sensors Mode-S transponder
A6C781
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N536JB · AIRBUS A-320 · operated by UMB BANK NA TRUSTEE
- Hex
- A6C781
- Octal
- 51543601
- Decimal
- 10,930,049
- Country
- US
- Tail
- N536JB
- Type
- A320
- Flights observed
- 297
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address A6C781 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 20 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| JBU471 | - | 5 | 2026-07-12 |
| JBU2072 | - | 5 | 2026-06-28 |
| JBU1742 | - | 5 | 2026-07-01 |
| JBU1698 | JetBlue Airways | 5 | 2026-06-10 |
| JBU635 | - | 4 | 2026-07-01 |
| JBU2895 | - | 4 | 2026-07-05 |
| JBU1798 | JetBlue Airways | 4 | 2026-04-17 |
| JBU1743 | - | 4 | 2026-07-01 |
| JBU1265 | JetBlue Airways | 4 | 2026-06-05 |
| JBU87 | - | 3 | 2026-07-05 |
| JBU472 | JetBlue Airways | 3 | 2026-04-21 |
| JBU2154 | JetBlue Airways | 3 | 2026-06-13 |
| JBU2119 | - | 3 | 2026-07-11 |
| JBU2097 | JetBlue Airways | 3 | 2026-06-10 |
| JBU2020 | - | 3 | 2026-07-11 |
| JBU1906 | JetBlue Airways | 3 | 2026-05-30 |
| JBU1797 | JetBlue Airways | 3 | 2026-04-17 |
| JBU1471 | - | 3 | 2026-07-11 |
| JBU1433 | JetBlue Airways | 3 | 2026-06-09 |
| JBU1368 | - | 3 | 2026-06-20 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | JBU2148 | - | Jul 13, 13:30 UTC | Jul 13, 15:00 UTC | 1h 30m |
| 2026-07-13 | JBU2148 | CLT → FLL | Jul 13, 13:26 UTC | Jul 14, 02:15 UTC | 12h 50m |
| 2026-07-13 | JBU2149 | - | Jul 13, 02:10 UTC | Jul 13, 03:45 UTC | 1h 35m |
| 2026-07-12 | JBU471 | LGA → FLL | Jul 12, 20:45 UTC | Jul 12, 23:05 UTC | 2h 20m |
| 2026-07-11 | JBU2119 | ORH → FLL | Jul 11, 22:40 UTC | Jul 12, 22:15 UTC | 23h 36m |
| 2026-07-11 | JBU2020 | - | Jul 11, 18:40 UTC | Jul 11, 21:10 UTC | 2h 30m |
| 2026-07-11 | JBU2020 | FLL → ORH | Jul 11, 18:38 UTC | Jul 12, 18:15 UTC | 23h 38m |
| 2026-07-11 | JBU1471 | LGA → FLL | Jul 11, 12:20 UTC | Jul 11, 14:45 UTC | 2h 25m |
| 2026-07-10 | JBU598 | - | Jul 10, 18:40 UTC | Jul 10, 20:45 UTC | 2h 5m |
| 2026-07-10 | JBU499 | LGA → MCO | Jul 10, 14:25 UTC | Jul 10, 16:30 UTC | 2h 5m |
| 2026-07-10 | JBU1072 | - | Jul 10, 10:25 UTC | Jul 10, 12:45 UTC | 2h 20m |
| 2026-07-09 | JBU1473 | - | Jul 9, 14:40 UTC | Jul 9, 16:10 UTC | 1h 30m |
| 2026-07-09 | JBU1473 | FLL → PUJ | Jul 9, 14:39 UTC | Jul 10, 14:15 UTC | 23h 37m |
| 2026-07-08 | JBU1680 | - | Jul 8, 17:55 UTC | Jul 8, 18:15 UTC | 20m |
| 2026-07-08 | JBU1197 | - | Jul 8, 13:50 UTC | Jul 8, 16:25 UTC | 2h 35m |
| 2026-07-08 | JBU1197 | PVD → FLL | Jul 8, 13:45 UTC | Jul 9, 01:55 UTC | 12h 11m |
| 2026-07-08 | JBU1075 | MCO → PVD | Jul 8, 01:55 UTC | Jul 8, 04:15 UTC | 2h 20m |
| 2026-07-07 | JBU730 | MCO → MCO | Jul 7, 18:35 UTC | Jul 8, 00:25 UTC | 5h 50m |
| 2026-07-07 | JBU2695 | - | Jul 7, 15:05 UTC | Jul 7, 17:15 UTC | 2h 10m |
| 2026-07-06 | JBU814 | - | Jul 6, 11:15 UTC | Jul 6, 13:55 UTC | 2h 40m |
| 2026-07-06 | JBU814 | FLL → HPN | Jul 6, 11:12 UTC | Jul 7, 02:40 UTC | 15h 28m |
| 2026-07-06 | JBU88 | - | Jul 6, 00:50 UTC | Jul 6, 03:35 UTC | 2h 45m |
| 2026-07-05 | JBU87 | - | Jul 5, 21:00 UTC | Jul 5, 23:35 UTC | 2h 35m |
| 2026-07-05 | JBU1474 | - | Jul 5, 17:30 UTC | Jul 5, 18:00 UTC | 30m |
| 2026-07-05 | JBU2895 | - | Jul 5, 10:55 UTC | Jul 5, 16:35 UTC | 5h 40m |
| 2026-07-04 | JBU322 | PBI → BOS | Jul 4, 11:10 UTC | Jul 5, 02:45 UTC | 15h 35m |
| 2026-07-03 | JBU24 | PBI → DCA | Jul 3, 18:37 UTC | Jul 4, 17:10 UTC | 22h 34m |
| 2026-07-03 | JBU2143 | - | Jul 3, 14:50 UTC | Jul 3, 17:05 UTC | 2h 15m |
| 2026-07-03 | JBU2143 | EWR → PBI | Jul 3, 14:49 UTC | Jul 4, 14:15 UTC | 23h 27m |
| 2026-07-03 | JBU306 | - | Jul 3, 11:00 UTC | Jul 3, 13:15 UTC | 2h 15m |
| 2026-07-02 | JBU1754 | SJU → FLL | Jul 2, 14:58 UTC | Jul 3, 14:15 UTC | 23h 18m |
| 2026-07-01 | JBU1743 | - | Jul 1, 23:35 UTC | Jul 2, 00:00 UTC | 25m |
| 2026-07-01 | JBU1743 | - | Jul 1, 21:10 UTC | Jul 1, 22:00 UTC | 50m |
| 2026-07-01 | JBU1743 | JAX → SJU | Jul 1, 21:10 UTC | Jul 2, 17:45 UTC | 20h 35m |
| 2026-07-01 | JBU1742 | - | Jul 1, 18:20 UTC | Jul 1, 19:30 UTC | 1h 10m |
| 2026-07-01 | JBU1742 | - | Jul 1, 16:40 UTC | Jul 1, 16:50 UTC | 10m |
| 2026-07-01 | JBU635 | - | Jul 1, 14:40 UTC | Jul 1, 15:00 UTC | 20m |
| 2026-07-01 | JBU635 | - | Jul 1, 11:10 UTC | Jul 1, 12:25 UTC | 1h 15m |
| 2026-07-01 | JBU102 | JFK → BUF | Jul 1, 06:15 UTC | Jul 1, 07:05 UTC | 50m |
| 2026-07-01 | JBU1284 | MCO → JFK | Jul 1, 02:50 UTC | Jul 1, 05:00 UTC | 2h 10m |
| 2026-06-30 | JBU2937 | BDL → MCO | Jun 30, 21:45 UTC | Jul 1, 00:10 UTC | 2h 25m |
| 2026-06-30 | JBU1142 | - | Jun 30, 14:55 UTC | Jun 30, 17:35 UTC | 2h 40m |
| 2026-06-30 | JBU1067 | - | Jun 30, 11:00 UTC | Jun 30, 13:20 UTC | 2h 20m |
| 2026-06-29 | JBU1468 | - | Jun 29, 22:59 UTC | Jun 30, 01:30 UTC | 2h 31m |
| 2026-06-29 | JBU545 | - | Jun 29, 18:19 UTC | Jun 29, 20:40 UTC | 2h 20m |
| 2026-06-29 | JBU444 | - | Jun 29, 14:19 UTC | Jun 29, 16:55 UTC | 2h 35m |
| 2026-06-28 | JBU2072 | BQN → FLL | Jun 28, 20:13 UTC | Jun 29, 16:55 UTC | 20h 42m |
| 2026-06-28 | JBU2072 | - | Jun 28, 17:04 UTC | Jun 28, 22:24 UTC | 5h 20m |
| 2026-06-28 | JBU2465 | BUF → FLL | Jun 28, 13:04 UTC | Jun 28, 15:55 UTC | 2h 50m |
| 2026-06-28 | JBU1602 | JFK → BUF | Jun 28, 11:04 UTC | Jun 28, 11:59 UTC | 55m |
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 N536JB page for operator, model, and routing details .