Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A854D0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N636JB · AIRBUS A-320 · operated by JETBLUE AIRWAYS CORP

Hex
A854D0
Octal
52052320
Decimal
11,031,760
Country
US
Tail
N636JB
Type
A320
No current signal · last broadcast 22d ago
Flights observed
223
Distinct callsigns
20
Country
US
Last broadcast
22d ago

Last known position

Most recent position reported by Mode-S A854D0.

Country allocation

The ICAO 24-bit address A854D0 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
JBU1047 JetBlue Airways 8 2026-06-12
JBU754 JetBlue Airways 5 2026-05-20
JBU395 JetBlue Airways 4 2026-05-09
JBU39 JetBlue Airways 4 2026-06-08
JBU1903 JetBlue Airways 4 2026-05-26
JBU1568 JetBlue Airways 4 2026-05-29
JBU1230 JetBlue Airways 4 2026-04-22
JBU862 JetBlue Airways 3 2026-06-20
JBU851 JetBlue Airways 3 2026-05-04
JBU814 JetBlue Airways 3 2026-04-17
JBU676 JetBlue Airways 3 2026-05-29
JBU605 JetBlue Airways 3 2026-04-22
JBU389 JetBlue Airways 3 2026-05-17
JBU2752 - 3 2026-06-18
JBU2536 JetBlue Airways 3 2026-05-16
JBU1743 JetBlue Airways 3 2026-05-18
JBU1742 JetBlue Airways 3 2026-05-17
JBU1229 JetBlue Airways 3 2026-04-22
JBU1144 JetBlue Airways 3 2026-05-28
JBU1015 JetBlue Airways 3 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-21 JBU8597 - Jun 21, 13:04 UTCJun 21, 15:15 UTC2h 10m
2026-06-20 JBU862 PBI → LGA Jun 20, 13:24 UTCJun 20, 15:09 UTC1h 45m
2026-06-20 JBU862 PBI → LGA Jun 20, 11:05 UTCJun 20, 11:20 UTC15m
2026-06-20 JBU862 PBI → LGA Jun 20, 11:04 UTCJun 21, 03:30 UTC16h 26m
2026-06-20 JBU561 BOS → SJU Jun 20, 02:54 UTCJun 20, 06:24 UTC3h 30m
2026-06-19 JBU2052 MCO → BOS Jun 19, 22:55 UTCJun 20, 01:14 UTC2h 20m
2026-06-19 JBU2918 JFK → BOS Jun 19, 03:19 UTCJun 20, 01:19 UTC22h 1m
2026-06-18 JBU126 TPA → JFK Jun 18, 10:28 UTCJun 19, 04:10 UTC17h 42m
2026-06-18 JBU2752 - Jun 18, 04:05 UTCJun 18, 04:55 UTC50m
2026-06-18 JBU2752 - Jun 18, 02:25 UTCJun 18, 02:40 UTC15m
2026-06-18 JBU2752 SJU → TPA Jun 18, 02:22 UTCJun 19, 00:59 UTC22h 38m
2026-06-18 JBU153 - Jun 18, 01:05 UTCJun 18, 01:15 UTC10m
2026-06-17 JBU153 - Jun 17, 23:05 UTCJun 17, 23:30 UTC25m
2026-06-17 JBU2008 - Jun 17, 01:15 UTCJun 17, 03:35 UTC2h 20m
2026-06-17 JBU2008 FLL → PIT Jun 17, 01:14 UTCJun 17, 23:30 UTC22h 17m
2026-06-16 JBU1579 DCA → FLL Jun 16, 20:30 UTCJun 16, 22:30 UTC2h 0m
2026-06-16 JBU1680 - Jun 16, 17:05 UTCJun 16, 19:05 UTC2h 0m
2026-06-16 JBU1471 LGA → FLL Jun 16, 12:45 UTCJun 16, 15:15 UTC2h 30m
2026-06-15 JBU1962 PBI → LGA Jun 15, 22:20 UTCJun 16, 00:45 UTC2h 25m
2026-06-15 JBU367 - Jun 15, 18:29 UTCJun 15, 21:04 UTC2h 35m
2026-06-14 JBU914 FLL → HPN Jun 14, 23:40 UTCJun 15, 21:04 UTC21h 25m
2026-06-14 JBU513 ISP → FLL Jun 14, 19:15 UTCJun 15, 17:15 UTC22h 0m
2026-06-14 JBU959 BDL → FLL Jun 14, 11:10 UTCJun 15, 02:15 UTC15h 5m
2026-06-13 JBU514 - Jun 13, 16:30 UTCJun 13, 18:50 UTC2h 20m
2026-06-13 JBU514 FLL → ISP Jun 13, 16:29 UTCJun 14, 16:00 UTC23h 31m
2026-06-13 JBU1754 SJU → FLL Jun 13, 14:25 UTCJun 13, 15:00 UTC35m
2026-06-13 JBU1754 SJU → FLL Jun 13, 12:40 UTCJun 13, 12:50 UTC10m
2026-06-12 JBU1047 BOS → JFK Jun 12, 21:00 UTCJun 12, 21:10 UTC10m
2026-06-12 JBU1047 BOS → JFK Jun 12, 16:20 UTCJun 12, 19:45 UTC3h 25m
2026-06-12 JBU1048 - Jun 12, 11:05 UTCJun 12, 14:40 UTC3h 35m
2026-06-11 JBU1822 BOS → PBI Jun 11, 12:08 UTCJun 12, 11:25 UTC23h 18m
2026-06-11 JBU2823 BOS → STI Jun 11, 01:04 UTCJun 11, 23:50 UTC22h 46m
2026-06-10 JBU2694 JFK → BOS Jun 10, 21:57 UTCJun 11, 20:00 UTC22h 3m
2026-06-10 JBU1693 FLL → NAS Jun 10, 20:05 UTCJun 11, 20:00 UTC23h 55m
2026-06-10 JBU1576 KIN → FLL Jun 10, 16:06 UTCJun 11, 16:00 UTC23h 54m
2026-06-10 JBU1375 FLL → KIN Jun 10, 13:35 UTCJun 10, 14:10 UTC35m
2026-06-09 JBU1480 FLL → DCA Jun 9, 11:29 UTCJun 9, 18:00 UTC6h 31m
2026-06-08 JBU39 FLL → SJO Jun 8, 15:15 UTCJun 8, 15:45 UTC30m
2026-06-08 JBU39 FLL → SJO Jun 8, 15:13 UTCJun 9, 13:40 UTC22h 27m
2026-06-08 JBU27 BOS → BWI Jun 8, 10:15 UTCJun 8, 13:20 UTC3h 5m
2026-06-07 JBU579 DCA → FLL Jun 7, 15:31 UTCJun 8, 13:20 UTC21h 49m
2026-06-06 JBU2374 PUJ → FLL Jun 6, 18:46 UTCJun 7, 17:30 UTC22h 44m
2026-06-06 JBU1015 EWR → PUJ Jun 6, 14:00 UTCJun 6, 20:55 UTC6h 55m
2026-06-06 JBU706 FLL → EWR Jun 6, 00:15 UTCJun 6, 02:40 UTC2h 25m
2026-06-05 JBU38 SJO → FLL Jun 5, 16:00 UTCJun 5, 22:00 UTC6h 0m
2026-06-05 JBU375 PVD → MCO Jun 5, 11:50 UTCJun 5, 14:35 UTC2h 45m
2026-06-04 JBU1398 BOS → PDX Jun 4, 18:56 UTCJun 5, 18:00 UTC23h 4m
2026-06-04 JBU1398 BOS → PDX Jun 4, 16:45 UTCJun 4, 20:15 UTC3h 30m
2026-06-04 JBU375 PVD → MCO Jun 4, 12:35 UTCJun 4, 15:25 UTC2h 50m
2026-06-03 JBU39 FLL → SJO Jun 3, 15:25 UTCJun 3, 15:55 UTC30m

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 N636JB page for operator, model, and routing details .

Mode-S A854D0 frequently asked

What is Mode-S code A854D0?
A854D0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N636JB.
Where is Mode-S A854D0 registered?
Mode-S code A854D0 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 A854D0 broadcasting right now?
No active broadcast right now. Last signal was 22d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A854D0, octal 52052320, decimal 11,031,760.
What flights does A854D0 operate?
Mode-S A854D0 has broadcast 20 distinct callsigns, including JBU1047, JBU754, JBU395, JBU39, JBU1903.