sensors Mode-S transponder
040127
ICAO 24-bit transponder address · allocated to Ethiopia
Currently assigned to ET-ATK · BOEING 787-8 Dreamliner
- Hex
- 040127
- Octal
- 01000447
- Decimal
- 262,439
- Country
- ET
- Tail
- ET-ATK
- Type
- B788
- Flights observed
- 77
- Distinct callsigns
- 20
- Country
- ET
- Last broadcast
- 3h ago
Last known position
Country allocation
The ICAO 24-bit address 040127 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 | 13 | 2026-05-11 |
| ETH715 | Ethiopian Airlines | 12 | 2026-05-11 |
| ETH858 | Ethiopian Airlines | 4 | 2026-05-22 |
| ETH737 | Ethiopian Airlines | 4 | 2026-05-24 |
| ETH736 | Ethiopian Airlines | 4 | 2026-05-24 |
| ETH849 | Ethiopian Airlines | 3 | 2026-04-30 |
| ETH718 | Ethiopian Airlines | 3 | 2026-05-14 |
| ETH712 | Ethiopian Airlines | 3 | 2026-04-21 |
| ETH909 | Ethiopian Airlines | 2 | 2026-05-12 |
| ETH738 | Ethiopian Airlines | 2 | 2026-05-30 |
| ETH729 | Ethiopian Airlines | 2 | 2026-05-27 |
| ETH728 | Ethiopian Airlines | 2 | 2026-05-27 |
| ETH725 | Ethiopian Airlines | 2 | 2026-05-06 |
| ETH724 | Ethiopian Airlines | 2 | 2026-05-06 |
| ETH719 | Ethiopian Airlines | 2 | 2026-05-14 |
| ETH713 | Ethiopian Airlines | 2 | 2026-04-22 |
| ETH681 | - | 2 | 2026-05-17 |
| ETH680 | - | 2 | 2026-05-17 |
| ETH517 | Ethiopian Airlines | 2 | 2026-05-26 |
| ETH516 | Ethiopian Airlines | 2 | 2026-05-25 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | ETH738 | ADD → GVA | May 30, 01:40 UTC | May 30, 04:30 UTC | 2h 50m |
| 2026-05-27 | ETH729 | MAN → BRU | May 27, 20:30 UTC | May 27, 22:55 UTC | 2h 25m |
| 2026-05-27 | ETH729 | MAN → BRU | May 27, 17:55 UTC | May 27, 19:20 UTC | 1h 25m |
| 2026-05-27 | ETH728 | GVA → MAN | May 27, 05:45 UTC | May 27, 07:20 UTC | 1h 36m |
| 2026-05-27 | ETH728 | GVA → MAN | May 27, 01:44 UTC | May 27, 04:19 UTC | 2h 35m |
| 2026-05-26 | ETH517 | LFW → ADD | May 26, 02:10 UTC | May 27, 01:44 UTC | 23h 35m |
| 2026-05-25 | ETH516 | LFW → IAD | May 25, 16:45 UTC | May 25, 23:45 UTC | 7h 0m |
| 2026-05-24 | ETH737 | MXP → ADD | May 24, 23:00 UTC | May 25, 17:15 UTC | 18h 15m |
| 2026-05-24 | ETH737 | MXP → ADD | May 24, 19:05 UTC | May 24, 19:35 UTC | 30m |
| 2026-05-24 | ETH736 | MXP → ZRH | May 24, 05:35 UTC | May 24, 06:15 UTC | 40m |
| 2026-05-24 | ETH736 | MXP → ZRH | May 24, 01:10 UTC | May 24, 04:15 UTC | 3h 5m |
| 2026-05-22 | ETH858 | JNB → ADD | May 22, 21:10 UTC | May 23, 00:40 UTC | 3h 30m |
| 2026-05-22 | ETH689 | DEL → ADD | May 22, 04:35 UTC | May 22, 18:10 UTC | 13h 35m |
| 2026-05-21 | ETH686 | ADD → DEL | May 21, 13:35 UTC | May 22, 02:15 UTC | 12h 40m |
| 2026-05-21 | ETH913 | ADD → ADD | May 21, 09:55 UTC | May 21, 10:05 UTC | 10m |
| 2026-05-19 | ETH737 | MXP → ADD | May 19, 22:00 UTC | May 20, 00:05 UTC | 2h 5m |
| 2026-05-19 | ETH737 | MXP → ADD | May 19, 19:05 UTC | May 19, 19:40 UTC | 35m |
| 2026-05-19 | ETH736 | MXP → ZRH | May 19, 05:45 UTC | May 19, 06:25 UTC | 40m |
| 2026-05-19 | ETH736 | MXP → ZRH | May 19, 00:55 UTC | May 19, 04:30 UTC | 3h 35m |
| 2026-05-17 | ETH681 | - | May 17, 08:30 UTC | May 17, 11:15 UTC | 2h 45m |
| 2026-05-17 | ETH680 | - | May 17, 00:40 UTC | May 17, 03:25 UTC | 2h 45m |
| 2026-05-15 | ETH601 | DXB → ADD | May 15, 00:50 UTC | May 15, 01:10 UTC | 20m |
| 2026-05-14 | ETH719 | LGW → ADD | May 14, 09:35 UTC | May 14, 12:35 UTC | 3h 0m |
| 2026-05-14 | ETH718 | ADD → LGW | May 14, 02:05 UTC | May 14, 05:45 UTC | 3h 40m |
| 2026-05-12 | ETH909 | ADD → BKO | May 12, 21:01 UTC | May 12, 21:35 UTC | 35m |
| 2026-05-12 | ETH909 | ADD → BKO | May 12, 18:05 UTC | May 12, 18:45 UTC | 40m |
| 2026-05-11 | ETH715 | ARN → ADD | May 11, 21:50 UTC | May 12, 18:45 UTC | 20h 55m |
| 2026-05-11 | ETH715 | ARN → ADD | May 11, 20:00 UTC | May 12, 18:45 UTC | 22h 45m |
| 2026-05-11 | ETH715 | ARN → ADD | May 11, 17:55 UTC | May 11, 18:40 UTC | 45m |
| 2026-05-11 | ETH714 | ADD → ARN | May 11, 05:45 UTC | May 11, 06:30 UTC | 45m |
| 2026-05-10 | ETH714 | ADD → ARN | May 10, 09:50 UTC | May 11, 04:10 UTC | 18h 20m |
| 2026-05-10 | ETH714 | ADD → ARN | May 10, 09:24 UTC | May 11, 04:10 UTC | 18h 45m |
| 2026-05-09 | ETH718 | ADD → LGW | May 9, 14:00 UTC | May 10, 05:14 UTC | 15h 15m |
| 2026-05-08 | ETH715 | ARN → ADD | May 8, 20:20 UTC | May 9, 10:45 UTC | 14h 25m |
| 2026-05-08 | ETH715 | ARN → ADD | May 8, 18:05 UTC | May 8, 18:50 UTC | 45m |
| 2026-05-08 | ETH714 | ADD → ARN | May 8, 06:20 UTC | May 8, 07:04 UTC | 45m |
| 2026-05-08 | ETH714 | ADD → ARN | May 8, 00:54 UTC | May 8, 04:44 UTC | 3h 50m |
| 2026-05-07 | ETH714 | ADD → ARN | May 7, 07:10 UTC | May 8, 04:44 UTC | 21h 35m |
| 2026-05-06 | ETH725 | VIE → ADD | May 6, 20:15 UTC | May 7, 07:15 UTC | 11h 0m |
| 2026-05-06 | ETH725 | VIE → ADD | May 6, 17:40 UTC | May 6, 18:55 UTC | 1h 15m |
| 2026-05-06 | ETH724 | VIE → BRU | May 6, 05:30 UTC | May 6, 06:45 UTC | 1h 15m |
| 2026-05-06 | ETH724 | VIE → BRU | May 6, 01:35 UTC | May 6, 04:10 UTC | 2h 35m |
| 2026-05-04 | ETH715 | ARN → ADD | May 4, 20:15 UTC | May 5, 10:30 UTC | 14h 15m |
| 2026-05-04 | ETH715 | ARN → ADD | May 4, 17:50 UTC | May 4, 18:30 UTC | 40m |
| 2026-05-04 | ETH714 | ADD → ARN | May 4, 06:55 UTC | May 4, 07:40 UTC | 45m |
| 2026-05-04 | ETH714 | ADD → ARN | May 4, 01:05 UTC | May 4, 05:25 UTC | 4h 20m |
| 2026-05-02 | ETH739 | GVA → ADD | May 2, 20:15 UTC | May 2, 22:35 UTC | 2h 20m |
| 2026-05-02 | ETH738 | ADD → GVA | May 2, 01:25 UTC | May 2, 04:10 UTC | 2h 45m |
| 2026-04-30 | ETH858 | JNB → ADD | Apr 30, 21:00 UTC | Apr 30, 21:20 UTC | 20m |
| 2026-04-30 | ETH849 | ADD → JNB | Apr 30, 06:40 UTC | Apr 30, 18:15 UTC | 11h 35m |
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-ATK page for operator, model, and routing details .