Apparatus

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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
Broadcasting now · callsign JBU505 · 1,500 ft
Flights observed
121
Distinct callsigns
20
Country
US
Last broadcast
10h ago

Current position

A1A0A1 is currently broadcasting. Map zoomed to live position.

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 - 5 2026-07-12
JBU1188 - 5 2026-06-29
JBU505 - 4 2026-07-11
JBU380 - 3 2026-07-06
JBU309 - 3 2026-07-08
JBU1965 - 3 2026-06-22
JBU1817 JetBlue Airways 3 2026-04-23
JBU1383 JetBlue Airways 3 2026-04-24
JBU1329 JetBlue Airways 3 2026-04-25
JBU1256 - 3 2026-07-11
JBU965 JetBlue Airways 2 2026-04-19
JBU939 JetBlue Airways 2 2026-04-20
JBU8642 - 2 2026-06-19
JBU8529 JetBlue Airways 2 2026-04-27
JBU8521 JetBlue Airways 2 2026-04-28
JBU788 - 2 2026-07-04
JBU610 - 2 2026-07-07
JBU597 JetBlue Airways 2 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 JBU58 - Jul 13, 21:20 UTCJul 14, 00:35 UTC3h 15m
2026-07-13 JBU58 - Jul 13, 20:20 UTCJul 13, 20:35 UTC15m
2026-07-13 JBU57 - Jul 13, 18:10 UTCJul 13, 18:25 UTC15m
2026-07-13 JBU57 - Jul 13, 14:15 UTCJul 13, 17:30 UTC3h 15m
2026-07-13 JBU604 - Jul 13, 06:45 UTCJul 13, 11:35 UTC4h 50m
2026-07-12 JBU528 GYE → JFK Jul 12, 14:40 UTCJul 13, 14:15 UTC23h 36m
2026-07-11 JBU1256 GYE → FLL Jul 11, 18:35 UTCJul 12, 17:05 UTC22h 31m
2026-07-11 JBU505 - Jul 11, 11:00 UTCJul 11, 14:35 UTC3h 35m
2026-07-11 JBU505 JFK → GYE Jul 11, 10:59 UTCJul 12, 03:30 UTC16h 32m
2026-07-10 JBU168 - Jul 10, 19:20 UTCJul 10, 20:15 UTC55m
2026-07-10 JBU169 - Jul 10, 12:05 UTCJul 10, 12:45 UTC40m
2026-07-09 JBU2662 - Jul 9, 22:15 UTCJul 10, 02:40 UTC4h 25m
2026-07-09 JBU2661 - Jul 9, 16:10 UTCJul 9, 20:30 UTC4h 20m
2026-07-08 JBU309 JFK → SDQ Jul 8, 23:23 UTCJul 9, 22:15 UTC22h 53m
2026-07-08 JBU309 - Jul 8, 23:25 UTCJul 9, 00:00 UTC35m
2026-07-08 JBU780 JFK → JFK Jul 8, 12:15 UTCJul 8, 20:35 UTC8h 20m
2026-07-07 JBU465 JFK → GEO Jul 7, 16:05 UTCJul 8, 14:15 UTC22h 11m
2026-07-07 JBU610 SDQ → JFK Jul 7, 10:30 UTCJul 8, 03:55 UTC17h 26m
2026-07-06 JBU309 JFK → SDQ Jul 6, 22:56 UTCJul 7, 20:45 UTC21h 50m
2026-07-06 JBU380 MBJ → JFK Jul 6, 15:56 UTCJul 7, 14:05 UTC22h 10m
2026-07-06 JBU380 JFK → JFK Jul 6, 10:45 UTCJul 6, 19:15 UTC8h 30m
2026-07-05 JBU1936 STI → JFK Jul 5, 05:44 UTCJul 5, 23:30 UTC17h 46m
2026-07-04 JBU788 - Jul 4, 16:00 UTCJul 4, 19:25 UTC3h 25m
2026-07-04 JBU788 SXM → JFK Jul 4, 15:39 UTCJul 5, 13:15 UTC21h 36m
2026-07-03 JBU2018 POS → JFK Jul 3, 19:06 UTCJul 4, 16:15 UTC21h 10m
2026-07-03 JBU117 JFK → POS Jul 3, 12:54 UTCJul 4, 11:30 UTC22h 36m
2026-07-03 JBU117 - Jul 3, 12:55 UTCJul 3, 17:05 UTC4h 10m
2026-07-02 JBU1966 JFK → JFK Jul 2, 21:25 UTCJul 3, 09:20 UTC11h 55m
2026-07-02 JBU1770 GYE → JFK Jul 2, 12:09 UTCJul 3, 09:25 UTC21h 16m
2026-07-02 JBU1769 JFK → GYE Jul 2, 03:38 UTCJul 3, 02:10 UTC22h 32m
2026-07-01 JBU1533 JFK → CTG Jul 1, 13:45 UTCJul 1, 16:15 UTC2h 30m
2026-07-01 JBU1533 JFK → CTG Jul 1, 13:43 UTCJul 2, 07:30 UTC17h 47m
2026-06-30 JBU2661 JFK → JFK Jun 30, 15:40 UTCJul 1, 01:40 UTC10h 0m
2026-06-29 JBU1188 - Jun 29, 19:54 UTCJun 29, 23:39 UTC3h 45m
2026-06-29 JBU1188 SXM → JFK Jun 29, 19:36 UTCJun 30, 16:10 UTC20h 35m
2026-06-29 JBU887 - Jun 29, 13:59 UTCJun 29, 17:05 UTC3h 5m
2026-06-28 JBU637 - Jun 28, 23:14 UTCJun 29, 10:24 UTC11h 10m
2026-06-28 JBU1179 - Jun 28, 11:09 UTCJun 28, 19:40 UTC8h 30m
2026-06-27 JBU1088 - Jun 27, 23:34 UTCJun 28, 03:05 UTC3h 30m
2026-06-27 JBU1087 - Jun 27, 18:20 UTCJun 27, 21:40 UTC3h 20m
2026-06-27 JBU384 MCO → JFK Jun 27, 14:09 UTCJun 27, 16:14 UTC2h 5m
2026-06-27 JBU883 JFK → MCO Jun 27, 09:29 UTCJun 27, 11:35 UTC2h 5m
2026-06-26 JBU130 RSW → JFK Jun 26, 10:15 UTCJun 26, 12:34 UTC2h 20m
2026-06-26 JBU130 RSW → JFK Jun 26, 10:11 UTCJun 27, 04:19 UTC18h 9m
2026-06-26 JBU2129 - Jun 26, 02:00 UTCJun 26, 04:24 UTC2h 25m
2026-06-25 JBU1681 JFK → JFK Jun 25, 12:19 UTCJun 25, 22:10 UTC9h 50m
2026-06-24 JBU18 JFK → JFK Jun 24, 18:05 UTCJun 25, 04:35 UTC10h 30m
2026-06-23 JBU1188 JFK → JFK Jun 23, 14:04 UTCJun 23, 23:00 UTC8h 55m
2026-06-22 JBU1965 - Jun 22, 22:10 UTCJun 23, 01:25 UTC3h 15m
2026-06-22 JBU1965 JFK → GEO Jun 22, 22:09 UTCJun 23, 19:44 UTC21h 36m

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?
Yes. Mode-S A1A0A1 is currently airborne.
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, JBU1188, JBU505.