sensors Mode-S transponder
040187
ICAO 24-bit transponder address · allocated to Ethiopia
Currently assigned to ET-AXK · BOEING 787-9 Dreamliner
- Hex
- 040187
- Octal
- 01000607
- Decimal
- 262,535
- Country
- ET
- Tail
- ET-AXK
- Type
- B789
- Flights observed
- 90
- Distinct callsigns
- 20
- Country
- ET
- Last broadcast
- 1d ago
Current position
Country allocation
The ICAO 24-bit address 040187 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 |
|---|---|---|---|
| ETH724 | Ethiopian Airlines | 7 | 2026-04-20 |
| ETH737 | Ethiopian Airlines | 6 | 2026-05-18 |
| ETH736 | Ethiopian Airlines | 6 | 2026-05-18 |
| ETH552 | Ethiopian Airlines | 6 | 2026-05-25 |
| ETH844 | Ethiopian Airlines | 5 | 2026-05-16 |
| ETH574 | Ethiopian Airlines | 5 | 2026-05-27 |
| ETH553 | Ethiopian Airlines | 5 | 2026-05-25 |
| ETH845 | Ethiopian Airlines | 4 | 2026-04-27 |
| ETH750 | Ethiopian Airlines | 4 | 2026-04-26 |
| ETH740 | Ethiopian Airlines | 4 | 2026-04-18 |
| ETH725 | Ethiopian Airlines | 4 | 2026-04-20 |
| ETH713 | Ethiopian Airlines | 4 | 2026-05-09 |
| ETH628 | Ethiopian Airlines | 4 | 2026-05-02 |
| ETH751 | Ethiopian Airlines | 3 | 2026-04-26 |
| ETH629 | Ethiopian Airlines | 3 | 2026-05-02 |
| ETH741 | Ethiopian Airlines | 2 | 2026-04-18 |
| ETH712 | Ethiopian Airlines | 2 | 2026-05-09 |
| ETH707 | Ethiopian Airlines | 2 | 2026-05-15 |
| ETH706 | Ethiopian Airlines | 2 | 2026-05-15 |
| ETH575 | Ethiopian Airlines | 2 | 2026-05-27 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-27 | ETH575 | ORD → ADD | May 27, 15:40 UTC | May 28, 02:15 UTC | 10h 35m |
| 2026-05-27 | ETH574 | DUB → ORD | May 27, 03:29 UTC | May 27, 12:40 UTC | 9h 10m |
| 2026-05-27 | ETH574 | DUB → ORD | May 27, 00:04 UTC | May 27, 02:04 UTC | 2h 0m |
| 2026-05-25 | ETH553 | YYZ → ADD | May 25, 15:15 UTC | May 26, 00:24 UTC | 9h 9m |
| 2026-05-25 | ETH552 | ADD → DUB | May 25, 03:45 UTC | May 25, 12:25 UTC | 8h 40m |
| 2026-05-25 | ETH552 | ADD → DUB | May 25, 01:55 UTC | May 25, 02:10 UTC | 15m |
| 2026-05-23 | ETH553 | YYZ → ADD | May 23, 21:50 UTC | May 24, 16:00 UTC | 18h 10m |
| 2026-05-23 | ETH553 | YYZ → ADD | May 23, 20:25 UTC | May 24, 16:00 UTC | 19h 35m |
| 2026-05-23 | ETH553 | YYZ → ADD | May 23, 15:05 UTC | May 23, 22:25 UTC | 7h 21m |
| 2026-05-23 | ETH552 | ADD → DUB | May 23, 03:50 UTC | May 23, 12:35 UTC | 8h 45m |
| 2026-05-22 | ETH552 | ADD → DUB | May 22, 13:05 UTC | May 23, 01:55 UTC | 12h 50m |
| 2026-05-22 | ETH953 | ADD → DLA | May 22, 10:40 UTC | May 22, 11:00 UTC | 20m |
| 2026-05-20 | ETH575 | ORD → ADD | May 20, 16:20 UTC | May 21, 01:40 UTC | 9h 20m |
| 2026-05-20 | ETH574 | DUB → ORD | May 20, 03:30 UTC | May 20, 13:30 UTC | 10h 1m |
| 2026-05-19 | ETH574 | DUB → ORD | May 19, 15:55 UTC | May 20, 02:00 UTC | 10h 5m |
| 2026-05-19 | ETH574 | DUB → ORD | May 19, 07:40 UTC | May 20, 02:00 UTC | 18h 20m |
| 2026-05-18 | ETH737 | MXP → ADD | May 18, 21:50 UTC | May 19, 16:00 UTC | 18h 10m |
| 2026-05-18 | ETH737 | MXP → ADD | May 18, 19:10 UTC | May 18, 19:40 UTC | 30m |
| 2026-05-18 | ETH736 | MXP → ZRH | May 18, 05:20 UTC | May 18, 05:55 UTC | 35m |
| 2026-05-17 | ETH736 | MXP → ZRH | May 17, 15:15 UTC | May 18, 04:00 UTC | 12h 45m |
| 2026-05-17 | ETH913 | ADD → ADD | May 17, 11:10 UTC | May 17, 11:30 UTC | 20m |
| 2026-05-16 | ETH844 | CPT → ADD | May 16, 12:11 UTC | May 16, 12:25 UTC | 15m |
| 2026-05-15 | ETH707 | FRA → ADD | May 15, 20:40 UTC | May 16, 10:50 UTC | 14h 11m |
| 2026-05-15 | ETH706 | ADD → FRA | May 15, 01:15 UTC | May 15, 04:15 UTC | 3h 0m |
| 2026-05-13 | ETH553 | YYZ → ADD | May 13, 15:25 UTC | May 14, 00:20 UTC | 8h 55m |
| 2026-05-13 | ETH552 | ADD → DUB | May 13, 04:50 UTC | May 13, 13:20 UTC | 8h 30m |
| 2026-05-12 | ETH552 | ADD → DUB | May 12, 14:00 UTC | May 13, 03:30 UTC | 13h 30m |
| 2026-05-11 | ETH737 | MXP → ADD | May 11, 21:55 UTC | May 12, 10:35 UTC | 12h 40m |
| 2026-05-11 | ETH737 | MXP → ADD | May 11, 19:15 UTC | May 11, 19:50 UTC | 35m |
| 2026-05-11 | ETH736 | MXP → ZRH | May 11, 06:00 UTC | May 11, 06:35 UTC | 35m |
| 2026-05-11 | ETH736 | MXP → ZRH | May 11, 01:10 UTC | May 11, 04:40 UTC | 3h 30m |
| 2026-05-10 | ETH846 | CPT → ADD | May 10, 13:55 UTC | May 10, 14:04 UTC | 10m |
| 2026-05-09 | ETH713 | FCO → ADD | May 9, 21:09 UTC | May 10, 12:30 UTC | 15h 20m |
| 2026-05-09 | ETH712 | ADD → FCO | May 9, 01:25 UTC | May 9, 03:30 UTC | 2h 5m |
| 2026-05-06 | ETH737 | MXP → ADD | May 6, 21:55 UTC | May 7, 00:05 UTC | 2h 10m |
| 2026-05-06 | ETH737 | MXP → ADD | May 6, 19:10 UTC | May 6, 19:50 UTC | 40m |
| 2026-05-06 | ETH736 | MXP → ZRH | May 6, 05:25 UTC | May 6, 05:55 UTC | 30m |
| 2026-05-05 | ETH736 | MXP → ZRH | May 5, 13:45 UTC | May 6, 03:55 UTC | 14h 10m |
| 2026-05-04 | ETH713 | FCO → ADD | May 4, 21:50 UTC | May 5, 16:55 UTC | 19h 5m |
| 2026-05-04 | ETH713 | FCO → ADD | May 4, 21:20 UTC | May 5, 16:55 UTC | 19h 35m |
| 2026-05-03 | ETH712 | ADD → FCO | May 3, 13:55 UTC | May 4, 05:25 UTC | 15h 30m |
| 2026-05-02 | ETH629 | BKK → ADD | May 2, 19:05 UTC | May 3, 07:20 UTC | 12h 14m |
| 2026-05-02 | ETH629 | BKK → ADD | May 2, 14:40 UTC | May 2, 16:40 UTC | 2h 0m |
| 2026-05-02 | ETH629 | BKK → ADD | May 2, 13:45 UTC | May 2, 13:55 UTC | 10m |
| 2026-05-02 | ETH628 | BKK → CGK | May 2, 09:55 UTC | May 2, 10:05 UTC | 10m |
| 2026-05-02 | ETH628 | BKK → CGK | May 2, 07:10 UTC | May 2, 09:00 UTC | 1h 50m |
| 2026-05-02 | ETH628 | BKK → CGK | May 2, 02:05 UTC | May 2, 05:20 UTC | 3h 15m |
| 2026-05-01 | ETH628 | BKK → CGK | May 1, 08:40 UTC | May 2, 05:20 UTC | 20h 40m |
| 2026-05-01 | ETH907 | BKO → DSS | May 1, 06:20 UTC | May 1, 07:05 UTC | 45m |
| 2026-04-29 | ETH713 | FCO → ADD | Apr 29, 21:20 UTC | Apr 29, 22:50 UTC | 1h 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-AXK page for operator, model, and routing details .