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sensors Mode-S transponder

A84DD1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N634NN · operated by AMERICAN AIRLINES INC

Hex
A84DD1
Octal
52046721
Decimal
11,029,969
Country
US
Tail
N634NN
Type
CRJ9
Broadcasting now · callsign JIA5626 · 31,000 ft
Flights observed
625
Distinct callsigns
20
Country
US
Last broadcast
7h ago

Current position

A84DD1 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A84DD1 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
JIA5579 - 10 2026-06-19
JIA5666 PSA Airlines 9 2026-06-02
JIA5628 - 8 2026-06-26
JIA5536 PSA Airlines 8 2026-05-11
JIA5417 PSA Airlines 8 2026-05-16
JIA5640 - 7 2026-07-10
JIA5586 PSA Airlines 7 2026-05-19
JIA5039 - 7 2026-07-03
JIA5592 PSA Airlines 6 2026-06-12
JIA5514 PSA Airlines 6 2026-06-10
JIA5397 - 6 2026-07-03
JIA5336 PSA Airlines 6 2026-05-18
JIA5189 - 6 2026-07-10
JIA5581 - 5 2026-07-11
JIA5490 PSA Airlines 5 2026-05-31
JIA5454 - 5 2026-07-14
JIA5449 PSA Airlines 5 2026-05-11
JIA5357 - 5 2026-06-30
JIA5350 PSA Airlines 5 2026-06-02
JIA5294 PSA Airlines 5 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JIA5454 PHL → MSY Jul 14, 01:55 UTCJul 14, 04:20 UTC2h 25m
2026-07-13 JIA5249 - Jul 13, 22:25 UTCJul 13, 23:50 UTC1h 25m
2026-07-13 JIA5249 PHL → LEX Jul 13, 20:05 UTCJul 13, 21:25 UTC1h 20m
2026-07-13 JIA5239 - Jul 13, 18:15 UTCJul 13, 19:05 UTC50m
2026-07-13 JIA5485 PHL → PIT Jul 13, 16:10 UTCJul 13, 16:55 UTC45m
2026-07-13 JIA5485 PHL → PIT Jul 13, 16:07 UTCJul 13, 16:54 UTC47m
2026-07-13 JIA5626 MSY → PHL Jul 13, 12:05 UTCJul 13, 14:25 UTC2h 20m
2026-07-13 JIA5454 - Jul 13, 01:25 UTCJul 13, 03:50 UTC2h 25m
2026-07-13 JIA5454 PHL → MSY Jul 13, 01:24 UTCJul 13, 03:46 UTC2h 22m
2026-07-13 JIA5454 - Jul 13, 01:01 UTCJul 13, 01:05 UTC5m
2026-07-12 JIA5129 - Jul 12, 21:35 UTCJul 12, 22:40 UTC1h 5m
2026-07-12 JIA5129 PHL → CLE Jul 12, 19:35 UTCJul 12, 20:35 UTC1h 0m
2026-07-12 JIA5474 - Jul 12, 17:55 UTCJul 12, 18:25 UTC30m
2026-07-12 JIA5615 BHM → PHL Jul 12, 12:25 UTCJul 12, 13:25 UTC1h 0m
2026-07-12 JIA5546 - Jul 12, 00:15 UTCJul 12, 01:10 UTC55m
2026-07-11 JIA5423 - Jul 11, 20:25 UTCJul 11, 22:35 UTC2h 10m
2026-07-11 JIA5423 DCA → TUL Jul 11, 17:00 UTCJul 11, 19:25 UTC2h 25m
2026-07-11 JIA5581 - Jul 11, 15:20 UTCJul 11, 16:00 UTC40m
2026-07-11 JIA5581 RDU → DCA Jul 11, 15:16 UTCJul 11, 15:55 UTC39m
2026-07-11 JIA5581 DCA → RDU Jul 11, 13:30 UTCJul 11, 14:15 UTC45m
2026-07-11 JIA5445 - Jul 11, 10:35 UTCJul 11, 11:35 UTC1h 0m
2026-07-10 JIA5534 PHL → CVG Jul 10, 22:10 UTCJul 10, 23:39 UTC1h 29m
2026-07-10 JIA5534 PHL → CVG Jul 10, 22:10 UTCJul 10, 23:40 UTC1h 30m
2026-07-10 JIA5189 - Jul 10, 19:50 UTCJul 10, 20:45 UTC55m
2026-07-10 JIA5189 PVD → PHL Jul 10, 19:46 UTCJul 10, 20:43 UTC57m
2026-07-10 JIA5189 - Jul 10, 18:05 UTCJul 10, 18:45 UTC40m
2026-07-10 JIA5189 - Jul 10, 17:50 UTCJul 10, 18:00 UTC10m
2026-07-10 JIA5640 - Jul 10, 14:50 UTCJul 10, 16:00 UTC1h 10m
2026-07-10 JIA5640 PHL → CMH Jul 10, 12:40 UTCJul 10, 13:45 UTC1h 5m
2026-07-10 JIA5487 - Jul 10, 09:55 UTCJul 10, 10:40 UTC45m
2026-07-10 JIA9687 - Jul 10, 03:05 UTCJul 10, 04:35 UTC1h 30m
2026-07-09 JIA5266 - Jul 9, 23:35 UTCJul 10, 02:15 UTC2h 40m
2026-07-09 JIA5266 - Jul 9, 23:10 UTCJul 9, 23:15 UTC5m
2026-07-09 JIA5266 - Jul 9, 19:55 UTCJul 9, 20:00 UTC5m
2026-07-09 JIA5474 DCA → PHL Jul 9, 18:20 UTCJul 9, 19:00 UTC40m
2026-07-09 JIA5659 - Jul 9, 15:55 UTCJul 9, 17:00 UTC1h 5m
2026-07-09 JIA5659 - Jul 9, 13:40 UTCJul 9, 14:55 UTC1h 15m
2026-07-09 JIA5051 - Jul 9, 10:10 UTCJul 9, 11:00 UTC50m
2026-07-09 JIA5197 - Jul 9, 02:35 UTCJul 9, 03:25 UTC50m
2026-07-08 JIA5208 - Jul 8, 23:45 UTCJul 9, 00:50 UTC1h 5m
2026-07-08 JIA5208 - Jul 8, 21:25 UTCJul 8, 22:20 UTC55m
2026-07-08 JIA5213 - Jul 8, 18:45 UTCJul 8, 20:10 UTC1h 25m
2026-07-08 JIA5213 DCA → HSV Jul 8, 15:50 UTCJul 8, 17:15 UTC1h 25m
2026-07-08 JIA5235 - Jul 8, 13:40 UTCJul 8, 14:30 UTC50m
2026-07-08 JIA5235 - Jul 8, 11:50 UTCJul 8, 12:35 UTC45m
2026-07-08 JIA5034 - Jul 8, 09:05 UTCJul 8, 10:00 UTC55m
2026-07-08 JIA9968 DCA → PVD Jul 8, 00:40 UTCJul 8, 03:35 UTC2h 55m
2026-07-07 JIA5670 BTV → DCA Jul 7, 21:30 UTCJul 7, 23:50 UTC2h 20m
2026-07-07 JIA5089 - Jul 7, 14:05 UTCJul 7, 15:00 UTC55m
2026-07-07 JIA5089 DCA → CMH Jul 7, 11:40 UTCJul 7, 12:35 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 N634NN page for operator, model, and routing details .

Mode-S A84DD1 frequently asked

What is Mode-S code A84DD1?
A84DD1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N634NN.
Where is Mode-S A84DD1 registered?
Mode-S code A84DD1 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 A84DD1 broadcasting right now?
Yes. Mode-S A84DD1 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A84DD1, octal 52046721, decimal 11,029,969.
What flights does A84DD1 operate?
Mode-S A84DD1 has broadcast 20 distinct callsigns, including JIA5579, JIA5666, JIA5628, JIA5536, JIA5417.