sensors Mode-S transponder
04012B
ICAO 24-bit transponder address · allocated to Ethiopia
Currently assigned to ET-ATR · AIRBUS A-350-900
- Hex
- 04012B
- Octal
- 01000453
- Decimal
- 262,443
- Country
- ET
- Tail
- ET-ATR
- Type
- A359
- Flights observed
- 147
- Distinct callsigns
- 20
- Country
- ET
- Last broadcast
- 2d ago
Last known position
Country allocation
The ICAO 24-bit address 04012B 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 |
|---|---|---|---|
| ETH638 | - | 16 | 2026-07-09 |
| ETH639 | - | 15 | 2026-07-09 |
| ETH727 | Ethiopian Airlines | 12 | 2026-05-25 |
| ETH726 | Ethiopian Airlines | 12 | 2026-05-25 |
| ETH750 | - | 6 | 2026-07-05 |
| ETH737 | Ethiopian Airlines | 6 | 2026-04-26 |
| ETH729 | Ethiopian Airlines | 6 | 2026-05-31 |
| ETH736 | Ethiopian Airlines | 5 | 2026-04-26 |
| ETH685 | Ethiopian Airlines | 5 | 2026-06-16 |
| ETH605 | - | 5 | 2026-07-11 |
| ETH955 | Ethiopian Airlines | 4 | 2026-06-11 |
| ETH925 | - | 4 | 2026-07-10 |
| ETH751 | Ethiopian Airlines | 4 | 2026-07-05 |
| ETH728 | Ethiopian Airlines | 4 | 2026-04-24 |
| ETH713 | Ethiopian Airlines | 4 | 2026-05-29 |
| ETH645 | Ethiopian Airlines | 4 | 2026-06-18 |
| ETH604 | - | 4 | 2026-07-11 |
| ETH735 | Ethiopian Airlines | 3 | 2026-06-30 |
| ETH734 | - | 3 | 2026-06-30 |
| ETH712 | Ethiopian Airlines | 3 | 2026-05-28 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-11 | ETH605 | - | Jul 11, 18:25 UTC | Jul 12, 00:40 UTC | 6h 15m |
| 2026-07-11 | ETH604 | - | Jul 11, 08:20 UTC | Jul 11, 08:35 UTC | 15m |
| 2026-07-10 | ETH925 | - | Jul 10, 16:50 UTC | Jul 11, 03:55 UTC | 11h 5m |
| 2026-07-10 | ETH925 | - | Jul 10, 13:20 UTC | Jul 10, 13:55 UTC | 35m |
| 2026-07-09 | ETH639 | - | Jul 9, 18:20 UTC | Jul 10, 11:20 UTC | 17h 0m |
| 2026-07-09 | ETH639 | - | Jul 9, 15:40 UTC | Jul 9, 16:10 UTC | 30m |
| 2026-07-09 | ETH638 | - | Jul 9, 08:30 UTC | Jul 9, 09:15 UTC | 45m |
| 2026-07-09 | ETH638 | - | Jul 9, 02:20 UTC | Jul 9, 06:45 UTC | 4h 25m |
| 2026-07-07 | ETH639 | KUL → SIN | Jul 7, 18:50 UTC | Jul 8, 13:10 UTC | 18h 20m |
| 2026-07-07 | ETH639 | KUL → SIN | Jul 7, 18:25 UTC | Jul 8, 13:10 UTC | 18h 45m |
| 2026-07-07 | ETH639 | KUL → SIN | Jul 7, 15:30 UTC | Jul 7, 16:20 UTC | 50m |
| 2026-07-07 | ETH638 | - | Jul 7, 08:25 UTC | Jul 7, 09:10 UTC | 45m |
| 2026-07-07 | ETH638 | - | Jul 7, 02:15 UTC | Jul 7, 06:45 UTC | 4h 30m |
| 2026-07-06 | ETH638 | - | Jul 6, 09:25 UTC | Jul 7, 06:45 UTC | 21h 20m |
| 2026-07-06 | ETH638 | - | Jul 6, 07:05 UTC | Jul 7, 06:45 UTC | 23h 40m |
| 2026-07-05 | ETH751 | BRU → ADD | Jul 5, 19:55 UTC | Jul 6, 09:30 UTC | 13h 35m |
| 2026-07-05 | ETH750 | - | Jul 5, 04:25 UTC | Jul 5, 05:15 UTC | 50m |
| 2026-07-03 | ETH751 | BRU → ADD | Jul 3, 19:50 UTC | Jul 3, 23:10 UTC | 3h 20m |
| 2026-07-03 | ETH750 | - | Jul 3, 01:40 UTC | Jul 3, 04:55 UTC | 3h 15m |
| 2026-07-02 | ETH453 | - | Jul 2, 00:55 UTC | Jul 2, 01:10 UTC | 15m |
| 2026-06-30 | ETH735 | CDG → ADD | Jun 30, 20:10 UTC | Jun 30, 23:45 UTC | 3h 35m |
| 2026-06-30 | ETH734 | - | Jun 30, 00:14 UTC | Jun 30, 04:15 UTC | 4h 1m |
| 2026-06-27 | ETH639 | KUL → SIN | Jun 27, 18:20 UTC | Jun 27, 21:59 UTC | 3h 40m |
| 2026-06-27 | ETH639 | KUL → SIN | Jun 27, 15:24 UTC | Jun 27, 16:10 UTC | 45m |
| 2026-06-27 | ETH638 | - | Jun 27, 08:35 UTC | Jun 27, 09:19 UTC | 45m |
| 2026-06-27 | ETH638 | - | Jun 27, 02:25 UTC | Jun 27, 06:44 UTC | 4h 20m |
| 2026-06-25 | ETH751 | BRU → ADD | Jun 25, 19:59 UTC | Jun 25, 23:55 UTC | 3h 55m |
| 2026-06-25 | ETH750 | - | Jun 25, 00:40 UTC | Jun 25, 04:35 UTC | 3h 55m |
| 2026-06-23 | ETH751 | BRU → ADD | Jun 23, 20:15 UTC | Jun 23, 23:39 UTC | 3h 25m |
| 2026-06-23 | ETH750 | - | Jun 23, 01:04 UTC | Jun 23, 04:50 UTC | 3h 45m |
| 2026-06-22 | ETH750 | - | Jun 22, 08:50 UTC | Jun 23, 04:50 UTC | 20h 0m |
| 2026-06-22 | ETH750 | - | Jun 22, 08:29 UTC | Jun 23, 04:50 UTC | 20h 20m |
| 2026-06-22 | ETH907 | - | Jun 22, 05:29 UTC | Jun 22, 06:10 UTC | 40m |
| 2026-06-20 | ETH639 | KUL → SIN | Jun 20, 18:14 UTC | Jun 20, 18:59 UTC | 45m |
| 2026-06-20 | ETH639 | KUL → SIN | Jun 20, 15:34 UTC | Jun 20, 16:09 UTC | 35m |
| 2026-06-20 | ETH638 | - | Jun 20, 08:39 UTC | Jun 20, 09:24 UTC | 45m |
| 2026-06-20 | ETH638 | - | Jun 20, 02:24 UTC | Jun 20, 06:54 UTC | 4h 30m |
| 2026-06-18 | ETH645 | HKG → ADD | Jun 18, 19:45 UTC | Jun 18, 22:50 UTC | 3h 5m |
| 2026-06-18 | ETH645 | HKG → ADD | Jun 18, 18:05 UTC | Jun 18, 18:20 UTC | 15m |
| 2026-06-18 | ETH645 | HKG → ADD | Jun 18, 15:50 UTC | Jun 18, 16:05 UTC | 15m |
| 2026-06-18 | ETH645 | HKG → ADD | Jun 18, 14:10 UTC | Jun 18, 15:00 UTC | 50m |
| 2026-06-18 | ETH644 | HKG → MNL | Jun 18, 10:45 UTC | Jun 18, 12:30 UTC | 1h 45m |
| 2026-06-18 | ETH644 | - | Jun 18, 07:05 UTC | Jun 18, 07:55 UTC | 50m |
| 2026-06-18 | ETH644 | - | Jun 18, 01:15 UTC | Jun 18, 06:00 UTC | 4h 45m |
| 2026-06-16 | ETH685 | PVG → ADD | Jun 16, 20:05 UTC | Jun 16, 23:15 UTC | 3h 10m |
| 2026-06-16 | ETH685 | PVG → ADD | Jun 16, 03:00 UTC | Jun 16, 23:15 UTC | 20h 16m |
| 2026-06-16 | ETH685 | PVG → ADD | Jun 16, 00:50 UTC | Jun 16, 23:15 UTC | 22h 26m |
| 2026-06-15 | ETH684 | - | Jun 15, 14:30 UTC | Jun 16, 03:35 UTC | 13h 5m |
| 2026-06-15 | ETH925 | - | Jun 15, 12:25 UTC | Jun 15, 13:00 UTC | 35m |
| 2026-06-14 | ETH925 | - | Jun 14, 22:05 UTC | Jun 15, 10:24 UTC | 12h 19m |
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-ATR page for operator, model, and routing details .