sensors Mode-S transponder
A87A97
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N6453H · CESSNA R182 Skylane RG · operated by NORTH SHORE AERO CLUB INC
- Hex
- A87A97
- Octal
- 52075227
- Decimal
- 11,041,431
- Country
- US
- Tail
- N6453H
- Type
- C82R
- Flights observed
- 46
- Distinct callsigns
- 2
- Country
- US
- Last broadcast
- 12h ago
Last known position
Country allocation
The ICAO 24-bit address A87A97 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 46
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | N6453H | - | Jul 13, 22:50 UTC | Jul 13, 23:45 UTC | 55m |
| 2026-07-12 | N6453H | - | Jul 12, 20:30 UTC | Jul 12, 21:20 UTC | 50m |
| 2026-07-12 | N6453H | - | Jul 12, 15:15 UTC | Jul 12, 16:05 UTC | 50m |
| 2026-07-11 | N6453H | - | Jul 11, 19:10 UTC | Jul 11, 21:25 UTC | 2h 15m |
| 2026-07-11 | CMF2644 | - | Jul 11, 16:40 UTC | Jul 11, 17:15 UTC | 35m |
| 2026-07-11 | CMF2644 | - | Jul 11, 14:40 UTC | Jul 11, 16:05 UTC | 1h 25m |
| 2026-07-10 | N6453H | - | Jul 10, 18:20 UTC | Jul 10, 18:35 UTC | 15m |
| 2026-07-10 | N6453H | - | Jul 10, 16:00 UTC | Jul 10, 16:50 UTC | 50m |
| 2026-07-10 | N6453H | BVY → BVY | Jul 10, 14:15 UTC | Jul 10, 14:35 UTC | 20m |
| 2026-07-08 | N6453H | - | Jul 8, 12:45 UTC | Jul 8, 13:00 UTC | 15m |
| 2026-07-06 | N6453H | - | Jul 6, 17:25 UTC | Jul 6, 17:35 UTC | 10m |
| 2026-07-05 | N6453H | - | Jul 5, 18:10 UTC | Jul 5, 19:10 UTC | 1h 0m |
| 2026-07-05 | N6453H | - | Jul 5, 14:50 UTC | Jul 5, 15:35 UTC | 45m |
| 2026-07-03 | N6453H | - | Jul 3, 14:15 UTC | Jul 3, 15:50 UTC | 1h 35m |
| 2026-07-02 | N6453H | - | Jul 2, 19:05 UTC | Jul 2, 20:25 UTC | 1h 20m |
| 2026-06-29 | N6453H | - | Jun 29, 22:30 UTC | Jun 30, 00:20 UTC | 1h 50m |
| 2026-06-26 | N6453H | - | Jun 26, 19:55 UTC | Jun 26, 20:44 UTC | 50m |
| 2026-06-24 | N6453H | - | Jun 24, 14:45 UTC | Jun 24, 15:39 UTC | 55m |
| 2026-06-21 | N6453H | - | Jun 21, 18:50 UTC | Jun 21, 19:50 UTC | 1h 0m |
| 2026-06-20 | N6453H | - | Jun 20, 16:49 UTC | Jun 20, 17:49 UTC | 1h 0m |
| 2026-06-17 | N6453H | - | Jun 17, 19:55 UTC | Jun 17, 20:55 UTC | 1h 0m |
| 2026-06-05 | N6453H | - | Jun 5, 16:40 UTC | Jun 5, 18:05 UTC | 1h 25m |
| 2026-06-04 | N6453H | - | Jun 4, 14:55 UTC | Jun 4, 16:35 UTC | 1h 40m |
| 2026-06-03 | N6453H | - | Jun 3, 18:30 UTC | Jun 3, 19:25 UTC | 55m |
| 2026-06-03 | N6453H | - | Jun 3, 14:25 UTC | Jun 3, 17:55 UTC | 3h 30m |
| 2026-06-03 | N6453H | - | Jun 3, 12:15 UTC | Jun 3, 12:25 UTC | 10m |
| 2026-05-31 | N6453H | BVY → BVY | May 31, 18:20 UTC | May 31, 18:30 UTC | 10m |
| 2026-05-29 | N6453H | BVY → BVY | May 29, 22:30 UTC | May 29, 23:25 UTC | 55m |
| 2026-05-29 | N6453H | BVY → BVY | May 29, 12:05 UTC | May 29, 13:10 UTC | 1h 5m |
| 2026-05-28 | N6453H | - | May 28, 17:00 UTC | May 28, 19:10 UTC | 2h 10m |
| 2026-05-22 | N6453H | - | May 22, 15:50 UTC | May 22, 17:50 UTC | 2h 0m |
| 2026-05-16 | N6453H | - | May 16, 20:05 UTC | May 16, 21:20 UTC | 1h 14m |
| 2026-05-16 | N6453H | BVY → BID | May 16, 14:20 UTC | May 16, 17:35 UTC | 3h 15m |
| 2026-05-09 | N6453H | - | May 9, 14:45 UTC | May 9, 15:45 UTC | 1h 0m |
| 2026-05-04 | N6453H | - | May 4, 12:25 UTC | May 4, 13:35 UTC | 1h 10m |
| 2026-05-01 | N6453H | - | May 1, 18:10 UTC | May 1, 19:30 UTC | 1h 20m |
| 2026-05-01 | N6453H | - | May 1, 14:10 UTC | May 1, 15:15 UTC | 1h 5m |
| 2026-04-29 | N6453H | - | Apr 29, 19:00 UTC | Apr 29, 19:40 UTC | 40m |
| 2026-04-29 | N6453H | - | Apr 29, 13:15 UTC | Apr 29, 13:50 UTC | 35m |
| 2026-04-28 | N6453H | BVY → BVY | Apr 28, 20:35 UTC | Apr 28, 22:10 UTC | 1h 35m |
| 2026-04-28 | N6453H | - | Apr 28, 16:50 UTC | Apr 28, 17:10 UTC | 20m |
| 2026-04-28 | N6453H | - | Apr 28, 14:50 UTC | Apr 28, 15:40 UTC | 50m |
| 2026-04-27 | N6453H | BVY → BVY | Apr 27, 15:55 UTC | Apr 27, 16:35 UTC | 40m |
| 2026-04-24 | N6453H | - | Apr 24, 14:10 UTC | Apr 24, 15:45 UTC | 1h 35m |
| 2026-04-21 | N6453H | BVY → BVY | Apr 21, 20:45 UTC | Apr 21, 21:40 UTC | 55m |
| 2026-04-18 | N6453H | BVY → BVY | Apr 18, 18:40 UTC | Apr 18, 19:40 UTC | 1h 0m |
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 N6453H page for operator, model, and routing details .