sensors Mode-S transponder
04008D
ICAO 24-bit transponder address · allocated to Ethiopia
Currently assigned to ET-ARK · BOEING 777-200LR
- Hex
- 04008D
- Octal
- 01000215
- Decimal
- 262,285
- Country
- ET
- Tail
- ET-ARK
- Type
- B77L
- Flights observed
- 225
- Distinct callsigns
- 20
- Country
- ET
- Last broadcast
- Jul 26, 14:55 UTC
Current position
Country allocation
The ICAO 24-bit address 04008D 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 |
|---|---|---|---|
| ETH3739 | Ethiopian Airlines | 13 | 2026-06-03 |
| ETH3714 | Ethiopian Airlines | 10 | 2026-06-11 |
| ETH3640 | - | 9 | 2026-07-06 |
| ETH3785 | - | 8 | 2026-06-19 |
| ETH3712 | - | 8 | 2026-06-17 |
| ETH3750 | Ethiopian Airlines | 7 | 2026-06-08 |
| ETH3690 | - | 7 | 2026-07-23 |
| ETH3685 | - | 7 | 2026-07-06 |
| ETH3656 | Ethiopian Airlines | 7 | 2026-07-20 |
| ETH3751 | Ethiopian Airlines | 6 | 2026-06-09 |
| ETH3738 | Ethiopian Airlines | 6 | 2026-06-02 |
| ETH3604 | Ethiopian Airlines | 6 | 2026-07-04 |
| ETH3784 | - | 5 | 2026-06-21 |
| ETH3720 | Ethiopian Airlines | 5 | 2026-06-08 |
| ETH3718 | Ethiopian Airlines | 5 | 2026-05-05 |
| ETH3704 | Ethiopian Airlines | 5 | 2026-06-05 |
| ETH3702 | - | 5 | 2026-07-03 |
| ETH3618 | - | 5 | 2026-07-06 |
| ETH3792 | Ethiopian Airlines | 4 | 2026-07-25 |
| ETH3707 | Ethiopian Airlines | 4 | 2026-06-27 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | ETH3619 | BKK → ADD | Jul 26, 11:55 UTC | Jul 26, 14:55 UTC | 3h 0m |
| 2026-07-26 | ETH3619 | BKK → ADD | Jul 26, 09:50 UTC | Jul 26, 10:20 UTC | 30m |
| 2026-07-25 | ETH3792 | LGG → LGG | Jul 25, 20:40 UTC | Jul 26, 05:35 UTC | 8h 55m |
| 2026-07-25 | ETH3792 | LGG → LGG | Jul 25, 17:15 UTC | Jul 25, 18:45 UTC | 1h 30m |
| 2026-07-24 | ETH3400 | MST → ADD | Jul 24, 23:25 UTC | Jul 25, 15:30 UTC | 16h 5m |
| 2026-07-24 | ETH3788 | LGG → PVG | Jul 24, 03:55 UTC | Jul 24, 22:10 UTC | 18h 15m |
| 2026-07-23 | ETH3788 | LGG → PVG | Jul 23, 14:10 UTC | Jul 24, 07:45 UTC | 17h 35m |
| 2026-07-23 | ETH3690 | - | Jul 23, 05:30 UTC | Jul 24, 04:30 UTC | 23h 0m |
| 2026-07-22 | ETH3690 | - | Jul 22, 23:05 UTC | Jul 23, 17:25 UTC | 18h 20m |
| 2026-07-21 | ETH3657 | ADD → LGG | Jul 21, 07:05 UTC | Jul 21, 09:05 UTC | 2h 0m |
| 2026-07-20 | ETH3656 | LGG → LGG | Jul 20, 04:10 UTC | Jul 20, 21:50 UTC | 17h 40m |
| 2026-07-20 | ETH3656 | LGG → LGG | Jul 20, 01:30 UTC | Jul 20, 21:50 UTC | 20h 20m |
| 2026-07-19 | ETH3690 | - | Jul 19, 15:10 UTC | Jul 20, 04:30 UTC | 13h 20m |
| 2026-07-18 | ETH3690 | - | Jul 18, 19:20 UTC | Jul 19, 18:50 UTC | 23h 30m |
| 2026-07-18 | ETH3653 | - | Jul 18, 17:30 UTC | Jul 19, 17:15 UTC | 23h 45m |
| 2026-07-18 | ETH3807 | - | Jul 18, 12:20 UTC | Jul 18, 14:45 UTC | 2h 25m |
| 2026-07-18 | ETH3807 | - | Jul 18, 08:25 UTC | Jul 18, 10:10 UTC | 1h 45m |
| 2026-07-17 | ETH3807 | - | Jul 17, 14:04 UTC | Jul 18, 10:10 UTC | 20h 6m |
| 2026-07-17 | ETH3491 | - | Jul 17, 11:25 UTC | Jul 18, 10:10 UTC | 22h 46m |
| 2026-07-16 | ETH3490 | - | Jul 16, 20:19 UTC | Jul 17, 14:35 UTC | 18h 15m |
| 2026-07-16 | ETH3490 | - | Jul 16, 09:20 UTC | Jul 17, 00:10 UTC | 14h 50m |
| 2026-07-15 | ETH3857 | - | Jul 15, 14:50 UTC | Jul 16, 06:10 UTC | 15h 20m |
| 2026-07-15 | ETH3856 | - | Jul 15, 03:25 UTC | Jul 15, 07:05 UTC | 3h 40m |
| 2026-07-12 | ETH3788 | - | Jul 12, 15:45 UTC | Jul 13, 07:45 UTC | 16h 0m |
| 2026-07-07 | ETH3603 | - | Jul 7, 17:00 UTC | Jul 7, 17:25 UTC | 25m |
| 2026-07-06 | ETH3685 | - | Jul 6, 11:30 UTC | Jul 6, 15:00 UTC | 3h 30m |
| 2026-07-06 | ETH3685 | - | Jul 6, 10:00 UTC | Jul 6, 10:15 UTC | 15m |
| 2026-07-06 | ETH3618 | - | Jul 6, 04:45 UTC | Jul 6, 07:40 UTC | 2h 55m |
| 2026-07-06 | ETH3640 | - | Jul 6, 02:10 UTC | Jul 6, 02:30 UTC | 20m |
| 2026-07-05 | ETH3640 | - | Jul 5, 17:30 UTC | Jul 5, 20:30 UTC | 3h 0m |
| 2026-07-05 | ETH3640 | - | Jul 5, 13:25 UTC | Jul 5, 15:00 UTC | 1h 35m |
| 2026-07-04 | ETH3604 | LGG → LGG | Jul 4, 13:20 UTC | Jul 5, 10:55 UTC | 21h 35m |
| 2026-07-04 | ETH3604 | LGG → LGG | Jul 4, 12:50 UTC | Jul 5, 10:55 UTC | 22h 5m |
| 2026-07-03 | ETH3702 | - | Jul 3, 15:20 UTC | Jul 4, 10:25 UTC | 19h 5m |
| 2026-07-03 | ETH3702 | - | Jul 3, 13:30 UTC | Jul 4, 10:25 UTC | 20h 55m |
| 2026-07-03 | ETH3702 | - | Jul 3, 12:40 UTC | Jul 4, 10:25 UTC | 21h 45m |
| 2026-07-02 | ETH3856 | - | Jul 2, 12:25 UTC | Jul 3, 06:00 UTC | 17h 35m |
| 2026-07-02 | ETH3685 | - | Jul 2, 09:20 UTC | Jul 3, 06:00 UTC | 20h 40m |
| 2026-07-02 | ETH3685 | - | Jul 2, 08:45 UTC | Jul 3, 06:00 UTC | 21h 15m |
| 2026-07-02 | ETH3685 | - | Jul 2, 07:25 UTC | Jul 2, 07:40 UTC | 15m |
| 2026-07-02 | ETH3673 | - | Jul 2, 04:30 UTC | Jul 2, 04:55 UTC | 25m |
| 2026-07-02 | ETH3673 | - | Jul 2, 01:50 UTC | Jul 2, 04:00 UTC | 2h 10m |
| 2026-07-01 | ETH3672 | - | Jul 1, 22:40 UTC | Jul 1, 23:05 UTC | 25m |
| 2026-07-01 | ETH3672 | - | Jul 1, 14:15 UTC | Jul 1, 18:55 UTC | 4h 40m |
| 2026-07-01 | ETH3672 | GKE → OSL | Jul 1, 10:25 UTC | Jul 1, 11:50 UTC | 1h 25m |
| 2026-06-30 | ETH3400 | - | Jun 30, 16:05 UTC | Jul 1, 08:40 UTC | 16h 35m |
| 2026-06-30 | ETH3622 | ADD → DXB | Jun 30, 07:30 UTC | Jun 30, 13:15 UTC | 5h 45m |
| 2026-06-28 | ETH3619 | - | Jun 28, 12:15 UTC | Jun 28, 15:14 UTC | 3h 0m |
| 2026-06-28 | ETH3619 | - | Jun 28, 07:40 UTC | Jun 28, 08:50 UTC | 1h 10m |
| 2026-06-27 | ETH3792 | LGG → LGG | Jun 27, 19:15 UTC | Jun 28, 05:24 UTC | 10h 10m |
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-ARK page for operator, model, and routing details .