sensors Mode-S transponder

A1A0A1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2038J · AIRBUS A-321neo · operated by JETBLUE AIRWAYS CORP

Hex
A1A0A1
Octal
50320241
Decimal
10,592,417
Country
US
Tail
N2038J
Type
A21N
No current signal · last broadcast 29d ago
Flights observed
64
Distinct callsigns
20
Country
US
Last broadcast
29d ago

Last known position

Most recent position reported by Mode-S A1A0A1.

Country allocation

The ICAO 24-bit address A1A0A1 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
JBU1328 JetBlue Airways 7 2026-04-24
JBU596 JetBlue Airways 6 2026-04-25
JBU528 JetBlue Airways 4 2026-04-17
JBU1817 JetBlue Airways 3 2026-04-23
JBU1383 JetBlue Airways 3 2026-04-24
JBU1329 JetBlue Airways 3 2026-04-25
JBU965 JetBlue Airways 2 2026-04-19
JBU939 JetBlue Airways 2 2026-04-20
JBU8529 JetBlue Airways 2 2026-04-27
JBU8521 JetBlue Airways 2 2026-04-28
JBU597 JetBlue Airways 2 2026-04-16
JBU509 JetBlue Airways 2 2026-04-22
JBU505 JetBlue Airways 2 2026-04-17
JBU1587 JetBlue Airways 2 2026-04-14
JBU1584 JetBlue Airways 2 2026-04-21
JBU1256 JetBlue Airways 2 2026-04-17
JBU1255 - 2 2026-04-16
JBU1188 JetBlue Airways 2 2026-04-14
JBU937 - 1 2026-04-13
JBU851 JetBlue Airways 1 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-04-30 JBU1986 PIT → BOS Apr 30, 19:30 UTCApr 30, 21:45 UTC2h 15m
2026-04-30 JBU114 MBJ → MCO Apr 30, 14:35 UTCApr 30, 16:20 UTC1h 45m
2026-04-29 JBU451 BOS → MCO Apr 29, 21:22 UTCApr 30, 20:15 UTC22h 53m
2026-04-29 JBU851 JFK → CUN Apr 29, 11:45 UTCApr 30, 00:15 UTC12h 30m
2026-04-28 JBU551 BOS → MCO Apr 28, 17:11 UTCApr 29, 16:15 UTC23h 5m
2026-04-28 JBU8521 BOS → JFK Apr 28, 08:00 UTCApr 28, 10:30 UTC2h 30m
2026-04-28 JBU8521 BOS → JFK Apr 28, 07:55 UTCApr 29, 00:40 UTC16h 45m
2026-04-27 JBU772 CUN → BOS Apr 27, 21:45 UTCApr 28, 01:30 UTC3h 45m
2026-04-27 JBU8529 BOS → BDL Apr 27, 03:40 UTCApr 27, 04:15 UTC35m
2026-04-27 JBU8529 BOS → BDL Apr 27, 03:37 UTCApr 28, 01:40 UTC22h 3m
2026-04-26 JBU537 JFK → STI Apr 26, 15:10 UTCApr 26, 23:05 UTC7h 55m
2026-04-25 JBU1329 GUA → JFK Apr 25, 20:20 UTCApr 26, 00:55 UTC4h 35m
2026-04-25 JBU1329 GUA → JFK Apr 25, 20:17 UTCApr 26, 15:40 UTC19h 23m
2026-04-25 JBU596 PUJ → BOS Apr 25, 01:09 UTCApr 26, 00:15 UTC23h 6m
2026-04-24 JBU1383 PWM → LGA Apr 24, 18:30 UTCApr 25, 18:15 UTC23h 46m
2026-04-24 JBU1328 JFK → GUA Apr 24, 16:05 UTCApr 24, 16:10 UTC5m
2026-04-24 JBU1328 JFK → GUA Apr 24, 11:55 UTCApr 24, 15:30 UTC3h 35m
2026-04-24 JBU1328 JFK → GUA Apr 24, 11:54 UTCApr 25, 10:15 UTC22h 21m
2026-04-23 JBU1818 POS → JFK Apr 23, 22:05 UTCApr 23, 22:15 UTC10m
2026-04-23 JBU1817 JFK → POS Apr 23, 18:50 UTCApr 23, 20:00 UTC1h 10m
2026-04-23 JBU1817 JFK → POS Apr 23, 15:55 UTCApr 23, 16:15 UTC20m
2026-04-23 JBU1817 JFK → POS Apr 23, 15:51 UTCApr 24, 14:15 UTC22h 24m
2026-04-23 JBU610 DFW → JFK Apr 23, 01:45 UTCApr 23, 13:20 UTC11h 35m
2026-04-22 JBU509 BOS → SEA Apr 22, 14:22 UTCApr 23, 13:20 UTC22h 59m
2026-04-22 JBU509 BOS → SEA Apr 22, 14:25 UTCApr 22, 15:00 UTC35m
2026-04-21 JBU1584 MCO → JFK Apr 21, 15:20 UTCApr 21, 17:35 UTC2h 15m
2026-04-21 JBU1584 MCO → JFK Apr 21, 15:15 UTCApr 22, 14:15 UTC23h 1m
2026-04-21 JBU1483 JFK → MCO Apr 21, 11:10 UTCApr 21, 13:20 UTC2h 10m
2026-04-20 JBU939 JFK → SJD Apr 20, 12:25 UTCApr 20, 16:55 UTC4h 31m
2026-04-20 JBU939 JFK → SJD Apr 20, 12:25 UTCApr 21, 12:15 UTC23h 51m
2026-04-19 JBU965 BOS → RSW Apr 19, 13:45 UTCApr 19, 18:20 UTC4h 35m
2026-04-19 JBU965 BOS → RSW Apr 19, 13:45 UTCApr 20, 01:55 UTC12h 10m
2026-04-18 JBU1329 GUA → JFK Apr 18, 20:09 UTCApr 19, 18:15 UTC22h 6m
2026-04-18 JBU1380 FLL → GUA Apr 18, 15:57 UTCApr 19, 14:15 UTC22h 18m
2026-04-18 JBU596 PUJ → BOS Apr 18, 03:25 UTCApr 18, 04:10 UTC45m
2026-04-18 JBU596 PUJ → BOS Apr 18, 01:25 UTCApr 18, 03:20 UTC1h 55m
2026-04-18 JBU596 PUJ → BOS Apr 18, 01:23 UTCApr 19, 00:15 UTC22h 53m
2026-04-17 JBU1256 GYE → FLL Apr 17, 21:25 UTCApr 17, 21:50 UTC25m
2026-04-17 JBU1256 GYE → FLL Apr 17, 19:40 UTCApr 17, 20:00 UTC20m
2026-04-17 JBU505 EWR → FLL Apr 17, 11:20 UTCApr 17, 12:05 UTC45m
2026-04-17 JBU505 EWR → FLL Apr 17, 09:35 UTCApr 17, 11:15 UTC1h 40m
2026-04-17 JBU528 MCO → EWR Apr 17, 01:20 UTCApr 17, 03:15 UTC1h 55m
2026-04-16 JBU528 MCO → EWR Apr 16, 23:20 UTCApr 17, 01:15 UTC1h 55m
2026-04-16 JBU1255 - Apr 16, 15:30 UTCApr 16, 17:10 UTC1h 40m
2026-04-16 JBU597 BOS → ATL Apr 16, 11:09 UTCApr 16, 12:49 UTC1h 40m
2026-04-16 JBU597 BOS → ATL Apr 16, 10:12 UTCApr 16, 11:04 UTC53m
2026-04-16 JBU596 PUJ → BOS Apr 16, 03:09 UTCApr 16, 03:49 UTC40m
2026-04-16 JBU596 PUJ → BOS Apr 16, 01:15 UTCApr 16, 03:04 UTC1h 50m
2026-04-15 JBU1383 PWM → LGA Apr 15, 19:05 UTCApr 15, 20:35 UTC1h 30m
2026-04-15 JBU1383 PWM → LGA Apr 15, 18:20 UTCApr 15, 19:00 UTC40m

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 N2038J page for operator, model, and routing details .

Mode-S A1A0A1 frequently asked

What is Mode-S code A1A0A1?
A1A0A1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2038J.
Where is Mode-S A1A0A1 registered?
Mode-S code A1A0A1 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 A1A0A1 broadcasting right now?
No active broadcast right now. Last signal was 29d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1A0A1, octal 50320241, decimal 10,592,417.
What flights does A1A0A1 operate?
Mode-S A1A0A1 has broadcast 20 distinct callsigns, including JBU1328, JBU596, JBU528, JBU1817, JBU1383.