sensors Mode-S transponder
A37517
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N3215J · operated by JETBLUE AIRWAYS CORP
- Hex
- A37517
- Octal
- 50672427
- Decimal
- 10,712,343
- Country
- US
- Tail
- N3215J
- Type
- BCS3
- Flights observed
- 299
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address A37517 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 |
|---|---|---|---|
| JBU776 | JetBlue Airways | 5 | 2026-04-24 |
| JBU226 | JetBlue Airways | 5 | 2026-05-12 |
| JBU865 | JetBlue Airways | 4 | 2026-04-20 |
| JBU70 | JetBlue Airways | 4 | 2026-06-05 |
| JBU400 | JetBlue Airways | 4 | 2026-06-20 |
| JBU1955 | - | 4 | 2026-06-23 |
| JBU1088 | JetBlue Airways | 4 | 2026-04-18 |
| JBU859 | JetBlue Airways | 3 | 2026-05-20 |
| JBU797 | JetBlue Airways | 3 | 2026-05-18 |
| JBU775 | JetBlue Airways | 3 | 2026-04-16 |
| JBU741 | JetBlue Airways | 3 | 2026-06-17 |
| JBU618 | JetBlue Airways | 3 | 2026-05-18 |
| JBU401 | - | 3 | 2026-06-20 |
| JBU379 | JetBlue Airways | 3 | 2026-04-25 |
| JBU2725 | JetBlue Airways | 3 | 2026-05-12 |
| JBU2366 | JetBlue Airways | 3 | 2026-04-23 |
| JBU164 | JetBlue Airways | 3 | 2026-05-30 |
| JBU1500 | - | 3 | 2026-06-24 |
| JBU1499 | - | 3 | 2026-07-14 |
| JBU1495 | JetBlue Airways | 3 | 2026-05-09 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | JBU1499 | BOS → DAB | Jul 14, 14:45 UTC | Jul 15, 05:30 UTC | 14h 45m |
| 2026-07-14 | JBU1192 | TPA → BOS | Jul 14, 10:35 UTC | Jul 14, 13:30 UTC | 2h 55m |
| 2026-07-14 | JBU1192 | TPA → BOS | Jul 14, 10:34 UTC | Jul 15, 05:30 UTC | 18h 56m |
| 2026-07-13 | JBU1198 | PIT → JFK | Jul 13, 10:30 UTC | Jul 13, 11:40 UTC | 1h 10m |
| 2026-07-13 | JBU1198 | PIT → JFK | Jul 13, 10:30 UTC | Jul 14, 03:25 UTC | 16h 56m |
| 2026-07-13 | JBU1195 | JFK → PIT | Jul 13, 02:45 UTC | Jul 13, 03:55 UTC | 1h 10m |
| 2026-07-12 | JBU406 | - | Jul 12, 22:40 UTC | Jul 13, 00:30 UTC | 1h 50m |
| 2026-07-12 | JBU405 | - | Jul 12, 19:01 UTC | Jul 12, 21:05 UTC | 2h 5m |
| 2026-07-12 | JBU2769 | - | Jul 12, 10:40 UTC | Jul 12, 11:45 UTC | 1h 5m |
| 2026-07-12 | JBU2768 | JFK → CLE | Jul 12, 05:05 UTC | Jul 12, 06:15 UTC | 1h 10m |
| 2026-07-12 | JBU342 | SAV → JFK | Jul 12, 01:50 UTC | Jul 12, 03:30 UTC | 1h 40m |
| 2026-07-11 | JBU341 | JFK → SAV | Jul 11, 21:20 UTC | Jul 11, 23:05 UTC | 1h 45m |
| 2026-07-11 | JBU59 | JFK → JFK | Jul 11, 09:45 UTC | Jul 11, 18:00 UTC | 8h 15m |
| 2026-07-10 | JBU2901 | - | Jul 10, 19:45 UTC | Jul 10, 20:45 UTC | 1h 0m |
| 2026-07-10 | JBU2902 | JFK → BUF | Jul 10, 17:35 UTC | Jul 10, 18:30 UTC | 55m |
| 2026-07-10 | JBU1515 | JFK → SFO | Jul 10, 14:50 UTC | Jul 10, 15:30 UTC | 40m |
| 2026-07-09 | JBU771 | BOS → CUN | Jul 9, 15:03 UTC | Jul 10, 03:30 UTC | 12h 28m |
| 2026-07-09 | JBU771 | BOS → CUN | Jul 9, 15:05 UTC | Jul 9, 19:30 UTC | 4h 25m |
| 2026-07-08 | JBU419 | JFK → ATL | Jul 8, 19:23 UTC | Jul 9, 17:45 UTC | 22h 22m |
| 2026-07-08 | JBU2066 | RSW → BOS | Jul 8, 02:41 UTC | Jul 9, 00:50 UTC | 22h 9m |
| 2026-07-07 | JBU311 | BOS → ORD | Jul 7, 13:22 UTC | Jul 8, 05:50 UTC | 16h 29m |
| 2026-07-06 | JBU1596 | - | Jul 6, 18:20 UTC | Jul 7, 02:50 UTC | 8h 30m |
| 2026-07-05 | JBU349 | BOS → SAV | Jul 5, 23:19 UTC | Jul 6, 18:50 UTC | 19h 31m |
| 2026-07-05 | JBU349 | BOS → SAV | Jul 5, 23:20 UTC | Jul 6, 01:30 UTC | 2h 10m |
| 2026-07-04 | JBU1263 | BOS → TVC | Jul 4, 20:27 UTC | Jul 5, 16:20 UTC | 19h 54m |
| 2026-07-04 | JBU910 | NAS → BOS | Jul 4, 15:34 UTC | Jul 5, 04:05 UTC | 12h 31m |
| 2026-07-04 | JBU909 | - | Jul 4, 11:15 UTC | Jul 4, 13:40 UTC | 2h 25m |
| 2026-07-04 | JBU909 | BOS → NAS | Jul 4, 11:11 UTC | Jul 5, 04:05 UTC | 16h 54m |
| 2026-07-04 | JBU2322 | BOS → BOS | Jul 4, 06:20 UTC | Jul 4, 06:25 UTC | 5m |
| 2026-07-04 | JBU2322 | - | Jul 4, 00:00 UTC | Jul 4, 02:35 UTC | 2h 35m |
| 2026-07-03 | JBU2321 | - | Jul 3, 19:55 UTC | Jul 3, 22:40 UTC | 2h 45m |
| 2026-07-03 | JBU1337 | BOS → DTW | Jul 3, 01:05 UTC | Jul 3, 02:40 UTC | 1h 35m |
| 2026-07-03 | JBU1337 | BOS → DTW | Jul 3, 01:05 UTC | Jul 3, 22:40 UTC | 21h 36m |
| 2026-07-02 | JBU2954 | DCA → BOS | Jul 2, 22:05 UTC | Jul 2, 23:15 UTC | 1h 10m |
| 2026-07-02 | JBU2324 | MCO → DCA | Jul 2, 18:00 UTC | Jul 2, 19:45 UTC | 1h 45m |
| 2026-07-02 | JBU51 | MCO → MCO | Jul 2, 09:15 UTC | Jul 2, 15:45 UTC | 6h 30m |
| 2026-07-01 | JBU51 | BOS → MCO | Jul 1, 16:36 UTC | Jul 2, 15:45 UTC | 23h 9m |
| 2026-07-01 | JBU2066 | RSW → BOS | Jul 1, 00:16 UTC | Jul 1, 19:35 UTC | 19h 20m |
| 2026-06-30 | JBU2065 | BOS → RSW | Jun 30, 19:59 UTC | Jul 1, 19:35 UTC | 23h 37m |
| 2026-06-30 | JBU165 | - | Jun 30, 11:00 UTC | Jun 30, 13:45 UTC | 2h 45m |
| 2026-06-30 | JBU165 | BOS → RSW | Jun 30, 11:00 UTC | Jul 1, 09:45 UTC | 22h 45m |
| 2026-06-29 | JBU150 | SAV → BOS | Jun 29, 13:30 UTC | Jun 30, 11:45 UTC | 22h 16m |
| 2026-06-28 | JBU1539 | - | Jun 28, 21:20 UTC | Jun 28, 21:45 UTC | 25m |
| 2026-06-28 | JBU1538 | - | Jun 28, 19:09 UTC | Jun 28, 19:44 UTC | 35m |
| 2026-06-28 | JBU1538 | JFK → MVY | Jun 28, 19:09 UTC | Jun 29, 17:45 UTC | 22h 36m |
| 2026-06-28 | JBU1539 | - | Jun 28, 15:55 UTC | Jun 28, 16:29 UTC | 35m |
| 2026-06-27 | JBU1529 | JFK → RSW | Jun 27, 12:54 UTC | Jun 27, 21:50 UTC | 8h 56m |
| 2026-06-27 | JBU917 | BOS → JFK | Jun 27, 09:17 UTC | Jun 27, 21:50 UTC | 12h 33m |
| 2026-06-26 | JBU1097 | BOS → ATL | Jun 26, 12:42 UTC | Jun 27, 09:44 UTC | 21h 3m |
| 2026-06-25 | JBU2321 | BOS → PBI | Jun 25, 22:47 UTC | Jun 26, 21:45 UTC | 22h 58m |
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 N3215J page for operator, model, and routing details .