sensors Mode-S transponder
ADF1D2
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N998R · BOMBARDIER BD-700 Global 7000/7500 · operated by TVPX AIRCRAFT SOLUTIONS INC TRUSTEE
- Hex
- ADF1D2
- Octal
- 53370722
- Decimal
- 11,399,634
- Country
- US
- Tail
- N998R
- Type
- GL7T
- Flights observed
- 12
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- 7d ago
Last known position
Country allocation
The ICAO 24-bit address ADF1D2 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 1 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| N998R | - | 12 | 2026-05-26 |
Recent flights last 12
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-26 | N998R | - | May 26, 22:29 UTC | May 27, 11:45 UTC | 13h 16m |
| 2026-05-26 | N998R | - | May 26, 09:25 UTC | May 26, 21:00 UTC | 11h 35m |
| 2026-05-25 | N998R | MXP → CIA | May 25, 10:05 UTC | May 25, 10:55 UTC | 50m |
| 2026-05-24 | N998R | YUL → MXP | May 24, 20:55 UTC | May 25, 03:50 UTC | 6h 55m |
| 2026-05-21 | N998R | - | May 21, 14:40 UTC | May 21, 19:00 UTC | 4h 20m |
| 2026-05-21 | N998R | - | May 21, 01:50 UTC | May 21, 13:40 UTC | 11h 50m |
| 2026-05-17 | N998R | MEB → CHC | May 17, 23:35 UTC | May 18, 02:20 UTC | 2h 45m |
| 2026-05-03 | N998R | - | May 3, 03:05 UTC | May 3, 06:15 UTC | 3h 9m |
| 2026-04-27 | N998R | - | Apr 27, 18:25 UTC | Apr 28, 08:25 UTC | 14h 0m |
| 2026-04-26 | N998R | - | Apr 26, 15:55 UTC | Apr 27, 02:05 UTC | 10h 10m |
| 2026-04-23 | N998R | LAX → BHX | Apr 23, 07:45 UTC | Apr 23, 17:15 UTC | 9h 30m |
| 2026-04-22 | N998R | - | Apr 22, 19:05 UTC | Apr 23, 06:35 UTC | 11h 31m |
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 N998R page for operator, model, and routing details .