sensors Mode-S transponder
040185
ICAO 24-bit transponder address · allocated to Ethiopia
Currently assigned to ET-AXI · BOEING 737-800
- Hex
- 040185
- Octal
- 01000605
- Decimal
- 262,533
- Country
- ET
- Tail
- ET-AXI
- Type
- B738
- Flights observed
- 47
- Distinct callsigns
- 11
- Country
- ET
- Last broadcast
- Jul 21, 18:10 UTC
Last known position
Country allocation
The ICAO 24-bit address 040185 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 11 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SKK022 | Skylink Aviation | 10 | 2026-07-21 |
| SKK068 | - | 6 | 2026-06-06 |
| SKK064 | - | 6 | 2026-06-01 |
| SKK023 | - | 6 | 2026-07-16 |
| SKK069 | Skylink Aviation | 4 | 2026-06-07 |
| SKK065 | - | 4 | 2026-04-28 |
| SKK051 | - | 3 | 2026-07-07 |
| SKK050 | - | 3 | 2026-07-06 |
| SKK077 | - | 2 | 2026-06-20 |
| SKK076 | - | 1 | 2026-06-19 |
| SKK038 | Skylink Aviation | 1 | 2026-05-19 |
Recent flights last 47
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-21 | SKK022 | FNA → BJL | Jul 21, 17:40 UTC | Jul 21, 18:10 UTC | 30m |
| 2026-07-16 | SKK023 | - | Jul 16, 06:40 UTC | Jul 16, 07:10 UTC | 30m |
| 2026-07-15 | SKK022 | - | Jul 15, 18:05 UTC | Jul 15, 18:30 UTC | 25m |
| 2026-07-14 | SKK023 | - | Jul 14, 06:20 UTC | Jul 14, 06:45 UTC | 25m |
| 2026-07-13 | SKK022 | - | Jul 13, 17:55 UTC | Jul 13, 18:20 UTC | 25m |
| 2026-07-09 | SKK023 | - | Jul 9, 06:25 UTC | Jul 9, 06:50 UTC | 25m |
| 2026-07-08 | SKK022 | - | Jul 8, 18:00 UTC | Jul 8, 18:30 UTC | 30m |
| 2026-07-07 | SKK051 | - | Jul 7, 09:25 UTC | Jul 7, 10:00 UTC | 35m |
| 2026-07-06 | SKK050 | - | Jul 6, 16:00 UTC | Jul 6, 16:40 UTC | 40m |
| 2026-07-01 | SKK022 | - | Jul 1, 17:40 UTC | Jul 1, 18:05 UTC | 25m |
| 2026-06-30 | SKK023 | - | Jun 30, 06:30 UTC | Jun 30, 06:40 UTC | 10m |
| 2026-06-29 | SKK022 | - | Jun 29, 18:30 UTC | Jun 29, 18:49 UTC | 20m |
| 2026-06-24 | SKK023 | - | Jun 24, 06:15 UTC | Jun 24, 06:45 UTC | 30m |
| 2026-06-23 | SKK022 | - | Jun 23, 17:39 UTC | Jun 23, 17:59 UTC | 20m |
| 2026-06-20 | SKK077 | - | Jun 20, 08:09 UTC | Jun 20, 08:44 UTC | 35m |
| 2026-06-19 | SKK077 | - | Jun 19, 17:34 UTC | Jun 20, 06:54 UTC | 13h 20m |
| 2026-06-19 | SKK076 | - | Jun 19, 15:39 UTC | Jun 19, 16:19 UTC | 40m |
| 2026-06-07 | SKK069 | SSG → LFW | Jun 7, 07:55 UTC | Jun 7, 08:10 UTC | 15m |
| 2026-06-06 | SKK068 | - | Jun 6, 17:10 UTC | Jun 6, 17:40 UTC | 30m |
| 2026-06-01 | SKK064 | - | Jun 1, 16:50 UTC | Jun 1, 17:05 UTC | 15m |
| 2026-06-01 | SKK064 | - | Jun 1, 15:35 UTC | Jun 1, 16:10 UTC | 35m |
| 2026-05-30 | SKK068 | - | May 30, 17:10 UTC | May 30, 17:40 UTC | 30m |
| 2026-05-28 | SKK022 | FNA → BJL | May 28, 18:25 UTC | May 28, 18:35 UTC | 10m |
| 2026-05-21 | - | - | May 21, 06:25 UTC | May 21, 06:35 UTC | 10m |
| 2026-05-20 | SKK022 | FNA → BJL | May 20, 18:00 UTC | May 20, 18:25 UTC | 25m |
| 2026-05-19 | SKK038 | LFW → DLA | May 19, 16:35 UTC | May 19, 16:50 UTC | 15m |
| 2026-05-15 | SKK069 | SSG → LFW | May 15, 07:40 UTC | May 15, 08:00 UTC | 20m |
| 2026-05-14 | SKK068 | - | May 14, 17:15 UTC | May 14, 17:35 UTC | 20m |
| 2026-05-14 | SKK051 | DSS → COO | May 14, 09:20 UTC | May 14, 09:55 UTC | 35m |
| 2026-05-13 | SKK050 | LFW → DSS | May 13, 17:55 UTC | May 13, 18:35 UTC | 40m |
| 2026-05-10 | SKK069 | SSG → LFW | May 10, 07:45 UTC | May 10, 08:05 UTC | 20m |
| 2026-05-09 | SKK068 | - | May 9, 17:20 UTC | May 9, 17:40 UTC | 20m |
| 2026-04-28 | SKK065 | - | Apr 28, 09:00 UTC | Apr 28, 09:25 UTC | 25m |
| 2026-04-28 | SKK065 | - | Apr 28, 07:55 UTC | Apr 28, 08:10 UTC | 15m |
| 2026-04-27 | SKK064 | - | Apr 27, 16:10 UTC | Apr 27, 16:20 UTC | 10m |
| 2026-04-27 | SKK064 | - | Apr 27, 14:50 UTC | Apr 27, 15:20 UTC | 30m |
| 2026-04-21 | SKK068 | - | Apr 21, 17:05 UTC | Apr 21, 17:30 UTC | 25m |
| 2026-04-20 | SKK051 | DSS → COO | Apr 20, 10:05 UTC | Apr 20, 10:35 UTC | 30m |
| 2026-04-19 | SKK050 | LFW → DSS | Apr 19, 16:10 UTC | Apr 19, 16:50 UTC | 40m |
| 2026-04-19 | SKK069 | SSG → LFW | Apr 19, 07:55 UTC | Apr 19, 08:15 UTC | 20m |
| 2026-04-18 | SKK068 | - | Apr 18, 17:05 UTC | Apr 18, 17:40 UTC | 35m |
| 2026-04-15 | SKK023 | BJL → FNA | Apr 15, 06:25 UTC | Apr 15, 06:40 UTC | 15m |
| 2026-04-14 | SKK022 | FNA → BJL | Apr 14, 17:50 UTC | Apr 14, 18:10 UTC | 20m |
| 2026-04-14 | SKK065 | - | Apr 14, 09:10 UTC | Apr 14, 09:25 UTC | 15m |
| 2026-04-14 | SKK065 | - | Apr 14, 07:45 UTC | Apr 14, 08:05 UTC | 20m |
| 2026-04-13 | SKK064 | - | Apr 13, 16:40 UTC | Apr 13, 17:00 UTC | 20m |
| 2026-04-13 | SKK064 | - | Apr 13, 15:10 UTC | Apr 13, 15:40 UTC | 30m |
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-AXI page for operator, model, and routing details .