sensors Mode-S transponder
899128
ICAO 24-bit transponder address · allocated to Taiwan
Currently assigned to B-18909 · AIRBUS A-350-900
- Hex
- 899128
- Octal
- 42310450
- Decimal
- 9,015,592
- Country
- TW
- Tail
- B-18909
- Type
- A359
- Flights observed
- 78
- Distinct callsigns
- 20
- Country
- TW
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address 899128 falls within the block assigned to Taiwan (TW) by ICAO Annex 10, Volume III. Every aircraft registered in Taiwan 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 20 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CAL021 | China Airlines | 8 | 2026-05-26 |
| CAL761 | China Airlines | 6 | 2026-04-19 |
| CAL753 | China Airlines | 6 | 2026-04-29 |
| CAL062 | China Airlines | 6 | 2026-04-28 |
| CAL061 | China Airlines | 5 | 2026-05-29 |
| CAL762 | China Airlines | 4 | 2026-04-19 |
| CAL073 | China Airlines | 4 | 2026-04-23 |
| CAL754 | China Airlines | 3 | 2026-04-29 |
| CAL052 | China Airlines | 3 | 2026-05-28 |
| CAL051 | China Airlines | 3 | 2026-05-27 |
| CAL022 | China Airlines | 3 | 2026-05-25 |
| CAL504 | China Airlines | 2 | 2026-05-21 |
| CAL502 | China Airlines | 2 | 2026-05-29 |
| CAL501 | China Airlines | 2 | 2026-05-23 |
| CAL074 | China Airlines | 2 | 2026-04-24 |
| CAL064 | China Airlines | 2 | 2026-04-30 |
| CAL063 | China Airlines | 2 | 2026-04-29 |
| CAL054 | China Airlines | 2 | 2026-05-22 |
| CAL053 | China Airlines | 2 | 2026-05-22 |
| CAL832 | China Airlines | 1 | 2026-05-20 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CAL061 | TPE → FRA | May 29, 14:55 UTC | May 29, 20:55 UTC | 6h 0m |
| 2026-05-29 | CAL502 | PVG → TPE | May 29, 01:05 UTC | May 29, 05:50 UTC | 4h 45m |
| 2026-05-28 | CAL052 | SYD → TPE | May 28, 12:15 UTC | May 28, 20:50 UTC | 8h 35m |
| 2026-05-27 | CAL051 | TPE → SYD | May 27, 15:45 UTC | May 28, 00:20 UTC | 8h 35m |
| 2026-05-26 | CAL021 | SEA → TPE | May 26, 19:30 UTC | May 26, 19:55 UTC | 25m |
| 2026-05-26 | CAL021 | SEA → TPE | May 26, 08:04 UTC | May 26, 18:19 UTC | 10h 15m |
| 2026-05-25 | CAL022 | TPE → SEA | May 25, 16:00 UTC | May 26, 02:35 UTC | 10h 34m |
| 2026-05-25 | CAL105 | NRT → TPE | May 25, 09:30 UTC | May 25, 12:20 UTC | 2h 50m |
| 2026-05-25 | CAL104 | TPE → NRT | May 25, 04:55 UTC | May 25, 07:45 UTC | 2h 50m |
| 2026-05-24 | CAL052 | SYD → TPE | May 24, 12:20 UTC | May 24, 21:50 UTC | 9h 30m |
| 2026-05-23 | CAL051 | TPE → SYD | May 23, 15:55 UTC | May 24, 00:10 UTC | 8h 16m |
| 2026-05-23 | CAL501 | TPE → PVG | May 23, 01:25 UTC | May 23, 06:00 UTC | 4h 34m |
| 2026-05-22 | CAL054 | BNE → TPE | May 22, 13:05 UTC | May 22, 21:30 UTC | 8h 25m |
| 2026-05-22 | CAL054 | BNE → TPE | May 22, 07:40 UTC | May 22, 10:45 UTC | 3h 5m |
| 2026-05-22 | CAL053 | TPE → BNE | May 22, 03:05 UTC | May 22, 05:50 UTC | 2h 45m |
| 2026-05-21 | CAL053 | TPE → BNE | May 21, 16:25 UTC | May 22, 00:25 UTC | 8h 0m |
| 2026-05-21 | CAL504 | PVG → TPE | May 21, 08:55 UTC | May 21, 13:25 UTC | 4h 30m |
| 2026-05-21 | CAL502 | PVG → TPE | May 21, 05:20 UTC | May 21, 05:55 UTC | 35m |
| 2026-05-21 | CAL501 | TPE → PVG | May 21, 01:15 UTC | May 21, 01:35 UTC | 20m |
| 2026-05-20 | CAL832 | BKK → TPE | May 20, 06:50 UTC | May 20, 10:15 UTC | 3h 25m |
| 2026-05-20 | CAL831 | TPE → BKK | May 20, 02:05 UTC | May 20, 05:15 UTC | 3h 11m |
| 2026-04-30 | CAL064 | VIE → TPE | Apr 30, 09:35 UTC | Apr 30, 20:40 UTC | 11h 5m |
| 2026-04-29 | CAL063 | TPE → VIE | Apr 29, 16:10 UTC | Apr 30, 05:30 UTC | 13h 19m |
| 2026-04-29 | CAL754 | SIN → TPE | Apr 29, 09:50 UTC | Apr 29, 11:05 UTC | 1h 15m |
| 2026-04-29 | CAL753 | TPE → SIN | Apr 29, 04:15 UTC | Apr 29, 05:00 UTC | 45m |
| 2026-04-29 | CAL753 | TPE → SIN | Apr 29, 00:34 UTC | Apr 29, 01:40 UTC | 1h 5m |
| 2026-04-28 | CAL062 | FRA → TPE | Apr 28, 09:30 UTC | Apr 28, 21:25 UTC | 11h 55m |
| 2026-04-27 | CAL061 | TPE → FRA | Apr 27, 15:50 UTC | Apr 28, 06:05 UTC | 14h 15m |
| 2026-04-27 | CAL754 | SIN → TPE | Apr 27, 09:10 UTC | Apr 27, 10:20 UTC | 1h 10m |
| 2026-04-27 | CAL753 | TPE → SIN | Apr 27, 04:00 UTC | Apr 27, 04:35 UTC | 35m |
| 2026-04-27 | CAL753 | TPE → SIN | Apr 27, 00:20 UTC | Apr 27, 01:25 UTC | 1h 5m |
| 2026-04-26 | CAL076 | FCO → TPE | Apr 26, 09:25 UTC | Apr 26, 12:55 UTC | 3h 30m |
| 2026-04-25 | CAL075 | TPE → FCO | Apr 25, 16:25 UTC | Apr 26, 06:25 UTC | 14h 0m |
| 2026-04-25 | CAL784 | SGN → TPE | Apr 25, 12:30 UTC | Apr 25, 13:40 UTC | 1h 10m |
| 2026-04-25 | CAL783 | TPE → SGN | Apr 25, 06:10 UTC | Apr 25, 07:20 UTC | 1h 10m |
| 2026-04-24 | CAL074 | AMS → TPE | Apr 24, 09:30 UTC | Apr 24, 21:55 UTC | 12h 25m |
| 2026-04-23 | CAL073 | TPE → AMS | Apr 23, 15:40 UTC | Apr 23, 22:30 UTC | 6h 49m |
| 2026-04-22 | CAL052 | SYD → TPE | Apr 22, 12:15 UTC | Apr 22, 21:05 UTC | 8h 50m |
| 2026-04-21 | CAL051 | TPE → SYD | Apr 21, 16:05 UTC | Apr 22, 00:50 UTC | 8h 45m |
| 2026-04-21 | CAL153 | KIX → TPE | Apr 21, 06:00 UTC | Apr 21, 08:15 UTC | 2h 15m |
| 2026-04-21 | CAL152 | TPE → KIX | Apr 21, 02:10 UTC | Apr 21, 02:50 UTC | 40m |
| 2026-04-20 | CAL064 | VIE → TPE | Apr 20, 09:30 UTC | Apr 20, 20:35 UTC | 11h 5m |
| 2026-04-19 | CAL063 | TPE → VIE | Apr 19, 16:20 UTC | Apr 20, 05:35 UTC | 13h 15m |
| 2026-04-19 | CAL762 | CGK → TPE | Apr 19, 09:45 UTC | Apr 19, 12:50 UTC | 3h 5m |
| 2026-04-19 | CAL761 | TPE → CGK | Apr 19, 06:20 UTC | Apr 19, 06:35 UTC | 15m |
| 2026-04-19 | CAL761 | TPE → CGK | Apr 19, 01:40 UTC | Apr 19, 04:50 UTC | 3h 10m |
| 2026-04-18 | CAL074 | AMS → TPE | Apr 18, 11:25 UTC | Apr 18, 23:45 UTC | 12h 20m |
| 2026-04-17 | CAL073 | TPE → AMS | Apr 17, 21:25 UTC | Apr 17, 22:40 UTC | 1h 15m |
| 2026-04-17 | CAL073 | TPE → AMS | Apr 17, 20:05 UTC | Apr 17, 21:20 UTC | 1h 15m |
| 2026-04-17 | CAL073 | TPE → AMS | Apr 17, 16:00 UTC | Apr 17, 17:15 UTC | 1h 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-18909 page for operator, model, and routing details .