sensors Mode-S transponder
040247
ICAO 24-bit transponder address · allocated to Ethiopia
Currently assigned to ET-BBD · BOEING 737 MAX 8
- Hex
- 040247
- Octal
- 01001107
- Decimal
- 262,727
- Country
- ET
- Tail
- ET-BBD
- Type
- B38M
- Flights observed
- 48
- Distinct callsigns
- 8
- Country
- ET
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 040247 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 8 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SKK077 | - | 15 | 2026-05-30 |
| SKK076 | - | 15 | 2026-05-29 |
| SKK014 | Skylink Aviation | 5 | 2026-05-28 |
| SKK065 | - | 4 | 2026-05-26 |
| SKK015 | Skylink Aviation | 3 | 2026-05-14 |
| SKK078 | Skylink Aviation | 2 | 2026-06-01 |
| SKK064 | - | 2 | 2026-05-25 |
| SKK079 | Skylink Aviation | 1 | 2026-04-25 |
Recent flights last 48
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-01 | SKK078 | LFW → NBO | Jun 1, 15:15 UTC | Jun 1, 15:25 UTC | 10m |
| 2026-05-31 | - | - | May 31, 15:05 UTC | May 31, 15:20 UTC | 15m |
| 2026-05-30 | SKK077 | - | May 30, 08:15 UTC | May 30, 08:55 UTC | 40m |
| 2026-05-30 | SKK077 | - | May 30, 06:25 UTC | May 30, 06:55 UTC | 30m |
| 2026-05-29 | SKK076 | - | May 29, 17:20 UTC | May 29, 17:55 UTC | 35m |
| 2026-05-29 | SKK076 | - | May 29, 07:15 UTC | May 29, 16:15 UTC | 9h 0m |
| 2026-05-28 | SKK014 | CKY → NKC | May 28, 17:05 UTC | May 29, 15:45 UTC | 22h 40m |
| 2026-05-28 | SKK014 | CKY → NKC | May 28, 08:15 UTC | May 29, 07:45 UTC | 23h 30m |
| 2026-05-28 | SKK077 | - | May 28, 06:20 UTC | May 28, 06:50 UTC | 30m |
| 2026-05-27 | SKK076 | - | May 27, 17:00 UTC | May 27, 17:35 UTC | 35m |
| 2026-05-27 | SKK076 | - | May 27, 15:10 UTC | May 27, 15:50 UTC | 40m |
| 2026-05-26 | SKK065 | - | May 26, 09:04 UTC | May 26, 09:25 UTC | 20m |
| 2026-05-26 | SKK065 | - | May 26, 07:49 UTC | May 26, 08:10 UTC | 20m |
| 2026-05-25 | SKK064 | - | May 25, 15:30 UTC | May 25, 16:00 UTC | 30m |
| 2026-05-21 | SKK014 | CKY → NKC | May 21, 17:55 UTC | May 22, 08:10 UTC | 14h 15m |
| 2026-05-21 | SKK014 | CKY → NKC | May 21, 09:50 UTC | May 22, 08:10 UTC | 22h 20m |
| 2026-05-21 | SKK077 | - | May 21, 09:15 UTC | May 22, 07:45 UTC | 22h 30m |
| 2026-05-21 | SKK077 | - | May 21, 07:00 UTC | May 21, 07:30 UTC | 30m |
| 2026-05-20 | SKK076 | - | May 20, 18:00 UTC | May 20, 18:35 UTC | 35m |
| 2026-05-20 | SKK076 | - | May 20, 16:10 UTC | May 20, 16:45 UTC | 35m |
| 2026-05-19 | SKK065 | - | May 19, 09:30 UTC | May 19, 09:55 UTC | 25m |
| 2026-05-19 | SKK065 | - | May 19, 08:25 UTC | May 19, 08:35 UTC | 10m |
| 2026-05-18 | SKK064 | - | May 18, 15:05 UTC | May 18, 15:35 UTC | 30m |
| 2026-05-14 | SKK015 | NKC → CKY | May 14, 18:20 UTC | May 15, 08:25 UTC | 14h 5m |
| 2026-05-14 | SKK077 | - | May 14, 08:50 UTC | May 15, 07:45 UTC | 22h 55m |
| 2026-05-13 | SKK077 | - | May 13, 17:20 UTC | May 14, 07:00 UTC | 13h 40m |
| 2026-05-13 | SKK076 | - | May 13, 15:35 UTC | May 13, 16:15 UTC | 40m |
| 2026-05-12 | SKK077 | - | May 12, 09:05 UTC | May 12, 09:25 UTC | 20m |
| 2026-05-11 | SKK077 | - | May 11, 17:25 UTC | May 12, 07:00 UTC | 13h 35m |
| 2026-05-11 | SKK076 | - | May 11, 15:35 UTC | May 11, 16:10 UTC | 35m |
| 2026-05-02 | SKK015 | NKC → CKY | May 2, 17:15 UTC | May 3, 08:10 UTC | 14h 54m |
| 2026-05-02 | SKK014 | CKY → NKC | May 2, 08:45 UTC | May 3, 07:45 UTC | 22h 59m |
| 2026-05-02 | SKK077 | - | May 2, 06:40 UTC | May 2, 07:10 UTC | 30m |
| 2026-05-01 | SKK076 | - | May 1, 18:05 UTC | May 1, 18:35 UTC | 30m |
| 2026-05-01 | SKK076 | - | May 1, 16:10 UTC | May 1, 16:55 UTC | 45m |
| 2026-04-30 | SKK077 | - | Apr 30, 08:50 UTC | Apr 30, 09:20 UTC | 30m |
| 2026-04-30 | SKK077 | - | Apr 30, 06:25 UTC | Apr 30, 06:50 UTC | 25m |
| 2026-04-29 | SKK076 | - | Apr 29, 17:35 UTC | Apr 29, 18:05 UTC | 30m |
| 2026-04-29 | SKK076 | - | Apr 29, 15:35 UTC | Apr 29, 16:10 UTC | 35m |
| 2026-04-25 | SKK079 | NBO → LFW | Apr 25, 10:20 UTC | Apr 25, 10:30 UTC | 10m |
| 2026-04-24 | SKK078 | - | Apr 24, 14:50 UTC | Apr 24, 15:10 UTC | 20m |
| 2026-04-23 | SKK077 | - | Apr 23, 08:55 UTC | Apr 23, 09:25 UTC | 30m |
| 2026-04-22 | SKK076 | - | Apr 22, 18:05 UTC | Apr 23, 07:01 UTC | 12h 56m |
| 2026-04-22 | SKK076 | - | Apr 22, 16:00 UTC | Apr 22, 16:40 UTC | 40m |
| 2026-04-17 | SKK015 | NKC → CKY | Apr 17, 07:30 UTC | Apr 17, 08:15 UTC | 45m |
| 2026-04-16 | SKK077 | - | Apr 16, 09:19 UTC | Apr 16, 09:45 UTC | 25m |
| 2026-04-16 | SKK077 | - | Apr 16, 06:29 UTC | Apr 16, 06:55 UTC | 25m |
| 2026-04-15 | SKK076 | - | Apr 15, 17:35 UTC | Apr 15, 18:05 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-BBD page for operator, model, and routing details .