sensors Mode-S transponder
04022C
ICAO 24-bit transponder address · allocated to Ethiopia
Currently assigned to ET-BAC · BOEING 777-200LR
- Hex
- 04022C
- Octal
- 01001054
- Decimal
- 262,700
- Country
- ET
- Tail
- ET-BAC
- Type
- B77L
- Flights observed
- 258
- Distinct callsigns
- 20
- Country
- ET
- Last broadcast
- 40m ago
Last known position
Country allocation
The ICAO 24-bit address 04022C 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 | 18 | 2026-05-30 |
| ETH3605 | Ethiopian Airlines | 14 | 2026-05-14 |
| ETH3604 | Ethiopian Airlines | 11 | 2026-05-14 |
| ETH3738 | - | 10 | 2026-06-15 |
| ETH3712 | - | 8 | 2026-07-08 |
| ETH3651 | - | 7 | 2026-06-21 |
| ETH3502 | - | 7 | 2026-07-11 |
| ETH3714 | - | 6 | 2026-07-02 |
| ETH3707 | - | 6 | 2026-07-14 |
| ETH3704 | - | 6 | 2026-07-03 |
| ETH3640 | - | 6 | 2026-07-07 |
| ETH3789 | Ethiopian Airlines | 5 | 2026-05-25 |
| ETH3788 | - | 5 | 2026-06-28 |
| ETH3681 | Ethiopian Airlines | 5 | 2026-04-30 |
| ETH3680 | Ethiopian Airlines | 5 | 2026-04-30 |
| ETH3672 | Ethiopian Airlines | 5 | 2026-06-11 |
| ETH3656 | - | 5 | 2026-06-26 |
| ETH3807 | Ethiopian Airlines | 4 | 2026-06-06 |
| ETH3750 | Ethiopian Airlines | 4 | 2026-05-31 |
| ETH3725 | - | 4 | 2026-07-06 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | ETH3707 | - | Jul 14, 06:30 UTC | Jul 14, 06:55 UTC | 25m |
| 2026-07-14 | ETH3707 | - | Jul 14, 01:30 UTC | Jul 14, 01:45 UTC | 15m |
| 2026-07-13 | ETH3600 | - | Jul 13, 22:10 UTC | Jul 13, 22:40 UTC | 30m |
| 2026-07-13 | ETH3600 | - | Jul 13, 01:05 UTC | Jul 13, 20:25 UTC | 19h 20m |
| 2026-07-13 | ETH3600 | - | Jul 13, 00:15 UTC | Jul 13, 20:25 UTC | 20h 10m |
| 2026-07-12 | ETH3619 | - | Jul 12, 22:05 UTC | Jul 12, 22:15 UTC | 10m |
| 2026-07-12 | ETH3792 | - | Jul 12, 07:10 UTC | Jul 12, 16:15 UTC | 9h 5m |
| 2026-07-11 | ETH3511 | ORD → OSL | Jul 11, 19:40 UTC | Jul 12, 03:10 UTC | 7h 30m |
| 2026-07-11 | ETH3502 | - | Jul 11, 07:55 UTC | Jul 11, 17:00 UTC | 9h 5m |
| 2026-07-10 | ETH3502 | - | Jul 10, 15:30 UTC | Jul 11, 05:50 UTC | 14h 20m |
| 2026-07-09 | ETH3916 | - | Jul 9, 22:50 UTC | Jul 10, 13:35 UTC | 14h 45m |
| 2026-07-09 | ETH3726 | - | Jul 9, 11:30 UTC | Jul 9, 23:30 UTC | 12h 0m |
| 2026-07-09 | ETH3726 | - | Jul 9, 08:15 UTC | Jul 9, 09:20 UTC | 1h 5m |
| 2026-07-08 | ETH3712 | - | Jul 8, 09:30 UTC | Jul 9, 03:20 UTC | 17h 50m |
| 2026-07-08 | ETH3629 | - | Jul 8, 07:45 UTC | Jul 8, 07:55 UTC | 10m |
| 2026-07-08 | ETH3618 | - | Jul 8, 02:45 UTC | Jul 8, 05:50 UTC | 3h 5m |
| 2026-07-07 | ETH3640 | - | Jul 7, 23:40 UTC | Jul 8, 00:00 UTC | 20m |
| 2026-07-07 | ETH3640 | - | Jul 7, 14:50 UTC | Jul 7, 19:40 UTC | 4h 50m |
| 2026-07-07 | ETH3640 | MST → OSL | Jul 7, 10:35 UTC | Jul 7, 12:15 UTC | 1h 40m |
| 2026-07-07 | ETH3400 | - | Jul 7, 05:45 UTC | Jul 7, 09:05 UTC | 3h 20m |
| 2026-07-06 | ETH3725 | - | Jul 6, 07:05 UTC | Jul 7, 07:00 UTC | 23h 55m |
| 2026-07-06 | ETH3725 | - | Jul 6, 06:30 UTC | Jul 6, 08:55 UTC | 2h 25m |
| 2026-07-05 | ETH3518 | - | Jul 5, 20:00 UTC | Jul 6, 03:55 UTC | 7h 55m |
| 2026-07-05 | ETH3518 | - | Jul 5, 17:10 UTC | Jul 5, 17:35 UTC | 25m |
| 2026-07-05 | ETH3516 | - | Jul 5, 08:30 UTC | Jul 5, 10:40 UTC | 2h 10m |
| 2026-07-04 | ETH3516 | - | Jul 4, 19:20 UTC | Jul 5, 06:00 UTC | 10h 40m |
| 2026-07-04 | ETH3734 | - | Jul 4, 15:15 UTC | Jul 4, 17:10 UTC | 1h 55m |
| 2026-07-03 | ETH3704 | - | Jul 3, 20:35 UTC | Jul 4, 13:15 UTC | 16h 40m |
| 2026-07-03 | ETH3638 | - | Jul 3, 11:00 UTC | Jul 3, 17:50 UTC | 6h 50m |
| 2026-07-02 | ETH3714 | - | Jul 2, 16:20 UTC | Jul 3, 08:10 UTC | 15h 50m |
| 2026-07-02 | ETH3753 | - | Jul 2, 11:50 UTC | Jul 2, 13:55 UTC | 2h 5m |
| 2026-07-01 | ETH3483 | - | Jul 1, 17:20 UTC | Jul 2, 08:55 UTC | 15h 35m |
| 2026-07-01 | ETH3294 | - | Jul 1, 01:55 UTC | Jul 1, 06:55 UTC | 5h 0m |
| 2026-06-30 | ETH3773 | - | Jun 30, 07:25 UTC | Jun 30, 22:40 UTC | 15h 15m |
| 2026-06-30 | ETH3568 | LGG → WUH | Jun 30, 04:20 UTC | Jun 30, 04:30 UTC | 10m |
| 2026-06-29 | ETH3568 | LGG → WUH | Jun 29, 22:24 UTC | Jun 30, 03:25 UTC | 5h 1m |
| 2026-06-29 | ETH3568 | LGG → WUH | Jun 29, 07:05 UTC | Jun 30, 03:25 UTC | 20h 21m |
| 2026-06-29 | ETH3568 | LGG → WUH | Jun 29, 05:30 UTC | Jun 30, 03:25 UTC | 21h 56m |
| 2026-06-28 | ETH3788 | - | Jun 28, 16:29 UTC | Jun 29, 08:50 UTC | 16h 20m |
| 2026-06-28 | ETH3788 | - | Jun 28, 01:19 UTC | Jun 28, 20:29 UTC | 19h 10m |
| 2026-06-27 | ETH3788 | - | Jun 27, 23:25 UTC | Jun 28, 20:29 UTC | 21h 5m |
| 2026-06-27 | ETH3751 | - | Jun 27, 17:04 UTC | Jun 28, 17:00 UTC | 23h 55m |
| 2026-06-27 | ETH3751 | - | Jun 27, 13:44 UTC | Jun 28, 04:05 UTC | 14h 20m |
| 2026-06-26 | ETH3656 | - | Jun 26, 21:04 UTC | Jun 27, 18:54 UTC | 21h 50m |
| 2026-06-26 | ETH3656 | - | Jun 26, 20:04 UTC | Jun 27, 18:54 UTC | 22h 50m |
| 2026-06-26 | ETH3445 | - | Jun 26, 16:24 UTC | Jun 26, 18:09 UTC | 1h 45m |
| 2026-06-26 | ETH3793 | - | Jun 26, 10:25 UTC | Jun 26, 11:40 UTC | 1h 15m |
| 2026-06-26 | ETH3793 | - | Jun 26, 00:39 UTC | Jun 26, 00:55 UTC | 15m |
| 2026-06-25 | ETH3365 | - | Jun 25, 21:50 UTC | Jun 25, 22:14 UTC | 25m |
| 2026-06-25 | ETH3365 | - | Jun 25, 12:15 UTC | Jun 25, 14:59 UTC | 2h 45m |
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-BAC page for operator, model, and routing details .