sensors Mode-S transponder
4075C3
ICAO 24-bit transponder address · allocated to United Kingdom
Currently assigned to G-CKWS · BOEING 787-9 Dreamliner
- Hex
- 4075C3
- Octal
- 20072703
- Decimal
- 4,224,451
- Country
- GB
- Tail
- G-CKWS
- Type
- B789
- Flights observed
- 74
- Distinct callsigns
- 13
- Country
- GB
- Last broadcast
- 47m ago
Last known position
Country allocation
The ICAO 24-bit address 4075C3 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 13 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| UBT70Z | - | 18 | 2026-07-04 |
| UBT70A | - | 18 | 2026-07-05 |
| UBT78T | - | 11 | 2026-06-16 |
| UBT78G | - | 11 | 2026-07-14 |
| UBT796 | Norse Atlantic UK | 5 | 2026-05-30 |
| UBT795 | Norse Atlantic UK | 3 | 2026-05-30 |
| UBT901 | Norse Atlantic UK | 2 | 2026-07-03 |
| UBT903 | - | 1 | 2026-07-14 |
| UBT902 | Norse Atlantic UK | 1 | 2026-05-06 |
| NBT02Z | - | 1 | 2026-07-13 |
| NBT02A | - | 1 | 2026-07-10 |
| NBT002 | - | 1 | 2026-07-07 |
| NBT001 | - | 1 | 2026-07-03 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | UBT78G | - | Jul 14, 13:20 UTC | Jul 14, 14:35 UTC | 1h 15m |
| 2026-07-14 | UBT903 | OSL → LGW | Jul 14, 08:50 UTC | Jul 14, 10:35 UTC | 1h 45m |
| 2026-07-13 | NBT02Z | - | Jul 13, 06:25 UTC | Jul 13, 14:50 UTC | 8h 25m |
| 2026-07-10 | NBT02A | OSL → MIA | Jul 10, 15:25 UTC | Jul 11, 00:45 UTC | 9h 20m |
| 2026-07-07 | NBT002 | JFK → OSL | Jul 7, 03:35 UTC | Jul 7, 10:00 UTC | 6h 25m |
| 2026-07-05 | UBT70A | LGW → JFK | Jul 5, 12:35 UTC | Jul 5, 19:40 UTC | 7h 5m |
| 2026-07-04 | UBT70Z | JFK → LGW | Jul 4, 23:25 UTC | Jul 5, 05:20 UTC | 5h 55m |
| 2026-07-03 | NBT001 | OSL → JFK | Jul 3, 19:30 UTC | Jul 4, 02:50 UTC | 7h 20m |
| 2026-07-03 | UBT901 | LGW → MAN | Jul 3, 15:10 UTC | Jul 3, 16:50 UTC | 1h 40m |
| 2026-06-27 | UBT70Z | JFK → LGW | Jun 27, 22:45 UTC | Jun 28, 05:09 UTC | 6h 25m |
| 2026-06-27 | UBT70A | LGW → JFK | Jun 27, 12:34 UTC | Jun 27, 19:29 UTC | 6h 55m |
| 2026-06-26 | UBT70Z | JFK → LGW | Jun 26, 23:09 UTC | Jun 27, 05:15 UTC | 6h 5m |
| 2026-06-26 | UBT70A | LGW → JFK | Jun 26, 12:29 UTC | Jun 26, 19:35 UTC | 7h 5m |
| 2026-06-22 | UBT70Z | JFK → LGW | Jun 22, 23:20 UTC | Jun 23, 05:20 UTC | 6h 0m |
| 2026-06-22 | UBT70A | LGW → JFK | Jun 22, 12:34 UTC | Jun 22, 19:44 UTC | 7h 10m |
| 2026-06-16 | UBT78T | MCO → LGW | Jun 16, 00:50 UTC | Jun 16, 08:39 UTC | 7h 50m |
| 2026-06-15 | UBT78G | LGW → MCO | Jun 15, 13:25 UTC | Jun 15, 22:20 UTC | 8h 55m |
| 2026-06-14 | UBT70Z | JFK → LGW | Jun 14, 22:50 UTC | Jun 15, 05:04 UTC | 6h 15m |
| 2026-06-14 | UBT70A | LGW → JFK | Jun 14, 12:25 UTC | Jun 14, 19:15 UTC | 6h 50m |
| 2026-06-14 | UBT78T | MCO → LGW | Jun 14, 01:10 UTC | Jun 14, 08:55 UTC | 7h 46m |
| 2026-06-13 | UBT78G | LGW → MCO | Jun 13, 13:15 UTC | Jun 13, 21:50 UTC | 8h 35m |
| 2026-06-10 | UBT70Z | JFK → LGW | Jun 10, 22:50 UTC | Jun 11, 05:05 UTC | 6h 15m |
| 2026-06-10 | UBT70A | LGW → JFK | Jun 10, 12:50 UTC | Jun 10, 20:15 UTC | 7h 25m |
| 2026-06-07 | UBT78T | MCO → LGW | Jun 7, 01:00 UTC | Jun 7, 08:45 UTC | 7h 45m |
| 2026-06-06 | UBT78G | LGW → MCO | Jun 6, 13:30 UTC | Jun 6, 22:10 UTC | 8h 40m |
| 2026-06-06 | UBT78T | MCO → LGW | Jun 6, 00:45 UTC | Jun 6, 08:30 UTC | 7h 45m |
| 2026-06-05 | UBT78G | LGW → MCO | Jun 5, 13:35 UTC | Jun 5, 22:15 UTC | 8h 40m |
| 2026-06-03 | UBT70Z | JFK → LGW | Jun 3, 22:50 UTC | Jun 4, 05:15 UTC | 6h 25m |
| 2026-06-03 | UBT70A | LGW → JFK | Jun 3, 12:30 UTC | Jun 3, 19:25 UTC | 6h 55m |
| 2026-06-02 | UBT70Z | JFK → LGW | Jun 2, 23:20 UTC | Jun 3, 05:15 UTC | 5h 55m |
| 2026-06-02 | UBT70A | LGW → JFK | Jun 2, 12:50 UTC | Jun 2, 19:55 UTC | 7h 5m |
| 2026-05-30 | UBT796 | CPT → LGW | May 30, 22:15 UTC | May 31, 09:40 UTC | 11h 25m |
| 2026-05-30 | UBT795 | LGW → CPT | May 30, 09:10 UTC | May 30, 20:05 UTC | 10h 55m |
| 2026-05-24 | UBT78T | MCO → LGW | May 24, 01:15 UTC | May 24, 08:55 UTC | 7h 40m |
| 2026-05-23 | UBT78G | LGW → MCO | May 23, 13:20 UTC | May 23, 22:05 UTC | 8h 45m |
| 2026-05-22 | UBT70Z | JFK → LGW | May 22, 22:55 UTC | May 23, 05:05 UTC | 6h 9m |
| 2026-05-22 | UBT70A | LGW → JFK | May 22, 12:25 UTC | May 22, 19:15 UTC | 6h 50m |
| 2026-05-22 | UBT796 | CPT → LGW | May 22, 00:40 UTC | May 22, 09:15 UTC | 8h 35m |
| 2026-05-21 | UBT796 | CPT → LGW | May 21, 21:50 UTC | May 21, 22:10 UTC | 20m |
| 2026-05-21 | UBT795 | LGW → CPT | May 21, 09:25 UTC | May 21, 19:55 UTC | 10h 30m |
| 2026-05-16 | UBT70Z | JFK → LGW | May 16, 22:50 UTC | May 17, 05:10 UTC | 6h 20m |
| 2026-05-16 | UBT70A | LGW → JFK | May 16, 12:31 UTC | May 16, 19:40 UTC | 7h 10m |
| 2026-05-12 | UBT70Z | JFK → LGW | May 12, 23:01 UTC | May 13, 05:25 UTC | 6h 25m |
| 2026-05-12 | UBT70A | LGW → JFK | May 12, 12:30 UTC | May 12, 19:45 UTC | 7h 15m |
| 2026-05-11 | UBT796 | CPT → LGW | May 11, 21:40 UTC | May 12, 08:55 UTC | 11h 15m |
| 2026-05-11 | UBT795 | LGW → CPT | May 11, 08:25 UTC | May 11, 19:35 UTC | 11h 11m |
| 2026-05-09 | UBT70Z | JFK → LGW | May 9, 22:39 UTC | May 10, 05:04 UTC | 6h 25m |
| 2026-05-09 | UBT70A | LGW → JFK | May 9, 12:40 UTC | May 9, 19:40 UTC | 7h 0m |
| 2026-05-09 | UBT78T | MCO → LGW | May 9, 01:15 UTC | May 9, 09:10 UTC | 7h 55m |
| 2026-05-08 | UBT78G | LGW → MCO | May 8, 13:30 UTC | May 8, 22:30 UTC | 9h 0m |
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 G-CKWS page for operator, model, and routing details .