Apparatus

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sensors Mode-S transponder

A849AB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N633JB · AIRBUS A-320 · operated by JETBLUE AIRWAYS CORP

Hex
A849AB
Octal
52044653
Decimal
11,028,907
Country
US
Tail
N633JB
Type
A320
No current signal · last broadcast 2h ago
Flights observed
148
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A849AB.

Country allocation

The ICAO 24-bit address A849AB 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
JBU2251 JetBlue Airways 5 2026-04-21
JBU1067 JetBlue Airways 4 2026-05-17
JBU534 JetBlue Airways 3 2026-05-27
JBU465 JetBlue Airways 3 2026-04-15
JBU1051 JetBlue Airways 3 2026-04-29
JBU1016 JetBlue Airways 3 2026-05-22
JBU998 JetBlue Airways 2 2026-05-16
JBU997 JetBlue Airways 2 2026-05-20
JBU98 JetBlue Airways 2 2026-05-10
JBU97 JetBlue Airways 2 2026-05-10
JBU968 JetBlue Airways 2 2026-05-17
JBU959 JetBlue Airways 2 2026-04-24
JBU834 JetBlue Airways 2 2026-04-15
JBU754 JetBlue Airways 2 2026-04-17
JBU741 JetBlue Airways 2 2026-05-11
JBU675 JetBlue Airways 2 2026-05-15
JBU58 JetBlue Airways 2 2026-05-01
JBU52 - 2 2026-04-15
JBU371 JetBlue Airways 2 2026-04-18
JBU2825 - 2 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 JBU2389 EWR → SJU May 30, 01:02 UTCMay 30, 12:55 UTC11h 54m
2026-05-29 JBU1912 RSW → EWR May 29, 19:20 UTCMay 29, 21:45 UTC2h 25m
2026-05-29 JBU1912 RSW → EWR May 29, 19:15 UTCMay 30, 12:55 UTC17h 41m
2026-05-29 JBU565 BOS → RSW May 29, 14:50 UTCMay 29, 17:35 UTC2h 45m
2026-05-28 JBU1552 RSW → HPN May 28, 14:45 UTCMay 28, 17:30 UTC2h 45m
2026-05-28 JBU1552 RSW → HPN May 28, 14:45 UTCMay 29, 01:25 UTC10h 40m
2026-05-28 JBU1551 HPN → RSW May 28, 10:45 UTCMay 28, 13:30 UTC2h 45m
2026-05-27 JBU534 SFO → BOS May 27, 16:20 UTCMay 27, 18:35 UTC2h 15m
2026-05-27 JBU534 SFO → BOS May 27, 16:16 UTCMay 28, 14:45 UTC22h 29m
2026-05-27 JBU2273 EWR → TPA May 27, 12:45 UTCMay 27, 15:05 UTC2h 20m
2026-05-26 JBU106 FLL → EWR May 26, 21:29 UTCMay 26, 23:49 UTC2h 20m
2026-05-26 JBU513 ISP → FLL May 26, 16:35 UTCMay 26, 19:10 UTC2h 35m
2026-05-26 JBU514 SDQ → EWR May 26, 13:04 UTCMay 26, 15:24 UTC2h 20m
2026-05-26 JBU2154 DCA → BOS May 26, 01:44 UTCMay 26, 04:04 UTC2h 20m
2026-05-25 JBU2941 STX → SJU May 25, 22:00 UTCMay 25, 22:10 UTC10m
2026-05-25 JBU2940 SJU → STX May 25, 19:35 UTCMay 25, 19:50 UTC15m
2026-05-25 JBU1632 LGA → BOS May 25, 17:50 UTCMay 25, 18:05 UTC15m
2026-05-25 JBU1731 SLC → LAX May 25, 15:40 UTCMay 25, 15:55 UTC15m
2026-05-24 JBU1168 PBI → HPN May 24, 19:30 UTCMay 24, 21:50 UTC2h 20m
2026-05-24 JBU1168 PBI → HPN May 24, 19:26 UTCMay 25, 18:05 UTC22h 40m
2026-05-24 JBU2143 JFK → LGW May 24, 15:30 UTCMay 24, 17:50 UTC2h 20m
2026-05-24 JBU2274 TPA → EWR May 24, 11:50 UTCMay 24, 14:00 UTC2h 10m
2026-05-23 JBU40 MDE → FLL May 23, 18:36 UTCMay 24, 16:45 UTC22h 10m
2026-05-23 JBU1703 SJU → MDE May 23, 14:45 UTCMay 24, 12:45 UTC22h 0m
2026-05-22 JBU1016 JFK → BOS May 22, 19:12 UTCMay 23, 15:30 UTC20h 18m
2026-05-22 JBU1016 JFK → BOS May 22, 15:40 UTCMay 22, 22:40 UTC7h 0m
2026-05-22 JBU1822 BOS → PBI May 22, 12:15 UTCMay 22, 13:55 UTC1h 40m
2026-05-21 JBU1739 SYR → FLL May 21, 14:01 UTCMay 22, 12:45 UTC22h 44m
2026-05-21 JBU1738 MCO → BDL May 21, 10:01 UTCMay 22, 03:00 UTC17h 0m
2026-05-20 JBU997 BOS → JFK May 20, 19:30 UTCMay 20, 22:10 UTC2h 40m
2026-05-20 JBU997 BOS → JFK May 20, 19:28 UTCMay 21, 16:45 UTC21h 18m
2026-05-20 JBU2075 BOS → PUJ May 20, 15:45 UTCMay 20, 18:05 UTC2h 20m
2026-05-20 JBU1443 MHT → MCO May 20, 10:15 UTCMay 20, 12:45 UTC2h 30m
2026-05-19 JBU1144 MCO → EWR May 19, 16:05 UTCMay 19, 18:45 UTC2h 40m
2026-05-19 JBU183 BOS → RDU May 19, 12:35 UTCMay 19, 14:40 UTC2h 5m
2026-05-18 JBU517 BOS → JFK May 18, 19:35 UTCMay 18, 20:15 UTC40m
2026-05-18 JBU892 TPA → BOS May 18, 15:20 UTCMay 18, 17:55 UTC2h 35m
2026-05-17 JBU1067 HPN → PBI May 17, 18:50 UTCMay 17, 21:10 UTC2h 20m
2026-05-17 JBU1067 HPN → PBI May 17, 18:49 UTCMay 18, 18:45 UTC23h 56m
2026-05-17 JBU968 LAX → JFK May 17, 14:55 UTCMay 17, 17:25 UTC2h 30m
2026-05-17 JBU461 LGA → PBI May 17, 11:15 UTCMay 17, 13:35 UTC2h 20m
2026-05-16 JBU998 MCO → LGA May 16, 23:20 UTCMay 17, 01:30 UTC2h 10m
2026-05-16 JBU987 ORH → MCO May 16, 18:15 UTCMay 16, 20:35 UTC2h 20m
2026-05-16 JBU588 LAX → BOS May 16, 14:35 UTCMay 16, 17:10 UTC2h 35m
2026-05-16 JBU1443 MHT → MCO May 16, 10:16 UTCMay 16, 12:55 UTC2h 40m
2026-05-15 JBU675 JFK → MSY May 15, 03:20 UTCMay 15, 03:50 UTC30m
2026-05-15 JBU675 JFK → MSY May 15, 03:18 UTCMay 15, 18:50 UTC15h 32m
2026-05-15 JBU2404 SJU → JFK May 15, 00:05 UTCMay 15, 01:50 UTC1h 45m
2026-05-14 JBU2404 SJU → JFK May 14, 22:00 UTCMay 14, 22:20 UTC20m
2026-05-14 JBU1719 JFK → ATL May 14, 19:30 UTCMay 14, 19:50 UTC20m

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 N633JB page for operator, model, and routing details .

Mode-S A849AB frequently asked

What is Mode-S code A849AB?
A849AB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N633JB.
Where is Mode-S A849AB registered?
Mode-S code A849AB 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 A849AB broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A849AB, octal 52044653, decimal 11,028,907.
What flights does A849AB operate?
Mode-S A849AB has broadcast 20 distinct callsigns, including JBU2251, JBU1067, JBU534, JBU465, JBU1051.