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
No current signal · last broadcast 3h ago
Flights observed
161
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A3401A.

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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 JBU1530 RSW → JFK May 29, 17:05 UTCMay 29, 19:35 UTC2h 30m
2026-05-29 JBU1530 RSW → JFK May 29, 17:01 UTCMay 30, 02:20 UTC9h 20m
2026-05-29 JBU1529 JFK → RSW May 29, 13:20 UTCMay 29, 15:50 UTC2h 30m
2026-05-29 JBU1117 BOS → JFK May 29, 01:25 UTCMay 29, 02:10 UTC45m
2026-05-28 JBU862 PBI → LGA May 28, 21:15 UTCMay 28, 23:20 UTC2h 5m
2026-05-28 JBU862 PBI → LGA May 28, 19:35 UTCMay 28, 19:50 UTC15m
2026-05-28 JBU2601 BUF → JFK May 28, 15:50 UTCMay 28, 16:10 UTC20m
2026-05-28 JBU2601 BUF → JFK May 28, 12:55 UTCMay 28, 13:25 UTC30m
2026-05-28 JBU8402 SJO → MCO May 28, 11:30 UTCMay 28, 11:40 UTC10m
2026-05-27 JBU1186 JFK → ROC May 27, 11:00 UTCMay 27, 11:55 UTC55m
2026-05-27 JBU1186 JFK → ROC May 27, 02:29 UTCMay 27, 03:20 UTC50m
2026-05-26 JBU1274 CHS → JFK May 26, 23:45 UTCMay 27, 01:14 UTC1h 30m
2026-05-26 JBU2473 JFK → CHS May 26, 20:20 UTCMay 26, 21:55 UTC1h 35m
2026-05-26 JBU164 SRQ → JFK May 26, 16:24 UTCMay 26, 18:50 UTC2h 25m
2026-05-26 JBU163 JFK → SRQ May 26, 12:30 UTCMay 26, 15:09 UTC2h 40m
2026-05-26 JBU98 DEN → JFK May 26, 06:20 UTCMay 26, 09:25 UTC3h 5m
2026-05-26 JBU97 JFK → DEN May 26, 01:05 UTCMay 26, 05:00 UTC3h 55m
2026-05-25 JBU302 FLL → JFK May 25, 10:03 UTCMay 26, 08:30 UTC22h 27m
2026-05-24 JBU484 RDU → BOS May 24, 14:00 UTCMay 24, 15:20 UTC1h 20m
2026-05-24 JBU484 RDU → BOS May 24, 13:56 UTCMay 25, 12:30 UTC22h 35m
2026-05-24 JBU1883 BOS → RDU May 24, 11:10 UTCMay 24, 12:50 UTC1h 40m
2026-05-23 JBU1194 MBJ → BOS May 23, 14:40 UTCMay 23, 23:30 UTC8h 51m
2026-05-23 JBU374 BNA → JFK May 23, 11:05 UTCMay 23, 11:50 UTC45m
2026-05-23 JBU845 BOS → SYR May 23, 01:55 UTCMay 23, 02:45 UTC49m
2026-05-22 JBU250 LGB → OAK May 22, 22:10 UTCMay 23, 00:10 UTC2h 0m
2026-05-22 JBU349 BOS → SAV May 22, 18:25 UTCMay 22, 20:45 UTC2h 20m
2026-05-21 JBU1018 JFK → BOS May 21, 14:45 UTCMay 21, 15:20 UTC35m
2026-05-21 JBU1018 JFK → BOS May 21, 14:41 UTCMay 22, 03:40 UTC13h 0m
2026-05-20 JBU156 PLS → JFK May 20, 20:50 UTCMay 20, 21:30 UTC40m
2026-05-20 JBU255 JFK → PLS May 20, 13:55 UTCMay 20, 14:30 UTC35m
2026-05-19 JBU226 TPA → JFK May 19, 21:55 UTCMay 20, 00:20 UTC2h 25m
2026-05-19 JBU1366 CUN → TPA May 19, 18:05 UTCMay 19, 19:30 UTC1h 25m
2026-05-19 JBU1365 TPA → CUN May 19, 15:00 UTCMay 19, 16:25 UTC1h 25m
2026-05-19 JBU2725 JFK → TPA May 19, 10:45 UTCMay 19, 13:05 UTC2h 20m
2026-05-18 JBU1037 BOS → DTW May 18, 18:32 UTCMay 19, 16:30 UTC21h 58m
2026-05-18 JBU1813 BOS → ORF May 18, 13:25 UTCMay 18, 14:30 UTC1h 5m
2026-05-18 JBU1813 BOS → ORF May 18, 13:23 UTCMay 19, 12:30 UTC23h 7m
2026-05-18 JBU716 BUF → BOS May 18, 11:05 UTCMay 18, 12:05 UTC1h 0m
2026-05-17 JBU2466 FLL → BUF May 17, 22:25 UTCMay 18, 01:00 UTC2h 35m
2026-05-17 JBU1496 CUN → FLL May 17, 19:25 UTCMay 17, 20:50 UTC1h 25m
2026-05-17 JBU1495 FLL → CUN May 17, 16:10 UTCMay 17, 17:50 UTC1h 40m
2026-05-17 JBU379 DCA → FLL May 17, 11:35 UTCMay 17, 13:40 UTC2h 5m
2026-05-17 JBU2587 JFK → DCA May 17, 01:55 UTCMay 17, 02:35 UTC40m
2026-05-16 JBU226 TPA → JFK May 16, 21:55 UTCMay 17, 00:30 UTC2h 35m
2026-05-16 JBU1366 CUN → TPA May 16, 18:55 UTCMay 16, 20:15 UTC1h 20m
2026-05-16 JBU1365 TPA → CUN May 16, 15:01 UTCMay 16, 16:35 UTC1h 35m
2026-05-16 JBU2725 JFK → TPA May 16, 10:40 UTCMay 16, 12:55 UTC2h 15m
2026-05-15 JBU2768 TPA → BQN May 15, 02:14 UTCMay 15, 13:30 UTC11h 17m
2026-05-14 JBU417 JFK → MSP May 14, 15:45 UTCMay 14, 16:30 UTC45m
2026-05-14 JBU417 JFK → MSP May 14, 15:45 UTCMay 15, 13:30 UTC21h 46m

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?
No active broadcast right now. Last signal was 3h ago.
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 JBU209, JBU1496, JBU1495, JBU1007, JBU1006.