sensors Mode-S transponder
040046
ICAO 24-bit transponder address · allocated to Ethiopia
Currently assigned to ET-AOP · BOEING 787-8 Dreamliner
- Hex
- 040046
- Octal
- 01000106
- Decimal
- 262,214
- Country
- ET
- Tail
- ET-AOP
- Type
- B788
- Flights observed
- 237
- Distinct callsigns
- 20
- Country
- ET
- Last broadcast
- Jul 26, 21:30 UTC
Last known position
Country allocation
The ICAO 24-bit address 040046 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 |
|---|---|---|---|
| ETH761 | Ethiopian Airlines | 69 | 2026-07-24 |
| ETH760 | Ethiopian Airlines | 53 | 2026-07-24 |
| ETH512 | - | 11 | 2026-07-04 |
| ETH516 | - | 9 | 2026-07-18 |
| ETH514 | - | 9 | 2026-07-12 |
| ETH517 | - | 8 | 2026-07-19 |
| ETH907 | - | 7 | 2026-06-29 |
| ETH724 | - | 7 | 2026-07-06 |
| ETH725 | - | 6 | 2026-07-06 |
| ETH513 | - | 6 | 2026-07-05 |
| ETH515 | - | 5 | 2026-07-13 |
| ETH8801 | - | 4 | 2026-07-11 |
| ETH553 | - | 4 | 2026-07-14 |
| ETH925 | Ethiopian Airlines | 3 | 2026-04-24 |
| ETH8804 | - | 3 | 2026-07-11 |
| ETH751 | Ethiopian Airlines | 3 | 2026-05-24 |
| ETH750 | Ethiopian Airlines | 3 | 2026-05-24 |
| ETH715 | Ethiopian Airlines | 3 | 2026-05-26 |
| ETH714 | Ethiopian Airlines | 2 | 2026-05-26 |
| ETH680 | - | 2 | 2026-04-30 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | ETH519 | ATL → ADD | Jul 26, 15:10 UTC | Jul 26, 21:30 UTC | 6h 20m |
| 2026-07-26 | ETH518 | ADD → DUB | Jul 26, 03:25 UTC | Jul 26, 12:55 UTC | 9h 31m |
| 2026-07-25 | ETH518 | ADD → DUB | Jul 25, 08:10 UTC | Jul 26, 02:00 UTC | 17h 50m |
| 2026-07-24 | ETH761 | DME → ADD | Jul 24, 19:40 UTC | Jul 25, 08:10 UTC | 12h 30m |
| 2026-07-24 | ETH761 | DME → ADD | Jul 24, 03:35 UTC | Jul 24, 23:25 UTC | 19h 50m |
| 2026-07-24 | ETH761 | DME → ADD | Jul 24, 01:35 UTC | Jul 24, 23:25 UTC | 21h 50m |
| 2026-07-24 | ETH760 | ADD → DME | Jul 24, 00:05 UTC | Jul 24, 23:25 UTC | 23h 20m |
| 2026-07-23 | ETH760 | ADD → DME | Jul 23, 14:00 UTC | Jul 24, 04:05 UTC | 14h 5m |
| 2026-07-22 | ETH761 | DME → ADD | Jul 22, 20:35 UTC | Jul 23, 14:00 UTC | 17h 25m |
| 2026-07-22 | ETH761 | DME → ADD | Jul 22, 03:35 UTC | Jul 22, 23:40 UTC | 20h 5m |
| 2026-07-22 | ETH761 | DME → ADD | Jul 22, 01:35 UTC | Jul 22, 23:40 UTC | 22h 5m |
| 2026-07-21 | ETH760 | ADD → DME | Jul 21, 23:45 UTC | Jul 22, 23:30 UTC | 23h 45m |
| 2026-07-20 | ETH761 | - | Jul 20, 20:35 UTC | Jul 20, 23:20 UTC | 2h 45m |
| 2026-07-19 | ETH760 | ADD → DME | Jul 19, 14:55 UTC | Jul 20, 04:40 UTC | 13h 45m |
| 2026-07-19 | ETH760 | ADD → DME | Jul 19, 08:35 UTC | Jul 20, 04:40 UTC | 20h 5m |
| 2026-07-19 | ETH517 | - | Jul 19, 02:25 UTC | Jul 20, 01:30 UTC | 23h 5m |
| 2026-07-18 | ETH516 | - | Jul 18, 14:45 UTC | Jul 18, 23:30 UTC | 8h 45m |
| 2026-07-17 | ETH687 | - | Jul 17, 21:50 UTC | Jul 17, 22:05 UTC | 15m |
| 2026-07-17 | ETH717 | - | Jul 17, 05:25 UTC | Jul 17, 20:04 UTC | 14h 40m |
| 2026-07-17 | ETH712 | - | Jul 17, 00:30 UTC | Jul 17, 03:30 UTC | 3h 0m |
| 2026-07-16 | ETH417 | - | Jul 16, 01:55 UTC | Jul 17, 01:29 UTC | 23h 35m |
| 2026-07-15 | ETH416 | - | Jul 15, 13:55 UTC | Jul 16, 00:20 UTC | 10h 25m |
| 2026-07-14 | ETH553 | - | Jul 14, 23:35 UTC | Jul 15, 23:30 UTC | 23h 55m |
| 2026-07-14 | ETH553 | - | Jul 14, 20:35 UTC | Jul 15, 14:00 UTC | 17h 24m |
| 2026-07-14 | ETH553 | - | Jul 14, 15:35 UTC | Jul 15, 14:00 UTC | 22h 24m |
| 2026-07-14 | ETH553 | - | Jul 14, 14:55 UTC | Jul 15, 01:00 UTC | 10h 4m |
| 2026-07-14 | ETH552 | FCO → YYZ | Jul 14, 04:00 UTC | Jul 14, 12:25 UTC | 8h 25m |
| 2026-07-13 | ETH552 | - | Jul 13, 08:35 UTC | Jul 14, 02:30 UTC | 17h 55m |
| 2026-07-13 | ETH515 | - | Jul 13, 02:15 UTC | Jul 14, 01:30 UTC | 23h 15m |
| 2026-07-12 | ETH514 | - | Jul 12, 15:05 UTC | Jul 12, 23:15 UTC | 8h 10m |
| 2026-07-11 | ETH8801 | - | Jul 11, 15:35 UTC | Jul 12, 15:30 UTC | 23h 55m |
| 2026-07-11 | ETH8801 | - | Jul 11, 15:15 UTC | Jul 11, 17:05 UTC | 1h 50m |
| 2026-07-11 | ETH8804 | - | Jul 11, 11:00 UTC | Jul 11, 13:15 UTC | 2h 15m |
| 2026-07-10 | ETH8804 | - | Jul 10, 15:45 UTC | Jul 11, 13:15 UTC | 21h 31m |
| 2026-07-10 | ETH8801 | - | Jul 10, 06:40 UTC | Jul 10, 13:00 UTC | 6h 20m |
| 2026-07-09 | ETH8802 | - | Jul 9, 21:40 UTC | Jul 10, 04:45 UTC | 7h 5m |
| 2026-07-09 | ETH8999 | - | Jul 9, 06:35 UTC | Jul 9, 19:40 UTC | 13h 5m |
| 2026-07-09 | ETH8801 | - | Jul 9, 04:40 UTC | Jul 9, 05:05 UTC | 25m |
| 2026-07-07 | ETH8804 | - | Jul 7, 16:10 UTC | Jul 7, 16:25 UTC | 15m |
| 2026-07-06 | ETH725 | VIE → DSS | Jul 6, 20:25 UTC | Jul 7, 14:30 UTC | 18h 5m |
| 2026-07-06 | ETH725 | - | Jul 6, 17:40 UTC | Jul 6, 18:50 UTC | 1h 10m |
| 2026-07-06 | ETH724 | VIE → CPH | Jul 6, 06:45 UTC | Jul 6, 08:10 UTC | 1h 25m |
| 2026-07-05 | ETH724 | - | Jul 5, 11:35 UTC | Jul 6, 05:35 UTC | 18h 0m |
| 2026-07-05 | ETH724 | - | Jul 5, 11:20 UTC | Jul 6, 05:35 UTC | 18h 15m |
| 2026-07-05 | ETH724 | - | Jul 5, 05:35 UTC | Jul 6, 05:30 UTC | 23h 55m |
| 2026-07-05 | ETH513 | - | Jul 5, 04:55 UTC | Jul 6, 03:30 UTC | 22h 35m |
| 2026-07-04 | ETH512 | - | Jul 4, 16:45 UTC | Jul 5, 00:55 UTC | 8h 10m |
| 2026-07-03 | ETH512 | - | Jul 3, 23:35 UTC | Jul 4, 17:45 UTC | 18h 10m |
| 2026-07-03 | ETH761 | DME → ADD | Jul 3, 21:35 UTC | Jul 4, 17:45 UTC | 20h 10m |
| 2026-07-03 | ETH761 | DME → ADD | Jul 3, 21:10 UTC | Jul 4, 17:45 UTC | 20h 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 ET-AOP page for operator, model, and routing details .