sensors Mode-S transponder
040143
ICAO 24-bit transponder address · allocated to Ethiopia
Currently assigned to ET-AUR · BOEING 787-9 Dreamliner
- Hex
- 040143
- Octal
- 01000503
- Decimal
- 262,467
- Country
- ET
- Tail
- ET-AUR
- Type
- B789
- Flights observed
- 225
- Distinct callsigns
- 20
- Country
- ET
- Last broadcast
- 37m ago
Last known position
Country allocation
The ICAO 24-bit address 040143 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 |
|---|---|---|---|
| ETH628 | - | 32 | 2026-07-12 |
| ETH629 | - | 31 | 2026-07-12 |
| ETH645 | Ethiopian Airlines | 15 | 2026-05-31 |
| ETH644 | Ethiopian Airlines | 12 | 2026-05-31 |
| ETH724 | - | 11 | 2026-06-26 |
| ETH738 | - | 10 | 2026-07-07 |
| ETH725 | - | 10 | 2026-06-26 |
| ETH739 | - | 8 | 2026-07-07 |
| ETH846 | - | 7 | 2026-07-08 |
| ETH844 | - | 7 | 2026-07-13 |
| ETH609 | Ethiopian Airlines | 7 | 2026-05-15 |
| ETH925 | Ethiopian Airlines | 6 | 2026-05-20 |
| ETH639 | Ethiopian Airlines | 5 | 2026-04-30 |
| ETH638 | Ethiopian Airlines | 5 | 2026-04-30 |
| ETH727 | - | 4 | 2026-07-09 |
| ETH726 | - | 4 | 2026-07-09 |
| ETH714 | - | 4 | 2026-07-14 |
| ETH608 | Ethiopian Airlines | 4 | 2026-05-15 |
| ETH907 | - | 3 | 2026-07-10 |
| ETH847 | Ethiopian Airlines | 3 | 2026-05-06 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | ETH714 | ARN → OSL | Jul 14, 06:00 UTC | Jul 14, 06:35 UTC | 35m |
| 2026-07-14 | ETH714 | - | Jul 14, 00:30 UTC | Jul 14, 04:30 UTC | 4h 0m |
| 2026-07-13 | ETH844 | - | Jul 13, 12:15 UTC | Jul 13, 12:30 UTC | 15m |
| 2026-07-12 | ETH845 | - | Jul 12, 21:45 UTC | Jul 13, 11:05 UTC | 13h 20m |
| 2026-07-12 | ETH629 | - | Jul 12, 19:10 UTC | Jul 12, 20:25 UTC | 1h 15m |
| 2026-07-12 | ETH629 | - | Jul 12, 14:05 UTC | Jul 12, 17:05 UTC | 3h 0m |
| 2026-07-12 | ETH628 | - | Jul 12, 08:20 UTC | Jul 12, 10:05 UTC | 1h 45m |
| 2026-07-12 | ETH628 | - | Jul 12, 07:15 UTC | Jul 12, 07:25 UTC | 10m |
| 2026-07-12 | ETH628 | - | Jul 12, 02:15 UTC | Jul 12, 05:40 UTC | 3h 25m |
| 2026-07-11 | ETH628 | - | Jul 11, 08:50 UTC | Jul 12, 05:40 UTC | 20h 50m |
| 2026-07-10 | ETH907 | CPT → DSS | Jul 10, 13:40 UTC | Jul 11, 06:40 UTC | 17h 0m |
| 2026-07-09 | ETH727 | - | Jul 9, 21:20 UTC | Jul 10, 12:15 UTC | 14h 55m |
| 2026-07-09 | ETH727 | MAN → MRS | Jul 9, 17:50 UTC | Jul 9, 19:30 UTC | 1h 40m |
| 2026-07-09 | ETH726 | - | Jul 9, 05:30 UTC | Jul 9, 07:20 UTC | 1h 50m |
| 2026-07-08 | ETH726 | - | Jul 8, 14:50 UTC | Jul 9, 04:00 UTC | 13h 10m |
| 2026-07-08 | ETH846 | - | Jul 8, 13:35 UTC | Jul 8, 13:55 UTC | 20m |
| 2026-07-07 | ETH739 | - | Jul 7, 19:40 UTC | Jul 8, 12:20 UTC | 16h 40m |
| 2026-07-07 | ETH739 | - | Jul 7, 18:10 UTC | Jul 7, 18:25 UTC | 15m |
| 2026-07-07 | ETH738 | - | Jul 7, 06:00 UTC | Jul 7, 06:25 UTC | 25m |
| 2026-07-06 | ETH738 | - | Jul 6, 10:15 UTC | Jul 7, 04:45 UTC | 18h 30m |
| 2026-07-05 | ETH575 | ORD → ADD | Jul 5, 15:40 UTC | Jul 6, 10:20 UTC | 18h 40m |
| 2026-07-05 | ETH574 | - | Jul 5, 03:35 UTC | Jul 5, 13:05 UTC | 9h 30m |
| 2026-07-04 | ETH574 | - | Jul 4, 23:35 UTC | Jul 5, 01:40 UTC | 2h 5m |
| 2026-07-03 | ETH729 | - | Jul 3, 20:55 UTC | Jul 4, 00:00 UTC | 3h 5m |
| 2026-07-03 | ETH729 | MAN → GVA | Jul 3, 17:55 UTC | Jul 3, 19:20 UTC | 1h 25m |
| 2026-07-03 | ETH728 | GVA → MAN | Jul 3, 05:35 UTC | Jul 3, 07:10 UTC | 1h 35m |
| 2026-07-02 | ETH728 | - | Jul 2, 13:50 UTC | Jul 3, 04:05 UTC | 14h 15m |
| 2026-06-30 | ETH715 | - | Jun 30, 20:20 UTC | Jul 1, 00:40 UTC | 4h 20m |
| 2026-06-30 | ETH715 | OSL → ARN | Jun 30, 17:55 UTC | Jun 30, 18:30 UTC | 35m |
| 2026-06-30 | ETH714 | ARN → OSL | Jun 30, 05:55 UTC | Jun 30, 06:40 UTC | 45m |
| 2026-06-29 | ETH714 | - | Jun 29, 23:54 UTC | Jun 30, 04:00 UTC | 4h 6m |
| 2026-06-28 | ETH713 | FCO → ADD | Jun 28, 21:24 UTC | Jun 28, 23:44 UTC | 2h 20m |
| 2026-06-28 | ETH716 | - | Jun 28, 05:29 UTC | Jun 28, 19:34 UTC | 14h 5m |
| 2026-06-27 | ETH712 | - | Jun 27, 13:24 UTC | Jun 28, 03:00 UTC | 13h 35m |
| 2026-06-27 | ETH844 | - | Jun 27, 12:15 UTC | Jun 27, 12:29 UTC | 15m |
| 2026-06-26 | ETH725 | VIE → CPT | Jun 26, 20:24 UTC | Jun 27, 10:40 UTC | 14h 15m |
| 2026-06-26 | ETH725 | CPH → VIE | Jun 26, 17:40 UTC | Jun 26, 18:54 UTC | 1h 15m |
| 2026-06-26 | ETH724 | VIE → CPH | Jun 26, 05:19 UTC | Jun 26, 06:35 UTC | 1h 15m |
| 2026-06-26 | ETH724 | - | Jun 26, 01:15 UTC | Jun 26, 03:45 UTC | 2h 30m |
| 2026-06-24 | ETH725 | - | Jun 24, 20:14 UTC | Jun 24, 23:04 UTC | 2h 50m |
| 2026-06-24 | ETH725 | CPH → VIE | Jun 24, 17:34 UTC | Jun 24, 18:50 UTC | 1h 15m |
| 2026-06-24 | ETH724 | VIE → CPH | Jun 24, 05:20 UTC | Jun 24, 06:39 UTC | 1h 20m |
| 2026-06-23 | ETH724 | CPT → VIE | Jun 23, 13:29 UTC | Jun 24, 03:50 UTC | 14h 20m |
| 2026-06-22 | ETH737 | MXP → ADD | Jun 22, 21:45 UTC | Jun 23, 12:15 UTC | 14h 30m |
| 2026-06-22 | ETH737 | MXP → ADD | Jun 22, 19:14 UTC | Jun 22, 19:54 UTC | 40m |
| 2026-06-22 | ETH736 | MXP → ZRH | Jun 22, 05:15 UTC | Jun 22, 05:49 UTC | 35m |
| 2026-06-21 | ETH736 | CPT → MXP | Jun 21, 12:10 UTC | Jun 22, 03:54 UTC | 15h 45m |
| 2026-06-20 | ETH845 | - | Jun 20, 18:59 UTC | Jun 21, 11:05 UTC | 16h 5m |
| 2026-06-20 | ETH629 | BKK → ADD | Jun 20, 13:44 UTC | Jun 20, 16:44 UTC | 3h 0m |
| 2026-06-20 | ETH628 | - | Jun 20, 07:29 UTC | Jun 20, 10:25 UTC | 2h 55m |
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-AUR page for operator, model, and routing details .