sensors Mode-S transponder
46A149
ICAO 24-bit transponder address · allocated to Greece
Currently assigned to SX-HJI · BELL 407
- Hex
- 46A149
- Octal
- 21520511
- Decimal
- 4,628,809
- Country
- GR
- Tail
- SX-HJI
- Type
- B407
- Flights observed
- 24
- Distinct callsigns
- 1
- Country
- GR
- Last broadcast
- 3h ago
Last known position
Country allocation
The ICAO 24-bit address 46A149 falls within the block assigned to Greece (GR) by ICAO Annex 10, Volume III. Every aircraft registered in Greece 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 |
|---|---|---|---|
| SXHJI | - | 24 | 2026-07-18 |
Recent flights last 24
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-18 | SXHJI | - | Jul 18, 08:45 UTC | Jul 18, 09:15 UTC | 30m |
| 2026-07-13 | SXHJI | - | Jul 13, 16:55 UTC | Jul 13, 17:25 UTC | 30m |
| 2026-07-13 | SXHJI | - | Jul 13, 14:45 UTC | Jul 13, 15:15 UTC | 30m |
| 2026-07-10 | SXHJI | - | Jul 10, 11:40 UTC | Jul 10, 11:50 UTC | 10m |
| 2026-07-10 | SXHJI | - | Jul 10, 08:30 UTC | Jul 10, 09:00 UTC | 30m |
| 2026-07-06 | SXHJI | - | Jul 6, 04:35 UTC | Jul 6, 05:55 UTC | 1h 20m |
| 2026-07-03 | SXHJI | - | Jul 3, 11:15 UTC | Jul 3, 12:25 UTC | 1h 10m |
| 2026-07-03 | SXHJI | - | Jul 3, 08:35 UTC | Jul 3, 09:40 UTC | 1h 5m |
| 2026-07-01 | SXHJI | - | Jul 1, 15:50 UTC | Jul 1, 16:30 UTC | 40m |
| 2026-07-01 | SXHJI | - | Jul 1, 14:15 UTC | Jul 1, 15:10 UTC | 55m |
| 2026-06-28 | SXHJI | - | Jun 28, 17:04 UTC | Jun 28, 17:30 UTC | 25m |
| 2026-06-28 | SXHJI | - | Jun 28, 15:05 UTC | Jun 28, 15:49 UTC | 45m |
| 2026-06-26 | SXHJI | - | Jun 26, 11:45 UTC | Jun 26, 12:10 UTC | 25m |
| 2026-06-26 | SXHJI | - | Jun 26, 09:45 UTC | Jun 26, 10:20 UTC | 35m |
| 2026-06-26 | SXHJI | - | Jun 26, 08:34 UTC | Jun 26, 08:54 UTC | 20m |
| 2026-06-15 | SXHJI | - | Jun 15, 07:40 UTC | Jun 15, 08:49 UTC | 1h 10m |
| 2026-06-15 | SXHJI | - | Jun 15, 05:25 UTC | Jun 15, 06:20 UTC | 55m |
| 2026-06-12 | SXHJI | - | Jun 12, 16:50 UTC | Jun 12, 17:30 UTC | 40m |
| 2026-06-12 | SXHJI | - | Jun 12, 15:05 UTC | Jun 12, 15:45 UTC | 40m |
| 2026-06-08 | SXHJI | - | Jun 8, 14:20 UTC | Jun 8, 14:45 UTC | 25m |
| 2026-06-08 | SXHJI | - | Jun 8, 12:00 UTC | Jun 8, 12:45 UTC | 45m |
| 2026-06-05 | SXHJI | - | Jun 5, 16:40 UTC | Jun 5, 17:15 UTC | 35m |
| 2026-06-05 | SXHJI | - | Jun 5, 14:15 UTC | Jun 5, 15:20 UTC | 1h 5m |
| 2026-05-04 | SXHJI | - | May 4, 08:35 UTC | May 4, 08:45 UTC | 10m |
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 SX-HJI page for operator, model, and routing details .