sensors Mode-S transponder
A7BFB0
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N599JT · operated by MARKETSTREET AIRCRAFT LLC
- Hex
- A7BFB0
- Octal
- 51737660
- Decimal
- 10,993,584
- Country
- US
- Tail
- N599JT
- Type
- GA5C
- Flights observed
- 39
- Distinct callsigns
- 2
- Country
- US
- Last broadcast
- 10d ago
Last known position
Country allocation
The ICAO 24-bit address A7BFB0 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States 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 2 distinct
Recent flights last 39
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-03 | N599JT | - | Jul 3, 13:10 UTC | Jul 3, 21:30 UTC | 8h 20m |
| 2026-06-30 | N599JT | EDI → STN | Jun 30, 16:40 UTC | Jun 30, 17:45 UTC | 1h 5m |
| 2026-06-28 | 654321 | - | Jun 28, 12:09 UTC | Jun 28, 19:14 UTC | 7h 5m |
| 2026-06-21 | N599JT | - | Jun 21, 22:40 UTC | Jun 21, 23:14 UTC | 35m |
| 2026-06-21 | N599JT | - | Jun 21, 20:40 UTC | Jun 21, 22:04 UTC | 1h 25m |
| 2026-06-19 | N599JT | - | Jun 19, 13:44 UTC | Jun 19, 15:14 UTC | 1h 30m |
| 2026-06-19 | N599JT | - | Jun 19, 01:19 UTC | Jun 19, 02:24 UTC | 1h 5m |
| 2026-06-18 | N599JT | - | Jun 18, 21:30 UTC | Jun 19, 00:45 UTC | 3h 14m |
| 2026-06-16 | N599JT | - | Jun 16, 14:15 UTC | Jun 16, 17:45 UTC | 3h 30m |
| 2026-06-16 | N599JT | - | Jun 16, 12:39 UTC | Jun 16, 13:44 UTC | 1h 5m |
| 2026-06-14 | N599JT | - | Jun 14, 19:30 UTC | Jun 14, 22:00 UTC | 2h 30m |
| 2026-06-14 | N599JT | - | Jun 14, 15:40 UTC | Jun 14, 17:25 UTC | 1h 45m |
| 2026-06-12 | N599JT | - | Jun 12, 16:50 UTC | Jun 12, 18:35 UTC | 1h 45m |
| 2026-06-11 | N599JT | - | Jun 11, 16:05 UTC | Jun 11, 18:30 UTC | 2h 25m |
| 2026-06-09 | N599JT | - | Jun 9, 13:55 UTC | Jun 9, 15:00 UTC | 1h 5m |
| 2026-06-08 | N599JT | - | Jun 8, 16:20 UTC | Jun 8, 20:00 UTC | 3h 40m |
| 2026-06-01 | N599JT | - | Jun 1, 13:25 UTC | Jun 1, 17:30 UTC | 4h 5m |
| 2026-05-28 | N599JT | - | May 28, 15:25 UTC | May 28, 17:05 UTC | 1h 40m |
| 2026-05-27 | N599JT | - | May 27, 20:15 UTC | May 27, 21:55 UTC | 1h 40m |
| 2026-05-24 | N599JT | - | May 24, 16:15 UTC | May 24, 17:25 UTC | 1h 10m |
| 2026-05-24 | N599JT | - | May 24, 13:45 UTC | May 24, 14:40 UTC | 55m |
| 2026-05-22 | N599JT | BWI → BNA | May 22, 20:50 UTC | May 22, 22:20 UTC | 1h 30m |
| 2026-05-22 | N599JT | - | May 22, 15:55 UTC | May 22, 17:00 UTC | 1h 5m |
| 2026-05-22 | N599JT | - | May 22, 14:15 UTC | May 22, 15:15 UTC | 1h 0m |
| 2026-05-20 | N599JT | - | May 20, 17:25 UTC | May 20, 19:15 UTC | 1h 50m |
| 2026-05-20 | N599JT | BNA → BWI | May 20, 15:25 UTC | May 20, 16:45 UTC | 1h 20m |
| 2026-05-17 | N599JT | - | May 17, 20:20 UTC | May 17, 22:10 UTC | 1h 50m |
| 2026-05-17 | N599JT | SAV → TEB | May 17, 17:30 UTC | May 17, 19:20 UTC | 1h 50m |
| 2026-05-15 | N599JT | - | May 15, 18:40 UTC | May 15, 20:15 UTC | 1h 35m |
| 2026-05-13 | N599JT | - | May 13, 21:15 UTC | May 13, 22:50 UTC | 1h 35m |
| 2026-04-27 | N599JT | - | Apr 27, 20:50 UTC | Apr 27, 22:55 UTC | 2h 5m |
| 2026-04-27 | N599JT | BNA → PBI | Apr 27, 13:20 UTC | Apr 27, 14:55 UTC | 1h 35m |
| 2026-04-22 | N599JT | - | Apr 22, 20:15 UTC | Apr 22, 22:00 UTC | 1h 45m |
| 2026-04-22 | N599JT | - | Apr 22, 09:50 UTC | Apr 22, 18:45 UTC | 8h 55m |
| 2026-04-19 | N599JT | - | Apr 19, 09:45 UTC | Apr 19, 10:10 UTC | 25m |
| 2026-04-15 | N599JT | - | Apr 15, 17:05 UTC | Apr 15, 18:30 UTC | 1h 25m |
| 2026-04-15 | N599JT | - | Apr 15, 10:20 UTC | Apr 15, 10:55 UTC | 35m |
| 2026-04-14 | N599JT | - | Apr 14, 18:55 UTC | Apr 14, 19:55 UTC | 1h 0m |
| 2026-04-14 | N599JT | - | Apr 14, 18:15 UTC | Apr 14, 18:45 UTC | 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 N599JT page for operator, model, and routing details .