sensors Mode-S transponder
A423B7
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N366MP · CESSNA 525B Citation CJ3 · operated by MARTINS FAMOUS PASTRY SHOPPE INC
- Hex
- A423B7
- Octal
- 51021667
- Decimal
- 10,757,047
- Country
- US
- Tail
- N366MP
- Type
- C25B
- Flights observed
- 58
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- Jul 24, 20:15 UTC
Last known position
Country allocation
The ICAO 24-bit address A423B7 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 |
|---|---|---|---|
| HGE2 | - | 58 | 2026-07-24 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-24 | HGE2 | - | Jul 24, 18:30 UTC | Jul 24, 20:15 UTC | 1h 45m |
| 2026-07-24 | HGE2 | - | Jul 24, 11:30 UTC | Jul 24, 13:10 UTC | 1h 40m |
| 2026-07-23 | HGE2 | - | Jul 23, 18:00 UTC | Jul 23, 18:45 UTC | 45m |
| 2026-07-23 | HGE2 | - | Jul 23, 11:35 UTC | Jul 23, 12:35 UTC | 1h 0m |
| 2026-07-20 | HGE2 | - | Jul 20, 18:30 UTC | Jul 20, 20:20 UTC | 1h 50m |
| 2026-07-20 | HGE2 | - | Jul 20, 16:55 UTC | Jul 20, 17:40 UTC | 45m |
| 2026-07-20 | HGE2 | - | Jul 20, 13:45 UTC | Jul 20, 14:45 UTC | 1h 0m |
| 2026-07-20 | HGE2 | - | Jul 20, 11:30 UTC | Jul 20, 13:05 UTC | 1h 35m |
| 2026-07-19 | HGE2 | - | Jul 19, 17:35 UTC | Jul 19, 20:00 UTC | 2h 25m |
| 2026-07-11 | HGE2 | - | Jul 11, 13:45 UTC | Jul 11, 17:00 UTC | 3h 15m |
| 2026-06-20 | HGE2 | - | Jun 20, 14:59 UTC | Jun 20, 16:44 UTC | 1h 45m |
| 2026-06-20 | HGE2 | - | Jun 20, 12:50 UTC | Jun 20, 13:44 UTC | 55m |
| 2026-06-19 | HGE2 | - | Jun 19, 18:49 UTC | Jun 19, 20:34 UTC | 1h 45m |
| 2026-06-19 | HGE2 | - | Jun 19, 11:30 UTC | Jun 19, 13:39 UTC | 2h 10m |
| 2026-06-15 | HGE2 | - | Jun 15, 19:35 UTC | Jun 15, 21:30 UTC | 1h 55m |
| 2026-06-15 | HGE2 | - | Jun 15, 11:39 UTC | Jun 15, 13:30 UTC | 1h 50m |
| 2026-06-10 | HGE2 | - | Jun 10, 19:10 UTC | Jun 10, 20:55 UTC | 1h 45m |
| 2026-06-10 | HGE2 | - | Jun 10, 11:35 UTC | Jun 10, 13:15 UTC | 1h 40m |
| 2026-06-02 | HGE2 | - | Jun 2, 22:55 UTC | Jun 2, 23:45 UTC | 50m |
| 2026-06-02 | HGE2 | - | Jun 2, 18:40 UTC | Jun 2, 19:35 UTC | 55m |
| 2026-06-01 | HGE2 | - | Jun 1, 14:40 UTC | Jun 1, 16:25 UTC | 1h 45m |
| 2026-06-01 | HGE2 | - | Jun 1, 11:30 UTC | Jun 1, 13:15 UTC | 1h 45m |
| 2026-05-21 | HGE2 | - | May 21, 19:15 UTC | May 21, 21:35 UTC | 2h 20m |
| 2026-05-21 | HGE2 | - | May 21, 13:10 UTC | May 21, 14:30 UTC | 1h 20m |
| 2026-05-20 | HGE2 | - | May 20, 17:25 UTC | May 20, 19:25 UTC | 2h 0m |
| 2026-05-20 | HGE2 | - | May 20, 11:00 UTC | May 20, 13:45 UTC | 2h 45m |
| 2026-05-19 | HGE2 | - | May 19, 22:00 UTC | May 19, 23:50 UTC | 1h 50m |
| 2026-05-19 | HGE2 | - | May 19, 16:50 UTC | May 19, 18:20 UTC | 1h 30m |
| 2026-05-16 | HGE2 | - | May 16, 21:05 UTC | May 16, 23:05 UTC | 2h 0m |
| 2026-05-13 | HGE2 | - | May 13, 18:50 UTC | May 13, 21:00 UTC | 2h 10m |
| 2026-05-11 | HGE2 | - | May 11, 14:30 UTC | May 11, 16:10 UTC | 1h 40m |
| 2026-05-11 | HGE2 | - | May 11, 11:25 UTC | May 11, 13:20 UTC | 1h 55m |
| 2026-05-05 | HGE2 | - | May 5, 17:35 UTC | May 5, 19:25 UTC | 1h 50m |
| 2026-05-05 | HGE2 | - | May 5, 11:20 UTC | May 5, 13:05 UTC | 1h 45m |
| 2026-04-30 | HGE2 | - | Apr 30, 19:50 UTC | Apr 30, 21:05 UTC | 1h 15m |
| 2026-04-30 | HGE2 | - | Apr 30, 15:35 UTC | Apr 30, 16:15 UTC | 40m |
| 2026-04-30 | HGE2 | - | Apr 30, 10:50 UTC | Apr 30, 12:55 UTC | 2h 5m |
| 2026-04-29 | HGE2 | - | Apr 29, 18:05 UTC | Apr 29, 18:55 UTC | 50m |
| 2026-04-29 | HGE2 | - | Apr 29, 11:55 UTC | Apr 29, 13:00 UTC | 1h 5m |
| 2026-04-27 | HGE2 | - | Apr 27, 18:45 UTC | Apr 27, 20:30 UTC | 1h 45m |
| 2026-04-27 | HGE2 | - | Apr 27, 11:30 UTC | Apr 27, 13:05 UTC | 1h 35m |
| 2026-04-24 | HGE2 | - | Apr 24, 19:00 UTC | Apr 24, 20:45 UTC | 1h 45m |
| 2026-04-24 | HGE2 | - | Apr 24, 11:45 UTC | Apr 24, 13:25 UTC | 1h 40m |
| 2026-04-22 | HGE2 | - | Apr 22, 22:20 UTC | Apr 22, 22:50 UTC | 30m |
| 2026-04-22 | HGE2 | - | Apr 22, 20:40 UTC | Apr 22, 22:15 UTC | 1h 35m |
| 2026-04-22 | HGE2 | - | Apr 22, 16:15 UTC | Apr 22, 18:35 UTC | 2h 20m |
| 2026-04-20 | HGE2 | - | Apr 20, 18:30 UTC | Apr 20, 20:15 UTC | 1h 45m |
| 2026-04-20 | HGE2 | - | Apr 20, 11:30 UTC | Apr 20, 13:20 UTC | 1h 50m |
| 2026-04-17 | HGE2 | - | Apr 17, 19:25 UTC | Apr 17, 20:30 UTC | 1h 5m |
| 2026-04-17 | HGE2 | - | Apr 17, 18:40 UTC | Apr 17, 19:20 UTC | 40m |
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 N366MP page for operator, model, and routing details .