sensors Mode-S transponder
A1A0CB
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N2039R · CESSNA 182 Skylane · operated by CHURCH OF THE WORD INTERNATIONAL INC
- Hex
- A1A0CB
- Octal
- 50320313
- Decimal
- 10,592,459
- Country
- US
- Tail
- N2039R
- Type
- C182
- Flights observed
- 49
- Distinct callsigns
- 2
- Country
- US
- Last broadcast
- 10d ago
Last known position
Country allocation
The ICAO 24-bit address A1A0CB 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 49
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | N2039R | - | Jul 26, 21:15 UTC | Jul 26, 22:40 UTC | 1h 25m |
| 2026-07-26 | N2039R | - | Jul 26, 13:25 UTC | Jul 26, 14:55 UTC | 1h 30m |
| 2026-07-21 | SYH4916 | - | Jul 21, 16:20 UTC | Jul 21, 16:55 UTC | 35m |
| 2026-07-21 | SYH4916 | - | Jul 21, 13:45 UTC | Jul 21, 15:25 UTC | 1h 40m |
| 2026-07-21 | SYH4916 | - | Jul 21, 11:35 UTC | Jul 21, 13:05 UTC | 1h 30m |
| 2026-07-19 | N2039R | - | Jul 19, 22:40 UTC | Jul 20, 00:10 UTC | 1h 30m |
| 2026-07-19 | N2039R | - | Jul 19, 13:10 UTC | Jul 19, 15:05 UTC | 1h 55m |
| 2026-07-18 | N2039R | - | Jul 18, 02:19 UTC | Jul 18, 04:50 UTC | 2h 31m |
| 2026-07-16 | N2039R | LNS → LNS | Jul 16, 01:40 UTC | Jul 16, 02:10 UTC | 30m |
| 2026-07-12 | N2039R | - | Jul 12, 22:45 UTC | Jul 13, 00:15 UTC | 1h 30m |
| 2026-07-12 | N2039R | - | Jul 12, 13:05 UTC | Jul 12, 14:30 UTC | 1h 25m |
| 2026-06-30 | N2039R | - | Jun 30, 16:35 UTC | Jun 30, 16:40 UTC | 5m |
| 2026-06-30 | N2039R | LNS → LNS | Jun 30, 16:15 UTC | Jun 30, 16:30 UTC | 15m |
| 2026-06-29 | N2039R | - | Jun 29, 00:00 UTC | Jun 29, 01:29 UTC | 1h 30m |
| 2026-06-28 | N2039R | - | Jun 28, 13:04 UTC | Jun 28, 14:25 UTC | 1h 20m |
| 2026-06-24 | N2039R | - | Jun 24, 19:49 UTC | Jun 24, 22:29 UTC | 2h 40m |
| 2026-06-24 | N2039R | - | Jun 24, 18:34 UTC | Jun 24, 18:55 UTC | 20m |
| 2026-06-24 | N2039R | LNS → MVY | Jun 24, 14:15 UTC | Jun 24, 16:54 UTC | 2h 40m |
| 2026-06-23 | N2039R | - | Jun 23, 02:09 UTC | Jun 23, 03:25 UTC | 1h 15m |
| 2026-06-22 | N2039R | - | Jun 22, 22:05 UTC | Jun 22, 22:54 UTC | 50m |
| 2026-06-21 | N2039R | - | Jun 21, 19:45 UTC | Jun 21, 21:14 UTC | 1h 30m |
| 2026-06-21 | N2039R | - | Jun 21, 13:04 UTC | Jun 21, 14:34 UTC | 1h 30m |
| 2026-06-14 | N2039R | - | Jun 14, 19:50 UTC | Jun 14, 21:10 UTC | 1h 20m |
| 2026-06-14 | N2039R | - | Jun 14, 13:35 UTC | Jun 14, 15:15 UTC | 1h 40m |
| 2026-06-07 | N2039R | - | Jun 7, 19:55 UTC | Jun 7, 21:30 UTC | 1h 35m |
| 2026-06-07 | N2039R | - | Jun 7, 13:20 UTC | Jun 7, 14:50 UTC | 1h 30m |
| 2026-06-04 | N2039R | LNS → LNS | Jun 4, 01:55 UTC | Jun 4, 02:00 UTC | 5m |
| 2026-05-31 | N2039R | - | May 31, 19:50 UTC | May 31, 21:20 UTC | 1h 30m |
| 2026-05-31 | N2039R | - | May 31, 13:20 UTC | May 31, 14:45 UTC | 1h 25m |
| 2026-05-25 | N2039R | - | May 25, 23:10 UTC | May 26, 00:39 UTC | 1h 30m |
| 2026-05-25 | N2039R | LNS → ROC | May 25, 18:00 UTC | May 25, 20:40 UTC | 2h 40m |
| 2026-05-24 | N2039R | - | May 24, 23:00 UTC | May 24, 23:46 UTC | 46m |
| 2026-05-24 | N2039R | - | May 24, 13:10 UTC | May 24, 14:45 UTC | 1h 35m |
| 2026-05-17 | N2039R | - | May 17, 20:05 UTC | May 17, 21:30 UTC | 1h 25m |
| 2026-05-17 | N2039R | - | May 17, 13:25 UTC | May 17, 14:55 UTC | 1h 30m |
| 2026-05-15 | N2039R | - | May 15, 19:45 UTC | May 15, 20:10 UTC | 25m |
| 2026-05-15 | N2039R | - | May 15, 16:20 UTC | May 15, 17:05 UTC | 45m |
| 2026-05-10 | N2039R | - | May 10, 20:05 UTC | May 10, 21:25 UTC | 1h 20m |
| 2026-05-10 | N2039R | - | May 10, 13:35 UTC | May 10, 14:59 UTC | 1h 25m |
| 2026-05-07 | N2039R | LNS → LNS | May 7, 01:25 UTC | May 7, 02:45 UTC | 1h 20m |
| 2026-05-03 | N2039R | - | May 3, 21:44 UTC | May 3, 23:15 UTC | 1h 30m |
| 2026-05-03 | N2039R | - | May 3, 13:15 UTC | May 3, 14:40 UTC | 1h 25m |
| 2026-04-28 | N2039R | - | Apr 28, 21:05 UTC | Apr 28, 23:45 UTC | 2h 40m |
| 2026-04-27 | N2039R | LNS → LFN | Apr 27, 17:05 UTC | Apr 27, 19:20 UTC | 2h 15m |
| 2026-04-26 | N2039R | - | Apr 26, 22:40 UTC | Apr 27, 00:20 UTC | 1h 40m |
| 2026-04-26 | N2039R | - | Apr 26, 13:20 UTC | Apr 26, 14:50 UTC | 1h 30m |
| 2026-04-17 | N2039R | LNS → LNS | Apr 17, 15:20 UTC | Apr 17, 16:05 UTC | 45m |
| 2026-04-16 | N2039R | - | Apr 16, 19:15 UTC | Apr 16, 19:25 UTC | 10m |
| 2026-04-16 | N2039R | - | Apr 16, 17:50 UTC | Apr 16, 19:10 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 N2039R page for operator, model, and routing details .