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
- 68
- 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 |
| HMZ3926 | - | 2 | 2026-07-19 |
| HMZ3920 | - | 2 | 2026-07-09 |
| HMZ3894 | - | 2 | 2026-06-11 |
| HMZ3891 | - | 2 | 2026-06-10 |
| HMZ3865 | - | 2 | 2026-05-24 |
| HMZ2042 | - | 2 | 2026-06-20 |
| HMZ3928 | - | 1 | 2026-07-16 |
| HMZ3927 | - | 1 | 2026-07-20 |
| HMZ3924 | - | 1 | 2026-07-13 |
| HMZ3923 | - | 1 | 2026-07-13 |
| HMZ3922 | - | 1 | 2026-07-10 |
| HMZ3921 | - | 1 | 2026-07-10 |
| HMZ3911 | - | 1 | 2026-06-25 |
| HMZ3910 | - | 1 | 2026-06-23 |
| HMZ3904 | - | 1 | 2026-06-17 |
| HMZ3903 | - | 1 | 2026-06-15 |
| HMZ3902 | - | 1 | 2026-06-15 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-20 | HMZ3927 | - | Jul 20, 11:05 UTC | Jul 20, 13:35 UTC | 2h 30m |
| 2026-07-19 | HMZ3926 | - | Jul 19, 13:20 UTC | Jul 19, 13:40 UTC | 20m |
| 2026-07-19 | HMZ3926 | - | Jul 19, 10:30 UTC | Jul 19, 11:10 UTC | 40m |
| 2026-07-16 | HMZ3928 | - | Jul 16, 16:30 UTC | Jul 16, 17:25 UTC | 55m |
| 2026-07-13 | HMZ3924 | - | Jul 13, 13:15 UTC | Jul 13, 15:05 UTC | 1h 50m |
| 2026-07-13 | HMZ3923 | - | Jul 13, 11:45 UTC | Jul 13, 12:20 UTC | 35m |
| 2026-07-10 | HMZ3922 | - | Jul 10, 11:35 UTC | Jul 10, 13:25 UTC | 1h 50m |
| 2026-07-10 | HMZ3921 | - | Jul 10, 09:40 UTC | Jul 10, 10:20 UTC | 40m |
| 2026-07-09 | HMZ3920 | - | Jul 9, 10:05 UTC | Jul 10, 10:00 UTC | 23h 55m |
| 2026-07-09 | HMZ3920 | - | Jul 9, 02:15 UTC | Jul 9, 10:30 UTC | 8h 15m |
| 2026-07-01 | HMZ2038 | - | Jul 1, 11:45 UTC | Jul 2, 02:50 UTC | 15h 5m |
| 2026-06-30 | HMZ2034 | - | Jun 30, 12:05 UTC | Jul 1, 11:55 UTC | 23h 50m |
| 2026-06-29 | HMZ2033 | - | Jun 29, 18:05 UTC | Jun 30, 12:10 UTC | 18h 6m |
| 2026-06-26 | HMZ1368 | - | Jun 26, 11:30 UTC | Jun 26, 13:15 UTC | 1h 45m |
| 2026-06-26 | HMZ1367 | - | Jun 26, 04:59 UTC | Jun 26, 10:10 UTC | 5h 10m |
| 2026-06-25 | HMZ3911 | - | Jun 25, 09:34 UTC | Jun 25, 14:29 UTC | 4h 55m |
| 2026-06-23 | HMZ3910 | - | Jun 23, 18:10 UTC | Jun 23, 18:25 UTC | 15m |
| 2026-06-21 | HMZ2045 | - | Jun 21, 16:10 UTC | Jun 21, 18:29 UTC | 2h 20m |
| 2026-06-21 | HMZ2044 | - | Jun 21, 10:40 UTC | Jun 21, 14:10 UTC | 3h 30m |
| 2026-06-21 | HMZ2043 | - | Jun 21, 07:59 UTC | Jun 21, 08:54 UTC | 55m |
| 2026-06-20 | HMZ2042 | - | Jun 20, 10:04 UTC | Jun 20, 11:34 UTC | 1h 30m |
| 2026-06-19 | HMZ2042 | - | Jun 19, 13:44 UTC | Jun 20, 11:34 UTC | 21h 50m |
| 2026-06-19 | HMZ2030 | - | Jun 19, 09:44 UTC | Jun 19, 14:09 UTC | 4h 25m |
| 2026-06-17 | HMZ3904 | - | Jun 17, 00:00 UTC | Jun 17, 09:45 UTC | 9h 45m |
| 2026-06-15 | HMZ3903 | - | Jun 15, 20:20 UTC | Jun 15, 21:40 UTC | 1h 20m |
| 2026-06-15 | HMZ3902 | - | Jun 15, 18:35 UTC | Jun 15, 19:39 UTC | 1h 5m |
| 2026-06-12 | HMZ3895 | - | Jun 12, 19:10 UTC | Jun 12, 19:35 UTC | 25m |
| 2026-06-11 | HMZ3894 | - | Jun 11, 19:20 UTC | Jun 11, 19:40 UTC | 20m |
| 2026-06-10 | HMZ3894 | - | Jun 10, 22:05 UTC | Jun 11, 19:40 UTC | 21h 35m |
| 2026-06-10 | HMZ3891 | - | Jun 10, 20:40 UTC | Jun 11, 19:40 UTC | 23h 0m |
| 2026-06-10 | HMZ3891 | - | Jun 10, 19:15 UTC | Jun 10, 19:45 UTC | 30m |
| 2026-06-09 | HMZ3885 | - | Jun 9, 15:35 UTC | Jun 9, 17:00 UTC | 1h 25m |
| 2026-06-08 | HMZ3890 | - | Jun 8, 18:05 UTC | Jun 8, 18:25 UTC | 20m |
| 2026-06-08 | HMZ3889 | - | Jun 8, 09:55 UTC | Jun 8, 10:30 UTC | 35m |
| 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 |
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 .