sensors Mode-S transponder
42450B
ICAO 24-bit transponder address · allocated to United Kingdom
Currently assigned to VQ-BCC · BOMBARDIER BD-700 Global 7000/7500
- Hex
- 42450B
- Octal
- 20442413
- Decimal
- 4,343,051
- Country
- GB
- Tail
- VQ-BCC
- Type
- GL7T
- Flights observed
- 26
- Distinct callsigns
- 1
- Country
- GB
- Last broadcast
- 3d ago
Last known position
Country allocation
The ICAO 24-bit address 42450B falls within the block assigned to United Kingdom (GB) by ICAO Annex 10, Volume III. Every aircraft registered in United Kingdom 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 1 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| VQBCC | - | 26 | 2026-06-19 |
Recent flights last 26
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-19 | VQBCC | EWR → BDL | Jun 19, 18:14 UTC | Jun 19, 18:44 UTC | 30m |
| 2026-06-19 | VQBCC | FTY → EWR | Jun 19, 15:54 UTC | Jun 19, 17:34 UTC | 1h 40m |
| 2026-06-18 | VQBCC | - | Jun 18, 11:00 UTC | Jun 18, 12:35 UTC | 1h 35m |
| 2026-06-16 | VQBCC | - | Jun 16, 12:35 UTC | Jun 16, 17:05 UTC | 4h 30m |
| 2026-06-13 | VQBCC | - | Jun 13, 14:15 UTC | Jun 13, 18:00 UTC | 3h 45m |
| 2026-06-10 | VQBCC | - | Jun 10, 18:35 UTC | Jun 10, 22:35 UTC | 4h 0m |
| 2026-06-08 | VQBCC | - | Jun 8, 16:15 UTC | Jun 8, 22:25 UTC | 6h 10m |
| 2026-06-08 | VQBCC | HKG → ANC | Jun 8, 06:15 UTC | Jun 8, 15:25 UTC | 9h 10m |
| 2026-06-06 | VQBCC | MAD → HKG | Jun 6, 15:05 UTC | Jun 7, 02:55 UTC | 11h 50m |
| 2026-06-02 | VQBCC | GMP → MAD | Jun 2, 13:25 UTC | Jun 3, 03:40 UTC | 14h 15m |
| 2026-06-01 | VQBCC | - | Jun 1, 05:00 UTC | Jun 1, 12:50 UTC | 7h 50m |
| 2026-05-30 | VQBCC | - | May 30, 18:35 UTC | May 31, 10:10 UTC | 15h 35m |
| 2026-05-29 | VQBCC | MEL → HNL | May 29, 07:00 UTC | May 29, 16:35 UTC | 9h 35m |
| 2026-05-28 | VQBCC | - | May 28, 06:45 UTC | May 28, 07:25 UTC | 40m |
| 2026-05-27 | VQBCC | - | May 27, 07:50 UTC | May 27, 08:15 UTC | 25m |
| 2026-05-26 | VQBCC | - | May 26, 19:45 UTC | May 26, 22:50 UTC | 3h 5m |
| 2026-05-23 | VQBCC | HKG → AKL | May 23, 21:05 UTC | May 24, 07:05 UTC | 10h 0m |
| 2026-05-19 | VQBCC | - | May 19, 08:35 UTC | May 19, 09:10 UTC | 35m |
| 2026-05-15 | VQBCC | - | May 15, 18:30 UTC | May 15, 21:15 UTC | 2h 45m |
| 2026-05-12 | VQBCC | EWR → LTN | May 12, 15:40 UTC | May 12, 21:55 UTC | 6h 15m |
| 2026-05-09 | VQBCC | ANC → EWR | May 9, 18:20 UTC | May 10, 00:15 UTC | 5h 55m |
| 2026-05-08 | VQBCC | HKG → ANC | May 8, 14:25 UTC | May 8, 23:05 UTC | 8h 40m |
| 2026-05-08 | VQBCC | - | May 8, 12:39 UTC | May 8, 13:20 UTC | 40m |
| 2026-05-05 | VQBCC | - | May 5, 01:30 UTC | May 5, 01:50 UTC | 20m |
| 2026-05-01 | VQBCC | - | May 1, 05:55 UTC | May 1, 06:15 UTC | 20m |
| 2026-05-01 | VQBCC | - | May 1, 03:05 UTC | May 1, 03:25 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 VQ-BCC page for operator, model, and routing details .