Apparatus

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sensors Mode-S transponder

A66239

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N510JB · AIRBUS A-320 · operated by JETBLUE AIRWAYS CORP

Hex
A66239
Octal
51461071
Decimal
10,904,121
Country
US
Tail
N510JB
Type
A320
No current signal · last broadcast 4h ago
Flights observed
150
Distinct callsigns
20
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S A66239.

Country allocation

The ICAO 24-bit address A66239 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
JBU675 JetBlue Airways 3 2026-05-30
JBU2601 JetBlue Airways 3 2026-05-02
JBU1889 JetBlue Airways 3 2026-05-29
JBU158 JetBlue Airways 3 2026-04-15
JBU143 JetBlue Airways 3 2026-05-01
JBU869 JetBlue Airways 2 2026-04-26
JBU791 JetBlue Airways 2 2026-05-18
JBU722 JetBlue Airways 2 2026-05-05
JBU683 JetBlue Airways 2 2026-05-27
JBU564 JetBlue Airways 2 2026-04-18
JBU548 JetBlue Airways 2 2026-05-08
JBU543 JetBlue Airways 2 2026-04-17
JBU542 JetBlue Airways 2 2026-05-22
JBU503 JetBlue Airways 2 2026-04-15
JBU444 JetBlue Airways 2 2026-04-18
JBU390 JetBlue Airways 2 2026-04-16
JBU326 JetBlue Airways 2 2026-05-16
JBU310 JetBlue Airways 2 2026-04-28
JBU2941 JetBlue Airways 2 2026-04-16
JBU2632 JetBlue Airways 2 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 JBU675 JFK → MSY May 30, 03:21 UTCMay 30, 03:55 UTC35m
2026-05-30 JBU675 JFK → MSY May 30, 03:25 UTCMay 30, 03:55 UTC30m
2026-05-29 JBU304 SJU → JFK May 29, 21:50 UTCMay 30, 01:40 UTC3h 50m
2026-05-29 JBU2632 PUJ → SJU May 29, 20:00 UTCMay 29, 20:20 UTC20m
2026-05-29 JBU2631 SJU → PUJ May 29, 18:05 UTCMay 29, 18:15 UTC10m
2026-05-29 JBU1889 EWR → SJU May 29, 16:25 UTCMay 29, 16:40 UTC15m
2026-05-29 JBU1889 EWR → SJU May 29, 13:25 UTCMay 29, 13:55 UTC30m
2026-05-29 JBU1990 SJU → EWR May 29, 00:40 UTCMay 29, 02:20 UTC1h 40m
2026-05-28 JBU1990 SJU → EWR May 28, 22:35 UTCMay 28, 22:55 UTC20m
2026-05-28 JBU2132 PUJ → SJU May 28, 20:50 UTCMay 28, 21:00 UTC10m
2026-05-28 JBU2031 BOS → LGA May 28, 18:40 UTCMay 28, 18:50 UTC10m
2026-05-28 JBU1889 EWR → SJU May 28, 13:05 UTCMay 28, 16:25 UTC3h 20m
2026-05-27 JBU683 EWR → SFO May 27, 14:56 UTCMay 28, 13:35 UTC22h 39m
2026-05-27 JBU683 EWR → SFO May 27, 15:00 UTCMay 27, 17:10 UTC2h 10m
2026-05-27 JBU320 SAN → BOS May 27, 10:30 UTCMay 27, 12:10 UTC1h 40m
2026-05-27 JBU719 BOS → SAN May 27, 01:14 UTCMay 27, 03:09 UTC1h 55m
2026-05-26 JBU1568 PUJ → JFK May 26, 14:14 UTCMay 26, 22:44 UTC8h 30m
2026-05-26 JBU676 BDL → JFK May 26, 11:20 UTCMay 26, 12:05 UTC45m
2026-05-26 JBU438 MCO → BDL May 26, 00:09 UTCMay 26, 02:35 UTC2h 25m
2026-05-25 JBU595 HPN → MCO May 25, 20:04 UTCMay 25, 22:19 UTC2h 15m
2026-05-25 JBU194 STI → EWR May 25, 16:25 UTCMay 25, 18:45 UTC2h 20m
2026-05-25 JBU183 BOS → RDU May 25, 12:35 UTCMay 25, 14:45 UTC2h 10m
2026-05-24 JBU1691 JFK → LIR May 24, 14:05 UTCMay 24, 23:46 UTC9h 41m
2026-05-24 JBU884 MCO → JFK May 24, 03:00 UTCMay 24, 05:10 UTC2h 10m
2026-05-23 JBU1014 CUN → MCO May 23, 23:20 UTCMay 24, 01:00 UTC1h 40m
2026-05-23 JBU1013 MCO → CUN May 23, 20:15 UTCMay 23, 21:45 UTC1h 30m
2026-05-23 JBU351 BOS → MCO May 23, 12:15 UTCMay 23, 14:45 UTC2h 30m
2026-05-22 JBU959 BDL → FLL May 22, 11:21 UTCMay 23, 10:15 UTC22h 54m
2026-05-22 JBU542 PBI → BDL May 22, 00:50 UTCMay 22, 03:20 UTC2h 30m
2026-05-22 JBU542 PBI → BDL May 22, 00:48 UTCMay 23, 00:15 UTC23h 28m
2026-05-21 JBU1761 FLL → SJU May 21, 21:25 UTCMay 21, 23:40 UTC2h 15m
2026-05-21 JBU1172 SLC → JFK May 21, 01:15 UTCMay 21, 02:15 UTC1h 0m
2026-05-21 JBU1172 SLC → JFK May 21, 01:15 UTCMay 21, 23:40 UTC22h 26m
2026-05-20 JBU69 BOS → FLL May 20, 14:40 UTCMay 20, 17:25 UTC2h 45m
2026-05-19 JBU516 RSW → BOS May 19, 18:55 UTCMay 20, 17:25 UTC22h 31m
2026-05-19 JBU192 TPA → BOS May 19, 13:05 UTCMay 19, 15:45 UTC2h 40m
2026-05-19 JBU192 TPA → BOS May 19, 13:03 UTCMay 20, 02:45 UTC13h 42m
2026-05-18 JBU791 BOS → TPA May 18, 14:20 UTCMay 19, 14:15 UTC23h 55m
2026-05-17 JBU2090 SAP → FLL May 17, 19:14 UTCMay 18, 18:10 UTC22h 57m
2026-05-17 JBU1071 BOS → JFK May 17, 10:38 UTCMay 18, 10:15 UTC23h 38m
2026-05-16 JBU326 BWI → BOS May 16, 19:45 UTCMay 17, 17:15 UTC21h 31m
2026-05-16 JBU326 BWI → BOS May 16, 19:45 UTCMay 17, 17:15 UTC21h 31m
2026-05-16 JBU2427 FLL → MBJ May 16, 17:05 UTCMay 16, 17:30 UTC25m
2026-05-16 JBU1265 BOS → RSW May 16, 09:45 UTCMay 16, 14:55 UTC5h 10m
2026-05-14 JBU1778 LAS → BOS May 14, 17:05 UTCMay 14, 23:40 UTC6h 35m
2026-05-14 JBU1443 MHT → MCO May 14, 10:45 UTCMay 14, 13:40 UTC2h 55m
2026-05-13 JBU1144 MCO → EWR May 13, 16:05 UTCMay 13, 18:35 UTC2h 30m
2026-05-12 JBU128 MCO → EWR May 12, 19:30 UTCMay 13, 18:15 UTC22h 46m
2026-05-12 JBU767 MCO → PSE May 12, 09:04 UTCMay 13, 00:35 UTC15h 32m
2026-05-11 JBU969 RIC → MCO May 11, 21:35 UTCMay 12, 20:15 UTC22h 41m

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 N510JB page for operator, model, and routing details .

Mode-S A66239 frequently asked

What is Mode-S code A66239?
A66239 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N510JB.
Where is Mode-S A66239 registered?
Mode-S code A66239 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 A66239 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A66239, octal 51461071, decimal 10,904,121.
What flights does A66239 operate?
Mode-S A66239 has broadcast 20 distinct callsigns, including JBU675, JBU2601, JBU1889, JBU158, JBU143.