sensors Mode-S transponder
040188
ICAO 24-bit transponder address · allocated to Ethiopia
Currently assigned to ET-AXL · BOEING 787-9 Dreamliner
- Hex
- 040188
- Octal
- 01000610
- Decimal
- 262,536
- Country
- ET
- Tail
- ET-AXL
- Type
- B789
- Flights observed
- 110
- Distinct callsigns
- 20
- Country
- ET
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 040188 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 |
|---|---|---|---|
| ETH609 | Ethiopian Airlines | 11 | 2026-05-27 |
| ETH645 | Ethiopian Airlines | 10 | 2026-05-20 |
| ETH644 | Ethiopian Airlines | 10 | 2026-05-20 |
| ETH608 | Ethiopian Airlines | 9 | 2026-05-27 |
| ETH638 | Ethiopian Airlines | 8 | 2026-05-08 |
| ETH639 | Ethiopian Airlines | 7 | 2026-05-08 |
| ETH731 | Ethiopian Airlines | 6 | 2026-05-24 |
| ETH730 | Ethiopian Airlines | 6 | 2026-05-24 |
| ETH552 | Ethiopian Airlines | 5 | 2026-05-29 |
| ETH553 | Ethiopian Airlines | 4 | 2026-05-29 |
| ETH909 | Ethiopian Airlines | 3 | 2026-05-05 |
| ETH724 | Ethiopian Airlines | 3 | 2026-04-25 |
| ETH629 | Ethiopian Airlines | 3 | 2026-05-14 |
| ETH512 | Ethiopian Airlines | 3 | 2026-05-25 |
| ETH846 | Ethiopian Airlines | 2 | 2026-05-23 |
| ETH725 | Ethiopian Airlines | 2 | 2026-04-25 |
| ETH713 | Ethiopian Airlines | 2 | 2026-04-19 |
| ETH575 | Ethiopian Airlines | 2 | 2026-04-13 |
| ETH516 | Ethiopian Airlines | 2 | 2026-05-18 |
| ETH513 | Ethiopian Airlines | 2 | 2026-05-26 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | ETH553 | YYZ → ADD | May 29, 14:55 UTC | May 30, 00:00 UTC | 9h 5m |
| 2026-05-29 | ETH552 | ADD → DUB | May 29, 03:55 UTC | May 29, 12:20 UTC | 8h 25m |
| 2026-05-28 | ETH552 | ADD → DUB | May 28, 23:40 UTC | May 29, 02:10 UTC | 2h 30m |
| 2026-05-28 | ETH552 | ADD → DUB | May 28, 07:50 UTC | May 29, 02:10 UTC | 18h 20m |
| 2026-05-27 | ETH609 | HKG → BKK | May 27, 19:40 UTC | May 28, 07:50 UTC | 12h 10m |
| 2026-05-27 | ETH609 | HKG → BKK | May 27, 16:25 UTC | May 27, 18:15 UTC | 1h 50m |
| 2026-05-27 | ETH608 | BKK → HKG | May 27, 06:29 UTC | May 27, 07:20 UTC | 51m |
| 2026-05-27 | ETH608 | BKK → HKG | May 27, 01:29 UTC | May 27, 04:59 UTC | 3h 30m |
| 2026-05-26 | ETH608 | BKK → HKG | May 26, 08:59 UTC | May 27, 04:59 UTC | 20h 0m |
| 2026-05-26 | ETH513 | JFK → ABJ | May 26, 03:09 UTC | May 27, 01:59 UTC | 22h 50m |
| 2026-05-25 | ETH512 | LFW → JFK | May 25, 15:50 UTC | May 26, 00:14 UTC | 8h 25m |
| 2026-05-24 | ETH512 | LFW → JFK | May 24, 23:10 UTC | May 25, 16:40 UTC | 17h 30m |
| 2026-05-24 | ETH731 | DUB → ADD | May 24, 20:15 UTC | May 25, 16:40 UTC | 20h 25m |
| 2026-05-24 | ETH731 | DUB → ADD | May 24, 17:45 UTC | May 24, 18:40 UTC | 55m |
| 2026-05-24 | ETH730 | VIE → BRU | May 24, 05:05 UTC | May 24, 06:00 UTC | 55m |
| 2026-05-24 | ETH730 | VIE → BRU | May 24, 01:15 UTC | May 24, 04:00 UTC | 2h 45m |
| 2026-05-23 | ETH846 | CPT → ADD | May 23, 13:40 UTC | May 23, 14:00 UTC | 20m |
| 2026-05-22 | ETH553 | YYZ → ADD | May 22, 19:45 UTC | May 23, 12:15 UTC | 16h 29m |
| 2026-05-22 | ETH553 | YYZ → ADD | May 22, 16:05 UTC | May 23, 12:15 UTC | 20h 9m |
| 2026-05-22 | ETH553 | YYZ → ADD | May 22, 14:55 UTC | May 23, 12:15 UTC | 21h 19m |
| 2026-05-22 | ETH552 | ADD → DUB | May 22, 03:35 UTC | May 22, 12:05 UTC | 8h 30m |
| 2026-05-22 | ETH552 | ADD → DUB | May 22, 00:10 UTC | May 22, 02:00 UTC | 1h 50m |
| 2026-05-20 | ETH645 | HKG → ADD | May 20, 18:45 UTC | May 20, 22:00 UTC | 3h 15m |
| 2026-05-20 | ETH645 | HKG → ADD | May 20, 17:00 UTC | May 20, 17:15 UTC | 15m |
| 2026-05-20 | ETH645 | HKG → ADD | May 20, 13:30 UTC | May 20, 15:10 UTC | 1h 40m |
| 2026-05-20 | ETH644 | HKG → MNL | May 20, 08:15 UTC | May 20, 09:55 UTC | 1h 40m |
| 2026-05-20 | ETH644 | HKG → MNL | May 20, 06:05 UTC | May 20, 06:35 UTC | 30m |
| 2026-05-19 | ETH644 | HKG → MNL | May 19, 15:05 UTC | May 20, 03:40 UTC | 12h 35m |
| 2026-05-19 | ETH517 | LFW → ADD | May 19, 02:35 UTC | May 20, 01:30 UTC | 22h 55m |
| 2026-05-18 | ETH516 | LFW → IAD | May 18, 15:15 UTC | May 19, 00:00 UTC | 8h 44m |
| 2026-05-17 | ETH516 | LFW → IAD | May 17, 21:35 UTC | May 18, 16:10 UTC | 18h 35m |
| 2026-05-17 | ETH645 | HKG → ADD | May 17, 18:35 UTC | May 18, 16:10 UTC | 21h 35m |
| 2026-05-17 | ETH645 | HKG → ADD | May 17, 16:50 UTC | May 17, 17:05 UTC | 15m |
| 2026-05-17 | ETH645 | HKG → ADD | May 17, 14:55 UTC | May 17, 15:15 UTC | 20m |
| 2026-05-17 | ETH645 | HKG → ADD | May 17, 13:31 UTC | May 17, 14:25 UTC | 55m |
| 2026-05-17 | ETH644 | HKG → MNL | May 17, 08:30 UTC | May 17, 10:15 UTC | 1h 45m |
| 2026-05-17 | ETH644 | HKG → MNL | May 17, 06:15 UTC | May 17, 06:40 UTC | 25m |
| 2026-05-17 | ETH644 | HKG → MNL | May 17, 01:15 UTC | May 17, 03:55 UTC | 2h 40m |
| 2026-05-16 | ETH644 | HKG → MNL | May 16, 06:06 UTC | May 17, 03:55 UTC | 21h 50m |
| 2026-05-16 | ETH610 | ADD → BOM | May 16, 01:55 UTC | May 16, 02:50 UTC | 55m |
| 2026-05-14 | ETH629 | BKK → ADD | May 14, 21:25 UTC | May 14, 22:00 UTC | 35m |
| 2026-05-14 | ETH629 | BKK → ADD | May 14, 19:00 UTC | May 14, 19:15 UTC | 15m |
| 2026-05-14 | ETH629 | BKK → ADD | May 14, 14:01 UTC | May 14, 16:55 UTC | 2h 55m |
| 2026-05-14 | ETH628 | BKK → CGK | May 14, 00:40 UTC | May 14, 04:51 UTC | 4h 10m |
| 2026-05-12 | ETH731 | DUB → ADD | May 12, 20:20 UTC | May 13, 10:25 UTC | 14h 5m |
| 2026-05-12 | ETH731 | DUB → ADD | May 12, 17:45 UTC | May 12, 18:40 UTC | 55m |
| 2026-05-12 | ETH730 | VIE → BRU | May 12, 05:25 UTC | May 12, 06:10 UTC | 45m |
| 2026-05-12 | ETH730 | VIE → BRU | May 12, 02:45 UTC | May 12, 04:05 UTC | 1h 20m |
| 2026-05-11 | ETH845 | ADD → CPT | May 11, 11:15 UTC | May 11, 11:50 UTC | 35m |
| 2026-05-10 | ETH731 | DUB → ADD | May 10, 20:09 UTC | May 11, 06:40 UTC | 10h 30m |
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-AXL page for operator, model, and routing details .