Apparatus

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sensors Mode-S transponder

A383F3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N3255J · operated by JETBLUE AIRWAYS CORP

Hex
A383F3
Octal
50701763
Decimal
10,716,147
Country
US
Tail
N3255J
Type
BCS3
No current signal · last broadcast 1h ago
Flights observed
312
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A383F3.

Country allocation

The ICAO 24-bit address A383F3 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
JBU899 JetBlue Airways 4 2026-06-07
JBU845 - 4 2026-06-21
JBU386 - 4 2026-07-07
JBU2493 - 4 2026-07-05
JBU2271 JetBlue Airways 4 2026-06-07
JBU2055 JetBlue Airways 4 2026-04-16
JBU1971 JetBlue Airways 4 2026-05-31
JBU1697 JetBlue Airways 4 2026-05-04
JBU1003 JetBlue Airways 4 2026-06-16
JBU803 - 3 2026-07-10
JBU791 JetBlue Airways 3 2026-06-25
JBU751 - 3 2026-06-26
JBU522 - 3 2026-07-12
JBU501 JetBlue Airways 3 2026-05-30
JBU471 JetBlue Airways 3 2026-06-06
JBU2854 JetBlue Airways 3 2026-05-13
JBU249 JetBlue Airways 3 2026-04-20
JBU2324 JetBlue Airways 3 2026-06-13
JBU2285 - 3 2026-07-02
JBU2272 JetBlue Airways 3 2026-06-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JBU1086 MCO → BUF Jul 14, 10:32 UTCJul 14, 18:45 UTC8h 14m
2026-07-13 JBU1539 MVY → JFK Jul 13, 21:32 UTCJul 14, 18:45 UTC21h 14m
2026-07-13 JBU338 - Jul 13, 00:55 UTCJul 13, 03:25 UTC2h 30m
2026-07-13 JBU338 MCO → BDL Jul 13, 00:54 UTCJul 13, 22:20 UTC21h 27m
2026-07-12 JBU522 MCO → MCO Jul 12, 17:40 UTCJul 12, 22:40 UTC5h 0m
2026-07-12 JBU1406 - Jul 12, 09:20 UTCJul 12, 15:15 UTC5h 55m
2026-07-12 JBU1083 JFK → MCO Jul 12, 02:40 UTCJul 12, 04:45 UTC2h 5m
2026-07-11 JBU2901 - Jul 11, 20:10 UTCJul 11, 21:05 UTC55m
2026-07-11 JBU2902 JFK → BUF Jul 11, 18:05 UTCJul 11, 19:05 UTC1h 0m
2026-07-10 JBU210 JFK → JFK Jul 10, 18:55 UTCJul 11, 03:05 UTC8h 10m
2026-07-10 JBU1154 - Jul 10, 14:55 UTCJul 10, 17:05 UTC2h 10m
2026-07-10 JBU803 - Jul 10, 01:20 UTCJul 10, 01:40 UTC20m
2026-07-09 JBU803 - Jul 9, 21:45 UTCJul 9, 23:10 UTC1h 25m
2026-07-09 JBU803 JFK → SJU Jul 9, 21:45 UTCJul 10, 19:40 UTC21h 55m
2026-07-09 JBU704 SJU → JFK Jul 9, 16:01 UTCJul 10, 12:55 UTC20h 55m
2026-07-09 JBU80 - Jul 9, 15:10 UTCJul 9, 19:45 UTC4h 35m
2026-07-08 JBU81 - Jul 8, 23:10 UTCJul 9, 04:35 UTC5h 25m
2026-07-08 JBU206 BOS → PQI Jul 8, 03:29 UTCJul 9, 02:45 UTC23h 17m
2026-07-07 JBU386 - Jul 7, 17:10 UTCJul 7, 18:30 UTC1h 20m
2026-07-07 JBU386 PIT → BOS Jul 7, 17:05 UTCJul 8, 16:00 UTC22h 56m
2026-07-07 JBU385 - Jul 7, 14:30 UTCJul 7, 15:50 UTC1h 20m
2026-07-06 JBU932 IAH → BOS Jul 6, 23:00 UTCJul 7, 02:10 UTC3h 10m
2026-07-06 JBU1854 DCA → BOS Jul 6, 04:25 UTCJul 6, 05:45 UTC1h 20m
2026-07-06 JBU1854 DCA → BOS Jul 6, 04:25 UTCJul 7, 02:45 UTC22h 20m
2026-07-05 JBU1355 BOS → DCA Jul 5, 20:40 UTCJul 5, 21:50 UTC1h 10m
2026-07-05 JBU1254 DCA → BOS Jul 5, 18:15 UTCJul 5, 19:15 UTC1h 0m
2026-07-05 JBU2493 - Jul 5, 15:40 UTCJul 5, 17:00 UTC1h 20m
2026-07-05 JBU2121 - Jul 5, 13:05 UTCJul 5, 13:35 UTC30m
2026-07-04 JBU2122 - Jul 4, 21:50 UTCJul 4, 22:30 UTC40m
2026-07-04 JBU2432 - Jul 4, 19:10 UTCJul 4, 19:50 UTC40m
2026-07-04 JBU831 - Jul 4, 15:55 UTCJul 4, 16:50 UTC55m
2026-07-03 JBU2122 ACK → HPN Jul 3, 22:15 UTCJul 4, 19:50 UTC21h 35m
2026-07-03 JBU2494 DCA → ACK Jul 3, 20:00 UTCJul 4, 16:55 UTC20h 55m
2026-07-03 JBU855 BOS → DCA Jul 3, 17:26 UTCJul 4, 16:45 UTC23h 19m
2026-07-03 JBU806 BNA → BOS Jul 3, 13:45 UTCJul 3, 22:55 UTC9h 10m
2026-07-02 JBU22 - Jul 2, 21:55 UTCJul 3, 00:30 UTC2h 35m
2026-07-02 JBU22 PBI → BOS Jul 2, 21:53 UTCJul 3, 20:45 UTC22h 52m
2026-07-02 JBU53 - Jul 2, 18:15 UTCJul 2, 20:35 UTC2h 20m
2026-07-02 JBU2786 - Jul 2, 15:10 UTCJul 2, 16:25 UTC1h 15m
2026-07-02 JBU2285 JFK → RDU Jul 2, 12:55 UTCJul 2, 14:00 UTC1h 5m
2026-07-02 JBU1198 - Jul 2, 09:40 UTCJul 2, 10:45 UTC1h 5m
2026-07-02 JBU1785 - Jul 2, 03:15 UTCJul 2, 04:30 UTC1h 15m
2026-07-02 JBU1814 ORF → BOS Jul 2, 00:25 UTCJul 2, 01:45 UTC1h 20m
2026-07-01 JBU1813 BOS → ORF Jul 1, 19:45 UTCJul 1, 20:55 UTC1h 10m
2026-07-01 JBU266 RSW → BOS Jul 1, 15:20 UTCJul 1, 18:05 UTC2h 45m
2026-06-30 JBU391 BOS → TPA Jun 30, 20:40 UTCJul 1, 18:15 UTC21h 36m
2026-06-30 JBU896 ATL → BOS Jun 30, 16:10 UTCJul 1, 13:55 UTC21h 46m
2026-06-29 JBU811 BOS → ORD Jun 29, 21:59 UTCJun 30, 20:40 UTC22h 42m
2026-06-29 JBU837 BOS → DTW Jun 29, 16:15 UTCJun 29, 17:45 UTC1h 30m
2026-06-29 JBU837 BOS → DTW Jun 29, 16:10 UTCJun 30, 14:45 UTC22h 36m

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 N3255J page for operator, model, and routing details .

Mode-S A383F3 frequently asked

What is Mode-S code A383F3?
A383F3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N3255J.
Where is Mode-S A383F3 registered?
Mode-S code A383F3 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A383F3 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A383F3, octal 50701763, decimal 10,716,147.
What flights does A383F3 operate?
Mode-S A383F3 has broadcast 20 distinct callsigns, including JBU899, JBU845, JBU386, JBU2493, JBU2271.