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 2h ago
Flights observed
76
Distinct callsigns
20
Country
US
Last broadcast
2h ago

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
JBU1475 JetBlue Airways 3 2026-05-24
JBU8624 JetBlue Airways 2 2026-05-13
JBU8598 - 2 2026-04-16
JBU572 JetBlue Airways 2 2026-04-16
JBU554 JetBlue Airways 2 2026-04-14
JBU543 - 2 2026-04-13
JBU525 JetBlue Airways 2 2026-05-29
JBU403 JetBlue Airways 2 2026-05-27
JBU2760 JetBlue Airways 2 2026-04-15
JBU2516 JetBlue Airways 2 2026-05-20
JBU24 JetBlue Airways 2 2026-05-16
JBU2102 JetBlue Airways 2 2026-05-21
JBU193 JetBlue Airways 2 2026-05-19
JBU1803 JetBlue Airways 2 2026-04-14
JBU1471 JetBlue Airways 2 2026-04-16
JBU1447 - 2 2026-04-13
JBU1368 - 2 2026-04-13
JBU1334 JetBlue Airways 2 2026-05-24
JBU1287 JetBlue Airways 2 2026-05-17
JBU968 JetBlue Airways 1 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 JBU1476 SJU → BDL May 30, 10:10 UTCMay 30, 10:20 UTC10m
2026-05-29 JBU275 BDL → SJU May 29, 22:50 UTCMay 30, 02:06 UTC3h 16m
2026-05-29 JBU276 SJU → BDL May 29, 17:45 UTCMay 29, 21:25 UTC3h 40m
2026-05-29 JBU525 BOS → CLT May 29, 14:55 UTCMay 29, 15:15 UTC20m
2026-05-29 JBU525 BOS → CLT May 29, 12:05 UTCMay 29, 12:35 UTC30m
2026-05-28 JBU1196 FLL → PVD May 28, 22:50 UTCMay 29, 01:20 UTC2h 30m
2026-05-28 JBU105 JFK → ORD May 28, 17:50 UTCMay 28, 20:15 UTC2h 25m
2026-05-27 JBU2941 STX → SJU May 27, 21:42 UTCMay 28, 20:15 UTC22h 33m
2026-05-27 JBU2940 SJU → STX May 27, 19:37 UTCMay 28, 19:00 UTC23h 23m
2026-05-27 JBU403 JFK → SJU May 27, 09:35 UTCMay 27, 10:05 UTC30m
2026-05-27 JBU403 JFK → SJU May 27, 09:35 UTCMay 27, 22:15 UTC12h 40m
2026-05-26 JBU237 BDL → MCO May 26, 19:40 UTCMay 27, 03:45 UTC8h 5m
2026-05-26 JBU1520 ATL → JFK May 26, 14:20 UTCMay 26, 16:00 UTC1h 40m
2026-05-26 JBU519 JFK → ATL May 26, 10:44 UTCMay 26, 12:45 UTC2h 0m
2026-05-25 JBU492 LAX → BUF May 25, 07:20 UTCMay 26, 02:49 UTC19h 30m
2026-05-25 JBU491 BUF → LAX May 25, 00:52 UTCMay 25, 23:00 UTC22h 8m
2026-05-24 JBU1334 SJU → MCO May 24, 16:25 UTCMay 24, 16:45 UTC20m
2026-05-24 JBU1334 SJU → MCO May 24, 16:23 UTCMay 25, 15:00 UTC22h 38m
2026-05-24 JBU1475 BDL → SJU May 24, 14:45 UTCMay 24, 15:10 UTC25m
2026-05-24 JBU1475 BDL → SJU May 24, 11:45 UTCMay 24, 12:20 UTC35m
2026-05-24 JBU1475 BDL → SJU May 24, 11:43 UTCMay 25, 11:00 UTC23h 18m
2026-05-23 JBU2004 RSW → BDL May 23, 22:10 UTCMay 24, 00:40 UTC2h 30m
2026-05-23 JBU1911 EWR → RSW May 23, 18:00 UTCMay 23, 20:25 UTC2h 25m
2026-05-23 JBU306 FLL → EWR May 23, 13:45 UTCMay 23, 16:05 UTC2h 20m
2026-05-22 JBU1801 JFK → NAS May 22, 22:25 UTCMay 23, 00:50 UTC2h 25m
2026-05-22 JBU2401 LGA → CHS May 22, 19:40 UTCMay 22, 20:35 UTC55m
2026-05-22 JBU2402 MSY → BOS May 22, 17:45 UTCMay 22, 18:45 UTC1h 0m
2026-05-21 JBU2037 JFK → STI May 21, 23:00 UTCMay 22, 15:40 UTC16h 40m
2026-05-21 JBU2102 FLL → JFK May 21, 17:05 UTCMay 21, 19:35 UTC2h 30m
2026-05-21 JBU2102 FLL → JFK May 21, 17:05 UTCMay 22, 15:45 UTC22h 41m
2026-05-21 JBU1 JFK → FLL May 21, 11:45 UTCMay 21, 14:15 UTC2h 30m
2026-05-20 JBU315 SYR → JFK May 20, 11:18 UTCMay 21, 01:55 UTC14h 38m
2026-05-20 JBU2516 JFK → SYR May 20, 03:47 UTCMay 21, 01:55 UTC22h 9m
2026-05-20 JBU2516 JFK → SYR May 20, 03:50 UTCMay 20, 04:30 UTC40m
2026-05-19 JBU1052 MCO → BOS May 19, 20:55 UTCMay 20, 00:30 UTC3h 35m
2026-05-19 JBU193 JFK → MCO May 19, 00:04 UTCMay 19, 23:00 UTC22h 56m
2026-05-19 JBU193 JFK → MCO May 19, 00:05 UTCMay 19, 02:05 UTC2h 0m
2026-05-18 JBU1230 CUN → EWR May 18, 16:45 UTCMay 18, 20:10 UTC3h 24m
2026-05-18 JBU1229 EWR → CUN May 18, 11:40 UTCMay 18, 15:00 UTC3h 20m
2026-05-17 JBU1287 PVD → PBI May 17, 17:50 UTCMay 17, 20:15 UTC2h 25m
2026-05-17 JBU1287 PVD → PBI May 17, 17:48 UTCMay 18, 17:00 UTC23h 13m
2026-05-17 JBU1288 PBI → PVD May 17, 13:55 UTCMay 17, 16:25 UTC2h 30m
2026-05-17 JBU2433 DCA → PBI May 17, 10:05 UTCMay 17, 12:01 UTC1h 56m
2026-05-16 JBU24 LAX → JFK May 16, 16:40 UTCMay 16, 18:40 UTC2h 0m
2026-05-16 JBU24 LAX → JFK May 16, 16:38 UTCMay 17, 15:01 UTC22h 23m
2026-05-16 JBU967 JFK → LAX May 16, 12:55 UTCMay 16, 15:16 UTC2h 20m
2026-05-15 JBU1468 PBI → HPN May 15, 22:40 UTCMay 16, 01:10 UTC2h 30m
2026-05-15 JBU1067 HPN → PBI May 15, 19:00 UTCMay 15, 21:20 UTC2h 20m
2026-05-15 JBU968 LAX → JFK May 15, 15:15 UTCMay 15, 17:45 UTC2h 30m
2026-05-15 JBU461 LGA → PBI May 15, 11:40 UTCMay 15, 13:55 UTC2h 15m

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 2h ago.
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 JBU1475, JBU8624, JBU8598, JBU572, JBU554.