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
- 147
- Distinct callsigns
- 20
- Country
- ET
- Last broadcast
- 5h 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 | 16 | 2026-05-16 |
| ETH3605 | Ethiopian Airlines | 14 | 2026-05-14 |
| ETH3604 | Ethiopian Airlines | 11 | 2026-05-14 |
| ETH3738 | Ethiopian Airlines | 8 | 2026-05-16 |
| ETH3712 | Ethiopian Airlines | 7 | 2026-04-25 |
| ETH3789 | Ethiopian Airlines | 5 | 2026-05-25 |
| ETH3681 | Ethiopian Airlines | 5 | 2026-04-30 |
| ETH3680 | Ethiopian Airlines | 5 | 2026-04-30 |
| ETH3714 | Ethiopian Airlines | 4 | 2026-05-21 |
| ETH3708 | Ethiopian Airlines | 4 | 2026-05-26 |
| ETH3702 | Ethiopian Airlines | 4 | 2026-05-25 |
| ETH3039 | Ethiopian Airlines | 4 | 2026-05-28 |
| ETH3750 | Ethiopian Airlines | 3 | 2026-05-02 |
| ETH3707 | Ethiopian Airlines | 3 | 2026-05-23 |
| ETH3704 | Ethiopian Airlines | 3 | 2026-05-08 |
| ETH3672 | Ethiopian Airlines | 3 | 2026-05-20 |
| ETH3657 | - | 3 | 2026-04-13 |
| ETH3656 | Ethiopian Airlines | 3 | 2026-04-24 |
| ETH3640 | Ethiopian Airlines | 3 | 2026-04-19 |
| ETH3505 | Ethiopian Airlines | 3 | 2026-05-29 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | ETH3504 | LOS → ADD | May 29, 13:50 UTC | May 29, 21:30 UTC | 7h 40m |
| 2026-05-29 | ETH3505 | GRU → ADD | May 29, 09:40 UTC | May 29, 11:10 UTC | 1h 30m |
| 2026-05-28 | ETH3505 | GRU → ADD | May 28, 15:05 UTC | May 29, 11:10 UTC | 20h 5m |
| 2026-05-28 | ETH3505 | GRU → ADD | May 28, 13:05 UTC | May 29, 11:10 UTC | 22h 5m |
| 2026-05-28 | ETH3039 | HKG → HKG | May 28, 11:35 UTC | May 29, 11:00 UTC | 23h 25m |
| 2026-05-28 | ETH3039 | HKG → HKG | May 28, 10:45 UTC | May 28, 15:35 UTC | 4h 50m |
| 2026-05-28 | ETH3039 | HKG → HKG | May 28, 10:00 UTC | May 28, 10:15 UTC | 15m |
| 2026-05-27 | ETH3784 | - | May 27, 19:00 UTC | May 28, 07:50 UTC | 12h 50m |
| 2026-05-27 | ETH3785 | - | May 27, 01:05 UTC | May 27, 15:50 UTC | 14h 46m |
| 2026-05-26 | ETH3708 | LGG → HKG | May 26, 19:25 UTC | May 26, 20:00 UTC | 35m |
| 2026-05-26 | ETH3708 | LGG → HKG | May 26, 08:30 UTC | May 26, 12:10 UTC | 3h 40m |
| 2026-05-25 | ETH3702 | ADD → BRU | May 25, 13:10 UTC | May 26, 05:10 UTC | 15h 59m |
| 2026-05-25 | ETH3789 | PVG → ADD | May 25, 03:05 UTC | May 26, 03:00 UTC | 23h 55m |
| 2026-05-25 | ETH3789 | PVG → ADD | May 25, 02:20 UTC | May 25, 16:30 UTC | 14h 10m |
| 2026-05-24 | ETH3788 | LGG → PVG | May 24, 11:00 UTC | May 25, 03:50 UTC | 16h 50m |
| 2026-05-24 | ETH3619 | BKK → ADD | May 24, 08:25 UTC | May 24, 08:45 UTC | 20m |
| 2026-05-23 | ETH3792 | LGG → LGG | May 23, 16:30 UTC | May 24, 06:00 UTC | 13h 31m |
| 2026-05-23 | ETH3707 | LGG → HKG | May 23, 11:50 UTC | May 23, 14:05 UTC | 2h 15m |
| 2026-05-23 | ETH3707 | LGG → HKG | May 23, 03:55 UTC | May 23, 09:40 UTC | 5h 45m |
| 2026-05-22 | ETH3707 | LGG → HKG | May 22, 22:50 UTC | May 22, 23:00 UTC | 10m |
| 2026-05-22 | ETH3708 | LGG → HKG | May 22, 18:45 UTC | May 22, 19:20 UTC | 35m |
| 2026-05-22 | ETH3708 | LGG → HKG | May 22, 08:10 UTC | May 22, 12:00 UTC | 3h 50m |
| 2026-05-21 | ETH3714 | ADD → BRU | May 21, 13:05 UTC | May 22, 05:15 UTC | 16h 10m |
| 2026-05-21 | ETH3714 | ADD → BRU | May 21, 10:10 UTC | May 22, 05:15 UTC | 19h 5m |
| 2026-05-21 | ETH3685 | HKG → ADD | May 21, 08:20 UTC | May 21, 08:35 UTC | 15m |
| 2026-05-21 | ETH3673 | ICN → HKG | May 21, 04:25 UTC | May 21, 04:50 UTC | 25m |
| 2026-05-21 | ETH3673 | ICN → HKG | May 21, 01:35 UTC | May 21, 03:50 UTC | 2h 15m |
| 2026-05-20 | ETH3672 | OSL → ICN | May 20, 22:35 UTC | May 20, 23:05 UTC | 30m |
| 2026-05-20 | ETH3672 | OSL → ICN | May 20, 13:55 UTC | May 20, 18:35 UTC | 4h 40m |
| 2026-05-20 | ETH3672 | OSL → ICN | May 20, 10:25 UTC | May 20, 12:00 UTC | 1h 35m |
| 2026-05-20 | ETH3400 | MST → ADD | May 20, 04:25 UTC | May 20, 08:45 UTC | 4h 21m |
| 2026-05-18 | ETH3911 | ADD → LOS | May 18, 15:00 UTC | May 18, 15:35 UTC | 35m |
| 2026-05-17 | ETH3725 | DUB → LOS | May 17, 17:05 UTC | May 18, 15:35 UTC | 22h 30m |
| 2026-05-17 | ETH3725 | DUB → LOS | May 17, 16:10 UTC | May 18, 15:00 UTC | 22h 50m |
| 2026-05-16 | ETH3739 | GRU → SCL | May 16, 17:45 UTC | May 17, 12:10 UTC | 18h 25m |
| 2026-05-16 | ETH3739 | GRU → SCL | May 16, 15:31 UTC | May 17, 12:10 UTC | 20h 40m |
| 2026-05-16 | ETH3738 | LGG → PVG | May 16, 13:05 UTC | May 17, 12:10 UTC | 23h 5m |
| 2026-05-16 | ETH3738 | LGG → PVG | May 16, 12:21 UTC | May 17, 11:01 UTC | 22h 40m |
| 2026-05-15 | ETH3739 | GRU → SCL | May 15, 15:35 UTC | May 16, 10:11 UTC | 18h 36m |
| 2026-05-15 | ETH3739 | GRU → SCL | May 15, 13:05 UTC | May 16, 10:11 UTC | 21h 5m |
| 2026-05-15 | ETH3738 | LGG → PVG | May 15, 11:05 UTC | May 16, 10:11 UTC | 23h 5m |
| 2026-05-15 | ETH3738 | LGG → PVG | May 15, 10:15 UTC | May 16, 09:01 UTC | 22h 45m |
| 2026-05-14 | ETH3605 | LGG → CGO | May 14, 13:05 UTC | May 15, 07:50 UTC | 18h 45m |
| 2026-05-14 | ETH3605 | LGG → CGO | May 14, 11:05 UTC | May 15, 07:50 UTC | 20h 45m |
| 2026-05-14 | ETH3604 | LGG → LGG | May 14, 09:40 UTC | May 15, 07:50 UTC | 22h 10m |
| 2026-05-13 | ETH3605 | LGG → CGO | May 13, 13:31 UTC | May 14, 07:15 UTC | 17h 45m |
| 2026-05-13 | ETH3605 | LGG → CGO | May 13, 09:05 UTC | May 14, 07:15 UTC | 22h 10m |
| 2026-05-13 | ETH3604 | LGG → LGG | May 13, 08:10 UTC | May 14, 07:00 UTC | 22h 50m |
| 2026-05-12 | ETH3720 | ADD → LGG | May 12, 12:40 UTC | May 13, 05:35 UTC | 16h 55m |
| 2026-05-12 | ETH3720 | ADD → LGG | May 12, 09:45 UTC | May 13, 05:35 UTC | 19h 50m |
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 .