sensors Mode-S transponder
040045
ICAO 24-bit transponder address · allocated to Ethiopia
Currently assigned to ET-AOO · BOEING 787-8 Dreamliner
- Hex
- 040045
- Octal
- 01000105
- Decimal
- 262,213
- Country
- ET
- Tail
- ET-AOO
- Type
- B788
- Flights observed
- 146
- Distinct callsigns
- 20
- Country
- ET
- Last broadcast
- 26m ago
Last known position
Country allocation
The ICAO 24-bit address 040045 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 |
|---|---|---|---|
| ETH574 | - | 12 | 2026-06-28 |
| ETH714 | Ethiopian Airlines | 10 | 2026-05-25 |
| ETH575 | Ethiopian Airlines | 9 | 2026-06-28 |
| ETH715 | Ethiopian Airlines | 8 | 2026-05-25 |
| ETH519 | - | 7 | 2026-06-26 |
| ETH518 | - | 7 | 2026-06-26 |
| ETH514 | Ethiopian Airlines | 7 | 2026-07-07 |
| ETH718 | Ethiopian Airlines | 6 | 2026-04-16 |
| ETH726 | Ethiopian Airlines | 5 | 2026-06-04 |
| ETH719 | Ethiopian Airlines | 5 | 2026-04-16 |
| ETH515 | - | 5 | 2026-07-08 |
| ETH907 | Ethiopian Airlines | 4 | 2026-05-27 |
| ETH727 | Ethiopian Airlines | 4 | 2026-06-04 |
| ETH725 | - | 4 | 2026-07-01 |
| ETH724 | - | 4 | 2026-07-01 |
| ETH516 | - | 4 | 2026-07-11 |
| ETH512 | - | 4 | 2026-07-13 |
| ETH736 | - | 3 | 2026-07-09 |
| ETH681 | - | 3 | 2026-05-31 |
| ETH680 | - | 3 | 2026-05-02 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | ETH513 | - | Jul 14, 02:25 UTC | Jul 14, 03:00 UTC | 35m |
| 2026-07-13 | ETH512 | - | Jul 13, 15:20 UTC | Jul 13, 23:15 UTC | 7h 55m |
| 2026-07-12 | ETH517 | - | Jul 12, 02:10 UTC | Jul 12, 02:55 UTC | 45m |
| 2026-07-11 | ETH516 | - | Jul 11, 15:00 UTC | Jul 11, 23:55 UTC | 8h 55m |
| 2026-07-10 | ETH516 | - | Jul 10, 23:20 UTC | Jul 11, 23:15 UTC | 23h 55m |
| 2026-07-10 | ETH516 | - | Jul 10, 22:50 UTC | Jul 11, 15:45 UTC | 16h 55m |
| 2026-07-10 | ETH688 | - | Jul 10, 18:45 UTC | Jul 10, 21:25 UTC | 2h 40m |
| 2026-07-09 | ETH688 | - | Jul 9, 23:20 UTC | Jul 10, 21:25 UTC | 22h 5m |
| 2026-07-09 | ETH737 | - | Jul 9, 21:50 UTC | Jul 10, 18:50 UTC | 21h 0m |
| 2026-07-09 | ETH737 | ZRH → MXP | Jul 9, 19:30 UTC | Jul 9, 20:00 UTC | 30m |
| 2026-07-09 | ETH736 | MXP → ZRH | Jul 9, 05:40 UTC | Jul 9, 06:15 UTC | 35m |
| 2026-07-08 | ETH736 | - | Jul 8, 09:20 UTC | Jul 9, 04:20 UTC | 19h 0m |
| 2026-07-08 | ETH736 | - | Jul 8, 08:25 UTC | Jul 9, 04:20 UTC | 19h 55m |
| 2026-07-08 | ETH515 | - | Jul 8, 02:05 UTC | Jul 8, 14:35 UTC | 12h 30m |
| 2026-07-07 | ETH514 | LFW → JFK | Jul 7, 15:05 UTC | Jul 7, 23:20 UTC | 8h 15m |
| 2026-07-06 | ETH514 | LFW → JFK | Jul 6, 21:20 UTC | Jul 7, 16:00 UTC | 18h 40m |
| 2026-07-06 | ETH514 | LFW → JFK | Jul 6, 21:05 UTC | Jul 7, 16:00 UTC | 18h 55m |
| 2026-07-06 | ETH717 | - | Jul 6, 05:40 UTC | Jul 6, 18:15 UTC | 12h 35m |
| 2026-07-05 | ETH712 | - | Jul 5, 14:30 UTC | Jul 6, 03:10 UTC | 12h 40m |
| 2026-07-05 | ETH8507 | COR → JNB | Jul 5, 02:00 UTC | Jul 5, 12:30 UTC | 10h 30m |
| 2026-07-04 | ETH8506 | - | Jul 4, 23:00 UTC | Jul 5, 00:05 UTC | 1h 5m |
| 2026-07-04 | ETH8505 | - | Jul 4, 10:10 UTC | Jul 4, 21:20 UTC | 11h 10m |
| 2026-07-03 | ETH908 | - | Jul 3, 08:25 UTC | Jul 3, 08:55 UTC | 30m |
| 2026-07-02 | ETH844 | CPT → DSS | Jul 2, 12:25 UTC | Jul 3, 06:20 UTC | 17h 55m |
| 2026-07-01 | ETH725 | VIE → CPT | Jul 1, 20:20 UTC | Jul 2, 11:05 UTC | 14h 45m |
| 2026-07-01 | ETH725 | CPH → VIE | Jul 1, 17:45 UTC | Jul 1, 19:05 UTC | 1h 20m |
| 2026-07-01 | ETH724 | VIE → CPH | Jul 1, 05:25 UTC | Jul 1, 06:40 UTC | 1h 15m |
| 2026-07-01 | ETH724 | - | Jul 1, 00:40 UTC | Jul 1, 03:35 UTC | 2h 55m |
| 2026-06-28 | ETH575 | ORD → ADD | Jun 28, 15:29 UTC | Jun 29, 01:05 UTC | 9h 35m |
| 2026-06-28 | ETH574 | - | Jun 28, 03:40 UTC | Jun 28, 12:55 UTC | 9h 15m |
| 2026-06-27 | ETH574 | - | Jun 27, 23:00 UTC | Jun 28, 01:40 UTC | 2h 40m |
| 2026-06-27 | ETH574 | - | Jun 27, 01:19 UTC | Jun 28, 01:15 UTC | 23h 55m |
| 2026-06-26 | ETH519 | - | Jun 26, 23:19 UTC | Jun 27, 23:04 UTC | 23h 45m |
| 2026-06-26 | ETH519 | - | Jun 26, 15:05 UTC | Jun 27, 01:24 UTC | 10h 20m |
| 2026-06-26 | ETH518 | FCO → ATL | Jun 26, 03:00 UTC | Jun 26, 12:59 UTC | 10h 0m |
| 2026-06-25 | ETH518 | - | Jun 25, 22:34 UTC | Jun 26, 01:20 UTC | 2h 45m |
| 2026-06-24 | ETH519 | - | Jun 24, 23:20 UTC | Jun 25, 23:05 UTC | 23h 45m |
| 2026-06-24 | ETH519 | - | Jun 24, 16:24 UTC | Jun 25, 02:10 UTC | 9h 45m |
| 2026-06-24 | ETH519 | - | Jun 24, 15:05 UTC | Jun 24, 16:19 UTC | 1h 15m |
| 2026-06-24 | ETH518 | FCO → ATL | Jun 24, 02:54 UTC | Jun 24, 12:54 UTC | 10h 0m |
| 2026-06-23 | ETH518 | - | Jun 23, 15:50 UTC | Jun 24, 01:09 UTC | 9h 20m |
| 2026-06-23 | ETH518 | - | Jun 23, 01:35 UTC | Jun 24, 01:09 UTC | 23h 35m |
| 2026-06-22 | ETH519 | - | Jun 22, 21:19 UTC | Jun 23, 15:50 UTC | 18h 30m |
| 2026-06-22 | ETH519 | - | Jun 22, 14:55 UTC | Jun 23, 01:59 UTC | 11h 5m |
| 2026-06-22 | ETH518 | - | Jun 22, 02:54 UTC | Jun 22, 12:54 UTC | 10h 0m |
| 2026-06-21 | ETH518 | - | Jun 21, 06:55 UTC | Jun 22, 01:15 UTC | 18h 20m |
| 2026-06-20 | ETH8404 | - | Jun 20, 13:59 UTC | Jun 21, 04:49 UTC | 14h 50m |
| 2026-06-10 | ETH729 | MAN → BRU | Jun 10, 20:40 UTC | Jun 10, 23:00 UTC | 2h 20m |
| 2026-06-10 | ETH729 | MAN → BRU | Jun 10, 17:50 UTC | Jun 10, 19:15 UTC | 1h 25m |
| 2026-06-10 | ETH728 | GVA → MAN | Jun 10, 05:35 UTC | Jun 10, 07:00 UTC | 1h 25m |
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-AOO page for operator, model, and routing details .