sensors Mode-S transponder
4D2003
ICAO 24-bit transponder address · allocated to Malta
Currently assigned to 9H-SAS · BOEING 737-800
- Hex
- 4D2003
- Octal
- 23220003
- Decimal
- 5,054,467
- Country
- MT
- Tail
- 9H-SAS
- Type
- B738
- Flights observed
- 173
- Distinct callsigns
- 20
- Country
- MT
- Last broadcast
- 1h ago
Current position
Country allocation
The ICAO 24-bit address 4D2003 falls within the block assigned to Malta (MT) by ICAO Annex 10, Volume III. Every aircraft registered in Malta 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 |
|---|---|---|---|
| SEU7832 | - | 10 | 2026-05-19 |
| SEU7548 | - | 10 | 2026-07-12 |
| SEU7834 | - | 9 | 2026-05-16 |
| SEU7582 | - | 9 | 2026-07-16 |
| SEU8942 | - | 8 | 2026-07-09 |
| SEU8623 | - | 8 | 2026-07-14 |
| SEU7547 | - | 8 | 2026-07-12 |
| SEU7363 | - | 8 | 2026-07-15 |
| SEU8943 | - | 7 | 2026-07-06 |
| SEU8941 | - | 7 | 2026-07-18 |
| SEU7831 | - | 7 | 2026-05-19 |
| SEU7364 | - | 7 | 2026-07-15 |
| SEU8657 | - | 6 | 2026-07-13 |
| SEU8624 | - | 6 | 2026-07-14 |
| SEU7850 | - | 6 | 2026-05-17 |
| SEU7581 | - | 6 | 2026-07-16 |
| SEU6128 | - | 6 | 2026-07-11 |
| SEU8944 | - | 5 | 2026-06-28 |
| SEU8658 | - | 4 | 2026-07-05 |
| SEU7833 | - | 4 | 2026-05-16 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-18 | SEU8941 | - | Jul 18, 00:15 UTC | Jul 18, 00:45 UTC | 30m |
| 2026-07-17 | SEU7367 | - | Jul 17, 10:44 UTC | Jul 17, 22:49 UTC | 12h 5m |
| 2026-07-16 | SEU7581 | - | Jul 16, 23:59 UTC | Jul 17, 09:30 UTC | 9h 30m |
| 2026-07-16 | SEU7582 | - | Jul 16, 09:40 UTC | Jul 16, 22:45 UTC | 13h 5m |
| 2026-07-15 | SEU6126 | - | Jul 15, 22:35 UTC | Jul 16, 08:15 UTC | 9h 40m |
| 2026-07-15 | SEU6122 | - | Jul 15, 18:30 UTC | Jul 15, 21:05 UTC | 2h 35m |
| 2026-07-15 | SEU7363 | - | Jul 15, 10:45 UTC | Jul 15, 14:10 UTC | 3h 25m |
| 2026-07-15 | SEU7364 | - | Jul 15, 00:00 UTC | Jul 15, 09:25 UTC | 9h 25m |
| 2026-07-14 | SEU8623 | - | Jul 14, 11:00 UTC | Jul 14, 22:30 UTC | 11h 30m |
| 2026-07-14 | SEU8624 | - | Jul 14, 04:35 UTC | Jul 14, 08:15 UTC | 3h 40m |
| 2026-07-13 | SEU8657 | - | Jul 13, 22:20 UTC | Jul 14, 01:40 UTC | 3h 20m |
| 2026-07-13 | SEU8611 | - | Jul 13, 11:45 UTC | Jul 13, 21:10 UTC | 9h 25m |
| 2026-07-12 | SEU7547 | - | Jul 12, 21:00 UTC | Jul 13, 10:30 UTC | 13h 30m |
| 2026-07-12 | SEU7548 | - | Jul 12, 11:35 UTC | Jul 12, 19:45 UTC | 8h 10m |
| 2026-07-12 | SEU6124 | - | Jul 12, 06:05 UTC | Jul 12, 08:55 UTC | 2h 50m |
| 2026-07-11 | SEU6127 | - | Jul 11, 22:40 UTC | Jul 12, 01:30 UTC | 2h 50m |
| 2026-07-11 | SEU6128 | - | Jul 11, 18:35 UTC | Jul 11, 21:05 UTC | 2h 30m |
| 2026-07-11 | SEU6128 | - | Jul 11, 00:50 UTC | Jul 11, 21:05 UTC | 20h 15m |
| 2026-07-10 | SEU6128 | - | Jul 10, 23:10 UTC | Jul 11, 21:05 UTC | 21h 55m |
| 2026-07-10 | SEU7367 | - | Jul 10, 10:55 UTC | Jul 10, 21:15 UTC | 10h 20m |
| 2026-07-10 | SEU8941 | - | Jul 10, 00:00 UTC | Jul 10, 09:45 UTC | 9h 45m |
| 2026-07-09 | SEU8942 | - | Jul 9, 09:40 UTC | Jul 9, 22:30 UTC | 12h 50m |
| 2026-07-08 | SEU7581 | - | Jul 8, 23:50 UTC | Jul 9, 08:10 UTC | 8h 20m |
| 2026-07-08 | SEU7582 | - | Jul 8, 19:50 UTC | Jul 8, 22:25 UTC | 2h 35m |
| 2026-07-08 | SEU7363 | - | Jul 8, 10:35 UTC | Jul 8, 13:50 UTC | 3h 15m |
| 2026-07-07 | SEU7364 | - | Jul 7, 22:40 UTC | Jul 8, 09:20 UTC | 10h 40m |
| 2026-07-07 | SEU8623 | - | Jul 7, 10:55 UTC | Jul 7, 21:10 UTC | 10h 15m |
| 2026-07-06 | SEU8943 | - | Jul 6, 23:45 UTC | Jul 7, 09:20 UTC | 9h 35m |
| 2026-07-06 | SEU8611 | - | Jul 6, 11:45 UTC | Jul 6, 22:25 UTC | 10h 40m |
| 2026-07-05 | SEU8657 | - | Jul 5, 20:50 UTC | Jul 6, 10:30 UTC | 13h 40m |
| 2026-07-05 | SEU8658 | - | Jul 5, 11:05 UTC | Jul 5, 19:25 UTC | 8h 20m |
| 2026-07-04 | SEU7547 | - | Jul 4, 23:40 UTC | Jul 5, 09:25 UTC | 9h 45m |
| 2026-07-04 | SEU7548 | - | Jul 4, 19:50 UTC | Jul 4, 22:30 UTC | 2h 40m |
| 2026-07-04 | SEU6127 | - | Jul 4, 00:50 UTC | Jul 4, 19:45 UTC | 18h 55m |
| 2026-07-03 | SEU6127 | - | Jul 3, 23:10 UTC | Jul 4, 19:45 UTC | 20h 35m |
| 2026-07-03 | SEU7367 | - | Jul 3, 10:45 UTC | Jul 3, 21:25 UTC | 10h 40m |
| 2026-07-02 | SEU7368 | - | Jul 2, 22:45 UTC | Jul 3, 09:10 UTC | 10h 25m |
| 2026-07-02 | SEU6125 | - | Jul 2, 09:35 UTC | Jul 2, 20:55 UTC | 11h 20m |
| 2026-07-01 | SEU8941 | - | Jul 1, 23:40 UTC | Jul 2, 07:55 UTC | 8h 15m |
| 2026-07-01 | SEU8942 | - | Jul 1, 18:35 UTC | Jul 1, 22:05 UTC | 3h 30m |
| 2026-07-01 | SEU7363 | - | Jul 1, 10:25 UTC | Jul 1, 14:00 UTC | 3h 35m |
| 2026-06-30 | SEU7581 | - | Jun 30, 23:40 UTC | Jul 1, 08:40 UTC | 9h 0m |
| 2026-06-30 | SEU8623 | - | Jun 30, 11:35 UTC | Jun 30, 22:10 UTC | 10h 35m |
| 2026-06-29 | SEU8624 | - | Jun 29, 22:55 UTC | Jun 30, 09:05 UTC | 10h 11m |
| 2026-06-29 | SEU8611 | - | Jun 29, 11:50 UTC | Jun 29, 21:05 UTC | 9h 15m |
| 2026-06-28 | SEU8943 | - | Jun 28, 20:54 UTC | Jun 29, 10:34 UTC | 13h 40m |
| 2026-06-28 | SEU8944 | - | Jun 28, 10:55 UTC | Jun 28, 19:20 UTC | 8h 25m |
| 2026-06-27 | SEU8657 | - | Jun 27, 21:10 UTC | Jun 28, 09:30 UTC | 12h 20m |
| 2026-06-27 | SEU8658 | - | Jun 27, 00:50 UTC | Jun 27, 19:39 UTC | 18h 50m |
| 2026-06-26 | SEU7547 | - | Jun 26, 23:39 UTC | Jun 27, 19:39 UTC | 20h 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 9H-SAS page for operator, model, and routing details .