sensors Mode-S transponder
4BB748
ICAO 24-bit transponder address · allocated to Turkey
Currently assigned to TC-MZH · GULFSTREAM 4
- Hex
- 4BB748
- Octal
- 22733510
- Decimal
- 4,962,120
- Country
- TR
- Tail
- TC-MZH
- Type
- GLF4
- Flights observed
- 34
- Distinct callsigns
- 20
- Country
- TR
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 4BB748 falls within the block assigned to Turkey (TR) by ICAO Annex 10, Volume III. Every aircraft registered in Turkey 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 |
|---|---|---|---|
| HMZ3843 | - | 3 | 2026-04-23 |
| HMZ3838 | - | 3 | 2026-04-29 |
| HMZ3837 | - | 3 | 2026-04-28 |
| HMZ3865 | - | 2 | 2026-05-24 |
| HMZ3888 | - | 1 | 2026-06-05 |
| HMZ3887 | - | 1 | 2026-06-05 |
| HMZ3884 | - | 1 | 2026-06-04 |
| HMZ3883 | - | 1 | 2026-06-04 |
| HMZ3881 | - | 1 | 2026-06-04 |
| HMZ3876 | - | 1 | 2026-06-01 |
| HMZ3875 | - | 1 | 2026-05-25 |
| HMZ3874 | - | 1 | 2026-05-25 |
| HMZ3866 | - | 1 | 2026-05-25 |
| HMZ3864 | - | 1 | 2026-05-24 |
| HMZ3863 | - | 1 | 2026-05-23 |
| HMZ3856 | - | 1 | 2026-05-14 |
| HMZ3854 | - | 1 | 2026-05-11 |
| HMZ3852 | - | 1 | 2026-05-09 |
| HMZ3849 | - | 1 | 2026-05-05 |
| HMZ3840 | - | 1 | 2026-04-23 |
Recent flights last 34
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-05 | HMZ3888 | - | Jun 5, 18:55 UTC | Jun 5, 19:15 UTC | 20m |
| 2026-06-05 | HMZ3887 | - | Jun 5, 10:40 UTC | Jun 5, 11:05 UTC | 25m |
| 2026-06-04 | HMZ3884 | - | Jun 4, 16:25 UTC | Jun 4, 16:55 UTC | 30m |
| 2026-06-04 | HMZ3883 | - | Jun 4, 09:35 UTC | Jun 4, 15:15 UTC | 5h 40m |
| 2026-06-04 | HMZ3881 | - | Jun 4, 07:40 UTC | Jun 4, 08:20 UTC | 40m |
| 2026-06-01 | HMZ3876 | - | Jun 1, 15:20 UTC | Jun 1, 23:25 UTC | 8h 5m |
| 2026-05-25 | HMZ3875 | - | May 25, 13:05 UTC | May 25, 13:15 UTC | 10m |
| 2026-05-25 | HMZ3874 | - | May 25, 11:35 UTC | May 25, 12:05 UTC | 30m |
| 2026-05-25 | HMZ3866 | - | May 25, 07:55 UTC | May 25, 09:00 UTC | 1h 5m |
| 2026-05-24 | HMZ3865 | - | May 24, 12:05 UTC | May 25, 09:00 UTC | 20h 55m |
| 2026-05-24 | HMZ3865 | - | May 24, 11:35 UTC | May 25, 09:00 UTC | 21h 25m |
| 2026-05-24 | HMZ3864 | - | May 24, 09:40 UTC | May 24, 10:35 UTC | 55m |
| 2026-05-23 | HMZ3863 | - | May 23, 16:30 UTC | May 24, 08:30 UTC | 16h 1m |
| 2026-05-19 | HMZ295 | - | May 19, 10:00 UTC | May 19, 11:05 UTC | 1h 5m |
| 2026-05-14 | HMZ3856 | - | May 14, 12:00 UTC | May 14, 13:20 UTC | 1h 20m |
| 2026-05-11 | HMZ3854 | - | May 11, 08:10 UTC | May 11, 20:35 UTC | 12h 25m |
| 2026-05-09 | HMZ3852 | - | May 9, 12:20 UTC | May 9, 21:50 UTC | 9h 30m |
| 2026-05-05 | HMZ3849 | - | May 5, 14:30 UTC | May 5, 19:15 UTC | 4h 45m |
| 2026-04-29 | HMZ3838 | - | Apr 29, 16:05 UTC | Apr 30, 11:40 UTC | 19h 35m |
| 2026-04-29 | HMZ3838 | - | Apr 29, 12:05 UTC | Apr 30, 11:40 UTC | 23h 35m |
| 2026-04-28 | HMZ3837 | - | Apr 28, 16:45 UTC | Apr 28, 17:05 UTC | 20m |
| 2026-04-28 | HMZ3837 | - | Apr 28, 13:20 UTC | Apr 28, 14:05 UTC | 45m |
| 2026-04-27 | HMZ3836 | - | Apr 27, 10:35 UTC | Apr 27, 11:45 UTC | 1h 10m |
| 2026-04-25 | HMZ3835 | - | Apr 25, 13:45 UTC | Apr 25, 14:30 UTC | 45m |
| 2026-04-24 | HMZ3834 | - | Apr 24, 14:05 UTC | Apr 25, 14:00 UTC | 23h 55m |
| 2026-04-23 | HMZ3843 | - | Apr 23, 20:50 UTC | Apr 24, 14:15 UTC | 17h 25m |
| 2026-04-23 | HMZ3843 | - | Apr 23, 14:05 UTC | Apr 24, 14:00 UTC | 23h 55m |
| 2026-04-23 | HMZ3843 | - | Apr 23, 13:35 UTC | Apr 24, 11:25 UTC | 21h 50m |
| 2026-04-23 | HMZ3840 | - | Apr 23, 08:55 UTC | Apr 23, 21:35 UTC | 12h 40m |
| 2026-04-22 | HMZ3837 | - | Apr 22, 14:05 UTC | Apr 23, 14:00 UTC | 23h 55m |
| 2026-04-21 | HMZ3838 | - | Apr 21, 17:05 UTC | Apr 21, 17:25 UTC | 20m |
| 2026-04-19 | HMZ3829 | - | Apr 19, 17:10 UTC | Apr 19, 19:15 UTC | 2h 5m |
| 2026-04-19 | HMZ3832 | - | Apr 19, 12:35 UTC | Apr 19, 13:50 UTC | 1h 15m |
| 2026-04-14 | HMZ3821 | - | Apr 14, 13:55 UTC | Apr 14, 14:40 UTC | 45m |
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 TC-MZH page for operator, model, and routing details .