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 Jul 26, 22:45 UTC
Flights observed
343
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

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
JBU401 - 6 2026-07-21
JBU1854 JetBlue Airways 5 2026-07-23
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
JBU810 - 3 2026-07-16
JBU803 - 3 2026-07-10
JBU791 JetBlue Airways 3 2026-06-25
JBU751 - 3 2026-06-26
JBU741 - 3 2026-07-17
JBU53 JetBlue Airways 3 2026-07-24
JBU522 - 3 2026-07-12
JBU501 JetBlue Airways 3 2026-05-30
JBU471 JetBlue Airways 3 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JBU1285 ROC → JFK Jul 26, 10:21 UTCJul 26, 22:45 UTC12h 25m
2026-07-25 JBU1955 BOS → DCA Jul 25, 21:57 UTCJul 26, 20:00 UTC22h 4m
2026-07-25 JBU831 BOS → LGA Jul 25, 15:55 UTCJul 26, 14:30 UTC22h 36m
2026-07-25 JBU2352 MCO → BOS Jul 25, 13:53 UTCJul 26, 11:45 UTC21h 53m
2026-07-24 JBU53 JFK → PBI Jul 24, 17:57 UTCJul 25, 16:45 UTC22h 48m
2026-07-24 JBU136 PHX → JFK Jul 24, 06:47 UTCJul 25, 03:45 UTC20h 58m
2026-07-23 JBU1963 HYA → JFK Jul 23, 21:25 UTCJul 24, 20:35 UTC23h 10m
2026-07-23 JBU1964 JFK → HYA Jul 23, 19:44 UTCJul 24, 18:45 UTC23h 1m
2026-07-23 JBU1854 DCA → BOS Jul 23, 01:30 UTCJul 24, 00:45 UTC23h 15m
2026-07-23 JBU1854 DCA → BOS Jul 23, 01:35 UTCJul 23, 02:35 UTC1h 0m
2026-07-22 JBU1955 BOS → DCA Jul 22, 22:05 UTCJul 22, 23:25 UTC1h 20m
2026-07-22 JBU494 MCO → EWR Jul 22, 16:20 UTCJul 22, 19:35 UTC3h 15m
2026-07-21 JBU401 - Jul 21, 17:00 UTCJul 21, 20:55 UTC3h 55m
2026-07-21 JBU401 BOS → MSY Jul 21, 16:59 UTCJul 22, 16:45 UTC23h 46m
2026-07-21 JBU554 DCA → BOS Jul 21, 13:40 UTCJul 21, 14:45 UTC1h 5m
2026-07-21 JBU2255 BOS → DCA Jul 21, 10:10 UTCJul 21, 11:25 UTC1h 15m
2026-07-21 JBU8396 ATL → BOS Jul 21, 02:55 UTCJul 21, 05:05 UTC2h 10m
2026-07-19 JBU400 MSY → BOS Jul 19, 20:35 UTCJul 19, 20:45 UTC10m
2026-07-19 JBU401 BOS → MSY Jul 19, 15:50 UTCJul 19, 19:15 UTC3h 25m
2026-07-19 JBU401 BOS → MSY Jul 19, 15:49 UTCJul 20, 13:40 UTC21h 52m
2026-07-19 JBU1282 RIC → BOS Jul 19, 13:15 UTCJul 19, 14:30 UTC1h 15m
2026-07-17 JBU1595 - Jul 17, 17:40 UTCJul 17, 18:29 UTC50m
2026-07-17 JBU1595 BOS → PUJ Jul 17, 17:36 UTCJul 18, 12:25 UTC18h 50m
2026-07-17 JBU150 SAV → BOS Jul 17, 13:40 UTCJul 17, 15:44 UTC2h 5m
2026-07-17 JBU741 JFK → SAV Jul 17, 10:44 UTCJul 17, 12:30 UTC1h 45m
2026-07-17 JBU520 - Jul 17, 02:34 UTCJul 17, 04:35 UTC2h 0m
2026-07-17 JBU897 - Jul 17, 00:14 UTCJul 17, 00:55 UTC40m
2026-07-16 JBU897 - Jul 16, 19:30 UTCJul 16, 22:15 UTC2h 45m
2026-07-16 JBU810 JAX → BOS Jul 16, 00:38 UTCJul 16, 22:15 UTC21h 37m
2026-07-15 JBU2265 - Jul 15, 09:45 UTCJul 15, 10:35 UTC50m
2026-07-15 JBU2265 MCO → STI Jul 15, 09:41 UTCJul 16, 06:45 UTC21h 4m
2026-07-14 JBU1086 MCO → BUF Jul 14, 10:32 UTCJul 15, 03:55 UTC17h 23m
2026-07-13 JBU1539 MVY → JFK Jul 13, 21:32 UTCJul 14, 19:20 UTC21h 49m
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

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 Jul 26, 22:45 UTC.
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 JBU401, JBU1854, JBU899, JBU845, JBU386.