Apparatus

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sensors Mode-S transponder

A38019

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N3244J · operated by JETBLUE AIRWAYS CORP

Hex
A38019
Octal
50700031
Decimal
10,715,161
Country
US
Tail
N3244J
Type
BCS3
No current signal · last broadcast Jul 26, 20:20 UTC
Flights observed
346
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:20 UTC

Last known position

Most recent position reported by Mode-S A38019.

Country allocation

The ICAO 24-bit address A38019 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
JBU494 - 6 2026-07-14
JBU394 - 5 2026-07-13
JBU1955 - 5 2026-07-14
JBU560 JetBlue Airways 4 2026-07-08
JBU506 JetBlue Airways 4 2026-07-23
JBU2186 JetBlue Airways 4 2026-06-10
JBU206 - 4 2026-06-23
JBU1813 JetBlue Airways 4 2026-04-24
JBU1781 - 4 2026-07-09
JBU1007 JetBlue Airways 4 2026-05-18
JBU932 JetBlue Airways 3 2026-06-29
JBU810 JetBlue Airways 3 2026-07-24
JBU793 - 3 2026-07-13
JBU509 JetBlue Airways 3 2026-07-23
JBU493 - 3 2026-07-14
JBU450 JetBlue Airways 3 2026-05-08
JBU2783 - 3 2026-06-28
JBU249 JetBlue Airways 3 2026-06-12
JBU2468 JetBlue Airways 3 2026-05-08
JBU2355 JetBlue Airways 3 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JBU267 BOS → CHS Jul 26, 10:28 UTCJul 26, 20:20 UTC9h 53m
2026-07-26 JBU8364 DCA → BOS Jul 26, 03:45 UTCJul 26, 05:15 UTC1h 30m
2026-07-26 JBU8364 DCA → BOS Jul 26, 03:38 UTCJul 26, 20:20 UTC16h 43m
2026-07-25 JBU1263 JFK → SRQ Jul 25, 20:30 UTCJul 25, 22:20 UTC1h 50m
2026-07-25 JBU910 NAS → BOS Jul 25, 16:05 UTCJul 25, 19:00 UTC2h 55m
2026-07-25 JBU909 BOS → NAS Jul 25, 11:10 UTCJul 25, 14:05 UTC2h 55m
2026-07-24 JBU1499 BOS → DAB Jul 24, 18:06 UTCJul 25, 16:15 UTC22h 9m
2026-07-24 JBU2255 BOS → DCA Jul 24, 13:07 UTCJul 25, 12:15 UTC23h 8m
2026-07-24 JBU810 NAS → BOS Jul 24, 01:18 UTCJul 25, 00:15 UTC22h 57m
2026-07-23 JBU509 BOS → SEA Jul 23, 21:29 UTCJul 24, 20:15 UTC22h 46m
2026-07-23 JBU791 BOS → TPA Jul 23, 13:02 UTCJul 24, 06:00 UTC16h 58m
2026-07-23 JBU506 FLL → EWR Jul 23, 01:50 UTCJul 23, 03:55 UTC2h 5m
2026-07-23 JBU506 FLL → EWR Jul 23, 01:47 UTCJul 23, 23:50 UTC22h 3m
2026-07-22 JBU507 JFK → PBI Jul 22, 22:15 UTCJul 23, 00:45 UTC2h 30m
2026-07-22 JBU252 RSW → HPN Jul 22, 16:55 UTCJul 22, 19:25 UTC2h 30m
2026-07-22 JBU229 BQN → MCO Jul 22, 00:11 UTCJul 22, 22:15 UTC22h 4m
2026-07-21 JBU229 - Jul 21, 20:45 UTCJul 22, 02:45 UTC6h 0m
2026-07-21 JBU1085 BUF → MCO Jul 21, 14:05 UTCJul 21, 16:15 UTC2h 10m
2026-07-21 JBU2134 SJU → MCO Jul 21, 10:45 UTCJul 21, 13:05 UTC2h 20m
2026-07-20 JBU1083 JFK → MCO Jul 20, 04:57 UTCJul 21, 04:15 UTC23h 18m
2026-07-19 JBU2012 - Jul 19, 15:15 UTCJul 19, 17:20 UTC2h 5m
2026-07-19 JBU2012 VPS → JFK Jul 19, 15:10 UTCJul 20, 12:45 UTC21h 36m
2026-07-19 JBU2011 - Jul 19, 11:35 UTCJul 19, 13:50 UTC2h 15m
2026-07-18 JBU626 TPA → JFK Jul 18, 14:05 UTCJul 18, 16:25 UTC2h 20m
2026-07-18 JBU626 TPA → JFK Jul 18, 14:04 UTCJul 19, 12:15 UTC22h 12m
2026-07-17 JBU2601 - Jul 17, 12:00 UTCJul 17, 12:40 UTC40m
2026-07-17 JBU2601 HPN → SJU Jul 17, 11:58 UTCJul 18, 05:50 UTC17h 53m
2026-07-17 JBU2602 - Jul 17, 00:30 UTCJul 17, 01:25 UTC55m
2026-07-16 JBU751 - Jul 16, 01:35 UTCJul 16, 02:25 UTC50m
2026-07-16 JBU751 TPA → SJU Jul 16, 01:31 UTCJul 16, 22:05 UTC20h 34m
2026-07-15 JBU391 - Jul 15, 21:40 UTCJul 16, 00:20 UTC2h 40m
2026-07-15 JBU1238 - Jul 15, 16:10 UTCJul 15, 19:50 UTC3h 40m
2026-07-14 JBU1955 BOS → DCA Jul 14, 23:22 UTCJul 15, 22:15 UTC22h 53m
2026-07-14 JBU494 DEN → BOS Jul 14, 16:15 UTCJul 15, 14:15 UTC22h 0m
2026-07-14 JBU493 BOS → DEN Jul 14, 10:40 UTCJul 14, 14:15 UTC3h 35m
2026-07-14 JBU493 BOS → DEN Jul 14, 10:37 UTCJul 15, 05:45 UTC19h 8m
2026-07-13 JBU394 - Jul 13, 20:55 UTCJul 14, 00:45 UTC3h 50m
2026-07-13 JBU793 - Jul 13, 15:30 UTCJul 13, 19:15 UTC3h 45m
2026-07-12 JBU2901 BUF → JFK Jul 12, 21:56 UTCJul 13, 20:15 UTC22h 20m
2026-07-12 JBU2902 JFK → BUF Jul 12, 19:48 UTCJul 13, 18:15 UTC22h 28m
2026-07-12 JBU372 SLC → JFK Jul 12, 06:01 UTCJul 12, 10:01 UTC4h 0m
2026-07-12 JBU372 SLC → JFK Jul 12, 05:57 UTCJul 13, 04:15 UTC22h 19m
2026-07-12 JBU71 JFK → SLC Jul 12, 00:15 UTCJul 12, 04:35 UTC4h 20m
2026-07-11 JBU1054 - Jul 11, 18:25 UTCJul 11, 20:40 UTC2h 15m
2026-07-11 JBU21 - Jul 11, 13:30 UTCJul 11, 16:10 UTC2h 40m
2026-07-11 JBU96 PDX → BOS Jul 11, 07:05 UTCJul 11, 11:55 UTC4h 50m
2026-07-10 JBU95 BOS → PDX Jul 10, 23:35 UTCJul 11, 05:25 UTC5h 50m
2026-07-10 JBU591 BOS → TPA Jul 10, 02:50 UTCJul 11, 02:15 UTC23h 26m
2026-07-09 JBU1781 BOS → VPS Jul 9, 17:47 UTCJul 10, 16:15 UTC22h 28m
2026-07-09 JBU2040 CLE → BOS Jul 9, 14:11 UTCJul 10, 12:15 UTC22h 4m

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 N3244J page for operator, model, and routing details .

Mode-S A38019 frequently asked

What is Mode-S code A38019?
A38019 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N3244J.
Where is Mode-S A38019 registered?
Mode-S code A38019 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 A38019 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A38019, octal 50700031, decimal 10,715,161.
What flights does A38019 operate?
Mode-S A38019 has broadcast 20 distinct callsigns, including JBU494, JBU394, JBU1955, JBU560, JBU506.