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
- 296
- Distinct callsigns
- 20
- Country
- ET
- Last broadcast
- Jul 26, 21:25 UTC
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 |
| ETH3640 | Ethiopian Airlines | 13 | 2026-07-26 |
| ETH3604 | Ethiopian Airlines | 11 | 2026-05-14 |
| ETH3738 | - | 10 | 2026-06-15 |
| ETH3714 | Ethiopian Airlines | 9 | 2026-07-25 |
| ETH3707 | Ethiopian Airlines | 9 | 2026-07-24 |
| ETH3712 | - | 8 | 2026-07-08 |
| ETH3685 | - | 7 | 2026-07-20 |
| ETH3656 | - | 7 | 2026-07-16 |
| ETH3651 | - | 7 | 2026-06-21 |
| ETH3502 | - | 7 | 2026-07-11 |
| ETH3704 | - | 6 | 2026-07-03 |
| ETH3600 | - | 6 | 2026-07-23 |
| 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 |
| ETH3618 | - | 5 | 2026-07-20 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | ETH3640 | OSL → ICN | Jul 26, 18:35 UTC | Jul 26, 21:25 UTC | 2h 50m |
| 2026-07-26 | ETH3640 | OSL → ICN | Jul 26, 15:00 UTC | Jul 26, 16:35 UTC | 1h 35m |
| 2026-07-25 | ETH3714 | ADD → BRU | Jul 25, 23:30 UTC | Jul 26, 12:55 UTC | 13h 26m |
| 2026-07-25 | ETH3611 | BOM → ADD | Jul 25, 09:35 UTC | Jul 26, 00:00 UTC | 14h 25m |
| 2026-07-24 | ETH3445 | LGG → IST | Jul 24, 18:00 UTC | Jul 25, 07:15 UTC | 13h 15m |
| 2026-07-24 | ETH3707 | LGG → HKG | Jul 24, 13:45 UTC | Jul 24, 15:35 UTC | 1h 50m |
| 2026-07-24 | ETH3707 | LGG → HKG | Jul 24, 00:10 UTC | Jul 24, 11:00 UTC | 10h 50m |
| 2026-07-23 | ETH3600 | - | Jul 23, 21:30 UTC | Jul 23, 22:00 UTC | 30m |
| 2026-07-23 | ETH3600 | - | Jul 23, 15:30 UTC | Jul 23, 19:55 UTC | 4h 25m |
| 2026-07-23 | ETH3910 | - | Jul 23, 11:45 UTC | Jul 23, 12:55 UTC | 1h 10m |
| 2026-07-22 | ETH3229 | HKG → ADD | Jul 22, 04:50 UTC | Jul 22, 05:25 UTC | 35m |
| 2026-07-22 | ETH3229 | HKG → ADD | Jul 22, 03:05 UTC | Jul 22, 03:20 UTC | 15m |
| 2026-07-21 | ETH3600 | - | Jul 21, 18:35 UTC | Jul 22, 00:50 UTC | 6h 15m |
| 2026-07-21 | ETH3652 | - | Jul 21, 14:50 UTC | Jul 21, 15:55 UTC | 1h 5m |
| 2026-07-20 | ETH3652 | - | Jul 20, 17:05 UTC | Jul 21, 15:55 UTC | 22h 50m |
| 2026-07-20 | ETH3685 | - | Jul 20, 15:05 UTC | Jul 21, 15:00 UTC | 23h 55m |
| 2026-07-20 | ETH3685 | - | Jul 20, 13:25 UTC | Jul 20, 17:05 UTC | 3h 40m |
| 2026-07-20 | ETH3685 | - | Jul 20, 11:35 UTC | Jul 20, 11:50 UTC | 15m |
| 2026-07-20 | ETH3618 | - | Jul 20, 06:15 UTC | Jul 20, 09:15 UTC | 3h 0m |
| 2026-07-20 | ETH3640 | - | Jul 20, 02:20 UTC | Jul 20, 02:55 UTC | 35m |
| 2026-07-19 | ETH3640 | - | Jul 19, 17:40 UTC | Jul 19, 20:20 UTC | 2h 40m |
| 2026-07-19 | ETH3640 | - | Jul 19, 14:00 UTC | Jul 19, 15:40 UTC | 1h 40m |
| 2026-07-18 | ETH3714 | ADD → BRU | Jul 18, 17:05 UTC | Jul 19, 12:15 UTC | 19h 10m |
| 2026-07-18 | ETH3714 | ADD → BRU | Jul 18, 16:35 UTC | Jul 19, 12:15 UTC | 19h 40m |
| 2026-07-18 | ETH3665 | BLR → ADD | Jul 18, 09:10 UTC | Jul 18, 14:10 UTC | 5h 0m |
| 2026-07-18 | ETH3665 | BLR → ADD | Jul 18, 04:15 UTC | Jul 18, 06:15 UTC | 2h 0m |
| 2026-07-17 | ETH3905 | - | Jul 17, 23:20 UTC | Jul 18, 01:15 UTC | 1h 55m |
| 2026-07-17 | ETH3905 | - | Jul 17, 05:04 UTC | Jul 18, 01:15 UTC | 20h 10m |
| 2026-07-17 | ETH3905 | - | Jul 17, 03:05 UTC | Jul 18, 01:15 UTC | 22h 10m |
| 2026-07-17 | ETH3657 | - | Jul 17, 01:55 UTC | Jul 18, 01:00 UTC | 23h 5m |
| 2026-07-16 | ETH3656 | - | Jul 16, 15:40 UTC | Jul 16, 19:30 UTC | 3h 50m |
| 2026-07-15 | ETH3656 | - | Jul 15, 17:20 UTC | Jul 16, 16:30 UTC | 23h 10m |
| 2026-07-15 | ETH3629 | - | Jul 15, 14:55 UTC | Jul 15, 17:50 UTC | 2h 55m |
| 2026-07-15 | ETH3629 | - | Jul 15, 12:30 UTC | Jul 15, 12:45 UTC | 15m |
| 2026-07-15 | ETH3618 | - | Jul 15, 06:15 UTC | Jul 15, 09:30 UTC | 3h 15m |
| 2026-07-15 | ETH3640 | - | Jul 15, 03:35 UTC | Jul 15, 04:00 UTC | 25m |
| 2026-07-14 | ETH3640 | - | Jul 14, 19:10 UTC | Jul 14, 23:55 UTC | 4h 44m |
| 2026-07-14 | ETH3707 | BUD → OSL | Jul 14, 15:05 UTC | Jul 14, 17:10 UTC | 2h 5m |
| 2026-07-14 | ETH3707 | - | Jul 14, 06:30 UTC | Jul 14, 12:25 UTC | 5h 55m |
| 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 |
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 .