sensors Mode-S transponder
04023D
ICAO 24-bit transponder address · allocated to Ethiopia
Currently assigned to ET-BAT · BOEING 737 MAX 8
- Hex
- 04023D
- Octal
- 01001075
- Decimal
- 262,717
- Country
- ET
- Tail
- ET-BAT
- Type
- B38M
- Flights observed
- 60
- Distinct callsigns
- 13
- Country
- ET
- Last broadcast
- 21h ago
Last known position
Country allocation
The ICAO 24-bit address 04023D 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 13 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SKK023 | - | 13 | 2026-07-11 |
| SKK051 | - | 9 | 2026-07-10 |
| SKK050 | - | 9 | 2026-07-09 |
| SKK014 | Skylink Aviation | 8 | 2026-06-11 |
| SKK022 | - | 7 | 2026-07-05 |
| SKK015 | Skylink Aviation | 4 | 2026-06-12 |
| SKK079 | - | 3 | 2026-07-13 |
| SKK076 | - | 2 | 2026-05-25 |
| SKKK050 | - | 1 | 2026-04-26 |
| SKK9204 | Skylink Aviation | 1 | 2026-04-27 |
| SKK22 | Skylink Aviation | 1 | 2026-05-31 |
| SKK078 | - | 1 | 2026-05-24 |
| SKK077 | - | 1 | 2026-05-26 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | SKK079 | - | Jul 13, 09:35 UTC | Jul 13, 09:45 UTC | 10m |
| 2026-07-11 | SKK023 | - | Jul 11, 06:15 UTC | Jul 11, 06:40 UTC | 25m |
| 2026-07-10 | SKK051 | - | Jul 10, 06:50 UTC | Jul 10, 07:25 UTC | 35m |
| 2026-07-09 | SKK050 | - | Jul 9, 17:30 UTC | Jul 9, 18:10 UTC | 40m |
| 2026-07-06 | SKK023 | - | Jul 6, 06:25 UTC | Jul 6, 06:45 UTC | 20m |
| 2026-07-05 | SKK022 | - | Jul 5, 17:55 UTC | Jul 5, 18:35 UTC | 40m |
| 2026-07-04 | SKK023 | - | Jul 4, 06:30 UTC | Jul 4, 06:50 UTC | 20m |
| 2026-06-29 | SKK023 | - | Jun 29, 06:24 UTC | Jun 29, 06:50 UTC | 25m |
| 2026-06-28 | SKK022 | - | Jun 28, 17:50 UTC | Jun 28, 18:10 UTC | 20m |
| 2026-06-22 | SKK023 | - | Jun 22, 06:29 UTC | Jun 22, 07:10 UTC | 40m |
| 2026-06-21 | SKK022 | - | Jun 21, 18:00 UTC | Jun 21, 18:35 UTC | 35m |
| 2026-06-20 | SKK023 | - | Jun 20, 06:35 UTC | Jun 20, 07:04 UTC | 30m |
| 2026-06-19 | SKK051 | - | Jun 19, 06:54 UTC | Jun 19, 18:14 UTC | 11h 20m |
| 2026-06-18 | SKK050 | LFW → DSS | Jun 18, 17:21 UTC | Jun 18, 18:00 UTC | 39m |
| 2026-06-13 | SKK023 | - | Jun 13, 06:30 UTC | Jun 13, 07:00 UTC | 30m |
| 2026-06-12 | SKK015 | NKC → CKY | Jun 12, 07:20 UTC | Jun 12, 18:40 UTC | 11h 20m |
| 2026-06-11 | SKK014 | CKY → NKC | Jun 11, 17:25 UTC | Jun 12, 08:05 UTC | 14h 41m |
| 2026-06-10 | SKK015 | NKC → CKY | Jun 10, 07:25 UTC | Jun 10, 08:00 UTC | 35m |
| 2026-06-09 | SKK014 | CKY → NKC | Jun 9, 18:10 UTC | Jun 9, 19:05 UTC | 55m |
| 2026-06-08 | SKK023 | BJL → FNA | Jun 8, 06:20 UTC | Jun 8, 06:30 UTC | 10m |
| 2026-06-06 | SKK079 | NBO → LFW | Jun 6, 10:34 UTC | Jun 6, 10:45 UTC | 10m |
| 2026-06-05 | SKK051 | DSS → COO | Jun 5, 06:45 UTC | Jun 5, 14:55 UTC | 8h 10m |
| 2026-06-04 | SKK050 | LFW → DSS | Jun 4, 17:40 UTC | Jun 4, 18:00 UTC | 20m |
| 2026-06-03 | SKK051 | DSS → COO | Jun 3, 06:50 UTC | Jun 3, 07:25 UTC | 35m |
| 2026-06-02 | SKK050 | LFW → DSS | Jun 2, 17:10 UTC | Jun 2, 17:55 UTC | 45m |
| 2026-05-31 | SKK22 | FNA → BJL | May 31, 18:10 UTC | May 31, 18:25 UTC | 15m |
| 2026-05-29 | SKK022 | FNA → BJL | May 29, 19:15 UTC | May 29, 19:25 UTC | 10m |
| 2026-05-26 | SKK014 | CKY → NKC | May 26, 17:50 UTC | May 27, 08:05 UTC | 14h 16m |
| 2026-05-26 | SKK014 | CKY → NKC | May 26, 09:19 UTC | May 27, 08:05 UTC | 22h 46m |
| 2026-05-26 | SKK014 | CKY → NKC | May 26, 08:59 UTC | May 27, 07:15 UTC | 22h 16m |
| 2026-05-26 | SKK077 | - | May 26, 06:39 UTC | May 26, 07:10 UTC | 30m |
| 2026-05-25 | SKK076 | - | May 25, 18:10 UTC | May 25, 18:40 UTC | 30m |
| 2026-05-25 | SKK076 | - | May 25, 10:20 UTC | May 25, 16:45 UTC | 6h 25m |
| 2026-05-24 | SKK078 | - | May 24, 14:30 UTC | May 24, 14:50 UTC | 20m |
| 2026-05-23 | SKK014 | CKY → NKC | May 23, 17:55 UTC | May 24, 08:05 UTC | 14h 10m |
| 2026-05-22 | SKK051 | DSS → COO | May 22, 07:05 UTC | May 22, 07:40 UTC | 35m |
| 2026-05-21 | SKK050 | LFW → DSS | May 21, 17:55 UTC | May 21, 18:40 UTC | 45m |
| 2026-05-17 | SKK015 | NKC → CKY | May 17, 07:30 UTC | May 17, 15:01 UTC | 7h 30m |
| 2026-05-16 | SKK015 | NKC → CKY | May 16, 17:35 UTC | May 17, 15:01 UTC | 21h 25m |
| 2026-05-15 | SKK051 | DSS → COO | May 15, 10:25 UTC | May 15, 11:00 UTC | 35m |
| 2026-05-14 | SKK050 | LFW → DSS | May 14, 21:45 UTC | May 14, 22:30 UTC | 45m |
| 2026-05-12 | SKK014 | CKY → NKC | May 12, 17:30 UTC | May 13, 08:10 UTC | 14h 40m |
| 2026-05-10 | SKK022 | FNA → BJL | May 10, 18:39 UTC | May 10, 19:00 UTC | 20m |
| 2026-05-09 | SKK023 | BJL → FNA | May 9, 06:10 UTC | May 9, 06:20 UTC | 10m |
| 2026-05-08 | SKK051 | DSS → COO | May 8, 06:45 UTC | May 8, 18:55 UTC | 12h 10m |
| 2026-05-07 | SKK050 | LFW → DSS | May 7, 18:10 UTC | May 7, 18:50 UTC | 40m |
| 2026-05-05 | SKK014 | CKY → NKC | May 5, 17:40 UTC | May 6, 08:10 UTC | 14h 30m |
| 2026-05-02 | SKK023 | BJL → FNA | May 2, 06:20 UTC | May 2, 06:45 UTC | 25m |
| 2026-05-01 | SKK051 | DSS → COO | May 1, 06:50 UTC | May 1, 18:45 UTC | 11h 55m |
| 2026-04-30 | SKK050 | LFW → DSS | Apr 30, 17:40 UTC | Apr 30, 18:20 UTC | 40m |
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-BAT page for operator, model, and routing details .