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
- 116
- Distinct callsigns
- 20
- Country
- ET
- Last broadcast
- 1h ago
Last known 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 | 10 | 2026-06-01 |
| ETH3714 | Ethiopian Airlines | 8 | 2026-05-29 |
| ETH3785 | - | 6 | 2026-04-17 |
| ETH3738 | Ethiopian Airlines | 6 | 2026-06-02 |
| ETH3718 | Ethiopian Airlines | 5 | 2026-05-05 |
| ETH3712 | Ethiopian Airlines | 5 | 2026-05-05 |
| ETH3750 | Ethiopian Airlines | 4 | 2026-05-29 |
| ETH3720 | Ethiopian Airlines | 4 | 2026-06-01 |
| ETH3640 | Ethiopian Airlines | 4 | 2026-05-10 |
| ETH3229 | Ethiopian Airlines | 4 | 2026-05-06 |
| ETH3784 | - | 3 | 2026-04-18 |
| ETH3751 | Ethiopian Airlines | 3 | 2026-05-30 |
| ETH3727 | - | 3 | 2026-05-09 |
| ETH3713 | Ethiopian Airlines | 3 | 2026-04-24 |
| ETH3708 | Ethiopian Airlines | 3 | 2026-05-13 |
| ETH3704 | Ethiopian Airlines | 3 | 2026-05-24 |
| ETH3690 | - | 3 | 2026-05-01 |
| ETH3681 | Ethiopian Airlines | 3 | 2026-04-25 |
| ETH3656 | Ethiopian Airlines | 3 | 2026-05-27 |
| ETH3366 | - | 3 | 2026-05-14 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | ETH3738 | LGG → PVG | Jun 2, 19:45 UTC | Jun 3, 01:15 UTC | 5h 30m |
| 2026-06-01 | ETH3739 | GRU → SCL | Jun 1, 18:00 UTC | Jun 2, 12:15 UTC | 18h 15m |
| 2026-06-01 | ETH3739 | GRU → SCL | Jun 1, 15:45 UTC | Jun 2, 12:15 UTC | 20h 30m |
| 2026-06-01 | ETH3738 | LGG → PVG | Jun 1, 13:20 UTC | Jun 2, 12:15 UTC | 22h 55m |
| 2026-06-01 | ETH3738 | LGG → PVG | Jun 1, 12:25 UTC | Jun 2, 11:15 UTC | 22h 50m |
| 2026-06-01 | ETH3720 | ADD → LGG | Jun 1, 06:10 UTC | Jun 1, 10:00 UTC | 3h 50m |
| 2026-05-31 | ETH3906 | GRU → ADD | May 31, 17:10 UTC | May 31, 17:50 UTC | 40m |
| 2026-05-30 | ETH3751 | CAN → ADD | May 30, 09:10 UTC | May 30, 13:55 UTC | 4h 45m |
| 2026-05-29 | ETH3750 | LGG → CAN | May 29, 19:10 UTC | May 29, 21:20 UTC | 2h 10m |
| 2026-05-29 | ETH3714 | ADD → BRU | May 29, 12:50 UTC | May 29, 16:35 UTC | 3h 45m |
| 2026-05-27 | ETH3657 | ADD → LGG | May 27, 23:20 UTC | May 28, 04:45 UTC | 5h 25m |
| 2026-05-27 | ETH3656 | LGG → LGG | May 27, 14:50 UTC | May 27, 17:35 UTC | 2h 45m |
| 2026-05-26 | ETH3656 | LGG → LGG | May 26, 21:09 UTC | May 27, 17:35 UTC | 20h 25m |
| 2026-05-25 | ETH3717 | LGG → ADD | May 25, 21:19 UTC | May 26, 21:09 UTC | 23h 50m |
| 2026-05-25 | ETH3717 | LGG → ADD | May 25, 19:30 UTC | May 26, 12:10 UTC | 16h 40m |
| 2026-05-24 | ETH3706 | ADD → LGG | May 24, 21:20 UTC | May 25, 17:10 UTC | 19h 50m |
| 2026-05-24 | ETH3751 | CAN → ADD | May 24, 19:55 UTC | May 24, 20:10 UTC | 15m |
| 2026-05-24 | ETH3750 | LGG → CAN | May 24, 05:40 UTC | May 24, 07:45 UTC | 2h 5m |
| 2026-05-24 | ETH3704 | ADD → BRU | May 24, 03:25 UTC | May 24, 03:50 UTC | 25m |
| 2026-05-23 | ETH3704 | ADD → BRU | May 23, 07:20 UTC | May 24, 03:50 UTC | 20h 30m |
| 2026-05-23 | ETH3611 | BOM → ADD | May 23, 07:10 UTC | May 24, 03:50 UTC | 20h 40m |
| 2026-05-22 | ETH3725 | DUB → LOS | May 22, 13:20 UTC | May 23, 03:20 UTC | 13h 59m |
| 2026-05-21 | ETH3720 | ADD → LGG | May 21, 15:20 UTC | May 22, 09:50 UTC | 18h 30m |
| 2026-05-21 | ETH3720 | ADD → LGG | May 21, 13:20 UTC | May 22, 09:50 UTC | 20h 30m |
| 2026-05-20 | ETH3750 | LGG → CAN | May 20, 23:05 UTC | May 21, 01:30 UTC | 2h 25m |
| 2026-05-20 | ETH3739 | GRU → SCL | May 20, 04:40 UTC | May 20, 21:05 UTC | 16h 25m |
| 2026-05-19 | ETH3739 | GRU → SCL | May 19, 21:20 UTC | May 20, 21:05 UTC | 23h 46m |
| 2026-05-19 | ETH3738 | LGG → PVG | May 19, 19:45 UTC | May 20, 17:35 UTC | 21h 51m |
| 2026-05-18 | ETH3739 | GRU → SCL | May 18, 23:20 UTC | May 19, 17:40 UTC | 18h 20m |
| 2026-05-18 | ETH3739 | GRU → SCL | May 18, 22:50 UTC | May 19, 17:40 UTC | 18h 50m |
| 2026-05-18 | ETH3739 | GRU → SCL | May 18, 19:20 UTC | May 19, 17:40 UTC | 22h 20m |
| 2026-05-18 | ETH3738 | LGG → PVG | May 18, 17:25 UTC | May 19, 17:15 UTC | 23h 49m |
| 2026-05-18 | ETH3710 | LGG → ADD | May 18, 11:10 UTC | May 18, 14:20 UTC | 3h 10m |
| 2026-05-17 | ET3302 | ADD → NBO | May 17, 22:55 UTC | May 17, 23:10 UTC | 15m |
| 2026-05-14 | ETH3711 | DUB → BRU | May 14, 22:20 UTC | May 15, 00:55 UTC | 2h 35m |
| 2026-05-14 | ETH3366 | - | May 14, 16:50 UTC | May 14, 19:10 UTC | 2h 20m |
| 2026-05-14 | ETH3366 | - | May 14, 07:00 UTC | May 14, 14:05 UTC | 7h 5m |
| 2026-05-14 | ETH3366 | - | May 14, 01:50 UTC | May 14, 02:00 UTC | 10m |
| 2026-05-13 | ETH3708 | LGG → HKG | May 13, 11:40 UTC | May 13, 22:40 UTC | 11h 0m |
| 2026-05-12 | ETH3739 | GRU → SCL | May 12, 16:10 UTC | May 13, 09:40 UTC | 17h 30m |
| 2026-05-12 | ETH3739 | GRU → SCL | May 12, 14:45 UTC | May 13, 09:40 UTC | 18h 55m |
| 2026-05-12 | ETH3739 | GRU → SCL | May 12, 11:20 UTC | May 13, 09:40 UTC | 22h 20m |
| 2026-05-12 | ETH3738 | LGG → PVG | May 12, 09:20 UTC | May 13, 09:15 UTC | 23h 55m |
| 2026-05-11 | ETH3408 | - | May 11, 13:20 UTC | May 12, 06:35 UTC | 17h 16m |
| 2026-05-11 | ETH3408 | - | May 11, 10:25 UTC | May 12, 06:35 UTC | 20h 11m |
| 2026-05-11 | ETH3685 | HKG → ADD | May 11, 08:45 UTC | May 11, 08:55 UTC | 10m |
| 2026-05-11 | ET3618 | ICN → HKG | May 11, 06:00 UTC | May 11, 06:20 UTC | 20m |
| 2026-05-11 | ET3618 | ICN → HKG | May 11, 03:10 UTC | May 11, 05:25 UTC | 2h 15m |
| 2026-05-10 | ETH3640 | OSL → ICN | May 10, 16:14 UTC | May 10, 21:00 UTC | 4h 45m |
| 2026-05-10 | ETH3640 | OSL → ICN | May 10, 12:19 UTC | May 10, 13:55 UTC | 1h 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-ARK page for operator, model, and routing details .