Apparatus

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sensors Mode-S transponder

A781D7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N583JB · AIRBUS A-320 · operated by JETBLUE AIRWAYS CORP

Hex
A781D7
Octal
51700727
Decimal
10,977,751
Country
US
Tail
N583JB
Type
A320
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
326
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S A781D7.

Country allocation

The ICAO 24-bit address A781D7 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
JBU472 JetBlue Airways 5 2026-05-14
JBU1104 JetBlue Airways 5 2026-05-06
JBU83 JetBlue Airways 4 2026-07-24
JBU814 - 4 2026-07-11
JBU54 JetBlue Airways 4 2026-07-18
JBU369 JetBlue Airways 4 2026-06-10
JBU1323 JetBlue Airways 4 2026-06-08
JBU70 JetBlue Airways 3 2026-07-19
JBU525 - 3 2026-06-22
JBU2984 - 3 2026-06-13
JBU2930 JetBlue Airways 3 2026-05-10
JBU257 - 3 2026-07-05
JBU2098 - 3 2026-07-04
JBU2054 JetBlue Airways 3 2026-04-29
JBU151 JetBlue Airways 3 2026-05-07
JBU1461 JetBlue Airways 3 2026-07-01
JBU1450 - 3 2026-07-03
JBU1229 JetBlue Airways 3 2026-06-20
JBU929 - 2 2026-07-17
JBU884 JetBlue Airways 2 2026-05-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JBU1948 FLL → MCO Jul 26, 01:14 UTCJul 26, 21:45 UTC20h 32m
2026-07-25 JBU754 PLS → BOS Jul 25, 09:55 UTCJul 25, 11:45 UTC1h 50m
2026-07-25 JBU754 PLS → BOS Jul 25, 09:51 UTCJul 26, 02:00 UTC16h 9m
2026-07-25 JBU275 BDL → SJU Jul 25, 03:15 UTCJul 25, 03:35 UTC20m
2026-07-25 JBU275 BDL → SJU Jul 25, 00:10 UTCJul 25, 00:55 UTC45m
2026-07-24 JBU438 MCO → BDL Jul 24, 20:15 UTCJul 24, 22:40 UTC2h 25m
2026-07-24 JBU83 JFK → SEA Jul 24, 16:25 UTCJul 24, 18:30 UTC2h 5m
2026-07-23 JBU2424 MCO → DCA Jul 23, 22:02 UTCJul 24, 21:45 UTC23h 43m
2026-07-23 JBU1038 MCO → BOS Jul 23, 00:10 UTCJul 23, 23:45 UTC23h 35m
2026-07-22 JBU1038 MCO → BOS Jul 22, 19:45 UTCJul 23, 04:25 UTC8h 40m
2026-07-22 JBU485 ROC → JFK Jul 22, 17:10 UTCJul 22, 18:10 UTC1h 0m
2026-07-22 JBU186 SAN → JFK Jul 22, 14:45 UTCJul 22, 15:40 UTC55m
2026-07-21 JBU186 SAN → JFK Jul 21, 02:17 UTCJul 22, 01:30 UTC23h 13m
2026-07-20 JBU17 - Jul 20, 18:45 UTCJul 20, 23:35 UTC4h 50m
2026-07-20 JBU17 JFK → POS Jul 20, 18:41 UTCJul 21, 15:30 UTC20h 49m
2026-07-20 JBU906 ORD → JFK Jul 20, 15:20 UTCJul 20, 16:55 UTC1h 35m
2026-07-20 JBU905 JFK → ORD Jul 20, 11:55 UTCJul 20, 13:50 UTC1h 55m
2026-07-19 JBU1142 - Jul 19, 16:24 UTCJul 20, 15:45 UTC23h 22m
2026-07-19 JBU70 PBI → JFK Jul 19, 06:00 UTCJul 19, 06:15 UTC15m
2026-07-19 JBU70 PBI → JFK Jul 19, 03:40 UTCJul 19, 05:55 UTC2h 15m
2026-07-19 JBU70 PBI → JFK Jul 19, 03:39 UTCJul 20, 01:45 UTC22h 7m
2026-07-18 JBU54 PBI → JFK Jul 18, 18:25 UTCJul 18, 18:55 UTC30m
2026-07-18 JBU54 PBI → JFK Jul 18, 16:40 UTCJul 18, 16:50 UTC10m
2026-07-18 JBU761 - Jul 18, 10:05 UTCJul 18, 13:25 UTC3h 20m
2026-07-18 JBU462 - Jul 18, 03:30 UTCJul 18, 04:15 UTC45m
2026-07-18 JBU462 - Jul 18, 00:39 UTCJul 18, 00:55 UTC15m
2026-07-17 JBU929 - Jul 17, 22:55 UTCJul 17, 23:20 UTC25m
2026-07-17 JBU929 - Jul 17, 20:20 UTCJul 17, 20:44 UTC25m
2026-07-17 JBU928 - Jul 17, 18:25 UTCJul 17, 18:55 UTC30m
2026-07-16 JBU978 FLL → JAX Jul 16, 22:45 UTCJul 17, 20:44 UTC22h 0m
2026-07-16 JBU1383 GUA → FLL Jul 16, 18:48 UTCJul 17, 16:00 UTC21h 12m
2026-07-16 JBU1799 - Jul 16, 10:10 UTCJul 16, 11:45 UTC1h 35m
2026-07-16 JBU1799 ORF → FLL Jul 16, 10:05 UTCJul 17, 09:04 UTC23h 0m
2026-07-15 JBU1800 - Jul 15, 23:05 UTCJul 16, 01:00 UTC1h 55m
2026-07-15 JBU269 BOS → FLL Jul 15, 16:50 UTCJul 15, 19:45 UTC2h 55m
2026-07-15 JBU322 - Jul 15, 12:05 UTCJul 15, 14:50 UTC2h 45m
2026-07-15 JBU1761 - Jul 15, 00:05 UTCJul 15, 02:20 UTC2h 15m
2026-07-13 JBU686 - Jul 13, 15:50 UTCJul 13, 18:10 UTC2h 20m
2026-07-13 JBU686 FLL → EWR Jul 13, 15:47 UTCJul 14, 10:05 UTC18h 19m
2026-07-13 JBU2489 DTW → FLL Jul 13, 10:10 UTCJul 13, 12:40 UTC2h 30m
2026-07-12 JBU959 BDL → FLL Jul 12, 12:11 UTCJul 13, 11:45 UTC23h 35m
2026-07-11 JBU276 SJU → BDL Jul 11, 23:23 UTCJul 12, 20:10 UTC20h 48m
2026-07-11 JBU2851 TPA → SJU Jul 11, 19:07 UTCJul 12, 17:15 UTC22h 9m
2026-07-11 JBU814 - Jul 11, 11:10 UTCJul 11, 11:45 UTC35m
2026-07-11 JBU814 FLL → HPN Jul 11, 11:06 UTCJul 12, 02:55 UTC15h 50m
2026-07-09 JBU1393 FLL → NAS Jul 9, 19:03 UTCJul 10, 12:55 UTC17h 53m
2026-07-09 JBU1594 - Jul 9, 16:55 UTCJul 9, 17:30 UTC35m
2026-07-09 JBU1594 NAS → FLL Jul 9, 16:44 UTCJul 10, 12:55 UTC20h 12m
2026-07-09 JBU1593 - Jul 9, 14:35 UTCJul 9, 14:55 UTC20m
2026-07-08 JBU513 - Jul 8, 20:00 UTCJul 8, 22:30 UTC2h 30m

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 N583JB page for operator, model, and routing details .

Mode-S A781D7 frequently asked

What is Mode-S code A781D7?
A781D7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N583JB.
Where is Mode-S A781D7 registered?
Mode-S code A781D7 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 A781D7 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A781D7, octal 51700727, decimal 10,977,751.
What flights does A781D7 operate?
Mode-S A781D7 has broadcast 20 distinct callsigns, including JBU472, JBU1104, JBU83, JBU814, JBU54.