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
- 201
- 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 |
|---|---|---|---|
| ETH645 | Ethiopian Airlines | 15 | 2026-06-06 |
| ETH644 | Ethiopian Airlines | 15 | 2026-06-06 |
| ETH609 | Ethiopian Airlines | 11 | 2026-05-27 |
| ETH608 | Ethiopian Airlines | 9 | 2026-05-27 |
| ETH552 | - | 9 | 2026-07-11 |
| ETH731 | Ethiopian Airlines | 8 | 2026-06-30 |
| ETH730 | - | 8 | 2026-06-30 |
| ETH638 | Ethiopian Airlines | 8 | 2026-05-08 |
| ETH740 | - | 7 | 2026-07-06 |
| ETH639 | Ethiopian Airlines | 7 | 2026-05-08 |
| ETH741 | Ethiopian Airlines | 6 | 2026-07-06 |
| ETH726 | - | 6 | 2026-07-02 |
| ETH713 | Ethiopian Airlines | 6 | 2026-06-27 |
| ETH553 | - | 6 | 2026-07-11 |
| ETH727 | Ethiopian Airlines | 5 | 2026-07-02 |
| ETH724 | - | 5 | 2026-07-04 |
| ETH518 | - | 5 | 2026-07-13 |
| ETH846 | - | 4 | 2026-07-07 |
| ETH725 | - | 4 | 2026-07-04 |
| ETH716 | - | 4 | 2026-06-27 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | ETH519 | - | Jul 13, 16:10 UTC | Jul 14, 01:40 UTC | 9h 30m |
| 2026-07-13 | ETH519 | - | Jul 13, 14:45 UTC | Jul 13, 16:05 UTC | 1h 20m |
| 2026-07-13 | ETH518 | FCO → ATL | Jul 13, 02:50 UTC | Jul 13, 12:25 UTC | 9h 35m |
| 2026-07-12 | ETH518 | - | Jul 12, 22:25 UTC | Jul 13, 01:25 UTC | 3h 0m |
| 2026-07-12 | ETH518 | - | Jul 12, 00:05 UTC | Jul 13, 00:01 UTC | 23h 55m |
| 2026-07-11 | ETH553 | - | Jul 11, 15:35 UTC | Jul 12, 01:30 UTC | 9h 55m |
| 2026-07-11 | ETH552 | - | Jul 11, 04:50 UTC | Jul 11, 13:15 UTC | 8h 25m |
| 2026-07-11 | ETH552 | - | Jul 11, 01:15 UTC | Jul 11, 03:25 UTC | 2h 10m |
| 2026-07-08 | ETH908 | - | Jul 8, 08:20 UTC | Jul 8, 08:55 UTC | 35m |
| 2026-07-08 | ETH907 | - | Jul 8, 05:15 UTC | Jul 8, 05:55 UTC | 40m |
| 2026-07-07 | ETH846 | - | Jul 7, 13:15 UTC | Jul 7, 13:25 UTC | 10m |
| 2026-07-06 | ETH741 | MAD → ADD | Jul 6, 21:55 UTC | Jul 7, 12:00 UTC | 14h 5m |
| 2026-07-06 | ETH741 | MAD → ADD | Jul 6, 19:10 UTC | Jul 6, 20:00 UTC | 50m |
| 2026-07-06 | ETH740 | MAD → OPO | Jul 6, 06:45 UTC | Jul 6, 07:35 UTC | 50m |
| 2026-07-05 | ETH740 | - | Jul 5, 13:45 UTC | Jul 6, 04:40 UTC | 14h 55m |
| 2026-07-04 | ETH725 | - | Jul 4, 20:25 UTC | Jul 5, 13:55 UTC | 17h 30m |
| 2026-07-04 | ETH725 | - | Jul 4, 17:35 UTC | Jul 4, 18:50 UTC | 1h 15m |
| 2026-07-04 | ETH724 | VIE → CPH | Jul 4, 05:30 UTC | Jul 4, 06:50 UTC | 1h 20m |
| 2026-07-03 | ETH724 | - | Jul 3, 15:05 UTC | Jul 4, 03:55 UTC | 12h 50m |
| 2026-07-03 | ETH846 | - | Jul 3, 13:55 UTC | Jul 3, 14:05 UTC | 10m |
| 2026-07-02 | ETH727 | FCO → ADD | Jul 2, 21:20 UTC | Jul 3, 12:30 UTC | 15h 10m |
| 2026-07-02 | ETH727 | FCO → ADD | Jul 2, 17:50 UTC | Jul 2, 19:30 UTC | 1h 40m |
| 2026-07-02 | ETH726 | - | Jul 2, 05:55 UTC | Jul 2, 07:40 UTC | 1h 45m |
| 2026-07-02 | ETH726 | - | Jul 2, 00:45 UTC | Jul 2, 03:50 UTC | 3h 5m |
| 2026-06-30 | ETH731 | DUB → ADD | Jun 30, 20:25 UTC | Jun 30, 23:05 UTC | 2h 40m |
| 2026-06-30 | ETH731 | DUB → ADD | Jun 30, 18:10 UTC | Jun 30, 19:00 UTC | 50m |
| 2026-06-30 | ETH730 | VIE → WAW | Jun 30, 05:00 UTC | Jun 30, 05:55 UTC | 55m |
| 2026-06-29 | ETH730 | CPT → VIE | Jun 29, 13:44 UTC | Jun 30, 03:40 UTC | 13h 56m |
| 2026-06-28 | ETH847 | - | Jun 28, 21:14 UTC | Jun 29, 12:14 UTC | 15h 0m |
| 2026-06-28 | ETH849 | - | Jun 28, 09:15 UTC | Jun 28, 18:19 UTC | 9h 5m |
| 2026-06-27 | ETH713 | FCO → ADD | Jun 27, 22:04 UTC | Jun 28, 18:19 UTC | 20h 15m |
| 2026-06-27 | ETH713 | FCO → ADD | Jun 27, 21:25 UTC | Jun 28, 18:19 UTC | 20h 55m |
| 2026-06-27 | ETH716 | - | Jun 27, 07:19 UTC | Jun 27, 19:00 UTC | 11h 40m |
| 2026-06-26 | ETH729 | GVA → FCO | Jun 26, 20:55 UTC | Jun 27, 19:00 UTC | 22h 5m |
| 2026-06-26 | ETH729 | MAN → GVA | Jun 26, 17:50 UTC | Jun 26, 19:30 UTC | 1h 40m |
| 2026-06-26 | ETH728 | GVA → MAN | Jun 26, 05:44 UTC | Jun 26, 07:05 UTC | 1h 20m |
| 2026-06-25 | ETH728 | CPT → GVA | Jun 25, 13:29 UTC | Jun 26, 04:14 UTC | 14h 45m |
| 2026-06-24 | ETH737 | MXP → ADD | Jun 24, 21:44 UTC | Jun 25, 11:54 UTC | 14h 10m |
| 2026-06-24 | ETH737 | MXP → ADD | Jun 24, 19:10 UTC | Jun 24, 19:44 UTC | 35m |
| 2026-06-24 | ETH736 | - | Jun 24, 08:14 UTC | Jun 24, 08:49 UTC | 35m |
| 2026-06-24 | ETH736 | - | Jun 24, 03:40 UTC | Jun 24, 06:35 UTC | 2h 55m |
| 2026-06-22 | ETH640 | - | Jun 22, 19:40 UTC | Jun 22, 20:30 UTC | 50m |
| 2026-06-20 | ETH727 | FCO → ADD | Jun 20, 21:14 UTC | Jun 21, 00:40 UTC | 3h 25m |
| 2026-06-20 | ETH726 | - | Jun 20, 05:44 UTC | Jun 20, 07:24 UTC | 1h 40m |
| 2026-06-19 | ETH726 | - | Jun 19, 07:19 UTC | Jun 20, 03:49 UTC | 20h 30m |
| 2026-06-18 | ETH727 | FCO → ADD | Jun 18, 21:10 UTC | Jun 19, 13:54 UTC | 16h 44m |
| 2026-06-18 | ETH727 | FCO → ADD | Jun 18, 17:50 UTC | Jun 18, 19:40 UTC | 1h 50m |
| 2026-06-18 | ETH726 | - | Jun 18, 05:15 UTC | Jun 18, 06:55 UTC | 1h 40m |
| 2026-06-18 | ETH726 | - | Jun 18, 00:35 UTC | Jun 18, 03:40 UTC | 3h 5m |
| 2026-06-17 | ETH603 | DXB → ADD | Jun 17, 13:30 UTC | Jun 17, 13:50 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-AXL page for operator, model, and routing details .