sensors Mode-S transponder
A44E25
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N377DP · BOMBARDIER BD-100 Challenger 300 · operated by ORR INVESTMENTS LLC
- Hex
- A44E25
- Octal
- 51047045
- Decimal
- 10,767,909
- Country
- US
- Tail
- N377DP
- Type
- CL30
- Flights observed
- 29
- Distinct callsigns
- 2
- Country
- US
- Last broadcast
- 10h ago
Last known position
Country allocation
The ICAO 24-bit address A44E25 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 29
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-28 | IPD3 | - | Jun 28, 21:34 UTC | Jun 28, 21:55 UTC | 20m |
| 2026-06-28 | IPD3 | - | Jun 28, 19:09 UTC | Jun 28, 20:59 UTC | 1h 50m |
| 2026-06-27 | IPD3 | - | Jun 27, 13:55 UTC | Jun 27, 15:14 UTC | 1h 20m |
| 2026-06-26 | IPD3 | - | Jun 26, 16:05 UTC | Jun 26, 17:15 UTC | 1h 10m |
| 2026-06-24 | IPD3 | - | Jun 24, 22:29 UTC | Jun 25, 01:09 UTC | 2h 40m |
| 2026-06-24 | IPD3 | - | Jun 24, 17:10 UTC | Jun 24, 19:10 UTC | 2h 0m |
| 2026-06-24 | IPD3 | - | Jun 24, 14:45 UTC | Jun 24, 16:14 UTC | 1h 30m |
| 2026-06-24 | IPD3 | - | Jun 24, 12:04 UTC | Jun 24, 13:50 UTC | 1h 45m |
| 2026-06-21 | IPD3 | - | Jun 21, 23:05 UTC | Jun 22, 01:00 UTC | 1h 55m |
| 2026-06-21 | IPD3 | - | Jun 21, 20:24 UTC | Jun 21, 22:24 UTC | 2h 0m |
| 2026-06-21 | IPD3 | - | Jun 21, 16:30 UTC | Jun 21, 16:54 UTC | 25m |
| 2026-06-17 | IPD3 | - | Jun 17, 19:20 UTC | Jun 17, 20:00 UTC | 40m |
| 2026-06-15 | IPD3 | - | Jun 15, 14:00 UTC | Jun 15, 14:15 UTC | 15m |
| 2026-06-04 | IPD3 | - | Jun 4, 21:00 UTC | Jun 4, 23:05 UTC | 2h 5m |
| 2026-06-01 | IPD3 | - | Jun 1, 19:10 UTC | Jun 1, 21:15 UTC | 2h 5m |
| 2026-06-01 | IPD3 | - | Jun 1, 13:55 UTC | Jun 1, 16:30 UTC | 2h 35m |
| 2026-05-29 | IPD3 | APA → BNA | May 29, 15:30 UTC | May 29, 17:45 UTC | 2h 15m |
| 2026-05-29 | IPD3 | - | May 29, 14:10 UTC | May 29, 14:55 UTC | 45m |
| 2026-05-27 | IPD3 | - | May 27, 20:10 UTC | May 27, 20:45 UTC | 35m |
| 2026-05-27 | IPD3 | - | May 27, 17:55 UTC | May 27, 19:15 UTC | 1h 20m |
| 2026-05-27 | IPD3 | - | May 27, 15:15 UTC | May 27, 17:05 UTC | 1h 50m |
| 2026-05-18 | IPD3 | - | May 18, 01:00 UTC | May 18, 01:35 UTC | 35m |
| 2026-05-17 | IPD3 | - | May 17, 23:40 UTC | May 18, 00:30 UTC | 50m |
| 2026-05-13 | IPD3 | - | May 13, 20:20 UTC | May 13, 21:50 UTC | 1h 30m |
| 2026-05-10 | IPD3 | - | May 10, 21:19 UTC | May 10, 22:35 UTC | 1h 15m |
| 2026-05-10 | IPD3 | - | May 10, 18:45 UTC | May 10, 19:24 UTC | 40m |
| 2026-05-05 | IPD3 | - | May 5, 19:35 UTC | May 5, 20:10 UTC | 35m |
| 2026-04-13 | OTA53 | - | Apr 13, 13:30 UTC | Apr 13, 13:40 UTC | 10m |
| 2026-04-12 | OTA53 | - | Apr 12, 17:15 UTC | Apr 12, 18:35 UTC | 1h 20m |
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 N377DP page for operator, model, and routing details .