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
- 81
- Distinct callsigns
- 20
- Country
- ET
- Last broadcast
- 1h 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 |
|---|---|---|---|
| ETH714 | Ethiopian Airlines | 10 | 2026-05-25 |
| ETH574 | Ethiopian Airlines | 9 | 2026-05-13 |
| ETH715 | Ethiopian Airlines | 8 | 2026-05-25 |
| ETH575 | Ethiopian Airlines | 8 | 2026-05-13 |
| ETH718 | Ethiopian Airlines | 6 | 2026-04-16 |
| ETH719 | Ethiopian Airlines | 5 | 2026-04-16 |
| ETH907 | Ethiopian Airlines | 4 | 2026-05-27 |
| ETH514 | Ethiopian Airlines | 4 | 2026-05-29 |
| ETH726 | Ethiopian Airlines | 3 | 2026-05-28 |
| ETH680 | - | 3 | 2026-05-02 |
| ETH639 | Ethiopian Airlines | 3 | 2026-04-18 |
| ETH638 | Ethiopian Airlines | 3 | 2026-04-18 |
| ETH727 | Ethiopian Airlines | 2 | 2026-05-28 |
| ETH681 | - | 2 | 2026-04-17 |
| ETH515 | Ethiopian Airlines | 2 | 2026-05-02 |
| ETH909 | Ethiopian Airlines | 1 | 2026-05-08 |
| ETH908 | Ethiopian Airlines | 1 | 2026-04-24 |
| ETH858 | Ethiopian Airlines | 1 | 2026-04-14 |
| ETH849 | - | 1 | 2026-04-14 |
| ETH517 | Ethiopian Airlines | 1 | 2026-04-26 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | ETH514 | LFW → JFK | May 29, 15:10 UTC | May 29, 23:50 UTC | 8h 40m |
| 2026-05-28 | ETH514 | LFW → JFK | May 28, 23:20 UTC | May 29, 23:15 UTC | 23h 55m |
| 2026-05-28 | ETH727 | FCO → ADD | May 28, 22:00 UTC | May 29, 16:05 UTC | 18h 5m |
| 2026-05-28 | ETH727 | FCO → ADD | May 28, 18:20 UTC | May 28, 20:15 UTC | 1h 55m |
| 2026-05-28 | ETH726 | MRS → MAN | May 28, 05:40 UTC | May 28, 07:25 UTC | 1h 45m |
| 2026-05-28 | ETH726 | MRS → MAN | May 28, 01:15 UTC | May 28, 03:55 UTC | 2h 40m |
| 2026-05-27 | ETH726 | MRS → MAN | May 27, 08:00 UTC | May 28, 03:55 UTC | 19h 55m |
| 2026-05-27 | ETH907 | BKO → DSS | May 27, 05:04 UTC | May 27, 05:49 UTC | 45m |
| 2026-05-25 | ETH715 | ARN → ADD | May 25, 20:15 UTC | May 26, 00:14 UTC | 4h 0m |
| 2026-05-25 | ETH715 | ARN → ADD | May 25, 18:00 UTC | May 25, 18:40 UTC | 40m |
| 2026-05-25 | ETH714 | ADD → ARN | May 25, 06:15 UTC | May 25, 07:00 UTC | 45m |
| 2026-05-24 | ETH714 | ADD → ARN | May 24, 15:05 UTC | May 25, 04:55 UTC | 13h 50m |
| 2026-05-24 | ETH513 | JFK → ABJ | May 24, 03:25 UTC | May 24, 10:30 UTC | 7h 5m |
| 2026-05-23 | ETH512 | LFW → JFK | May 23, 15:50 UTC | May 24, 00:10 UTC | 8h 21m |
| 2026-05-22 | ETH715 | ARN → ADD | May 22, 20:20 UTC | May 23, 00:25 UTC | 4h 5m |
| 2026-05-22 | ETH715 | ARN → ADD | May 22, 18:00 UTC | May 22, 18:40 UTC | 40m |
| 2026-05-22 | ETH714 | ADD → ARN | May 22, 05:50 UTC | May 22, 06:35 UTC | 45m |
| 2026-05-22 | ETH714 | ADD → ARN | May 22, 00:00 UTC | May 22, 04:20 UTC | 4h 20m |
| 2026-05-20 | ETH308 | ADD → NBO | May 20, 22:25 UTC | May 20, 22:35 UTC | 10m |
| 2026-05-13 | ETH575 | ORD → ADD | May 13, 15:45 UTC | May 14, 01:20 UTC | 9h 35m |
| 2026-05-13 | ETH574 | DUB → ORD | May 13, 04:15 UTC | May 13, 13:35 UTC | 9h 20m |
| 2026-05-12 | ETH574 | DUB → ORD | May 12, 14:00 UTC | May 13, 02:15 UTC | 12h 15m |
| 2026-05-10 | ETH575 | ORD → ADD | May 10, 22:05 UTC | May 11, 01:50 UTC | 3h 45m |
| 2026-05-10 | ETH575 | ORD → ADD | May 10, 15:39 UTC | May 10, 17:49 UTC | 2h 10m |
| 2026-05-10 | ETH574 | DUB → ORD | May 10, 10:40 UTC | May 10, 12:49 UTC | 2h 10m |
| 2026-05-10 | ETH574 | DUB → ORD | May 10, 03:20 UTC | May 10, 10:00 UTC | 6h 40m |
| 2026-05-09 | ETH574 | DUB → ORD | May 9, 23:35 UTC | May 10, 01:45 UTC | 2h 10m |
| 2026-05-08 | ETH909 | ADD → BKO | May 8, 21:10 UTC | May 8, 21:30 UTC | 20m |
| 2026-05-08 | ETH575 | ORD → ADD | May 8, 01:19 UTC | May 8, 19:20 UTC | 18h 0m |
| 2026-05-08 | ETH575 | ORD → ADD | May 8, 00:34 UTC | May 8, 19:20 UTC | 18h 45m |
| 2026-05-07 | ETH575 | ORD → ADD | May 7, 19:20 UTC | May 8, 19:15 UTC | 23h 55m |
| 2026-05-07 | ETH575 | ORD → ADD | May 7, 18:45 UTC | May 8, 04:14 UTC | 9h 30m |
| 2026-05-07 | ETH574 | DUB → ORD | May 7, 06:10 UTC | May 7, 15:30 UTC | 9h 21m |
| 2026-05-07 | ETH574 | DUB → ORD | May 7, 02:10 UTC | May 7, 04:20 UTC | 2h 10m |
| 2026-05-04 | ETH575 | ORD → ADD | May 4, 15:55 UTC | May 5, 01:45 UTC | 9h 51m |
| 2026-05-04 | ETH574 | DUB → ORD | May 4, 04:34 UTC | May 4, 13:50 UTC | 9h 15m |
| 2026-05-03 | ETH574 | DUB → ORD | May 3, 08:45 UTC | May 4, 03:00 UTC | 18h 15m |
| 2026-05-02 | ETH680 | - | May 2, 15:55 UTC | May 3, 03:45 UTC | 11h 49m |
| 2026-05-02 | ETH680 | - | May 2, 07:55 UTC | May 3, 03:45 UTC | 19h 49m |
| 2026-05-02 | ETH515 | LFW → ADD | May 2, 02:05 UTC | May 3, 01:15 UTC | 23h 10m |
| 2026-05-01 | ETH514 | LFW → JFK | May 1, 15:15 UTC | May 2, 00:05 UTC | 8h 50m |
| 2026-04-28 | ETH715 | ARN → ADD | Apr 28, 19:55 UTC | Apr 28, 23:29 UTC | 3h 35m |
| 2026-04-28 | ETH715 | ARN → ADD | Apr 28, 17:55 UTC | Apr 28, 18:35 UTC | 40m |
| 2026-04-28 | ETH714 | ADD → ARN | Apr 28, 06:05 UTC | Apr 28, 06:50 UTC | 45m |
| 2026-04-27 | ETH714 | ADD → ARN | Apr 27, 10:20 UTC | Apr 28, 05:00 UTC | 18h 40m |
| 2026-04-26 | ETH907 | BKO → DSS | Apr 26, 14:40 UTC | Apr 27, 08:45 UTC | 18h 5m |
| 2026-04-26 | ETH907 | BKO → DSS | Apr 26, 09:20 UTC | Apr 27, 08:45 UTC | 23h 25m |
| 2026-04-26 | ETH517 | LFW → ADD | Apr 26, 02:20 UTC | Apr 26, 14:50 UTC | 12h 30m |
| 2026-04-25 | ETH516 | LFW → IAD | Apr 25, 22:55 UTC | Apr 26, 00:30 UTC | 1h 35m |
| 2026-04-24 | ETH908 | BKO → ADD | Apr 24, 08:20 UTC | Apr 24, 08:50 UTC | 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-AOO page for operator, model, and routing details .