sensors Mode-S transponder
A54E94
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N441CP · VANS RV-4 · operated by TEXTRON AVIATION INC
- Hex
- A54E94
- Octal
- 51247224
- Decimal
- 10,833,556
- Country
- US
- Tail
- N441CP
- Type
- RV4
- Flights observed
- 40
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- Jul 25, 16:20 UTC
Last known position
Country allocation
The ICAO 24-bit address A54E94 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 |
|---|---|---|---|
| CAP3041 | - | 40 | 2026-07-25 |
Recent flights last 40
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | CAP3041 | - | Jul 25, 15:10 UTC | Jul 25, 16:20 UTC | 1h 10m |
| 2026-07-24 | CAP3041 | - | Jul 24, 15:15 UTC | Jul 24, 16:25 UTC | 1h 10m |
| 2026-07-21 | CAP3041 | ABQ → ABQ | Jul 21, 03:20 UTC | Jul 21, 04:00 UTC | 40m |
| 2026-07-11 | CAP3041 | - | Jul 11, 15:55 UTC | Jul 11, 16:55 UTC | 1h 0m |
| 2026-07-10 | CAP3041 | - | Jul 10, 15:35 UTC | Jul 10, 16:40 UTC | 1h 5m |
| 2026-07-03 | CAP3041 | ABQ → ABQ | Jul 3, 15:05 UTC | Jul 3, 15:50 UTC | 45m |
| 2026-06-26 | CAP3041 | - | Jun 26, 13:24 UTC | Jun 26, 14:50 UTC | 1h 25m |
| 2026-06-25 | CAP3041 | - | Jun 25, 16:29 UTC | Jun 25, 17:34 UTC | 1h 5m |
| 2026-06-21 | CAP3041 | - | Jun 21, 13:29 UTC | Jun 21, 13:44 UTC | 15m |
| 2026-06-18 | CAP3041 | - | Jun 18, 17:45 UTC | Jun 18, 19:35 UTC | 1h 50m |
| 2026-06-18 | CAP3041 | - | Jun 18, 09:50 UTC | Jun 18, 11:55 UTC | 2h 5m |
| 2026-06-17 | CAP3041 | - | Jun 17, 21:00 UTC | Jun 17, 22:10 UTC | 1h 10m |
| 2026-06-17 | CAP3041 | - | Jun 17, 19:35 UTC | Jun 17, 20:10 UTC | 35m |
| 2026-06-17 | CAP3041 | - | Jun 17, 11:15 UTC | Jun 17, 12:00 UTC | 45m |
| 2026-06-17 | CAP3041 | - | Jun 17, 03:30 UTC | Jun 17, 04:10 UTC | 40m |
| 2026-06-17 | CAP3041 | - | Jun 17, 01:45 UTC | Jun 17, 02:45 UTC | 1h 0m |
| 2026-06-16 | CAP3041 | - | Jun 16, 21:55 UTC | Jun 16, 23:45 UTC | 1h 50m |
| 2026-06-16 | CAP3041 | - | Jun 16, 10:40 UTC | Jun 16, 12:00 UTC | 1h 20m |
| 2026-06-16 | CAP3041 | - | Jun 16, 09:34 UTC | Jun 16, 09:45 UTC | 10m |
| 2026-06-15 | CAP3041 | - | Jun 15, 15:40 UTC | Jun 15, 17:30 UTC | 1h 50m |
| 2026-06-14 | CAP3041 | - | Jun 14, 16:00 UTC | Jun 14, 17:45 UTC | 1h 45m |
| 2026-06-12 | CAP3041 | - | Jun 12, 16:25 UTC | Jun 12, 18:15 UTC | 1h 50m |
| 2026-06-04 | CAP3041 | - | Jun 4, 15:30 UTC | Jun 4, 15:45 UTC | 15m |
| 2026-05-26 | CAP3041 | - | May 26, 14:24 UTC | May 26, 14:40 UTC | 15m |
| 2026-05-24 | CAP3041 | - | May 24, 13:50 UTC | May 24, 15:00 UTC | 1h 10m |
| 2026-05-23 | CAP3041 | - | May 23, 18:35 UTC | May 23, 18:50 UTC | 15m |
| 2026-05-23 | CAP3041 | - | May 23, 14:40 UTC | May 23, 15:15 UTC | 35m |
| 2026-05-22 | CAP3041 | ABQ → ABQ | May 22, 14:30 UTC | May 22, 15:35 UTC | 1h 5m |
| 2026-05-21 | CAP3041 | - | May 21, 15:30 UTC | May 21, 16:45 UTC | 1h 15m |
| 2026-05-16 | CAP3041 | - | May 16, 16:45 UTC | May 16, 17:01 UTC | 15m |
| 2026-05-16 | CAP3041 | - | May 16, 14:05 UTC | May 16, 14:31 UTC | 25m |
| 2026-05-14 | CAP3041 | - | May 14, 17:30 UTC | May 14, 18:30 UTC | 1h 0m |
| 2026-05-09 | CAP3041 | - | May 9, 16:05 UTC | May 9, 16:35 UTC | 30m |
| 2026-05-09 | CAP3041 | - | May 9, 14:55 UTC | May 9, 15:25 UTC | 30m |
| 2026-05-07 | CAP3041 | - | May 7, 16:05 UTC | May 7, 16:50 UTC | 45m |
| 2026-04-30 | CAP3041 | - | Apr 30, 15:30 UTC | Apr 30, 15:45 UTC | 15m |
| 2026-04-30 | CAP3041 | - | Apr 30, 14:15 UTC | Apr 30, 14:30 UTC | 15m |
| 2026-04-29 | CAP3041 | - | Apr 29, 02:50 UTC | Apr 29, 03:49 UTC | 1h 0m |
| 2026-04-25 | CAP3041 | - | Apr 25, 17:40 UTC | Apr 25, 17:55 UTC | 15m |
| 2026-04-24 | CAP3041 | - | Apr 24, 16:35 UTC | Apr 24, 17:45 UTC | 1h 10m |
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 N441CP page for operator, model, and routing details .