sensors Mode-S transponder
78184B
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-30CQ · AIRBUS A-320
- Hex
- 78184B
- Octal
- 36014113
- Decimal
- 7,870,539
- Country
- CN
- Tail
- B-30CQ
- Type
- A320
- Flights observed
- 36
- Distinct callsigns
- 16
- Country
- CN
- Last broadcast
- 8h ago
Last known position
Country allocation
The ICAO 24-bit address 78184B 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 16 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| UEA2713 | United Eagle Airlines | 6 | 2026-06-04 |
| UEA1848 | - | 5 | 2026-06-08 |
| UEA2817 | United Eagle Airlines | 3 | 2026-06-06 |
| UEA2264 | United Eagle Airlines | 3 | 2026-05-28 |
| UEA1858 | United Eagle Airlines | 3 | 2026-06-04 |
| UEA1821 | - | 3 | 2026-05-09 |
| UEA2714 | United Eagle Airlines | 2 | 2026-06-04 |
| UEA2263 | United Eagle Airlines | 2 | 2026-05-28 |
| UEA2818 | United Eagle Airlines | 1 | 2026-04-25 |
| UEA2757 | United Eagle Airlines | 1 | 2026-05-19 |
| UEA2218 | United Eagle Airlines | 1 | 2026-05-26 |
| UEA1873 | United Eagle Airlines | 1 | 2026-06-09 |
| UEA1869 | - | 1 | 2026-04-28 |
| UEA1847 | - | 1 | 2026-05-03 |
| UEA1834 | United Eagle Airlines | 1 | 2026-05-17 |
| UEA1822 | - | 1 | 2026-05-07 |
Recent flights last 36
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-09 | UEA1873 | CSX → SHE | Jun 9, 13:40 UTC | Jun 9, 13:55 UTC | 15m |
| 2026-06-08 | UEA1848 | - | Jun 8, 00:35 UTC | Jun 8, 00:45 UTC | 10m |
| 2026-06-07 | UEA1848 | - | Jun 7, 00:39 UTC | Jun 7, 00:49 UTC | 10m |
| 2026-06-06 | UEA2817 | SHE → WUT | Jun 6, 00:35 UTC | Jun 6, 00:50 UTC | 15m |
| 2026-06-04 | UEA1858 | WUH → SHE | Jun 4, 13:15 UTC | Jun 5, 12:15 UTC | 23h 0m |
| 2026-06-04 | UEA2714 | SYX → HFE | Jun 4, 08:35 UTC | Jun 4, 13:15 UTC | 4h 40m |
| 2026-06-04 | UEA2713 | SHE → HFE | Jun 4, 01:45 UTC | Jun 4, 06:25 UTC | 4h 40m |
| 2026-05-31 | UEA2714 | SYX → HFE | May 31, 09:10 UTC | May 31, 09:50 UTC | 40m |
| 2026-05-28 | UEA2263 | HAK → HGH | May 28, 10:30 UTC | May 29, 07:45 UTC | 21h 15m |
| 2026-05-28 | UEA2264 | HGH → HAK | May 28, 06:20 UTC | May 28, 10:45 UTC | 4h 25m |
| 2026-05-27 | UEA2263 | HAK → HGH | May 27, 09:50 UTC | May 28, 06:35 UTC | 20h 45m |
| 2026-05-27 | UEA2264 | HGH → HAK | May 27, 06:49 UTC | May 28, 06:35 UTC | 23h 45m |
| 2026-05-27 | UEA2264 | HGH → HAK | May 27, 06:29 UTC | May 27, 10:05 UTC | 3h 35m |
| 2026-05-26 | UEA2218 | SZX → CTU | May 26, 03:35 UTC | May 26, 03:50 UTC | 15m |
| 2026-05-26 | - | - | May 26, 01:49 UTC | May 26, 02:00 UTC | 10m |
| 2026-05-22 | UEA1848 | - | May 22, 00:30 UTC | May 22, 00:45 UTC | 15m |
| 2026-05-21 | UEA2817 | SHE → WUT | May 21, 00:25 UTC | May 21, 00:35 UTC | 10m |
| 2026-05-20 | UEA1858 | WUH → SHE | May 20, 12:20 UTC | May 20, 12:40 UTC | 20m |
| 2026-05-19 | UEA2757 | CTU → SHE | May 19, 14:10 UTC | May 20, 12:40 UTC | 22h 31m |
| 2026-05-17 | UEA1834 | TSN → CTU | May 17, 13:05 UTC | May 17, 13:25 UTC | 20m |
| 2026-05-09 | UEA1821 | - | May 9, 12:50 UTC | May 9, 15:00 UTC | 2h 10m |
| 2026-05-07 | UEA1822 | - | May 7, 12:45 UTC | May 7, 15:05 UTC | 2h 20m |
| 2026-05-03 | UEA1847 | - | May 3, 09:45 UTC | May 3, 09:55 UTC | 10m |
| 2026-05-03 | UEA1848 | - | May 3, 00:50 UTC | May 3, 01:05 UTC | 15m |
| 2026-05-02 | UEA2713 | SHE → HFE | May 2, 01:45 UTC | May 2, 13:10 UTC | 11h 25m |
| 2026-04-28 | UEA1869 | - | Apr 28, 13:50 UTC | Apr 29, 06:19 UTC | 16h 30m |
| 2026-04-28 | UEA2713 | SHE → HFE | Apr 28, 05:50 UTC | Apr 29, 01:40 UTC | 19h 50m |
| 2026-04-28 | UEA2713 | SHE → HFE | Apr 28, 01:40 UTC | Apr 28, 13:55 UTC | 12h 15m |
| 2026-04-27 | UEA2713 | SHE → HFE | Apr 27, 09:45 UTC | Apr 28, 06:10 UTC | 20h 25m |
| 2026-04-27 | UEA1848 | - | Apr 27, 00:55 UTC | Apr 27, 01:10 UTC | 15m |
| 2026-04-26 | UEA1858 | WUH → SHE | Apr 26, 13:00 UTC | Apr 26, 13:10 UTC | 10m |
| 2026-04-25 | UEA2818 | WUT → SHE | Apr 25, 09:45 UTC | Apr 25, 09:55 UTC | 10m |
| 2026-04-25 | UEA2817 | SHE → WUT | Apr 25, 00:30 UTC | Apr 25, 00:40 UTC | 10m |
| 2026-04-22 | UEA2713 | SHE → HFE | Apr 22, 01:50 UTC | Apr 22, 13:25 UTC | 11h 35m |
| 2026-04-16 | UEA1821 | - | Apr 16, 13:15 UTC | Apr 16, 13:30 UTC | 15m |
| 2026-04-14 | UEA1821 | - | Apr 14, 13:45 UTC | Apr 14, 14:00 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-30CQ page for operator, model, and routing details .