sensors Mode-S transponder
408143
ICAO 24-bit transponder address · allocated to United Kingdom
Currently assigned to G-DHMD · BOEING 777-200LR
- Hex
- 408143
- Octal
- 20100503
- Decimal
- 4,227,395
- Country
- GB
- Tail
- G-DHMD
- Type
- B77L
- Flights observed
- 120
- Distinct callsigns
- 20
- Country
- GB
- Last broadcast
- 5h ago
Current position
Country allocation
The ICAO 24-bit address 408143 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 20 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| DHK524 | DHL Air | 18 | 2026-05-07 |
| DHK591 | DHL Air | 15 | 2026-05-08 |
| DHK075 | - | 9 | 2026-05-24 |
| DHK593 | DHL Air | 8 | 2026-05-16 |
| DHK053 | DHL Air | 8 | 2026-05-22 |
| DHK009 | - | 7 | 2026-04-15 |
| DHK528 | DHL Air | 6 | 2026-05-15 |
| DHK076 | DHL Air | 6 | 2026-05-23 |
| DHK051 | DHL Air | 6 | 2026-05-29 |
| DHK004 | - | 5 | 2026-04-13 |
| DHK705 | DHL Air | 4 | 2026-05-18 |
| DHK054 | DHL Air | 4 | 2026-05-21 |
| DHK511 | DHL Air | 3 | 2026-04-19 |
| DHK052 | DHL Air | 3 | 2026-05-29 |
| DHK868 | DHL Air | 2 | 2026-05-03 |
| DHK814 | DHL Air | 2 | 2026-04-23 |
| DHK372 | DHL Air | 2 | 2026-05-24 |
| DHK371 | DHL Air | 2 | 2026-05-26 |
| DHK018 | DHL Air | 2 | 2026-04-27 |
| DHK007 | - | 2 | 2026-04-24 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | DHK051 | LEJ → LAX | May 29, 23:40 UTC | May 30, 08:45 UTC | 9h 5m |
| 2026-05-29 | DHK052 | EMA → BRU | May 29, 04:55 UTC | May 29, 20:45 UTC | 15h 50m |
| 2026-05-29 | DHK052 | EMA → BRU | May 29, 01:15 UTC | May 29, 02:10 UTC | 55m |
| 2026-05-28 | DHK051 | LEJ → LAX | May 28, 12:25 UTC | May 28, 22:15 UTC | 9h 50m |
| 2026-05-27 | DHK051 | LEJ → LAX | May 27, 14:50 UTC | May 28, 06:25 UTC | 15h 35m |
| 2026-05-27 | DHK051 | LEJ → LAX | May 27, 08:50 UTC | May 28, 06:25 UTC | 21h 35m |
| 2026-05-27 | DHK051 | LEJ → LAX | May 27, 06:49 UTC | May 28, 06:25 UTC | 23h 35m |
| 2026-05-27 | DHK052 | EMA → BRU | May 27, 05:04 UTC | May 27, 21:30 UTC | 16h 25m |
| 2026-05-26 | DHK371 | ORD → EMA | May 26, 11:09 UTC | May 26, 18:30 UTC | 7h 20m |
| 2026-05-24 | DHK372 | LEJ → EMA | May 24, 16:30 UTC | May 24, 23:46 UTC | 7h 16m |
| 2026-05-24 | DHK800 | LEJ → EMA | May 24, 12:00 UTC | May 24, 13:20 UTC | 1h 20m |
| 2026-05-24 | DHK597 | - | May 24, 08:10 UTC | May 24, 09:30 UTC | 1h 20m |
| 2026-05-24 | DHK075 | LEJ → EMA | May 24, 04:05 UTC | May 24, 05:25 UTC | 1h 20m |
| 2026-05-23 | DHK075 | - | May 23, 22:05 UTC | May 24, 01:55 UTC | 3h 50m |
| 2026-05-23 | DHK076 | EMA → EMA | May 23, 00:50 UTC | May 23, 23:20 UTC | 22h 30m |
| 2026-05-22 | DHK076 | EMA → EMA | May 22, 23:20 UTC | May 23, 22:45 UTC | 23h 25m |
| 2026-05-22 | DHK053 | LEJ → EMA | May 22, 11:50 UTC | May 22, 21:00 UTC | 9h 10m |
| 2026-05-21 | DHK053 | LEJ → EMA | May 21, 14:55 UTC | May 22, 07:00 UTC | 16h 5m |
| 2026-05-21 | DHK053 | LEJ → EMA | May 21, 08:50 UTC | May 22, 07:00 UTC | 22h 10m |
| 2026-05-21 | DHK053 | LEJ → EMA | May 21, 06:50 UTC | May 22, 06:45 UTC | 23h 55m |
| 2026-05-21 | DHK054 | EMA → BRU | May 21, 04:55 UTC | May 21, 22:40 UTC | 17h 45m |
| 2026-05-21 | DHK054 | EMA → BRU | May 21, 01:25 UTC | May 21, 02:15 UTC | 50m |
| 2026-05-20 | DHK053 | LEJ → EMA | May 20, 12:15 UTC | May 20, 21:20 UTC | 9h 5m |
| 2026-05-19 | DHK053 | LEJ → EMA | May 19, 14:50 UTC | May 20, 06:20 UTC | 15h 31m |
| 2026-05-19 | DHK053 | LEJ → EMA | May 19, 08:50 UTC | May 20, 06:20 UTC | 21h 31m |
| 2026-05-19 | DHK053 | LEJ → EMA | May 19, 06:50 UTC | May 20, 06:20 UTC | 23h 31m |
| 2026-05-19 | DHK054 | EMA → BRU | May 19, 05:00 UTC | May 19, 21:45 UTC | 16h 45m |
| 2026-05-19 | DHK054 | EMA → BRU | May 19, 01:20 UTC | May 19, 02:10 UTC | 50m |
| 2026-05-18 | DHK003 | - | May 18, 15:05 UTC | May 18, 22:10 UTC | 7h 4m |
| 2026-05-18 | DHK705 | CVG → BAH | May 18, 04:00 UTC | May 18, 12:30 UTC | 8h 30m |
| 2026-05-17 | DHK705 | CVG → BAH | May 17, 23:55 UTC | May 18, 01:15 UTC | 1h 20m |
| 2026-05-17 | DHK051 | LEJ → LAX | May 17, 14:30 UTC | May 17, 21:25 UTC | 6h 55m |
| 2026-05-17 | DHK703 | BAH → HKG | May 17, 03:10 UTC | May 17, 10:50 UTC | 7h 40m |
| 2026-05-16 | DHK593 | LEJ → EMA | May 16, 12:55 UTC | May 16, 21:35 UTC | 8h 40m |
| 2026-05-16 | DHK593 | LEJ → EMA | May 16, 04:15 UTC | May 16, 09:31 UTC | 5h 16m |
| 2026-05-15 | DHK528 | EMA → EMA | May 15, 12:55 UTC | May 15, 13:20 UTC | 25m |
| 2026-05-15 | DHK528 | EMA → EMA | May 15, 02:20 UTC | May 15, 05:55 UTC | 3h 35m |
| 2026-05-14 | DHK528 | EMA → EMA | May 14, 22:15 UTC | May 14, 23:50 UTC | 1h 35m |
| 2026-05-14 | DHK593 | LEJ → EMA | May 14, 07:30 UTC | May 14, 16:15 UTC | 8h 45m |
| 2026-05-14 | DHK593 | LEJ → EMA | May 14, 01:05 UTC | May 14, 04:35 UTC | 3h 30m |
| 2026-05-13 | DHK593 | LEJ → EMA | May 13, 23:00 UTC | May 13, 23:15 UTC | 15m |
| 2026-05-13 | DHK528 | EMA → EMA | May 13, 13:00 UTC | May 13, 13:35 UTC | 35m |
| 2026-05-13 | DHK528 | EMA → EMA | May 13, 02:30 UTC | May 13, 06:00 UTC | 3h 30m |
| 2026-05-12 | DHK528 | EMA → EMA | May 12, 22:25 UTC | May 12, 23:55 UTC | 1h 30m |
| 2026-05-12 | DHK371 | ORD → EMA | May 12, 11:35 UTC | May 12, 18:25 UTC | 6h 50m |
| 2026-05-10 | DHK372 | LEJ → EMA | May 10, 11:05 UTC | May 10, 18:55 UTC | 7h 50m |
| 2026-05-10 | DHK075 | LEJ → EMA | May 10, 03:25 UTC | May 10, 04:55 UTC | 1h 30m |
| 2026-05-09 | DHK075 | - | May 9, 08:25 UTC | May 10, 01:04 UTC | 16h 40m |
| 2026-05-09 | DHK075 | - | May 9, 00:50 UTC | May 10, 00:45 UTC | 23h 55m |
| 2026-05-08 | DHK076 | EMA → EMA | May 8, 22:50 UTC | May 9, 22:20 UTC | 23h 30m |
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-DHMD page for operator, model, and routing details .