sensors Mode-S transponder
A37FB0
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N3241J · AIRBUS A220-300 · operated by JETBLUE AIRWAYS CORP
- Hex
- A37FB0
- Octal
- 50677660
- Decimal
- 10,715,056
- Country
- US
- Tail
- N3241J
- Type
- BCS3
- Flights observed
- 154
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 1h ago
Current position
Country allocation
The ICAO 24-bit address A37FB0 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 |
|---|---|---|---|
| JBU109 | JetBlue Airways | 5 | 2026-05-12 |
| JBU2784 | JetBlue Airways | 4 | 2026-05-20 |
| JBU883 | JetBlue Airways | 3 | 2026-05-20 |
| JBU541 | JetBlue Airways | 3 | 2026-04-25 |
| JBU392 | JetBlue Airways | 3 | 2026-04-16 |
| JBU2783 | JetBlue Airways | 3 | 2026-05-02 |
| JBU2064 | JetBlue Airways | 3 | 2026-04-14 |
| JBU2063 | JetBlue Airways | 3 | 2026-04-14 |
| JBU2007 | JetBlue Airways | 3 | 2026-04-30 |
| JBU1484 | JetBlue Airways | 3 | 2026-05-13 |
| JBU1310 | JetBlue Airways | 3 | 2026-05-12 |
| JBU940 | JetBlue Airways | 2 | 2026-04-26 |
| JBU854 | JetBlue Airways | 2 | 2026-05-15 |
| JBU68 | JetBlue Airways | 2 | 2026-04-17 |
| JBU591 | JetBlue Airways | 2 | 2026-04-24 |
| JBU550 | JetBlue Airways | 2 | 2026-04-29 |
| JBU513 | JetBlue Airways | 2 | 2026-05-10 |
| JBU418 | JetBlue Airways | 2 | 2026-05-13 |
| JBU401 | JetBlue Airways | 2 | 2026-04-18 |
| JBU400 | JetBlue Airways | 2 | 2026-04-18 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | JBU1786 | PIT → BOS | May 29, 20:50 UTC | May 30, 00:00 UTC | 3h 11m |
| 2026-05-29 | JBU312 | ORD → BOS | May 29, 15:25 UTC | May 29, 16:00 UTC | 35m |
| 2026-05-29 | JBU311 | BOS → ORD | May 29, 11:55 UTC | May 29, 14:20 UTC | 2h 25m |
| 2026-05-28 | JBU756 | AUA → JFK | May 28, 10:05 UTC | May 29, 07:25 UTC | 21h 20m |
| 2026-05-27 | JBU2065 | BOS → RSW | May 27, 23:19 UTC | May 28, 22:00 UTC | 22h 41m |
| 2026-05-27 | JBU1817 | JFK → POS | May 27, 11:15 UTC | May 27, 12:00 UTC | 45m |
| 2026-05-27 | JBU1817 | JFK → POS | May 27, 11:11 UTC | May 28, 10:00 UTC | 22h 49m |
| 2026-05-27 | JBU994 | DEN → BOS | May 27, 04:34 UTC | May 27, 08:00 UTC | 3h 25m |
| 2026-05-26 | JBU993 | BOS → DEN | May 26, 23:14 UTC | May 27, 03:09 UTC | 3h 55m |
| 2026-05-25 | JBU846 | LAX → JFK | May 25, 19:59 UTC | May 26, 17:59 UTC | 22h 1m |
| 2026-05-25 | JBU1585 | BOS → PIT | May 25, 12:03 UTC | May 26, 08:34 UTC | 20h 32m |
| 2026-05-25 | JBU1302 | PHX → BOS | May 25, 06:16 UTC | May 26, 04:10 UTC | 21h 54m |
| 2026-05-24 | JBU164 | SRQ → JFK | May 24, 16:30 UTC | May 24, 19:05 UTC | 2h 35m |
| 2026-05-24 | JBU164 | SRQ → JFK | May 24, 16:30 UTC | May 25, 16:00 UTC | 23h 31m |
| 2026-05-24 | JBU163 | JFK → SRQ | May 24, 12:45 UTC | May 24, 15:10 UTC | 2h 25m |
| 2026-05-24 | JBU359 | JFK → BUR | May 24, 04:45 UTC | May 24, 09:25 UTC | 4h 40m |
| 2026-05-23 | JBU243 | JFK → HAV | May 23, 13:01 UTC | May 24, 09:30 UTC | 20h 29m |
| 2026-05-23 | JBU955 | BOS → DCA | May 23, 02:56 UTC | May 24, 02:00 UTC | 23h 5m |
| 2026-05-22 | JBU1528 | POP → JFK | May 22, 22:14 UTC | May 23, 22:00 UTC | 23h 47m |
| 2026-05-22 | JBU485 | ROC → JFK | May 22, 15:03 UTC | May 23, 14:00 UTC | 22h 57m |
| 2026-05-22 | JBU186 | SAN → JFK | May 22, 13:15 UTC | May 22, 14:00 UTC | 45m |
| 2026-05-22 | JBU186 | SAN → JFK | May 22, 13:11 UTC | May 23, 10:50 UTC | 21h 39m |
| 2026-05-22 | JBU307 | IAD → FLL | May 22, 10:25 UTC | May 22, 11:15 UTC | 50m |
| 2026-05-22 | JBU308 | JFK → PWM | May 22, 04:35 UTC | May 22, 05:20 UTC | 45m |
| 2026-05-21 | JBU372 | FLL → LGA | May 21, 22:40 UTC | May 22, 02:30 UTC | 3h 50m |
| 2026-05-21 | JBU71 | JFK → SLC | May 21, 05:28 UTC | May 22, 02:30 UTC | 21h 3m |
| 2026-05-20 | JBU2784 | BZE → JFK | May 20, 17:50 UTC | May 20, 20:00 UTC | 2h 10m |
| 2026-05-20 | JBU2784 | BZE → JFK | May 20, 17:49 UTC | May 21, 11:35 UTC | 17h 47m |
| 2026-05-20 | JBU883 | JFK → MCO | May 20, 13:50 UTC | May 20, 15:55 UTC | 2h 5m |
| 2026-05-20 | JBU2769 | BOS → FLL | May 20, 10:05 UTC | May 20, 11:15 UTC | 1h 10m |
| 2026-05-20 | JBU2768 | TPA → BQN | May 20, 02:40 UTC | May 20, 03:50 UTC | 1h 10m |
| 2026-05-15 | JBU854 | PBI → JFK | May 15, 14:25 UTC | May 15, 16:50 UTC | 2h 24m |
| 2026-05-15 | JBU854 | PBI → JFK | May 15, 14:22 UTC | May 16, 01:00 UTC | 10h 38m |
| 2026-05-15 | JBU1153 | JFK → PBI | May 15, 10:40 UTC | May 15, 13:00 UTC | 2h 20m |
| 2026-05-15 | JBU1902 | FLL → JFK | May 15, 01:20 UTC | May 15, 03:35 UTC | 2h 15m |
| 2026-05-14 | JBU783 | BOS → RDU | May 14, 02:06 UTC | May 15, 02:00 UTC | 23h 55m |
| 2026-05-13 | JBU1484 | RDU → BOS | May 13, 23:26 UTC | May 14, 21:35 UTC | 22h 10m |
| 2026-05-13 | JBU418 | JFK → BOS | May 13, 17:55 UTC | May 13, 18:40 UTC | 45m |
| 2026-05-13 | JBU418 | JFK → BOS | May 13, 17:50 UTC | May 14, 15:45 UTC | 21h 56m |
| 2026-05-13 | JBU1306 | IAD → JFK | May 13, 14:00 UTC | May 13, 15:45 UTC | 1h 45m |
| 2026-05-12 | JBU1310 | JAX → BOS | May 12, 13:45 UTC | May 12, 14:00 UTC | 15m |
| 2026-05-12 | JBU109 | BOS → JAX | May 12, 10:01 UTC | May 13, 01:50 UTC | 15h 50m |
| 2026-05-12 | JBU109 | BOS → JAX | May 12, 10:05 UTC | May 12, 12:35 UTC | 2h 30m |
| 2026-05-11 | JBU1499 | BOS → DAB | May 11, 18:50 UTC | May 11, 21:45 UTC | 2h 55m |
| 2026-05-11 | JBU954 | MCO → BOS | May 11, 16:30 UTC | May 11, 17:25 UTC | 56m |
| 2026-05-10 | JBU2722 | MSY → FLL | May 10, 20:47 UTC | May 11, 20:00 UTC | 23h 14m |
| 2026-05-10 | JBU1676 | KIN → FLL | May 10, 14:04 UTC | May 11, 14:00 UTC | 23h 56m |
| 2026-05-10 | JBU513 | ISP → FLL | May 10, 01:09 UTC | May 10, 04:00 UTC | 2h 50m |
| 2026-05-10 | JBU513 | ISP → FLL | May 10, 01:09 UTC | May 10, 22:25 UTC | 21h 16m |
| 2026-05-09 | JBU514 | SDQ → EWR | May 9, 22:00 UTC | May 10, 00:20 UTC | 2h 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 N3241J page for operator, model, and routing details .