sensors Mode-S transponder

A1B2A8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2084J · AIRBUS A-321neo · operated by UMB BANK NA TRUSTEE

Hex
A1B2A8
Octal
50331250
Decimal
10,597,032
Country
US
Tail
N2084J
Type
A21N
No current signal · last broadcast 28d ago
Flights observed
61
Distinct callsigns
20
Country
US
Last broadcast
28d ago

Last known position

Most recent position reported by Mode-S A1B2A8.

Country allocation

The ICAO 24-bit address A1B2A8 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
JBU387 JetBlue Airways 4 2026-04-17
JBU1360 JetBlue Airways 4 2026-04-15
JBU1359 - 4 2026-04-15
JBU1328 JetBlue Airways 4 2026-04-20
JBU8627 JetBlue Airways 3 2026-05-01
JBU561 JetBlue Airways 3 2026-04-22
JBU1584 JetBlue Airways 3 2026-05-01
JBU1483 JetBlue Airways 3 2026-05-01
JBU1383 JetBlue Airways 3 2026-04-20
JBU1370 JetBlue Airways 3 2026-04-20
JBU1124 JetBlue Airways 3 2026-04-18
JBU939 - 2 2026-04-13
JBU509 JetBlue Airways 2 2026-04-28
JBU505 JetBlue Airways 2 2026-04-24
JBU1966 JetBlue Airways 2 2026-04-13
JBU1877 JetBlue Airways 2 2026-04-21
JBU966 JetBlue Airways 1 2026-04-29
JBU965 JetBlue Airways 1 2026-04-29
JBU938 - 1 2026-04-13
JBU662 JetBlue Airways 1 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-01 JBU8627 ATL → MZJ May 1, 22:10 UTCMay 1, 23:45 UTC1h 35m
2026-05-01 JBU8627 ATL → MZJ May 1, 19:05 UTCMay 1, 21:55 UTC2h 50m
2026-05-01 JBU8627 ATL → MZJ May 1, 19:00 UTCMay 1, 23:45 UTC4h 45m
2026-05-01 JBU1584 MCO → JFK May 1, 15:20 UTCMay 1, 17:20 UTC2h 0m
2026-05-01 JBU1483 JFK → MCO May 1, 11:10 UTCMay 1, 13:30 UTC2h 20m
2026-04-29 JBU966 BOS → ATL Apr 29, 21:30 UTCApr 30, 03:00 UTC5h 30m
2026-04-29 JBU965 BOS → RSW Apr 29, 15:00 UTCApr 29, 23:45 UTC8h 44m
2026-04-28 JBU509 BOS → SEA Apr 28, 14:15 UTCApr 28, 14:50 UTC35m
2026-04-28 JBU509 BOS → SEA Apr 28, 14:14 UTCApr 28, 23:40 UTC9h 26m
2026-04-27 JBU1483 JFK → MCO Apr 27, 12:43 UTCApr 27, 19:05 UTC6h 23m
2026-04-27 JBU602 FLL → JFK Apr 27, 01:14 UTCApr 27, 19:05 UTC17h 52m
2026-04-26 JBU1801 JFK → NAS Apr 26, 19:02 UTCApr 27, 18:00 UTC22h 58m
2026-04-26 JBU1584 MCO → JFK Apr 26, 15:15 UTCApr 26, 17:30 UTC2h 15m
2026-04-26 JBU1584 MCO → JFK Apr 26, 15:15 UTCApr 27, 14:00 UTC22h 45m
2026-04-26 JBU1483 JFK → MCO Apr 26, 11:20 UTCApr 26, 13:30 UTC2h 10m
2026-04-25 JBU528 MCO → EWR Apr 25, 15:30 UTCApr 26, 03:00 UTC11h 30m
2026-04-25 JBU569 BOS → FLL Apr 25, 10:15 UTCApr 25, 13:30 UTC3h 15m
2026-04-24 JBU1256 GYE → FLL Apr 24, 17:32 UTCApr 25, 15:55 UTC22h 23m
2026-04-24 JBU505 EWR → FLL Apr 24, 09:30 UTCApr 24, 13:25 UTC3h 55m
2026-04-24 JBU505 EWR → FLL Apr 24, 09:29 UTCApr 25, 05:20 UTC19h 51m
2026-04-23 JBU1255 FLL → GYE Apr 23, 15:13 UTCApr 24, 13:25 UTC22h 12m
2026-04-23 JBU662 BGI → JFK Apr 23, 03:30 UTCApr 23, 03:55 UTC25m
2026-04-22 JBU561 BOS → SJU Apr 22, 22:40 UTCApr 23, 17:05 UTC18h 26m
2026-04-22 JBU561 BOS → SJU Apr 22, 22:40 UTCApr 23, 02:10 UTC3h 30m
2026-04-22 JBU1878 SXM → BOS Apr 22, 16:00 UTCApr 22, 19:40 UTC3h 40m
2026-04-21 JBU561 BOS → SJU Apr 21, 22:35 UTCApr 22, 22:00 UTC23h 26m
2026-04-21 JBU1877 BOS → SXM Apr 21, 10:35 UTCApr 21, 14:05 UTC3h 30m
2026-04-21 JBU1877 BOS → SXM Apr 21, 10:33 UTCApr 22, 10:00 UTC23h 28m
2026-04-20 JBU1370 MCO → RIC Apr 20, 23:55 UTCApr 21, 02:40 UTC2h 45m
2026-04-20 JBU1383 PWM → LGA Apr 20, 18:15 UTCApr 20, 20:30 UTC2h 15m
2026-04-20 JBU1328 JFK → GUA Apr 20, 11:50 UTCApr 20, 16:15 UTC4h 25m
2026-04-18 JBU1188 SXM → JFK Apr 18, 14:50 UTCApr 19, 00:50 UTC10h 0m
2026-04-18 JBU1124 LAX → JFK Apr 18, 01:25 UTCApr 18, 02:50 UTC1h 25m
2026-04-17 JBU1124 LAX → JFK Apr 17, 23:25 UTCApr 18, 01:20 UTC1h 55m
2026-04-17 JBU1124 LAX → JFK Apr 17, 22:00 UTCApr 17, 23:20 UTC1h 20m
2026-04-17 JBU387 BOS → SEA Apr 17, 19:25 UTCApr 17, 20:20 UTC55m
2026-04-17 JBU387 BOS → SEA Apr 17, 17:25 UTCApr 17, 19:20 UTC1h 55m
2026-04-17 JBU387 BOS → SEA Apr 17, 15:20 UTCApr 17, 17:15 UTC1h 55m
2026-04-17 JBU387 BOS → SEA Apr 17, 14:19 UTCApr 17, 15:15 UTC56m
2026-04-17 JBU1370 MCO → RIC Apr 17, 01:20 UTCApr 17, 02:30 UTC1h 10m
2026-04-16 JBU1370 MCO → RIC Apr 16, 23:55 UTCApr 17, 01:15 UTC1h 20m
2026-04-16 JBU1383 PWM → LGA Apr 16, 19:15 UTCApr 16, 20:45 UTC1h 30m
2026-04-16 JBU1383 PWM → LGA Apr 16, 18:35 UTCApr 16, 18:50 UTC15m
2026-04-16 JBU1328 JFK → GUA Apr 16, 15:15 UTCApr 16, 16:10 UTC55m
2026-04-16 JBU1328 JFK → GUA Apr 16, 13:15 UTCApr 16, 15:10 UTC1h 55m
2026-04-16 JBU1328 JFK → GUA Apr 16, 11:54 UTCApr 16, 13:05 UTC1h 10m
2026-04-15 JBU1360 KIN → JFK Apr 15, 23:10 UTCApr 15, 23:20 UTC10m
2026-04-15 JBU1360 KIN → JFK Apr 15, 21:05 UTCApr 15, 23:00 UTC1h 55m
2026-04-15 JBU1359 - Apr 15, 15:05 UTCApr 15, 16:50 UTC1h 45m
2026-04-15 JBU1359 JFK → KIN Apr 15, 14:24 UTCApr 15, 14:55 UTC31m

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 N2084J page for operator, model, and routing details .

Mode-S A1B2A8 frequently asked

What is Mode-S code A1B2A8?
A1B2A8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2084J.
Where is Mode-S A1B2A8 registered?
Mode-S code A1B2A8 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 A1B2A8 broadcasting right now?
No active broadcast right now. Last signal was 28d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1B2A8, octal 50331250, decimal 10,597,032.
What flights does A1B2A8 operate?
Mode-S A1B2A8 has broadcast 20 distinct callsigns, including JBU387, JBU1360, JBU1359, JBU1328, JBU8627.