sensors Mode-S transponder
ABFE7E
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N872HL · BOMBARDIER BD-100 Challenger 350 · operated by HL AIRCRAFT LLC
- Hex
- ABFE7E
- Octal
- 52777176
- Decimal
- 11,271,806
- Country
- US
- Tail
- N872HL
- Type
- CL35
- Flights observed
- 36
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- 21d ago
Last known position
Country allocation
The ICAO 24-bit address ABFE7E 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 |
|---|---|---|---|
| HOB2 | - | 36 | 2026-07-22 |
Recent flights last 36
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-22 | HOB2 | - | Jul 22, 12:25 UTC | Jul 22, 14:15 UTC | 1h 50m |
| 2026-07-21 | HOB2 | - | Jul 21, 12:35 UTC | Jul 21, 14:15 UTC | 1h 40m |
| 2026-07-20 | HOB2 | TEB → OKC | Jul 20, 00:25 UTC | Jul 20, 03:20 UTC | 2h 55m |
| 2026-07-17 | HOB2 | - | Jul 17, 15:44 UTC | Jul 17, 18:29 UTC | 2h 45m |
| 2026-07-17 | HOB2 | TKF → OKC | Jul 17, 12:30 UTC | Jul 17, 15:10 UTC | 2h 40m |
| 2026-07-15 | HOB2 | - | Jul 15, 21:30 UTC | Jul 16, 00:00 UTC | 2h 30m |
| 2026-07-14 | HOB2 | - | Jul 14, 17:30 UTC | Jul 14, 18:55 UTC | 1h 25m |
| 2026-07-13 | HOB2 | - | Jul 13, 13:45 UTC | Jul 13, 15:45 UTC | 2h 0m |
| 2026-07-11 | HOB2 | - | Jul 11, 13:30 UTC | Jul 11, 19:00 UTC | 5h 30m |
| 2026-07-08 | HOB2 | - | Jul 8, 21:25 UTC | Jul 8, 22:05 UTC | 40m |
| 2026-07-08 | HOB2 | - | Jul 8, 20:00 UTC | Jul 8, 20:40 UTC | 40m |
| 2026-07-05 | HOB2 | IAD → OKC | Jul 5, 14:55 UTC | Jul 5, 17:25 UTC | 2h 30m |
| 2026-07-03 | HOB2 | - | Jul 3, 15:20 UTC | Jul 3, 17:40 UTC | 2h 20m |
| 2026-06-30 | HOB2 | - | Jun 30, 18:10 UTC | Jun 30, 19:50 UTC | 1h 40m |
| 2026-06-29 | HOB2 | OKC → CVG | Jun 29, 13:54 UTC | Jun 29, 15:34 UTC | 1h 40m |
| 2026-06-17 | HOB2 | - | Jun 17, 16:00 UTC | Jun 17, 17:50 UTC | 1h 50m |
| 2026-06-15 | HOB2 | - | Jun 15, 13:50 UTC | Jun 15, 15:15 UTC | 1h 25m |
| 2026-06-10 | HOB2 | - | Jun 10, 15:30 UTC | Jun 10, 17:15 UTC | 1h 45m |
| 2026-06-08 | HOB2 | - | Jun 8, 13:45 UTC | Jun 8, 15:25 UTC | 1h 40m |
| 2026-06-06 | HOB2 | - | Jun 6, 19:10 UTC | Jun 6, 20:49 UTC | 1h 40m |
| 2026-06-05 | HOB2 | - | Jun 5, 19:30 UTC | Jun 5, 20:55 UTC | 1h 25m |
| 2026-06-05 | HOB2 | - | Jun 5, 11:35 UTC | Jun 5, 13:55 UTC | 2h 20m |
| 2026-06-03 | HOB2 | - | Jun 3, 16:30 UTC | Jun 3, 18:10 UTC | 1h 40m |
| 2026-06-01 | HOB2 | - | Jun 1, 13:55 UTC | Jun 1, 15:30 UTC | 1h 35m |
| 2026-05-29 | HOB2 | - | May 29, 17:05 UTC | May 29, 17:55 UTC | 50m |
| 2026-05-28 | HOB2 | - | May 28, 22:50 UTC | May 29, 01:00 UTC | 2h 10m |
| 2026-05-28 | HOB2 | - | May 28, 13:25 UTC | May 28, 16:00 UTC | 2h 35m |
| 2026-05-15 | HOB2 | COS → OKC | May 15, 00:15 UTC | May 15, 01:15 UTC | 1h 0m |
| 2026-05-13 | HOB2 | OKC → COS | May 13, 13:31 UTC | May 13, 14:45 UTC | 1h 15m |
| 2026-05-08 | HOB2 | - | May 8, 18:45 UTC | May 8, 19:45 UTC | 1h 0m |
| 2026-05-08 | HOB2 | - | May 8, 14:30 UTC | May 8, 15:05 UTC | 35m |
| 2026-04-29 | HOB2 | - | Apr 29, 16:30 UTC | Apr 29, 18:25 UTC | 1h 55m |
| 2026-04-27 | HOB2 | - | Apr 27, 13:50 UTC | Apr 27, 15:35 UTC | 1h 45m |
| 2026-04-19 | HOB2 | - | Apr 19, 20:10 UTC | Apr 19, 22:30 UTC | 2h 20m |
| 2026-04-19 | HOB2 | - | Apr 19, 15:50 UTC | Apr 19, 18:45 UTC | 2h 55m |
| 2026-04-17 | HOB2 | - | Apr 17, 19:25 UTC | Apr 17, 19:55 UTC | 30m |
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 N872HL page for operator, model, and routing details .