | Jun 28, 02:49 UTC | Jun 28, 23:29 UTC | 20h 40m |
| 2026-06-27 | ETH424 | ADD → BAH | Jun 27, 22:45 UTC | Jun 27, 23:19 UTC | 35m |
| 2026-06-24 | ETH682 | - | Jun 24, 18:20 UTC | Jun 24, 23:59 UTC | 5h 40m |
| 2026-06-24 | ETH423 | - | Jun 24, 00:20 UTC | Jun 24, 00:30 UTC | 10m |
| 2026-06-20 | ETH623 | - | Jun 20, 00:49 UTC | Jun 20, 01:09 UTC | 20m |
| 2026-06-19 | ETH622 | - | Jun 19, 22:55 UTC | Jun 19, 23:25 UTC | 30m |
| 2026-06-19 | ETH691 | - | Jun 19, 10:50 UTC | Jun 19, 10:59 UTC | 10m |
| 2026-06-19 | ETH690 | - | Jun 19, 02:04 UTC | Jun 19, 02:29 UTC | 25m |
| 2026-06-13 | ETH612 | - | Jun 13, 23:25 UTC | Jun 14, 00:00 UTC | 35m |
| 2026-06-12 | ETH858 | JNB → ADD | Jun 12, 21:10 UTC | Jun 12, 21:35 UTC | 25m |
| 2026-06-12 | ETH849 | ADD → JNB | Jun 12, 14:40 UTC | Jun 12, 18:40 UTC | 4h 0m |
| 2026-06-11 | ETH693 | MAA → ADD | Jun 11, 05:00 UTC | Jun 11, 05:25 UTC | 25m |
| 2026-06-11 | ETH692 | ADD → MAA | Jun 11, 02:00 UTC | Jun 11, 02:20 UTC | 20m |
| 2026-06-09 | ETH723 | IST → ADD | Jun 9, 05:35 UTC | Jun 9, 07:25 UTC | 1h 50m |
| 2026-06-09 | ETH720 | ADD → IST | Jun 9, 00:00 UTC | Jun 9, 01:50 UTC | 1h 50m |
| 2026-06-07 | ETH697 | MAA → ADD | Jun 7, 21:35 UTC | Jun 7, 22:05 UTC | 30m |
| 2026-06-07 | ETH696 | ADD → MAA | Jun 7, 18:45 UTC | Jun 7, 19:20 UTC | 35m |
| 2026-06-06 | ETH962 | DLA → ADD | Jun 6, 00:45 UTC | Jun 6, 01:10 UTC | 25m |
| 2026-06-05 | ETH963 | ADD → DLA | Jun 5, 22:50 UTC | Jun 5, 23:15 UTC | 25m |
| 2026-06-01 | ETH962 | DLA → ADD | Jun 1, 01:30 UTC | Jun 1, 23:05 UTC | 21h 35m |
| 2026-05-31 | ETH963 | ADD → DLA | May 31, 23:25 UTC | May 31, 23:45 UTC | 20m |
| 2026-05-27 | ETH622 | ADD → SHJ | May 27, 22:50 UTC | May 27, 23:20 UTC | 30m |
| 2026-05-26 | ETH622 | ADD → SHJ | May 26, 22:59 UTC | May 26, 23:39 UTC | 40m |
| 2026-05-25 | ETH622 | ADD → SHJ | May 25, 22:44 UTC | May 25, 23:19 UTC | 35m |
| 2026-05-19 | ETH622 | ADD → SHJ | May 19, 23:00 UTC | May 19, 23:30 UTC | 30m |
| 2026-05-15 | ETH623 | SHJ → ADD | May 15, 01:20 UTC | May 15, 01:40 UTC | 20m |
| 2026-05-14 | ETH622 | ADD → SHJ | May 14, 23:10 UTC | May 14, 23:40 UTC | 30m |
| 2026-05-10 | ETH622 | ADD → SHJ | May 10, 22:55 UTC | May 10, 23:25 UTC | 30m |
| 2026-05-09 | ETH623 | SHJ → ADD | May 9, 01:00 UTC | May 9, 01:20 UTC | 20m |
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 ET-BAP page for operator, model, and routing details .