Apparatus

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sensors Mode-S transponder

A7A1E8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N591JB · AIRBUS A-320 · operated by JETBLUE AIRWAYS CORPORATION

Hex
A7A1E8
Octal
51720750
Decimal
10,985,960
Country
US
Tail
N591JB
Type
A320
Broadcasting now · callsign JBU197 · 38,050 ft
Flights observed
312
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Current position

A7A1E8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A7A1E8 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
JBU1962 - 5 2026-06-28
JBU868 JetBlue Airways 4 2026-04-20
JBU553 JetBlue Airways 4 2026-07-21
JBU304 JetBlue Airways 4 2026-07-25
JBU1903 JetBlue Airways 4 2026-05-07
JBU98 - 3 2026-04-14
JBU969 - 3 2026-07-10
JBU961 JetBlue Airways 3 2026-04-22
JBU676 - 3 2026-07-08
JBU503 JetBlue Airways 3 2026-06-08
JBU38 - 3 2026-07-13
JBU2661 - 3 2026-07-20
JBU257 - 3 2026-07-06
JBU2476 JetBlue Airways 3 2026-05-18
JBU2390 JetBlue Airways 3 2026-04-16
JBU1868 JetBlue Airways 3 2026-05-17
JBU1798 - 3 2026-07-14
JBU1761 - 3 2026-06-27
JBU1367 JetBlue Airways 3 2026-05-03
JBU1242 JetBlue Airways 3 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JBU517 BOS → JFK Jul 26, 13:19 UTCJul 26, 22:00 UTC8h 42m
2026-07-26 JBU518 JFK → BOS Jul 26, 10:24 UTCJul 26, 22:00 UTC11h 37m
2026-07-25 JBU757 JFK → AUA Jul 25, 12:33 UTCJul 26, 11:55 UTC23h 23m
2026-07-25 JBU304 SJU → JFK Jul 25, 02:54 UTCJul 26, 02:00 UTC23h 6m
2026-07-24 JBU1005 JFK → PDX Jul 24, 20:40 UTCJul 24, 21:20 UTC40m
2026-07-24 JBU1005 JFK → PDX Jul 24, 20:35 UTCJul 25, 19:00 UTC22h 25m
2026-07-24 JBU959 BDL → FLL Jul 24, 16:15 UTCJul 24, 18:50 UTC2h 35m
2026-07-24 JBU1476 SJU → BDL Jul 24, 13:45 UTCJul 24, 14:40 UTC55m
2026-07-24 JBU1476 SJU → BDL Jul 24, 11:15 UTCJul 24, 11:25 UTC10m
2026-07-23 JBU1553 - Jul 23, 16:25 UTCJul 23, 16:40 UTC15m
2026-07-23 JBU1553 - Jul 23, 14:30 UTCJul 23, 14:55 UTC25m
2026-07-23 JBU682 RSW → DCA Jul 23, 10:50 UTCJul 23, 12:40 UTC1h 50m
2026-07-23 JBU2581 FLL → BNA Jul 23, 02:10 UTCJul 23, 03:55 UTC1h 45m
2026-07-22 JBU1676 KIN → FLL Jul 22, 14:25 UTCJul 22, 18:55 UTC4h 30m
2026-07-22 JBU2752 SJU → TPA Jul 22, 01:35 UTCJul 22, 01:55 UTC20m
2026-07-21 JBU553 FLL → SJU Jul 21, 23:55 UTCJul 22, 00:05 UTC10m
2026-07-21 JBU553 FLL → SJU Jul 21, 21:55 UTCJul 21, 22:25 UTC30m
2026-07-21 JBU553 FLL → SJU Jul 21, 21:53 UTCJul 22, 18:55 UTC21h 2m
2026-07-21 JBU1454 PBI → JFK Jul 21, 20:00 UTCJul 21, 20:35 UTC35m
2026-07-21 JBU1454 PBI → JFK Jul 21, 18:15 UTCJul 21, 18:30 UTC15m
2026-07-21 JBU1751 - Jul 21, 16:40 UTCJul 21, 16:55 UTC15m
2026-07-20 JBU2662 BGI → JFK Jul 20, 21:30 UTCJul 21, 01:55 UTC4h 24m
2026-07-20 JBU2662 BGI → JFK Jul 20, 21:26 UTCJul 21, 20:00 UTC22h 34m
2026-07-20 JBU2661 - Jul 20, 19:10 UTCJul 20, 19:25 UTC15m
2026-07-20 JBU2661 - Jul 20, 15:45 UTCJul 20, 18:30 UTC2h 45m
2026-07-20 JBU2661 - Jul 20, 15:15 UTCJul 20, 15:40 UTC25m
2026-07-19 JBU1112 CUR → JFK Jul 19, 19:22 UTCJul 20, 15:55 UTC20h 34m
2026-07-19 JBU1112 CUR → JFK Jul 19, 13:30 UTCJul 19, 23:35 UTC10h 5m
2026-07-18 JBU740 ANU → JFK Jul 18, 20:00 UTCJul 19, 14:25 UTC18h 26m
2026-07-18 JBU740 ANU → JFK Jul 18, 20:00 UTCJul 19, 14:25 UTC18h 26m
2026-07-18 JBU743 JFK → ANU Jul 18, 14:50 UTCJul 18, 18:10 UTC3h 20m
2026-07-18 JBU1185 ROC → JFK Jul 18, 10:40 UTCJul 18, 11:40 UTC1h 0m
2026-07-17 JBU2957 JFK → AUA Jul 17, 10:08 UTCJul 18, 10:00 UTC23h 53m
2026-07-16 JBU1802 FLL → JFK Jul 16, 22:44 UTCJul 17, 20:10 UTC21h 26m
2026-07-16 JBU749 - Jul 16, 16:19 UTCJul 16, 17:49 UTC1h 30m
2026-07-16 JBU749 FLL → CLT Jul 16, 16:16 UTCJul 17, 16:00 UTC23h 44m
2026-07-16 JBU2289 - Jul 16, 12:00 UTCJul 16, 14:25 UTC2h 25m
2026-07-16 JBU1590 - Jul 16, 02:10 UTCJul 16, 04:25 UTC2h 15m
2026-07-15 JBU471 LGA → FLL Jul 15, 22:15 UTCJul 16, 00:40 UTC2h 25m
2026-07-15 JBU698 - Jul 15, 16:40 UTCJul 15, 18:50 UTC2h 10m
2026-07-15 JBU85 BUF → MCO Jul 15, 12:45 UTCJul 15, 14:55 UTC2h 10m
2026-07-15 JBU1602 JFK → BUF Jul 15, 10:35 UTCJul 15, 11:35 UTC1h 0m
2026-07-15 JBU504 - Jul 15, 04:30 UTCJul 15, 05:25 UTC55m
2026-07-15 JBU504 - Jul 15, 02:05 UTCJul 15, 02:20 UTC15m
2026-07-14 JBU1798 - Jul 14, 02:35 UTCJul 14, 04:10 UTC1h 35m
2026-07-14 JBU1798 FLL → ATL Jul 14, 02:31 UTCJul 14, 15:40 UTC13h 10m
2026-07-13 JBU38 SJO → FLL Jul 13, 21:45 UTCJul 14, 00:10 UTC2h 25m
2026-07-13 JBU2919 MCO → ALB Jul 13, 00:35 UTCJul 14, 00:00 UTC23h 26m
2026-07-12 JBU595 - Jul 12, 20:25 UTCJul 12, 22:45 UTC2h 20m
2026-07-12 JBU595 HPN → MCO Jul 12, 20:23 UTCJul 13, 20:00 UTC23h 38m

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 N591JB page for operator, model, and routing details .

Mode-S A7A1E8 frequently asked

What is Mode-S code A7A1E8?
A7A1E8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N591JB.
Where is Mode-S A7A1E8 registered?
Mode-S code A7A1E8 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 A7A1E8 broadcasting right now?
Yes. Mode-S A7A1E8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7A1E8, octal 51720750, decimal 10,985,960.
What flights does A7A1E8 operate?
Mode-S A7A1E8 has broadcast 20 distinct callsigns, including JBU1962, JBU868, JBU553, JBU304, JBU1903.