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sensors Mode-S transponder

A789B4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N585NN · BOMBARDIER Regional Jet CRJ-900 · operated by AMERICAN AIRLINES INC

Hex
A789B4
Octal
51704664
Decimal
10,979,764
Country
US
Tail
N585NN
Type
CRJ9
Broadcasting now · callsign JIA5205 · 32,975 ft
Flights observed
585
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

A789B4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A789B4 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
JIA5243 - 9 2026-07-04
JIA5655 - 8 2026-07-13
JIA5103 PSA Airlines 8 2026-06-20
JIA5541 PSA Airlines 7 2026-06-03
JIA5026 - 7 2026-06-20
JIA5609 - 6 2026-06-28
JIA5408 - 6 2026-07-14
JIA5355 - 6 2026-06-24
JIA5349 - 6 2026-07-10
JIA5156 - 6 2026-06-24
JIA5672 PSA Airlines 5 2026-05-27
JIA5650 PSA Airlines 5 2026-05-14
JIA5612 - 5 2026-06-30
JIA5444 PSA Airlines 5 2026-06-07
JIA5377 - 5 2026-07-06
JIA5306 PSA Airlines 5 2026-05-04
JIA5244 PSA Airlines 5 2026-05-25
JIA5232 PSA Airlines 5 2026-05-14
JIA5195 - 5 2026-07-14
JIA5160 PSA Airlines 5 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JIA5396 - Jul 14, 17:35 UTCJul 14, 19:55 UTC2h 20m
2026-07-14 JIA5120 - Jul 14, 14:15 UTCJul 14, 16:20 UTC2h 5m
2026-07-14 JIA5120 DFW → CHS Jul 14, 14:11 UTCJul 14, 16:20 UTC2h 9m
2026-07-14 JIA5195 - Jul 14, 10:15 UTCJul 14, 11:35 UTC1h 20m
2026-07-14 JIA5186 - Jul 14, 05:30 UTCJul 14, 06:35 UTC1h 5m
2026-07-14 JIA5408 - Jul 14, 02:15 UTCJul 14, 04:00 UTC1h 45m
2026-07-13 JIA5408 - Jul 13, 23:00 UTCJul 14, 00:30 UTC1h 30m
2026-07-13 JIA5655 STL → DFW Jul 13, 19:10 UTCJul 13, 20:50 UTC1h 40m
2026-07-13 JIA5655 STL → DFW Jul 13, 19:10 UTCJul 13, 20:38 UTC1h 28m
2026-07-13 JIA5655 DFW → STL Jul 13, 17:00 UTCJul 13, 18:20 UTC1h 20m
2026-07-13 JIA5437 - Jul 13, 14:00 UTCJul 13, 15:45 UTC1h 45m
2026-07-13 JIA5429 - Jul 13, 00:25 UTCJul 13, 01:01 UTC35m
2026-07-13 JIA5429 CLT → PNS Jul 13, 00:20 UTCJul 13, 01:32 UTC1h 12m
2026-07-12 JIA5579 - Jul 12, 21:00 UTCJul 12, 22:50 UTC1h 50m
2026-07-12 JIA5579 MCI → CLT Jul 12, 20:42 UTCJul 12, 23:03 UTC2h 21m
2026-07-12 JIA5579 - Jul 12, 19:05 UTCJul 12, 20:10 UTC1h 5m
2026-07-12 JIA5579 - Jul 12, 14:25 UTCJul 12, 17:05 UTC2h 40m
2026-07-12 JIA5269 - Jul 12, 03:20 UTCJul 12, 04:25 UTC1h 5m
2026-07-12 JIA5269 MEM → CLT Jul 12, 03:15 UTCJul 12, 04:26 UTC1h 11m
2026-07-12 JIA5269 - Jul 12, 01:10 UTCJul 12, 02:25 UTC1h 15m
2026-07-11 JIA5057 - Jul 11, 22:20 UTCJul 11, 23:35 UTC1h 15m
2026-07-11 JIA5057 - Jul 11, 19:35 UTCJul 11, 20:50 UTC1h 15m
2026-07-11 JIA5020 - Jul 11, 16:15 UTCJul 11, 17:45 UTC1h 30m
2026-07-11 JIA5020 - Jul 11, 13:45 UTCJul 11, 15:10 UTC1h 25m
2026-07-11 JIA5094 - Jul 11, 00:45 UTCJul 11, 02:45 UTC2h 0m
2026-07-11 JIA5094 BTV → CLT Jul 11, 00:43 UTCJul 11, 02:45 UTC2h 2m
2026-07-10 JIA5094 - Jul 10, 21:30 UTCJul 10, 23:30 UTC2h 0m
2026-07-10 JIA5349 - Jul 10, 19:35 UTCJul 10, 19:50 UTC15m
2026-07-10 JIA5349 - Jul 10, 17:55 UTCJul 10, 19:50 UTC1h 55m
2026-07-10 JIA5349 PNS → CLT Jul 10, 17:52 UTCJul 10, 19:19 UTC1h 27m
2026-07-10 JIA5349 - Jul 10, 15:40 UTCJul 10, 16:55 UTC1h 15m
2026-07-10 JIA5679 - Jul 10, 11:25 UTCJul 10, 13:20 UTC1h 55m
2026-07-10 JIA5137 - Jul 10, 01:10 UTCJul 10, 03:00 UTC1h 50m
2026-07-10 JIA5137 CLT → YUL Jul 10, 01:08 UTCJul 10, 03:00 UTC1h 52m
2026-07-09 JIA5196 - Jul 9, 22:05 UTCJul 9, 22:50 UTC45m
2026-07-09 JIA5196 - Jul 9, 20:25 UTCJul 9, 21:00 UTC35m
2026-07-09 JIA5193 - Jul 9, 17:35 UTCJul 9, 18:55 UTC1h 20m
2026-07-09 JIA5193 PIA → CLT Jul 9, 17:32 UTCJul 9, 18:54 UTC1h 22m
2026-07-09 JIA5354 - Jul 9, 02:45 UTCJul 9, 04:15 UTC1h 30m
2026-07-09 JIA5205 - Jul 9, 00:10 UTCJul 9, 01:35 UTC1h 25m
2026-07-09 JIA5205 HSV → DFW Jul 9, 00:05 UTCJul 9, 01:32 UTC1h 27m
2026-07-08 JIA5205 - Jul 8, 21:20 UTCJul 8, 22:45 UTC1h 25m
2026-07-08 JIA5396 - Jul 8, 17:30 UTCJul 8, 19:50 UTC2h 20m
2026-07-08 JIA5396 CHS → DFW Jul 8, 17:29 UTCJul 8, 19:45 UTC2h 16m
2026-07-08 JIA5120 - Jul 8, 14:25 UTCJul 8, 16:25 UTC2h 0m
2026-07-08 JIA5565 - Jul 8, 11:10 UTCJul 8, 13:15 UTC2h 5m
2026-07-08 JIA5523 DFW → AGS Jul 8, 00:55 UTCJul 8, 02:45 UTC1h 50m
2026-07-07 JIA5109 - Jul 7, 18:15 UTCJul 7, 20:20 UTC2h 5m
2026-07-07 JIA5109 - Jul 7, 15:10 UTCJul 7, 17:20 UTC2h 10m
2026-07-07 JIA5157 - Jul 7, 11:15 UTCJul 7, 13:20 UTC2h 5m

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 N585NN page for operator, model, and routing details .

Mode-S A789B4 frequently asked

What is Mode-S code A789B4?
A789B4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N585NN.
Where is Mode-S A789B4 registered?
Mode-S code A789B4 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 A789B4 broadcasting right now?
Yes. Mode-S A789B4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A789B4, octal 51704664, decimal 10,979,764.
What flights does A789B4 operate?
Mode-S A789B4 has broadcast 20 distinct callsigns, including JIA5243, JIA5655, JIA5103, JIA5541, JIA5026.