sensors Mode-S transponder
040106
ICAO 24-bit transponder address · allocated to Ethiopia
Currently assigned to ET-ASL · BOEING 777-300ER
- Hex
- 040106
- Octal
- 01000406
- Decimal
- 262,406
- Country
- ET
- Tail
- ET-ASL
- Type
- B77W
- Flights observed
- 124
- Distinct callsigns
- 14
- Country
- ET
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 040106 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 14 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| ETH607 | - | 34 | 2026-07-14 |
| ETH606 | - | 27 | 2026-07-14 |
| ETH637 | - | 18 | 2026-06-21 |
| ETH636 | - | 10 | 2026-06-21 |
| ETH318 | - | 8 | 2026-07-09 |
| ETH640 | - | 5 | 2026-07-02 |
| ETH611 | - | 5 | 2026-07-02 |
| ETH610 | - | 5 | 2026-07-01 |
| ETH601 | - | 3 | 2026-07-11 |
| ETH600 | - | 3 | 2026-07-10 |
| ETH847 | Ethiopian Airlines | 2 | 2026-05-01 |
| ETH846 | Ethiopian Airlines | 1 | 2026-05-02 |
| ETH603 | - | 1 | 2026-04-14 |
| ETH602 | Ethiopian Airlines | 1 | 2026-04-14 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | ETH607 | - | Jul 14, 18:20 UTC | Jul 14, 19:30 UTC | 1h 10m |
| 2026-07-14 | ETH607 | - | Jul 14, 16:40 UTC | Jul 14, 16:55 UTC | 15m |
| 2026-07-14 | ETH606 | - | Jul 14, 00:55 UTC | Jul 14, 04:35 UTC | 3h 40m |
| 2026-07-12 | ETH607 | - | Jul 12, 18:35 UTC | Jul 12, 22:10 UTC | 3h 35m |
| 2026-07-12 | ETH606 | - | Jul 12, 01:10 UTC | Jul 12, 05:01 UTC | 3h 50m |
| 2026-07-11 | ETH601 | - | Jul 11, 01:30 UTC | Jul 11, 02:00 UTC | 30m |
| 2026-07-10 | ETH600 | - | Jul 10, 23:00 UTC | Jul 10, 23:30 UTC | 30m |
| 2026-07-10 | ETH601 | - | Jul 10, 00:50 UTC | Jul 10, 01:10 UTC | 20m |
| 2026-07-09 | ETH600 | - | Jul 9, 22:25 UTC | Jul 9, 22:50 UTC | 25m |
| 2026-07-09 | ETH318 | - | Jul 9, 09:35 UTC | Jul 9, 09:50 UTC | 15m |
| 2026-07-08 | ETH607 | - | Jul 8, 18:35 UTC | Jul 8, 22:05 UTC | 3h 30m |
| 2026-07-08 | ETH606 | - | Jul 8, 00:55 UTC | Jul 8, 04:35 UTC | 3h 40m |
| 2026-07-06 | ETH607 | CAN → ADD | Jul 6, 18:25 UTC | Jul 6, 21:35 UTC | 3h 10m |
| 2026-07-06 | ETH606 | - | Jul 6, 01:15 UTC | Jul 6, 04:30 UTC | 3h 15m |
| 2026-07-04 | ETH607 | CAN → ADD | Jul 4, 17:40 UTC | Jul 4, 22:40 UTC | 5h 0m |
| 2026-07-04 | ETH606 | - | Jul 4, 00:55 UTC | Jul 4, 04:30 UTC | 3h 35m |
| 2026-07-02 | ETH611 | - | Jul 2, 22:50 UTC | Jul 2, 23:20 UTC | 30m |
| 2026-07-02 | ETH640 | - | Jul 2, 06:15 UTC | Jul 2, 20:35 UTC | 14h 20m |
| 2026-07-01 | ETH610 | - | Jul 1, 14:25 UTC | Jul 2, 03:00 UTC | 12h 35m |
| 2026-06-30 | ETH611 | - | Jun 30, 23:05 UTC | Jul 1, 11:35 UTC | 12h 30m |
| 2026-06-30 | ETH640 | - | Jun 30, 06:00 UTC | Jun 30, 20:40 UTC | 14h 40m |
| 2026-06-30 | ETH610 | - | Jun 30, 01:55 UTC | Jun 30, 02:50 UTC | 55m |
| 2026-06-29 | ETH318 | - | Jun 29, 09:34 UTC | Jun 29, 09:44 UTC | 10m |
| 2026-06-28 | ETH607 | CAN → ADD | Jun 28, 18:44 UTC | Jun 28, 22:24 UTC | 3h 40m |
| 2026-06-28 | ETH606 | - | Jun 28, 00:59 UTC | Jun 28, 03:59 UTC | 3h 0m |
| 2026-06-27 | ETH318 | - | Jun 27, 09:24 UTC | Jun 27, 09:34 UTC | 10m |
| 2026-06-26 | ETH607 | CAN → ADD | Jun 26, 17:40 UTC | Jun 26, 22:55 UTC | 5h 15m |
| 2026-06-26 | ETH606 | - | Jun 26, 00:59 UTC | Jun 26, 04:04 UTC | 3h 5m |
| 2026-06-24 | ETH607 | CAN → ADD | Jun 24, 03:35 UTC | Jun 24, 21:34 UTC | 18h 0m |
| 2026-06-24 | ETH606 | - | Jun 24, 01:34 UTC | Jun 24, 21:34 UTC | 20h 0m |
| 2026-06-24 | ETH606 | - | Jun 24, 00:59 UTC | Jun 24, 21:34 UTC | 20h 35m |
| 2026-06-23 | ETH601 | - | Jun 23, 01:04 UTC | Jun 23, 01:25 UTC | 20m |
| 2026-06-22 | ETH600 | - | Jun 22, 22:24 UTC | Jun 22, 22:59 UTC | 35m |
| 2026-06-21 | ETH637 | - | Jun 21, 22:24 UTC | Jun 21, 23:00 UTC | 35m |
| 2026-06-21 | ETH636 | - | Jun 21, 01:55 UTC | Jun 21, 21:19 UTC | 19h 25m |
| 2026-06-20 | ETH636 | - | Jun 20, 13:49 UTC | Jun 21, 04:54 UTC | 15h 5m |
| 2026-06-19 | ETH637 | - | Jun 19, 22:19 UTC | Jun 20, 11:40 UTC | 13h 20m |
| 2026-06-19 | ETH636 | - | Jun 19, 01:45 UTC | Jun 19, 21:09 UTC | 19h 25m |
| 2026-06-17 | ETH607 | CAN → ADD | Jun 17, 03:35 UTC | Jun 17, 21:45 UTC | 18h 10m |
| 2026-06-17 | ETH607 | CAN → ADD | Jun 17, 03:00 UTC | Jun 17, 21:45 UTC | 18h 45m |
| 2026-06-17 | ETH606 | - | Jun 17, 00:50 UTC | Jun 17, 21:45 UTC | 20h 55m |
| 2026-06-16 | ETH318 | - | Jun 16, 09:25 UTC | Jun 16, 09:34 UTC | 10m |
| 2026-06-14 | ETH637 | - | Jun 14, 04:05 UTC | Jun 14, 22:50 UTC | 18h 45m |
| 2026-06-14 | ETH636 | - | Jun 14, 01:55 UTC | Jun 14, 22:50 UTC | 20h 55m |
| 2026-06-12 | ETH637 | - | Jun 12, 04:05 UTC | Jun 12, 22:40 UTC | 18h 35m |
| 2026-06-12 | ETH637 | - | Jun 12, 01:50 UTC | Jun 12, 22:40 UTC | 20h 50m |
| 2026-06-10 | ETH607 | CAN → ADD | Jun 10, 03:35 UTC | Jun 10, 22:30 UTC | 18h 55m |
| 2026-06-10 | ETH606 | ADD → CAN | Jun 10, 02:35 UTC | Jun 10, 22:30 UTC | 19h 55m |
| 2026-06-10 | ETH606 | ADD → CAN | Jun 10, 00:50 UTC | Jun 10, 22:30 UTC | 21h 40m |
| 2026-06-08 | ETH637 | TFU → ADD | Jun 8, 04:10 UTC | Jun 8, 22:45 UTC | 18h 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-ASL page for operator, model, and routing details .