sensors Mode-S transponder
7816CC
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-20AV · BOEING 767-300
- Hex
- 7816CC
- Octal
- 36013314
- Decimal
- 7,870,156
- Country
- CN
- Tail
- B-20AV
- Type
- B763
- Flights observed
- 25
- Distinct callsigns
- 18
- Country
- CN
- Last broadcast
- 3d ago
Last known position
Country allocation
The ICAO 24-bit address 7816CC falls within the block assigned to China (CN) by ICAO Annex 10, Volume III. Every aircraft registered in China 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 18 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CSS7635 | SF Airlines | 3 | 2026-06-07 |
| CSS6801 | SF Airlines | 2 | 2026-05-27 |
| CSS258 | - | 2 | 2026-06-30 |
| CSS257 | - | 2 | 2026-06-30 |
| CSS173 | - | 2 | 2026-05-21 |
| CSS160 | SF Airlines | 2 | 2026-05-20 |
| CSS7636 | - | 1 | 2026-06-30 |
| CSS7103 | SF Airlines | 1 | 2026-06-07 |
| CSS6804 | SF Airlines | 1 | 2026-05-26 |
| CSS6802 | SF Airlines | 1 | 2026-05-13 |
| CSS358 | SF Airlines | 1 | 2026-05-27 |
| CSS357 | SF Airlines | 1 | 2026-05-26 |
| CSS3077 | - | 1 | 2026-06-19 |
| CSS256 | - | 1 | 2026-06-28 |
| CSS255 | - | 1 | 2026-06-27 |
| CSS239 | SF Airlines | 1 | 2026-05-20 |
| CSS174 | - | 1 | 2026-05-22 |
| CSS163 | SF Airlines | 1 | 2026-05-19 |
Recent flights last 25
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-30 | CSS7636 | - | Jun 30, 21:50 UTC | Jul 1, 16:10 UTC | 18h 20m |
| 2026-06-30 | CSS258 | - | Jun 30, 07:45 UTC | Jun 30, 22:00 UTC | 14h 15m |
| 2026-06-30 | CSS257 | - | Jun 30, 03:55 UTC | Jun 30, 05:10 UTC | 1h 15m |
| 2026-06-28 | CSS256 | - | Jun 28, 14:09 UTC | Jun 28, 15:14 UTC | 1h 5m |
| 2026-06-28 | CSS258 | DAC → DAC | Jun 28, 04:40 UTC | Jun 28, 12:29 UTC | 7h 50m |
| 2026-06-27 | CSS257 | DAC → DAC | Jun 27, 08:55 UTC | Jun 27, 18:24 UTC | 9h 30m |
| 2026-06-27 | CSS255 | - | Jun 27, 04:49 UTC | Jun 27, 07:30 UTC | 2h 40m |
| 2026-06-19 | CSS3077 | - | Jun 19, 14:34 UTC | Jun 19, 14:44 UTC | 10m |
| 2026-06-07 | CSS7635 | SHE → EHU | Jun 7, 21:50 UTC | Jun 8, 16:20 UTC | 18h 30m |
| 2026-06-07 | CSS7635 | SHE → EHU | Jun 7, 17:05 UTC | Jun 8, 16:20 UTC | 23h 15m |
| 2026-06-07 | CSS7103 | PEK → EHU | Jun 7, 16:45 UTC | Jun 7, 22:00 UTC | 5h 15m |
| 2026-05-27 | CSS6801 | SZX → EHU | May 27, 17:40 UTC | May 27, 17:55 UTC | 15m |
| 2026-05-27 | CSS358 | TPE → SZX | May 27, 02:39 UTC | May 27, 03:54 UTC | 1h 15m |
| 2026-05-26 | CSS357 | SZX → TPE | May 26, 22:29 UTC | May 26, 22:44 UTC | 15m |
| 2026-05-26 | CSS6804 | EHU → SZX | May 26, 20:45 UTC | May 26, 21:00 UTC | 15m |
| 2026-05-25 | CSS7635 | SHE → EHU | May 25, 22:00 UTC | May 26, 16:20 UTC | 18h 20m |
| 2026-05-22 | CSS174 | - | May 22, 14:10 UTC | May 22, 16:30 UTC | 2h 20m |
| 2026-05-21 | CSS173 | - | May 21, 21:25 UTC | May 21, 21:50 UTC | 25m |
| 2026-05-21 | CSS173 | - | May 21, 15:50 UTC | May 21, 18:30 UTC | 2h 40m |
| 2026-05-20 | CSS160 | DEL → EHU | May 20, 17:05 UTC | May 21, 16:25 UTC | 23h 20m |
| 2026-05-20 | CSS160 | DEL → EHU | May 20, 16:05 UTC | May 20, 18:00 UTC | 1h 55m |
| 2026-05-20 | CSS239 | ZUH → DEL | May 20, 02:40 UTC | May 20, 14:30 UTC | 11h 51m |
| 2026-05-19 | CSS163 | EHU → DEL | May 19, 21:40 UTC | May 19, 23:55 UTC | 2h 15m |
| 2026-05-14 | CSS6801 | SZX → EHU | May 14, 16:30 UTC | May 14, 16:40 UTC | 10m |
| 2026-05-13 | CSS6802 | EHU → SZX | May 13, 22:00 UTC | May 13, 22:15 UTC | 15m |
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 B-20AV page for operator, model, and routing details .