Apparatus

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sensors Mode-S transponder

AB355C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N821JB · AIRBUS A-320 · operated by JETBLUE AIRWAYS CORP

Hex
AB355C
Octal
52632534
Decimal
11,220,316
Country
US
Tail
N821JB
Type
A320
No current signal · last broadcast Jul 26, 22:40 UTC
Flights observed
243
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:40 UTC

Last known position

Most recent position reported by Mode-S AB355C.

Country allocation

The ICAO 24-bit address AB355C 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
JBU572 JetBlue Airways 5 2026-06-13
JBU1475 - 5 2026-06-23
JBU861 - 4 2026-07-07
JBU403 - 4 2026-07-16
JBU1704 JetBlue Airways 3 2026-07-18
JBU1471 JetBlue Airways 3 2026-06-08
JBU1447 - 3 2026-06-28
JBU947 - 2 2026-06-25
JBU8624 JetBlue Airways 2 2026-05-13
JBU8598 - 2 2026-04-16
JBU664 - 2 2026-07-13
JBU66 JetBlue Airways 2 2026-07-21
JBU598 JetBlue Airways 2 2026-06-05
JBU562 - 2 2026-07-06
JBU554 JetBlue Airways 2 2026-04-14
JBU543 - 2 2026-04-13
JBU525 JetBlue Airways 2 2026-05-29
JBU2918 JetBlue Airways 2 2026-06-12
JBU2884 - 2 2026-07-03
JBU282 - 2 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JBU130 RSW → JFK Jul 26, 10:10 UTCJul 26, 12:30 UTC2h 20m
2026-07-26 JBU130 RSW → JFK Jul 26, 10:10 UTCJul 26, 22:40 UTC12h 31m
2026-07-26 JBU2129 BOS → SDQ Jul 26, 01:45 UTCJul 26, 04:20 UTC2h 35m
2026-07-25 JBU817 BOS → JFK Jul 25, 23:20 UTCJul 26, 00:00 UTC40m
2026-07-25 JBU70 PBI → JFK Jul 25, 18:55 UTCJul 25, 21:50 UTC2h 55m
2026-07-25 JBU106 FLL → EWR Jul 25, 01:27 UTCJul 26, 00:05 UTC22h 38m
2026-07-24 JBU2094 MIA → EWR Jul 24, 17:33 UTCJul 25, 14:45 UTC21h 12m
2026-07-24 JBU613 HPN → FLL Jul 24, 13:42 UTCJul 25, 13:00 UTC23h 18m
2026-07-24 JBU1294 MCO → HPN Jul 24, 00:10 UTCJul 24, 02:30 UTC2h 20m
2026-07-24 JBU1294 MCO → HPN Jul 24, 00:05 UTCJul 24, 21:00 UTC20h 55m
2026-07-23 JBU595 HPN → MCO Jul 23, 20:10 UTCJul 23, 22:20 UTC2h 10m
2026-07-23 JBU194 STI → EWR Jul 23, 16:00 UTCJul 23, 18:15 UTC2h 15m
2026-07-23 JBU127 EWR → MCO Jul 23, 11:45 UTCJul 23, 14:05 UTC2h 20m
2026-07-22 JBU1796 CUN → FLL Jul 22, 17:35 UTCJul 22, 18:55 UTC1h 20m
2026-07-22 JBU1796 CUN → FLL Jul 22, 17:31 UTCJul 23, 17:00 UTC23h 29m
2026-07-22 JBU2795 FLL → CUN Jul 22, 14:40 UTCJul 22, 16:00 UTC1h 20m
2026-07-22 JBU2489 DTW → FLL Jul 22, 10:20 UTCJul 22, 12:40 UTC2h 20m
2026-07-22 JBU2290 FLL → DTW Jul 22, 02:15 UTCJul 22, 04:55 UTC2h 40m
2026-07-21 JBU66 RSW → BOS Jul 21, 05:25 UTCJul 22, 04:55 UTC23h 30m
2026-07-20 JBU1184 MCO → JFK Jul 20, 11:16 UTCJul 21, 09:05 UTC21h 49m
2026-07-20 JBU1184 MCO → JFK Jul 20, 11:20 UTCJul 20, 13:20 UTC2h 0m
2026-07-20 JBU1134 - Jul 20, 07:10 UTCJul 20, 07:50 UTC40m
2026-07-20 JBU1134 - Jul 20, 05:20 UTCJul 20, 05:40 UTC20m
2026-07-18 JBU1704 MDE → SJU Jul 18, 23:30 UTCJul 18, 23:45 UTC15m
2026-07-18 JBU1704 MDE → SJU Jul 18, 21:30 UTCJul 18, 22:50 UTC1h 20m
2026-07-18 JBU1704 MDE → SJU Jul 18, 21:23 UTCJul 18, 23:45 UTC2h 23m
2026-07-18 JBU41 FLL → MDE Jul 18, 17:20 UTCJul 18, 20:10 UTC2h 50m
2026-07-18 JBU2289 AMS → JFK Jul 18, 12:00 UTCJul 18, 14:20 UTC2h 20m
2026-07-18 JBU1590 - Jul 18, 01:30 UTCJul 18, 03:50 UTC2h 21m
2026-07-17 JBU2090 - Jul 17, 17:15 UTCJul 17, 22:29 UTC5h 15m
2026-07-16 JBU2481 BOS → RIC Jul 16, 23:00 UTCJul 17, 21:00 UTC22h 0m
2026-07-16 JBU2118 FLL → JAX Jul 16, 17:28 UTCJul 17, 15:05 UTC21h 37m
2026-07-16 JBU403 - Jul 16, 09:25 UTCJul 16, 10:04 UTC40m
2026-07-16 JBU403 JFK → SJU Jul 16, 09:20 UTCJul 17, 01:00 UTC15h 40m
2026-07-16 JBU282 - Jul 16, 02:15 UTCJul 16, 02:50 UTC35m
2026-07-15 JBU282 - Jul 15, 23:35 UTCJul 16, 02:10 UTC2h 35m
2026-07-15 JBU281 - Jul 15, 18:45 UTCJul 15, 21:55 UTC3h 10m
2026-07-15 JBU906 - Jul 15, 14:50 UTCJul 15, 16:35 UTC1h 45m
2026-07-15 JBU905 JFK → ORD Jul 15, 11:15 UTCJul 15, 13:15 UTC2h 0m
2026-07-14 JBU676 BDL → JFK Jul 14, 10:29 UTCJul 15, 01:50 UTC15h 21m
2026-07-13 JBU664 ORD → FLL Jul 13, 12:15 UTCJul 13, 14:45 UTC2h 30m
2026-07-13 JBU664 ORD → FLL Jul 13, 12:12 UTCJul 14, 11:00 UTC22h 49m
2026-07-13 JBU863 - Jul 13, 01:50 UTCJul 13, 04:30 UTC2h 40m
2026-07-12 JBU1450 - Jul 12, 22:05 UTCJul 12, 23:40 UTC1h 35m
2026-07-12 JBU593 - Jul 12, 16:45 UTCJul 12, 18:01 UTC1h 15m
2026-07-12 JBU2144 - Jul 12, 11:55 UTCJul 12, 14:10 UTC2h 15m
2026-07-11 JBU1552 RSW → HPN Jul 11, 15:00 UTCJul 12, 13:01 UTC22h 1m
2026-07-10 JBU1014 CUN → MCO Jul 10, 19:17 UTCJul 11, 17:45 UTC22h 29m
2026-07-10 JBU2722 MSY → FLL Jul 10, 00:18 UTCJul 10, 21:25 UTC21h 8m
2026-07-09 JBU1204 SDQ → EWR Jul 9, 07:38 UTCJul 10, 05:45 UTC22h 7m

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 N821JB page for operator, model, and routing details .

Mode-S AB355C frequently asked

What is Mode-S code AB355C?
AB355C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N821JB.
Where is Mode-S AB355C registered?
Mode-S code AB355C 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 AB355C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB355C, octal 52632534, decimal 11,220,316.
What flights does AB355C operate?
Mode-S AB355C has broadcast 20 distinct callsigns, including JBU572, JBU1475, JBU861, JBU403, JBU1704.