sensors Mode-S transponder
7810EF
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-8879 · AIRBUS A-320
- Hex
- 7810EF
- Octal
- 36010357
- Decimal
- 7,868,655
- Country
- CN
- Tail
- B-8879
- Type
- A320
- Flights observed
- 27
- Distinct callsigns
- 19
- Country
- CN
- Last broadcast
- 6h ago
Last known position
Country allocation
The ICAO 24-bit address 7810EF 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 |
|---|---|---|---|
| UEA2757 | - | 2 | 2026-07-14 |
| UEA2720 | - | 2 | 2026-07-05 |
| UEA2713 | United Eagle Airlines | 2 | 2026-07-17 |
| UEA2303 | United Eagle Airlines | 2 | 2026-06-20 |
| UEA2264 | - | 2 | 2026-06-18 |
| UEA2249 | - | 2 | 2026-07-04 |
| UEA1860 | - | 2 | 2026-04-24 |
| UEA1821 | - | 2 | 2026-06-30 |
| UEA2714 | United Eagle Airlines | 1 | 2026-04-18 |
| UEA2449 | United Eagle Airlines | 1 | 2026-05-19 |
| UEA2442 | United Eagle Airlines | 1 | 2026-06-08 |
| UEA2288 | - | 1 | 2026-06-16 |
| UEA2287 | - | 1 | 2026-07-06 |
| UEA2263 | - | 1 | 2026-06-18 |
| UEA2244 | - | 1 | 2026-06-07 |
| UEA1859 | - | 1 | 2026-06-19 |
| UEA1858 | United Eagle Airlines | 1 | 2026-04-19 |
| UEA1848 | - | 1 | 2026-05-10 |
| UEA1822 | - | 1 | 2026-04-28 |
Recent flights last 27
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | UEA2713 | SHE → HFE | Jul 17, 14:00 UTC | Jul 18, 06:00 UTC | 16h 1m |
| 2026-07-14 | UEA2757 | - | Jul 14, 14:25 UTC | Jul 14, 14:45 UTC | 20m |
| 2026-07-07 | UEA2757 | - | Jul 7, 12:15 UTC | Jul 8, 07:55 UTC | 19h 40m |
| 2026-07-06 | UEA2287 | - | Jul 6, 03:30 UTC | Jul 6, 07:25 UTC | 3h 55m |
| 2026-07-05 | UEA2720 | - | Jul 5, 11:45 UTC | Jul 5, 12:00 UTC | 15m |
| 2026-07-04 | UEA2249 | - | Jul 4, 04:05 UTC | Jul 4, 04:20 UTC | 15m |
| 2026-07-03 | UEA2249 | - | Jul 3, 04:25 UTC | Jul 3, 04:45 UTC | 20m |
| 2026-06-30 | UEA1821 | - | Jun 30, 12:50 UTC | Jun 30, 14:55 UTC | 2h 5m |
| 2026-06-21 | UEA2720 | - | Jun 21, 13:54 UTC | Jun 21, 14:05 UTC | 10m |
| 2026-06-20 | UEA2303 | HFE → HRB | Jun 20, 05:59 UTC | Jun 20, 10:34 UTC | 4h 35m |
| 2026-06-19 | UEA2303 | HFE → HRB | Jun 19, 08:04 UTC | Jun 20, 06:14 UTC | 22h 10m |
| 2026-06-19 | UEA1859 | - | Jun 19, 05:49 UTC | Jun 19, 08:04 UTC | 2h 15m |
| 2026-06-18 | UEA2263 | - | Jun 18, 11:25 UTC | Jun 19, 08:04 UTC | 20h 39m |
| 2026-06-18 | UEA2264 | - | Jun 18, 08:30 UTC | Jun 19, 05:54 UTC | 21h 24m |
| 2026-06-16 | UEA2288 | - | Jun 16, 06:30 UTC | Jun 16, 07:05 UTC | 35m |
| 2026-06-08 | UEA2442 | CSX → SHE | Jun 8, 06:30 UTC | Jun 8, 06:40 UTC | 10m |
| 2026-06-07 | UEA2244 | - | Jun 7, 06:15 UTC | Jun 7, 06:40 UTC | 25m |
| 2026-05-19 | UEA2449 | TFU → HFE | May 19, 05:40 UTC | May 19, 10:20 UTC | 4h 40m |
| 2026-05-12 | UEA2713 | SHE → HFE | May 12, 06:00 UTC | May 12, 09:30 UTC | 3h 30m |
| 2026-05-10 | UEA1848 | - | May 10, 00:34 UTC | May 10, 00:49 UTC | 15m |
| 2026-04-28 | UEA1822 | - | Apr 28, 14:55 UTC | Apr 28, 15:05 UTC | 10m |
| 2026-04-24 | UEA1860 | - | Apr 24, 05:30 UTC | Apr 24, 08:40 UTC | 3h 10m |
| 2026-04-23 | UEA1860 | - | Apr 23, 11:55 UTC | Apr 24, 08:40 UTC | 20h 45m |
| 2026-04-23 | UEA2264 | HGH → HAK | Apr 23, 07:50 UTC | Apr 24, 05:35 UTC | 21h 44m |
| 2026-04-21 | UEA1821 | - | Apr 21, 12:50 UTC | Apr 22, 06:50 UTC | 18h 0m |
| 2026-04-19 | UEA1858 | WUH → SHE | Apr 19, 21:15 UTC | Apr 19, 21:30 UTC | 15m |
| 2026-04-18 | UEA2714 | SYX → HFE | Apr 18, 10:00 UTC | Apr 18, 14:20 UTC | 4h 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-8879 page for operator, model, and routing details .