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sensors Mode-S transponder

A85CAD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N638NN · BOMBARDIER Regional Jet CRJ-900 · operated by AMERICAN AIRLINES INC

Hex
A85CAD
Octal
52056255
Decimal
11,033,773
Country
US
Tail
N638NN
Type
CRJ9
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
742
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S A85CAD.

Country allocation

The ICAO 24-bit address A85CAD 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
JIA5266 PSA Airlines 11 2026-07-25
JIA5332 - 10 2026-07-25
JIA5157 PSA Airlines 9 2026-05-29
JIA5296 - 8 2026-07-04
JIA5591 - 7 2026-06-18
JIA5108 PSA Airlines 7 2026-05-20
JIA5091 - 7 2026-06-27
JIA5530 PSA Airlines 6 2026-07-22
JIA5377 - 6 2026-06-23
JIA5291 PSA Airlines 6 2026-06-18
JIA5197 PSA Airlines 6 2026-05-17
JIA5166 PSA Airlines 6 2026-07-26
JIA5630 PSA Airlines 5 2026-05-18
JIA5611 PSA Airlines 5 2026-05-18
JIA5590 PSA Airlines 5 2026-05-20
JIA5587 PSA Airlines 5 2026-06-06
JIA5543 PSA Airlines 5 2026-06-03
JIA5494 PSA Airlines 5 2026-06-03
JIA5442 - 5 2026-06-24
JIA5397 PSA Airlines 5 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JIA5559 BUF → PHL Jul 26, 21:00 UTCJul 26, 21:15 UTC15m
2026-07-26 JIA5559 BUF → PHL Jul 26, 17:35 UTCJul 26, 20:00 UTC2h 25m
2026-07-26 JIA5166 JAX → PHL Jul 26, 15:25 UTCJul 26, 16:15 UTC50m
2026-07-26 JIA5166 JAX → PHL Jul 26, 15:24 UTCJul 26, 16:22 UTC58m
2026-07-26 JIA5166 JAX → PHL Jul 26, 13:25 UTCJul 26, 14:10 UTC45m
2026-07-26 JIA5170 PHL → MHT Jul 26, 10:30 UTCJul 26, 11:30 UTC1h 0m
2026-07-26 JIA5170 PHL → MHT Jul 26, 10:26 UTCJul 26, 11:31 UTC1h 5m
2026-07-26 JIA5169 PHL → MSN Jul 26, 02:50 UTCJul 26, 04:05 UTC1h 15m
2026-07-25 JIA5266 PHL → AVL Jul 25, 23:50 UTCJul 26, 01:40 UTC1h 50m
2026-07-25 JIA5266 PHL → AVL Jul 25, 23:46 UTCJul 26, 01:40 UTC1h 54m
2026-07-25 JIA5266 PHL → AVL Jul 25, 19:55 UTCJul 25, 21:50 UTC1h 55m
2026-07-25 JIA5332 - Jul 25, 16:45 UTCJul 25, 18:35 UTC1h 50m
2026-07-25 JIA5332 PHL → STL Jul 25, 13:50 UTCJul 25, 15:50 UTC2h 0m
2026-07-25 JIA5434 DFW → AGS Jul 25, 10:40 UTCJul 25, 11:30 UTC50m
2026-07-25 JIA5434 DFW → AGS Jul 25, 10:35 UTCJul 25, 11:28 UTC53m
2026-07-25 JIA5366 PHL → PVD Jul 25, 02:50 UTCJul 25, 03:45 UTC55m
2026-07-24 JIA5266 PHL → AVL Jul 24, 22:50 UTCJul 25, 00:40 UTC1h 50m
2026-07-24 JIA5266 PHL → AVL Jul 24, 20:00 UTCJul 24, 22:00 UTC2h 0m
2026-07-24 JIA5239 SDF → DCA Jul 24, 17:25 UTCJul 24, 18:10 UTC45m
2026-07-24 JIA5485 CHS → PHL Jul 24, 15:38 UTCJul 24, 16:31 UTC53m
2026-07-24 JIA5485 CHS → PHL Jul 24, 15:40 UTCJul 24, 16:30 UTC50m
2026-07-24 JIA5074 DAY → CLT Jul 24, 11:20 UTCJul 24, 13:35 UTC2h 15m
2026-07-23 JIA5545 SYR → DCA Jul 23, 23:20 UTCJul 24, 01:50 UTC2h 30m
2026-07-23 JIA5545 SYR → DCA Jul 23, 23:16 UTCJul 24, 01:49 UTC2h 33m
2026-07-23 JIA5644 DCA → PVD Jul 23, 20:35 UTCJul 23, 21:15 UTC40m
2026-07-23 JIA5644 DCA → PVD Jul 23, 20:33 UTCJul 23, 21:28 UTC55m
2026-07-23 JIA5644 DCA → PVD Jul 23, 18:20 UTCJul 23, 19:20 UTC1h 0m
2026-07-23 JIA5166 JAX → PHL Jul 23, 15:25 UTCJul 23, 16:15 UTC50m
2026-07-23 JIA5166 JAX → PHL Jul 23, 15:23 UTCJul 23, 16:14 UTC51m
2026-07-23 JIA5166 JAX → PHL Jul 23, 13:50 UTCJul 23, 14:30 UTC40m
2026-07-23 JIA5577 PHL → BUF Jul 23, 11:05 UTCJul 23, 12:20 UTC1h 15m
2026-07-23 JIA5553 CLT → ABE Jul 23, 01:55 UTCJul 23, 03:20 UTC1h 25m
2026-07-22 JIA5394 CMH → PHL Jul 22, 23:35 UTCJul 23, 01:00 UTC1h 25m
2026-07-22 JIA5394 CMH → PHL Jul 22, 23:33 UTCJul 23, 00:58 UTC1h 25m
2026-07-22 JIA5394 CMH → PHL Jul 22, 21:15 UTCJul 22, 22:50 UTC1h 35m
2026-07-22 JIA5530 DCA → CID Jul 22, 17:15 UTCJul 22, 18:30 UTC1h 15m
2026-07-22 JIA5530 DCA → CID Jul 22, 17:14 UTCJul 22, 18:23 UTC1h 9m
2026-07-22 JIA5530 DCA → CID Jul 22, 15:00 UTCJul 22, 16:15 UTC1h 15m
2026-07-22 JIA5570 - Jul 22, 11:55 UTCJul 22, 13:30 UTC1h 35m
2026-07-22 JIA5232 - Jul 22, 03:40 UTCJul 22, 04:20 UTC40m
2026-07-22 JIA5232 CLT → SAV Jul 22, 03:38 UTCJul 22, 04:14 UTC36m
2026-07-22 JIA5439 LEX → PHL Jul 22, 00:00 UTCJul 22, 01:10 UTC1h 10m
2026-07-21 JIA5439 LEX → PHL Jul 21, 21:30 UTCJul 21, 22:30 UTC1h 0m
2026-07-21 JIA5383 HSV → DFW Jul 21, 19:05 UTCJul 21, 19:50 UTC45m
2026-07-21 JIA5383 HSV → DFW Jul 21, 17:25 UTCJul 21, 18:00 UTC35m
2026-07-21 JIA5262 SHV → CLT Jul 21, 15:15 UTCJul 21, 16:00 UTC45m
2026-07-21 JIA5262 SHV → CLT Jul 21, 15:10 UTCJul 21, 15:59 UTC49m
2026-07-21 JIA5262 SHV → CLT Jul 21, 12:05 UTCJul 21, 12:55 UTC50m
2026-07-21 JIA5255 PHL → ILM Jul 21, 09:15 UTCJul 21, 10:05 UTC50m
2026-07-21 JIA5161 PHL → DAY Jul 21, 01:50 UTCJul 21, 02:45 UTC55m

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 N638NN page for operator, model, and routing details .

Mode-S A85CAD frequently asked

What is Mode-S code A85CAD?
A85CAD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N638NN.
Where is Mode-S A85CAD registered?
Mode-S code A85CAD 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 A85CAD broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A85CAD, octal 52056255, decimal 11,033,773.
What flights does A85CAD operate?
Mode-S A85CAD has broadcast 20 distinct callsigns, including JIA5266, JIA5332, JIA5157, JIA5296, JIA5591.