Apparatus

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sensors Mode-S transponder

A35949

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N3149J · AIRBUS A220-300 · operated by JETBLUE AIRWAYS CORP

Hex
A35949
Octal
50654511
Decimal
10,705,225
Country
US
Tail
N3149J
Type
BCS3
No current signal · last broadcast 21d ago
Flights observed
231
Distinct callsigns
20
Country
US
Last broadcast
21d ago

Last known position

Most recent position reported by Mode-S A35949.

Country allocation

The ICAO 24-bit address A35949 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
JBU1310 JetBlue Airways 6 2026-06-12
JBU109 JetBlue Airways 6 2026-06-12
JBU1337 JetBlue Airways 4 2026-06-14
JBU1070 JetBlue Airways 4 2026-04-17
JBU654 JetBlue Airways 3 2026-04-13
JBU415 JetBlue Airways 3 2026-04-28
JBU321 JetBlue Airways 3 2026-05-13
JBU2769 JetBlue Airways 3 2026-05-04
JBU1822 JetBlue Airways 3 2026-05-16
JBU1480 - 3 2026-04-13
JBU1274 JetBlue Airways 3 2026-05-27
JBU1268 JetBlue Airways 3 2026-05-18
JBU993 JetBlue Airways 2 2026-05-21
JBU954 JetBlue Airways 2 2026-05-07
JBU8594 - 2 2026-06-22
JBU716 JetBlue Airways 2 2026-06-02
JBU66 JetBlue Airways 2 2026-05-25
JBU65 JetBlue Airways 2 2026-05-25
JBU551 JetBlue Airways 2 2026-05-22
JBU468D - 2 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-22 JBU8594 YMX → YMX Jun 22, 11:54 UTCJun 22, 12:00 UTC5m
2026-06-21 JBU8594 BOS → YMX Jun 21, 18:44 UTCJun 21, 19:39 UTC55m
2026-06-20 JBU125 JFK → TPA Jun 20, 16:27 UTCJun 21, 14:10 UTC21h 43m
2026-06-20 JBU1837 JFK → STI Jun 20, 00:09 UTCJun 20, 22:14 UTC22h 6m
2026-06-19 JBU2901 JFK → FLL Jun 19, 19:59 UTCJun 19, 20:59 UTC1h 0m
2026-06-19 JBU2901 JFK → FLL Jun 19, 19:58 UTCJun 20, 18:14 UTC22h 17m
2026-06-19 JBU2902 JFK → BUF Jun 19, 17:29 UTCJun 19, 18:30 UTC1h 0m
2026-06-19 JBU626 TPA → JFK Jun 19, 13:24 UTCJun 19, 15:39 UTC2h 15m
2026-06-19 JBU591 - Jun 19, 04:50 UTCJun 19, 07:34 UTC2h 45m
2026-06-19 JBU592 TPA → BOS Jun 19, 00:49 UTCJun 19, 03:39 UTC2h 50m
2026-06-18 JBU2152 - Jun 18, 18:35 UTCJun 18, 19:35 UTC1h 0m
2026-06-18 JBU2152 - Jun 18, 16:55 UTCJun 18, 17:10 UTC15m
2026-06-18 JBU1003 - Jun 18, 00:05 UTCJun 18, 00:30 UTC25m
2026-06-17 JBU2929 - Jun 17, 22:00 UTCJun 17, 22:35 UTC35m
2026-06-17 JBU2930 MCO → MCO Jun 17, 11:20 UTCJun 17, 17:20 UTC6h 0m
2026-06-16 JBU1033 MCO → SJU Jun 16, 16:29 UTCJun 17, 12:05 UTC19h 37m
2026-06-16 JBU183 BOS → RDU Jun 16, 12:21 UTCJun 17, 12:05 UTC23h 45m
2026-06-16 JBU1516 JFK → SYR Jun 16, 04:10 UTCJun 16, 04:50 UTC40m
2026-06-16 JBU1516 JFK → SYR Jun 16, 04:10 UTCJun 16, 23:45 UTC19h 36m
2026-06-16 JBU1174 AUA → BOS Jun 16, 00:50 UTCJun 16, 02:40 UTC1h 50m
2026-06-15 JBU1173 EWR → TPA Jun 15, 20:25 UTCJun 15, 22:35 UTC2h 10m
2026-06-15 JBU717 BOS → JFK Jun 15, 18:10 UTCJun 15, 18:55 UTC45m
2026-06-15 JBU392 TPA → BOS Jun 15, 00:49 UTCJun 15, 03:45 UTC2h 55m
2026-06-14 JBU391 - Jun 14, 20:40 UTCJun 14, 23:29 UTC2h 49m
2026-06-14 JBU1337 BOS → DTW Jun 14, 00:55 UTCJun 14, 02:30 UTC1h 35m
2026-06-14 JBU1337 BOS → DTW Jun 14, 00:53 UTCJun 14, 23:35 UTC22h 42m
2026-06-13 JBU1351 ACK → BOS Jun 13, 22:15 UTCJun 13, 22:40 UTC25m
2026-06-13 JBU2666 - Jun 13, 20:15 UTCJun 13, 20:50 UTC35m
2026-06-13 JBU2665 ACK → HPN Jun 13, 18:20 UTCJun 13, 18:55 UTC35m
2026-06-13 JBU1352 MCO → BOS Jun 13, 16:50 UTCJun 13, 17:10 UTC20m
2026-06-13 JBU1236 MSP → BOS Jun 13, 11:45 UTCJun 13, 13:05 UTC1h 20m
2026-06-13 JBU1337 BOS → DTW Jun 13, 00:50 UTCJun 13, 02:30 UTC1h 40m
2026-06-12 JBU1814 ORF → BOS Jun 12, 22:10 UTCJun 12, 23:20 UTC1h 10m
2026-06-12 JBU1813 BOS → ORF Jun 12, 19:35 UTCJun 12, 20:45 UTC1h 10m
2026-06-12 JBU1310 JAX → BOS Jun 12, 15:10 UTCJun 12, 17:20 UTC2h 10m
2026-06-12 JBU109 BOS → JAX Jun 12, 11:25 UTCJun 12, 13:40 UTC2h 15m
2026-06-12 JBU468D BOS → BOS Jun 12, 08:45 UTCJun 12, 08:50 UTC5m
2026-06-12 JBU468D - Jun 12, 01:30 UTCJun 12, 03:30 UTC2h 0m
2026-06-11 JBU2467 BOS → CHS Jun 11, 19:40 UTCJun 11, 21:30 UTC1h 50m
2026-06-11 JBU1337 BOS → DTW Jun 11, 00:44 UTCJun 11, 21:30 UTC20h 47m
2026-06-10 JBU1941 BOS → SRQ Jun 10, 15:20 UTCJun 10, 16:15 UTC55m
2026-06-10 JBU1941 BOS → SRQ Jun 10, 15:17 UTCJun 11, 13:50 UTC22h 33m
2026-06-10 JBU322 PBI → BOS Jun 10, 11:10 UTCJun 10, 13:55 UTC2h 45m
2026-06-09 JBU143 EWR → PBI Jun 9, 21:40 UTCJun 9, 23:55 UTC2h 15m
2026-06-09 JBU2144 LGW → JFK Jun 9, 15:20 UTCJun 9, 18:20 UTC3h 0m
2026-06-08 JBU143 EWR → PBI Jun 8, 21:55 UTCJun 9, 00:05 UTC2h 10m
2026-06-08 JBU2144 LGW → JFK Jun 8, 15:10 UTCJun 8, 17:45 UTC2h 35m
2026-06-08 JBU1461 LGA → PBI Jun 8, 11:25 UTCJun 8, 13:40 UTC2h 15m
2026-06-07 JBU1062 SJU → BOS Jun 7, 12:04 UTCJun 8, 02:15 UTC14h 11m
2026-06-06 JBU400 MSY → BOS Jun 6, 20:10 UTCJun 6, 22:15 UTC2h 5m

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 N3149J page for operator, model, and routing details .

Mode-S A35949 frequently asked

What is Mode-S code A35949?
A35949 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N3149J.
Where is Mode-S A35949 registered?
Mode-S code A35949 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 A35949 broadcasting right now?
No active broadcast right now. Last signal was 21d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A35949, octal 50654511, decimal 10,705,225.
What flights does A35949 operate?
Mode-S A35949 has broadcast 20 distinct callsigns, including JBU1310, JBU109, JBU1337, JBU1070, JBU654.