Apparatus

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sensors Mode-S transponder

A3401A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N3085J · AIRBUS A220-300 · operated by JETBLUE AIRWAYS CORP

Hex
A3401A
Octal
50640032
Decimal
10,698,778
Country
US
Tail
N3085J
Type
BCS3
Broadcasting now · callsign JBU806 · 27,000 ft
Flights observed
276
Distinct callsigns
20
Country
US
Last broadcast
28m ago

Current position

A3401A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A3401A 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
JBU560 - 8 2026-07-14
JBU97 JetBlue Airways 5 2026-06-11
JBU2601 - 5 2026-06-26
JBU209 JetBlue Airways 5 2026-05-09
JBU1496 JetBlue Airways 4 2026-05-17
JBU1495 JetBlue Airways 4 2026-05-17
JBU1173 JetBlue Airways 4 2026-05-30
JBU1007 JetBlue Airways 4 2026-04-17
JBU1006 JetBlue Airways 4 2026-04-17
JBU502 JetBlue Airways 3 2026-05-10
JBU2725 - 3 2026-06-29
JBU2494 - 3 2026-06-22
JBU2459 - 3 2026-07-13
JBU226 - 3 2026-06-28
JBU2255 - 3 2026-06-21
JBU1955 JetBlue Airways 3 2026-04-28
JBU125 - 3 2026-06-29
JBU1117 JetBlue Airways 3 2026-06-09
JBU98 JetBlue Airways 2 2026-06-01
JBU933 JetBlue Airways 2 2026-06-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JBU560 PSQ → BOS Jul 14, 01:00 UTCJul 14, 01:55 UTC55m
2026-07-14 JBU560 PHL → BOS Jul 14, 00:59 UTCJul 14, 14:30 UTC13h 32m
2026-07-14 JBU560 PHL → PHL Jul 14, 00:30 UTCJul 14, 00:35 UTC5m
2026-07-14 JBU560 PHL → PHL Jul 14, 00:10 UTCJul 14, 00:25 UTC15m
2026-07-13 JBU560 PHL → PHL Jul 13, 23:50 UTCJul 14, 00:00 UTC10m
2026-07-13 JBU2459 BOS → PHL Jul 13, 22:40 UTCJul 13, 23:45 UTC1h 5m
2026-07-06 JBU165 BOS → RSW Jul 6, 10:49 UTCJul 7, 08:05 UTC21h 17m
2026-07-02 JBU419 JFK → ATL Jul 2, 20:18 UTCJul 3, 13:20 UTC17h 2m
2026-07-02 JBU1868 DAB → JFK Jul 2, 14:15 UTCJul 3, 11:35 UTC21h 20m
2026-07-02 JBU359 BUR → JFK Jul 2, 04:31 UTCJul 3, 00:30 UTC19h 59m
2026-07-01 JBU80 RNO → JFK Jul 1, 14:45 UTCJul 2, 14:30 UTC23h 45m
2026-06-30 JBU81 JFK → RNO Jun 30, 22:52 UTCJul 1, 22:30 UTC23h 39m
2026-06-30 JBU2901 JFK → FLL Jun 30, 20:10 UTCJul 1, 18:30 UTC22h 21m
2026-06-30 JBU626 TPA → JFK Jun 30, 13:24 UTCJul 1, 04:05 UTC14h 42m
2026-06-29 JBU125 - Jun 29, 17:05 UTCJun 29, 18:30 UTC1h 25m
2026-06-29 JBU125 JFK → TPA Jun 29, 17:04 UTCJun 30, 14:30 UTC21h 27m
2026-06-29 JBU626 TPA → JFK Jun 29, 13:19 UTCJun 29, 15:39 UTC2h 20m
2026-06-29 JBU2725 - Jun 29, 02:20 UTCJun 29, 04:45 UTC2h 25m
2026-06-28 JBU226 TPA → JFK Jun 28, 20:29 UTCJun 28, 22:45 UTC2h 15m
2026-06-28 JBU125 JFK → TPA Jun 28, 16:55 UTCJun 28, 19:09 UTC2h 15m
2026-06-27 JBU1837 JFK → STI Jun 27, 23:45 UTCJun 28, 22:29 UTC22h 45m
2026-06-27 JBU2901 JFK → FLL Jun 27, 20:20 UTCJun 28, 18:29 UTC22h 10m
2026-06-27 JBU591 BOS → TPA Jun 27, 02:22 UTCJun 28, 00:20 UTC21h 58m
2026-06-26 JBU592 TPA → BOS Jun 26, 21:57 UTCJun 27, 20:29 UTC22h 33m
2026-06-26 JBU2152 - Jun 26, 18:09 UTCJun 26, 18:24 UTC15m
2026-06-26 JBU2152 SJU → TPA Jun 26, 18:08 UTCJun 27, 15:30 UTC21h 22m
2026-06-26 JBU2601 - Jun 26, 16:35 UTCJun 26, 16:54 UTC20m
2026-06-26 JBU2601 - Jun 26, 12:50 UTCJun 26, 14:55 UTC2h 5m
2026-06-26 JBU2601 HPN → SJU Jun 26, 12:45 UTCJun 27, 05:35 UTC16h 50m
2026-06-25 JBU2602 - Jun 25, 23:44 UTCJun 26, 00:35 UTC50m
2026-06-25 JBU2602 - Jun 25, 21:05 UTCJun 25, 21:15 UTC10m
2026-06-25 JBU1047 - Jun 25, 19:24 UTCJun 25, 19:49 UTC25m
2026-06-25 JBU1047 - Jun 25, 16:24 UTCJun 25, 16:59 UTC35m
2026-06-24 JBU533 BDL → TPA Jun 24, 21:19 UTCJun 25, 19:49 UTC22h 31m
2026-06-24 JBU845 BOS → SYR Jun 24, 02:47 UTCJun 25, 02:05 UTC23h 18m
2026-06-23 JBU592 TPA → BOS Jun 23, 22:55 UTCJun 24, 01:24 UTC2h 30m
2026-06-23 JBU2122 - Jun 23, 01:40 UTCJun 23, 02:29 UTC50m
2026-06-23 JBU2122 ACK → HPN Jun 23, 01:36 UTCJun 24, 00:30 UTC22h 54m
2026-06-22 JBU2494 - Jun 22, 22:54 UTCJun 23, 00:30 UTC1h 35m
2026-06-22 JBU2494 DCA → ACK Jun 22, 22:50 UTCJun 23, 20:34 UTC21h 45m
2026-06-22 JBU855 BOS → DCA Jun 22, 18:35 UTCJun 22, 19:49 UTC1h 15m
2026-06-22 JBU806 - Jun 22, 14:05 UTCJun 22, 16:10 UTC2h 5m
2026-06-22 JBU1207 BOS → BNA Jun 22, 10:05 UTCJun 22, 12:30 UTC2h 25m
2026-06-22 JBU2186 - Jun 22, 01:00 UTCJun 22, 02:10 UTC1h 10m
2026-06-21 JBU2185 BOS → PIT Jun 21, 22:24 UTCJun 21, 23:50 UTC1h 25m
2026-06-21 JBU2184 RDU → BOS Jun 21, 19:20 UTCJun 21, 20:59 UTC1h 40m
2026-06-21 JBU2283 - Jun 21, 16:19 UTCJun 21, 17:50 UTC1h 30m
2026-06-21 JBU554 DCA → BOS Jun 21, 13:24 UTCJun 21, 14:24 UTC1h 0m
2026-06-21 JBU2255 BOS → DCA Jun 21, 10:29 UTCJun 21, 11:40 UTC1h 10m
2026-06-20 JBU1632 - Jun 20, 23:14 UTCJun 21, 02:24 UTC3h 10m

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 N3085J page for operator, model, and routing details .

Mode-S A3401A frequently asked

What is Mode-S code A3401A?
A3401A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N3085J.
Where is Mode-S A3401A registered?
Mode-S code A3401A 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 A3401A broadcasting right now?
Yes. Mode-S A3401A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3401A, octal 50640032, decimal 10,698,778.
What flights does A3401A operate?
Mode-S A3401A has broadcast 20 distinct callsigns, including JBU560, JBU97, JBU2601, JBU209, JBU1496.