sensors Mode-S transponder
A3711A
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N3203J · AIRBUS A220-300 · operated by JETBLUE AIRWAYS CORPORATION
- Hex
- A3711A
- Octal
- 50670432
- Decimal
- 10,711,322
- Country
- US
- Tail
- N3203J
- Type
- BCS3
- Flights observed
- 306
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address A3711A 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 |
|---|---|---|---|
| JBU896 | JetBlue Airways | 4 | 2026-04-17 |
| JBU506 | - | 4 | 2026-07-10 |
| JBU2769 | - | 4 | 2026-07-06 |
| JBU2768 | - | 4 | 2026-07-06 |
| JBU266 | JetBlue Airways | 4 | 2026-04-23 |
| JBU265 | JetBlue Airways | 4 | 2026-04-23 |
| JBU1303 | - | 4 | 2026-04-14 |
| JBU1281 | JetBlue Airways | 4 | 2026-05-29 |
| JBU591 | - | 3 | 2026-07-01 |
| JBU502 | JetBlue Airways | 3 | 2026-04-14 |
| JBU312 | JetBlue Airways | 3 | 2026-07-03 |
| JBU311 | - | 3 | 2026-07-03 |
| JBU2974 | - | 3 | 2026-07-12 |
| JBU2468 | - | 3 | 2026-07-08 |
| JBU2467 | - | 3 | 2026-07-08 |
| JBU2005 | JetBlue Airways | 3 | 2026-05-12 |
| JBU1941 | - | 3 | 2026-04-15 |
| JBU1449 | JetBlue Airways | 3 | 2026-06-04 |
| JBU1282 | JetBlue Airways | 3 | 2026-06-08 |
| JBU953 | - | 2 | 2026-07-14 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | JBU1154 | PBI → JFK | Jul 14, 14:55 UTC | Jul 14, 17:20 UTC | 2h 25m |
| 2026-07-14 | JBU1154 | - | Jul 14, 14:55 UTC | Jul 14, 19:50 UTC | 4h 56m |
| 2026-07-14 | JBU953 | - | Jul 14, 10:35 UTC | Jul 14, 12:45 UTC | 2h 10m |
| 2026-07-13 | JBU609 | - | Jul 13, 19:10 UTC | Jul 14, 03:30 UTC | 8h 20m |
| 2026-07-13 | JBU1868 | - | Jul 13, 14:25 UTC | Jul 13, 16:30 UTC | 2h 5m |
| 2026-07-13 | JBU1867 | - | Jul 13, 10:55 UTC | Jul 13, 13:00 UTC | 2h 5m |
| 2026-07-12 | JBU2974 | - | Jul 12, 16:15 UTC | Jul 12, 18:20 UTC | 2h 5m |
| 2026-07-12 | JBU2974 | BNA → JFK | Jul 12, 16:15 UTC | Jul 13, 14:30 UTC | 22h 16m |
| 2026-07-12 | JBU2973 | JFK → BNA | Jul 12, 13:01 UTC | Jul 12, 14:55 UTC | 1h 55m |
| 2026-07-11 | JBU1530 | RSW → JFK | Jul 11, 16:45 UTC | Jul 12, 16:30 UTC | 23h 46m |
| 2026-07-11 | JBU1529 | JFK → RSW | Jul 11, 12:53 UTC | Jul 12, 10:55 UTC | 22h 3m |
| 2026-07-11 | JBU845 | BOS → SYR | Jul 11, 02:03 UTC | Jul 12, 00:30 UTC | 22h 28m |
| 2026-07-10 | JBU782 | RIC → BOS | Jul 10, 23:04 UTC | Jul 11, 22:15 UTC | 23h 12m |
| 2026-07-10 | JBU493 | BOS → DEN | Jul 10, 10:40 UTC | Jul 11, 10:30 UTC | 23h 51m |
| 2026-07-10 | JBU506 | BNA → BOS | Jul 10, 01:50 UTC | Jul 11, 00:15 UTC | 22h 26m |
| 2026-07-09 | JBU507 | BOS → BNA | Jul 9, 22:39 UTC | Jul 10, 22:00 UTC | 23h 22m |
| 2026-07-09 | JBU494 | DEN → BOS | Jul 9, 17:25 UTC | Jul 9, 20:45 UTC | 3h 20m |
| 2026-07-09 | JBU494 | DEN → BOS | Jul 9, 17:23 UTC | Jul 10, 16:30 UTC | 23h 8m |
| 2026-07-09 | JBU493 | BOS → DEN | Jul 9, 10:55 UTC | Jul 9, 15:05 UTC | 4h 10m |
| 2026-07-08 | JBU2468 | - | Jul 8, 23:30 UTC | Jul 9, 01:15 UTC | 1h 45m |
| 2026-07-08 | JBU2467 | - | Jul 8, 19:50 UTC | Jul 8, 22:15 UTC | 2h 25m |
| 2026-07-08 | JBU204 | - | Jul 8, 12:55 UTC | Jul 8, 17:55 UTC | 5h 0m |
| 2026-07-07 | JBU1595 | - | Jul 7, 18:15 UTC | Jul 7, 19:15 UTC | 1h 0m |
| 2026-07-07 | JBU1595 | BOS → PUJ | Jul 7, 18:14 UTC | Jul 8, 13:30 UTC | 19h 17m |
| 2026-07-07 | JBU150 | - | Jul 7, 14:25 UTC | Jul 7, 16:20 UTC | 1h 55m |
| 2026-07-07 | JBU741 | JFK → SAV | Jul 7, 10:55 UTC | Jul 7, 12:35 UTC | 1h 40m |
| 2026-07-06 | JBU609 | JFK → SDQ | Jul 6, 19:17 UTC | Jul 6, 19:55 UTC | 38m |
| 2026-07-06 | JBU2769 | CLE → JFK | Jul 6, 10:32 UTC | Jul 7, 04:00 UTC | 17h 29m |
| 2026-07-06 | JBU2768 | JFK → CLE | Jul 6, 05:54 UTC | Jul 7, 04:00 UTC | 22h 7m |
| 2026-07-05 | JBU897 | - | Jul 5, 18:55 UTC | Jul 5, 21:15 UTC | 2h 20m |
| 2026-07-05 | JBU897 | BOS → ATL | Jul 5, 18:53 UTC | Jul 6, 11:45 UTC | 16h 53m |
| 2026-07-05 | JBU1310 | - | Jul 5, 15:05 UTC | Jul 5, 17:15 UTC | 2h 10m |
| 2026-07-05 | JBU2322 | - | Jul 5, 11:30 UTC | Jul 5, 13:45 UTC | 2h 15m |
| 2026-07-04 | JBU716 | BUF → BOS | Jul 4, 10:07 UTC | Jul 5, 08:30 UTC | 22h 23m |
| 2026-07-04 | JBU715 | BOS → BUF | Jul 4, 02:45 UTC | Jul 4, 03:50 UTC | 1h 5m |
| 2026-07-04 | JBU715 | BOS → BUF | Jul 4, 02:45 UTC | Jul 5, 02:30 UTC | 23h 45m |
| 2026-07-03 | JBU2468 | CHS → BOS | Jul 3, 22:50 UTC | Jul 4, 00:45 UTC | 1h 55m |
| 2026-07-03 | JBU2467 | - | Jul 3, 19:30 UTC | Jul 3, 21:20 UTC | 1h 50m |
| 2026-07-03 | JBU312 | ORD → BOS | Jul 3, 16:15 UTC | Jul 3, 18:05 UTC | 1h 50m |
| 2026-07-03 | JBU311 | BOS → ORD | Jul 3, 12:30 UTC | Jul 3, 14:45 UTC | 2h 15m |
| 2026-07-03 | JBU207 | PQI → BOS | Jul 3, 10:00 UTC | Jul 3, 10:50 UTC | 50m |
| 2026-07-02 | JBU204 | BDA → BOS | Jul 2, 15:56 UTC | Jul 3, 14:30 UTC | 22h 34m |
| 2026-07-02 | JBU203 | - | Jul 2, 12:45 UTC | Jul 2, 13:20 UTC | 35m |
| 2026-07-02 | JBU203 | BOS → BDA | Jul 2, 12:41 UTC | Jul 3, 12:30 UTC | 23h 49m |
| 2026-07-02 | JBU248 | SLC → BOS | Jul 2, 07:20 UTC | Jul 2, 11:25 UTC | 4h 5m |
| 2026-07-02 | JBU247 | - | Jul 2, 01:25 UTC | Jul 2, 06:20 UTC | 4h 55m |
| 2026-07-02 | JBU247 | BOS → BOS | Jul 2, 00:05 UTC | Jul 2, 00:10 UTC | 5m |
| 2026-07-01 | JBU400 | MSY → BOS | Jul 1, 20:35 UTC | Jul 1, 23:40 UTC | 3h 5m |
| 2026-07-01 | JBU401 | - | Jul 1, 14:50 UTC | Jul 1, 17:45 UTC | 2h 55m |
| 2026-07-01 | JBU1192 | TPA → BOS | Jul 1, 10:45 UTC | Jul 1, 13:25 UTC | 2h 40m |
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 N3203J page for operator, model, and routing details .