sensors Mode-S transponder
7BD003
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-2829 · BOEING 757-200
- Hex
- 7BD003
- Octal
- 36750003
- Decimal
- 8,114,179
- Country
- CN
- Tail
- B-2829
- Type
- B752
- Flights observed
- 42
- Distinct callsigns
- 19
- Country
- CN
- Last broadcast
- 15h ago
Last known position
Country allocation
The ICAO 24-bit address 7BD003 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 19 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CSS7410 | SF Airlines | 5 | 2026-06-01 |
| CSS313 | SF Airlines | 4 | 2026-05-27 |
| CSS141 | - | 4 | 2026-06-27 |
| CSS7110 | SF Airlines | 3 | 2026-05-23 |
| CSS7107 | - | 3 | 2026-05-21 |
| CSS314 | - | 3 | 2026-05-27 |
| CSS280 | - | 3 | 2026-06-24 |
| CSS142 | - | 3 | 2026-06-24 |
| CSS7278 | - | 2 | 2026-06-04 |
| CSS6812 | SF Airlines | 2 | 2026-05-25 |
| CSS279 | - | 2 | 2026-06-24 |
| CSS7277 | - | 1 | 2026-06-03 |
| CSS7119 | SF Airlines | 1 | 2026-05-18 |
| CSS7109 | SF Airlines | 1 | 2026-05-23 |
| CSS7102 | SF Airlines | 1 | 2026-06-10 |
| CSS6840 | SF Airlines | 1 | 2026-06-04 |
| CSS6839 | SF Airlines | 1 | 2026-06-03 |
| CSS264 | - | 1 | 2026-05-14 |
| CSS263 | - | 1 | 2026-05-14 |
Recent flights last 42
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-27 | CSS141 | - | Jun 27, 23:10 UTC | Jun 27, 23:34 UTC | 25m |
| 2026-06-24 | CSS142 | - | Jun 24, 14:55 UTC | Jun 24, 15:14 UTC | 20m |
| 2026-06-24 | CSS279 | - | Jun 24, 06:10 UTC | Jun 24, 06:29 UTC | 20m |
| 2026-06-24 | CSS280 | - | Jun 24, 03:00 UTC | Jun 24, 03:15 UTC | 15m |
| 2026-06-23 | CSS141 | - | Jun 23, 23:10 UTC | Jun 23, 23:29 UTC | 20m |
| 2026-06-10 | CSS7102 | EHU → PEK | Jun 10, 21:30 UTC | Jun 10, 21:40 UTC | 10m |
| 2026-06-09 | CSS142 | ICN → EHU | Jun 9, 14:50 UTC | Jun 9, 15:15 UTC | 25m |
| 2026-06-09 | CSS279 | YNT → ICN | Jun 9, 06:05 UTC | Jun 9, 06:30 UTC | 25m |
| 2026-06-09 | CSS280 | ICN → YNT | Jun 9, 02:55 UTC | Jun 9, 03:10 UTC | 15m |
| 2026-06-08 | CSS141 | EHU → ICN | Jun 8, 23:05 UTC | Jun 8, 23:30 UTC | 25m |
| 2026-06-04 | CSS7278 | - | Jun 4, 20:30 UTC | Jun 4, 20:40 UTC | 10m |
| 2026-06-04 | CSS6840 | WUX → SZX | Jun 4, 18:35 UTC | Jun 4, 18:50 UTC | 15m |
| 2026-06-03 | CSS6839 | SZX → WUX | Jun 3, 22:00 UTC | Jun 3, 22:10 UTC | 10m |
| 2026-06-03 | CSS7277 | - | Jun 3, 19:00 UTC | Jun 3, 19:40 UTC | 40m |
| 2026-06-02 | CSS7278 | - | Jun 2, 20:35 UTC | Jun 2, 20:45 UTC | 10m |
| 2026-06-01 | CSS7410 | SZX → CTU | Jun 1, 19:15 UTC | Jun 1, 19:25 UTC | 10m |
| 2026-05-30 | CSS7410 | SZX → CTU | May 30, 20:15 UTC | May 30, 20:30 UTC | 15m |
| 2026-05-29 | CSS7410 | SZX → CTU | May 29, 20:00 UTC | May 29, 20:15 UTC | 15m |
| 2026-05-28 | CSS7410 | SZX → CTU | May 28, 19:25 UTC | May 28, 19:35 UTC | 10m |
| 2026-05-27 | CSS7410 | SZX → CTU | May 27, 19:25 UTC | May 27, 19:35 UTC | 10m |
| 2026-05-27 | CSS314 | - | May 27, 09:10 UTC | May 27, 09:45 UTC | 35m |
| 2026-05-27 | CSS313 | SZX → BKK | May 27, 06:25 UTC | May 27, 07:10 UTC | 45m |
| 2026-05-27 | CSS313 | SZX → BKK | May 27, 04:49 UTC | May 27, 05:04 UTC | 15m |
| 2026-05-26 | CSS314 | - | May 26, 10:14 UTC | May 26, 10:29 UTC | 15m |
| 2026-05-26 | CSS314 | - | May 26, 08:10 UTC | May 26, 08:45 UTC | 35m |
| 2026-05-26 | CSS313 | SZX → BKK | May 26, 04:39 UTC | May 26, 05:20 UTC | 40m |
| 2026-05-26 | CSS313 | SZX → BKK | May 26, 03:05 UTC | May 26, 03:25 UTC | 20m |
| 2026-05-25 | CSS6812 | PEK → SZX | May 25, 23:04 UTC | May 25, 23:14 UTC | 10m |
| 2026-05-25 | CSS6812 | PEK → SZX | May 25, 20:34 UTC | May 25, 20:55 UTC | 20m |
| 2026-05-23 | CSS7110 | SZX → PEK | May 23, 21:35 UTC | May 23, 21:45 UTC | 10m |
| 2026-05-23 | CSS7109 | PEK → SZX | May 23, 19:00 UTC | May 23, 19:20 UTC | 20m |
| 2026-05-21 | CSS7110 | SZX → PEK | May 21, 22:00 UTC | May 21, 22:10 UTC | 10m |
| 2026-05-21 | CSS7107 | - | May 21, 16:35 UTC | May 21, 16:50 UTC | 15m |
| 2026-05-21 | CSS7110 | SZX → PEK | May 21, 00:15 UTC | May 21, 00:25 UTC | 10m |
| 2026-05-20 | CSS7107 | - | May 20, 22:20 UTC | May 20, 22:30 UTC | 10m |
| 2026-05-20 | CSS7107 | - | May 20, 19:40 UTC | May 20, 20:00 UTC | 20m |
| 2026-05-18 | CSS7119 | PEK → HGH | May 18, 16:50 UTC | May 18, 17:05 UTC | 15m |
| 2026-05-14 | CSS264 | - | May 14, 12:15 UTC | May 14, 12:55 UTC | 40m |
| 2026-05-14 | CSS263 | - | May 14, 10:15 UTC | May 14, 10:55 UTC | 40m |
| 2026-04-30 | CSS142 | ICN → EHU | Apr 30, 14:50 UTC | Apr 30, 15:05 UTC | 15m |
| 2026-04-30 | CSS280 | ICN → YNT | Apr 30, 02:55 UTC | Apr 30, 03:10 UTC | 15m |
| 2026-04-29 | CSS141 | EHU → ICN | Apr 29, 23:25 UTC | Apr 29, 23:45 UTC | 20m |
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-2829 page for operator, model, and routing details .