sensors Mode-S transponder
A2BDC9
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N276LJ · LEARJET 45 · operated by EXPEDITE AVIATION LLC, IBP AIRCRAFT LLC, EDWARDS LEAR 45 LLC
- Hex
- A2BDC9
- Octal
- 50536711
- Decimal
- 10,665,417
- Country
- US
- Tail
- N276LJ
- Type
- LJ45
- Flights observed
- 49
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- 4d ago
Last known position
Country allocation
The ICAO 24-bit address A2BDC9 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 |
|---|---|---|---|
| N276LJ | - | 49 | 2026-07-16 |
Recent flights last 49
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-16 | N276LJ | - | Jul 16, 21:50 UTC | Jul 16, 23:49 UTC | 2h 0m |
| 2026-07-16 | N276LJ | - | Jul 16, 19:50 UTC | Jul 16, 20:45 UTC | 55m |
| 2026-07-16 | N276LJ | - | Jul 16, 18:00 UTC | Jul 16, 19:14 UTC | 1h 15m |
| 2026-07-14 | N276LJ | - | Jul 14, 18:15 UTC | Jul 14, 21:10 UTC | 2h 55m |
| 2026-07-10 | N276LJ | SAV → CMH | Jul 10, 22:10 UTC | Jul 10, 23:30 UTC | 1h 20m |
| 2026-07-10 | N276LJ | - | Jul 10, 17:40 UTC | Jul 10, 20:50 UTC | 3h 10m |
| 2026-07-10 | N276LJ | - | Jul 10, 12:30 UTC | Jul 10, 15:15 UTC | 2h 45m |
| 2026-07-07 | N276LJ | - | Jul 7, 19:25 UTC | Jul 7, 22:05 UTC | 2h 40m |
| 2026-07-02 | N276LJ | - | Jul 2, 13:20 UTC | Jul 2, 16:00 UTC | 2h 40m |
| 2026-07-01 | N276LJ | - | Jul 1, 17:10 UTC | Jul 1, 19:45 UTC | 2h 35m |
| 2026-07-01 | N276LJ | - | Jul 1, 13:15 UTC | Jul 1, 15:55 UTC | 2h 40m |
| 2026-07-01 | N276LJ | - | Jul 1, 01:45 UTC | Jul 1, 03:00 UTC | 1h 15m |
| 2026-07-01 | N276LJ | - | Jul 1, 00:05 UTC | Jul 1, 01:10 UTC | 1h 5m |
| 2026-06-26 | N276LJ | - | Jun 26, 14:09 UTC | Jun 26, 17:00 UTC | 2h 50m |
| 2026-06-22 | N276LJ | - | Jun 22, 18:30 UTC | Jun 22, 19:49 UTC | 1h 20m |
| 2026-06-22 | N276LJ | - | Jun 22, 16:14 UTC | Jun 22, 17:20 UTC | 1h 5m |
| 2026-06-19 | N276LJ | - | Jun 19, 13:34 UTC | Jun 19, 14:29 UTC | 55m |
| 2026-06-19 | N276LJ | - | Jun 19, 12:19 UTC | Jun 19, 13:14 UTC | 55m |
| 2026-06-12 | N276LJ | RST → CMH | Jun 12, 18:01 UTC | Jun 12, 19:10 UTC | 1h 10m |
| 2026-06-11 | N276LJ | - | Jun 11, 14:15 UTC | Jun 11, 15:35 UTC | 1h 20m |
| 2026-06-05 | N276LJ | - | Jun 5, 14:05 UTC | Jun 5, 15:25 UTC | 1h 20m |
| 2026-06-03 | N276LJ | - | Jun 3, 13:30 UTC | Jun 3, 14:45 UTC | 1h 15m |
| 2026-05-28 | N276LJ | - | May 28, 16:55 UTC | May 28, 19:00 UTC | 2h 5m |
| 2026-05-28 | N276LJ | - | May 28, 15:05 UTC | May 28, 16:25 UTC | 1h 20m |
| 2026-05-27 | N276LJ | - | May 27, 19:50 UTC | May 28, 16:15 UTC | 20h 25m |
| 2026-05-26 | N276LJ | - | May 26, 20:09 UTC | May 26, 20:45 UTC | 35m |
| 2026-05-26 | N276LJ | - | May 26, 13:29 UTC | May 26, 16:10 UTC | 2h 40m |
| 2026-05-26 | N276LJ | - | May 26, 12:30 UTC | May 26, 13:04 UTC | 35m |
| 2026-05-26 | N276LJ | - | May 26, 10:29 UTC | May 26, 11:54 UTC | 1h 25m |
| 2026-05-25 | N276LJ | - | May 25, 19:30 UTC | May 25, 22:30 UTC | 3h 0m |
| 2026-05-25 | N276LJ | - | May 25, 17:30 UTC | May 25, 18:50 UTC | 1h 20m |
| 2026-05-24 | N276LJ | - | May 24, 17:50 UTC | May 24, 19:10 UTC | 1h 20m |
| 2026-05-24 | N276LJ | - | May 24, 16:05 UTC | May 24, 17:15 UTC | 1h 10m |
| 2026-05-24 | N276LJ | - | May 24, 15:10 UTC | May 24, 15:30 UTC | 20m |
| 2026-05-22 | N276LJ | - | May 22, 17:40 UTC | May 22, 19:00 UTC | 1h 20m |
| 2026-05-21 | N276LJ | CMH → CMH | May 21, 22:05 UTC | May 22, 01:05 UTC | 3h 0m |
| 2026-05-18 | N276LJ | - | May 18, 20:05 UTC | May 18, 22:00 UTC | 1h 55m |
| 2026-05-18 | N276LJ | - | May 18, 14:45 UTC | May 18, 16:50 UTC | 2h 5m |
| 2026-05-11 | N276LJ | - | May 11, 22:00 UTC | May 11, 22:35 UTC | 34m |
| 2026-05-11 | N276LJ | - | May 11, 18:50 UTC | May 11, 21:25 UTC | 2h 35m |
| 2026-05-11 | N276LJ | - | May 11, 15:45 UTC | May 11, 18:05 UTC | 2h 21m |
| 2026-05-10 | N276LJ | - | May 10, 16:00 UTC | May 10, 16:59 UTC | 1h 0m |
| 2026-05-07 | N276LJ | - | May 7, 17:40 UTC | May 7, 18:40 UTC | 1h 0m |
| 2026-04-26 | N276LJ | - | Apr 26, 19:50 UTC | Apr 26, 20:45 UTC | 55m |
| 2026-04-24 | N276LJ | - | Apr 24, 14:40 UTC | Apr 24, 15:30 UTC | 50m |
| 2026-04-16 | N276LJ | - | Apr 16, 20:40 UTC | Apr 16, 21:10 UTC | 30m |
| 2026-04-14 | N276LJ | - | Apr 14, 19:20 UTC | Apr 14, 19:55 UTC | 35m |
| 2026-04-13 | N276LJ | - | Apr 13, 19:20 UTC | Apr 13, 19:45 UTC | 25m |
| 2026-04-13 | N276LJ | - | Apr 13, 16:35 UTC | Apr 13, 16:55 UTC | 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 N276LJ page for operator, model, and routing details .