sensors Mode-S transponder
78227D
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-32MH · AIRBUS A-320neo
- Hex
- 78227D
- Octal
- 36021175
- Decimal
- 7,873,149
- Country
- CN
- Tail
- B-32MH
- Type
- A20N
- Flights observed
- 29
- Distinct callsigns
- 15
- Country
- CN
- Last broadcast
- Jul 25, 05:40 UTC
Last known position
Country allocation
The ICAO 24-bit address 78227D 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 15 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| HXA4095 | - | 4 | 2026-07-20 |
| HXA4550 | - | 3 | 2026-07-04 |
| HXA4549 | - | 3 | 2026-07-04 |
| HXA4274 | - | 3 | 2026-07-16 |
| HXA4140 | China Express Airlines | 3 | 2026-07-25 |
| HXA4063 | - | 3 | 2026-07-13 |
| HXA4840 | China Express Airlines | 2 | 2026-07-23 |
| HXA4940 | China Express Airlines | 1 | 2026-06-03 |
| HXA4939 | China Express Airlines | 1 | 2026-06-03 |
| HXA4839 | China Express Airlines | 1 | 2026-05-02 |
| HXA4228 | - | 1 | 2026-04-18 |
| HXA4139 | China Express Airlines | 1 | 2026-07-25 |
| HXA4096 | - | 1 | 2026-04-17 |
| HXA2926 | - | 1 | 2026-06-30 |
| HXA2925 | - | 1 | 2026-06-30 |
Recent flights last 29
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | HXA4140 | SZX → HDG | Jul 25, 05:25 UTC | Jul 25, 05:40 UTC | 15m |
| 2026-07-25 | HXA4139 | HDG → SZX | Jul 25, 03:35 UTC | Jul 25, 03:45 UTC | 10m |
| 2026-07-23 | HXA4840 | SJW → TFU | Jul 23, 04:20 UTC | Jul 23, 04:30 UTC | 10m |
| 2026-07-20 | HXA4095 | - | Jul 20, 09:25 UTC | Jul 20, 12:25 UTC | 3h 0m |
| 2026-07-17 | HXA4095 | - | Jul 17, 09:10 UTC | Jul 17, 09:25 UTC | 15m |
| 2026-07-16 | HXA4274 | - | Jul 16, 11:54 UTC | Jul 16, 12:09 UTC | 15m |
| 2026-07-13 | HXA4063 | - | Jul 13, 23:55 UTC | Jul 14, 00:15 UTC | 20m |
| 2026-07-12 | HXA4063 | - | Jul 12, 23:55 UTC | Jul 13, 00:20 UTC | 25m |
| 2026-07-06 | HXA4063 | - | Jul 6, 00:00 UTC | Jul 6, 00:20 UTC | 20m |
| 2026-07-04 | HXA4550 | - | Jul 4, 03:55 UTC | Jul 4, 04:05 UTC | 10m |
| 2026-07-04 | HXA4549 | - | Jul 4, 02:20 UTC | Jul 4, 02:30 UTC | 10m |
| 2026-06-30 | HXA2926 | - | Jun 30, 07:10 UTC | Jun 30, 07:25 UTC | 15m |
| 2026-06-30 | HXA2925 | - | Jun 30, 02:40 UTC | Jun 30, 02:50 UTC | 10m |
| 2026-06-23 | HXA4840 | SJW → TFU | Jun 23, 04:19 UTC | Jun 23, 04:35 UTC | 15m |
| 2026-06-10 | HXA4095 | - | Jun 10, 09:30 UTC | Jun 10, 13:20 UTC | 3h 50m |
| 2026-06-03 | HXA4940 | SJW → TFU | Jun 3, 04:20 UTC | Jun 3, 04:35 UTC | 15m |
| 2026-06-03 | HXA4939 | TFU → SJW | Jun 3, 02:20 UTC | Jun 3, 02:35 UTC | 15m |
| 2026-05-05 | HXA4550 | - | May 5, 03:45 UTC | May 5, 04:00 UTC | 15m |
| 2026-05-05 | HXA4549 | - | May 5, 02:05 UTC | May 5, 02:20 UTC | 15m |
| 2026-05-02 | HXA4839 | SJW → NDG | May 2, 04:25 UTC | May 2, 04:40 UTC | 15m |
| 2026-04-28 | HXA4140 | SZX → HDG | Apr 28, 05:35 UTC | Apr 28, 05:50 UTC | 15m |
| 2026-04-25 | HXA4274 | ZUH → DYG | Apr 25, 11:25 UTC | Apr 25, 11:40 UTC | 15m |
| 2026-04-23 | HXA4550 | - | Apr 23, 03:45 UTC | Apr 23, 03:55 UTC | 10m |
| 2026-04-23 | HXA4549 | - | Apr 23, 02:00 UTC | Apr 23, 02:10 UTC | 10m |
| 2026-04-18 | HXA4228 | - | Apr 18, 14:30 UTC | Apr 19, 05:40 UTC | 15h 10m |
| 2026-04-17 | HXA4096 | - | Apr 17, 14:15 UTC | Apr 17, 14:30 UTC | 15m |
| 2026-04-17 | HXA4095 | - | Apr 17, 11:00 UTC | Apr 17, 11:15 UTC | 15m |
| 2026-04-16 | HXA4274 | - | Apr 16, 13:50 UTC | Apr 16, 14:05 UTC | 15m |
| 2026-04-14 | HXA4140 | SZX → HDG | Apr 14, 07:15 UTC | Apr 14, 07:30 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-32MH page for operator, model, and routing details .