Apparatus

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sensors Mode-S transponder

A71E5C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N558NN · BOMBARDIER Regional Jet CRJ-900 · operated by AMERICAN AIRLINES INC

Hex
A71E5C
Octal
51617134
Decimal
10,952,284
Country
US
Tail
N558NN
Type
CRJ9
Broadcasting now · callsign JIA5483 · 25,050 ft
Flights observed
632
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

A71E5C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A71E5C 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
JIA5640 - 10 2026-07-13
JIA5290 - 9 2026-06-24
JIA5196 - 9 2026-07-11
JIA5049 - 8 2026-07-01
JIA5590 - 7 2026-07-04
JIA5207 PSA Airlines 7 2026-07-02
JIA5075 PSA Airlines 7 2026-05-23
JIA5581 PSA Airlines 6 2026-04-29
JIA5405 PSA Airlines 6 2026-05-26
JIA5364 - 6 2026-06-20
JIA5291 PSA Airlines 6 2026-05-06
JIA5234 - 6 2026-07-12
JIA5173 - 6 2026-07-03
JIA5614 - 5 2026-06-15
JIA5604 PSA Airlines 5 2026-05-28
JIA5534 - 5 2026-07-05
JIA5517 PSA Airlines 5 2026-05-07
JIA5451 PSA Airlines 5 2026-05-27
JIA5426 PSA Airlines 5 2026-05-20
JIA5419 - 5 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JIA5584 - Jul 14, 00:50 UTCJul 14, 01:40 UTC50m
2026-07-13 JIA5584 PHL → BTV Jul 13, 23:05 UTCJul 14, 00:05 UTC1h 0m
2026-07-13 JIA5209 - Jul 13, 20:20 UTCJul 13, 21:45 UTC1h 25m
2026-07-13 JIA5209 IND → PHL Jul 13, 20:18 UTCJul 13, 21:41 UTC1h 23m
2026-07-13 JIA5209 PHL → IND Jul 13, 18:05 UTCJul 13, 19:25 UTC1h 20m
2026-07-13 JIA5640 - Jul 13, 14:55 UTCJul 13, 16:15 UTC1h 20m
2026-07-13 JIA5640 - Jul 13, 12:50 UTCJul 13, 13:50 UTC1h 0m
2026-07-13 JIA5640 - Jul 13, 12:05 UTCJul 13, 12:10 UTC5m
2026-07-13 JIA5438 - Jul 13, 09:50 UTCJul 13, 11:00 UTC1h 10m
2026-07-13 JIA5438 CVG → PHL Jul 13, 09:50 UTCJul 13, 11:01 UTC1h 11m
2026-07-13 JIA5583 - Jul 13, 00:10 UTCJul 13, 01:25 UTC1h 15m
2026-07-12 JIA5583 - Jul 12, 23:45 UTCJul 12, 23:50 UTC5m
2026-07-12 JIA5249 - Jul 12, 21:35 UTCJul 12, 22:55 UTC1h 20m
2026-07-12 JIA5249 PHL → LEX Jul 12, 19:01 UTCJul 12, 20:40 UTC1h 40m
2026-07-12 JIA5430 - Jul 12, 16:30 UTCJul 12, 17:50 UTC1h 20m
2026-07-12 JIA5433 - Jul 12, 13:40 UTCJul 12, 15:05 UTC1h 25m
2026-07-12 JIA5234 - Jul 12, 11:01 UTCJul 12, 12:05 UTC1h 5m
2026-07-12 JIA5174 - Jul 12, 01:05 UTCJul 12, 02:05 UTC1h 0m
2026-07-11 JIA5628 - Jul 11, 20:35 UTCJul 11, 22:15 UTC1h 40m
2026-07-11 JIA5628 - Jul 11, 17:45 UTCJul 11, 19:25 UTC1h 40m
2026-07-11 JIA5390 - Jul 11, 15:15 UTCJul 11, 15:50 UTC35m
2026-07-11 JIA5390 - Jul 11, 13:25 UTCJul 11, 14:00 UTC35m
2026-07-11 JIA5176 - Jul 11, 10:45 UTCJul 11, 11:30 UTC45m
2026-07-11 JIA5528 - Jul 11, 03:05 UTCJul 11, 03:45 UTC40m
2026-07-11 JIA5196 - Jul 11, 00:25 UTCJul 11, 01:05 UTC40m
2026-07-10 JIA5196 - Jul 10, 22:00 UTCJul 10, 22:40 UTC40m
2026-07-10 JIA5171 - Jul 10, 17:15 UTCJul 10, 18:05 UTC50m
2026-07-10 JIA5171 - Jul 10, 15:25 UTCJul 10, 16:15 UTC50m
2026-07-10 JIA5612 - Jul 10, 12:00 UTCJul 10, 13:40 UTC1h 40m
2026-07-10 JIA5612 BTR → CLT Jul 10, 11:57 UTCJul 10, 13:33 UTC1h 36m
2026-07-10 JIA5539 - Jul 10, 00:30 UTCJul 10, 02:00 UTC1h 30m
2026-07-09 JIA5627 - Jul 9, 21:50 UTCJul 9, 23:20 UTC1h 30m
2026-07-09 JIA5627 - Jul 9, 19:25 UTCJul 9, 20:50 UTC1h 25m
2026-07-09 JIA5446 - Jul 9, 16:20 UTCJul 9, 18:00 UTC1h 40m
2026-07-09 JIA5446 XNA → CLT Jul 9, 16:19 UTCJul 9, 17:58 UTC1h 39m
2026-07-09 JIA5446 - Jul 9, 13:25 UTCJul 9, 15:10 UTC1h 45m
2026-07-09 JIA5495 - Jul 9, 10:25 UTCJul 9, 11:35 UTC1h 10m
2026-07-08 JIA5099 - Jul 8, 23:25 UTCJul 9, 00:20 UTC55m
2026-07-08 JIA5571 - Jul 8, 19:30 UTCJul 8, 21:00 UTC1h 30m
2026-07-08 JIA5571 TVC → CLT Jul 8, 19:24 UTCJul 8, 20:57 UTC1h 33m
2026-07-08 JIA5480 - Jul 8, 15:45 UTCJul 8, 17:05 UTC1h 20m
2026-07-06 JIA5640 - Jul 6, 15:10 UTCJul 6, 16:25 UTC1h 15m
2026-07-06 JIA5640 CMH → PHL Jul 6, 15:05 UTCJul 6, 16:12 UTC1h 7m
2026-07-06 JIA5640 - Jul 6, 12:40 UTCJul 6, 13:45 UTC1h 5m
2026-07-06 JIA5640 - Jul 6, 12:25 UTCJul 6, 12:35 UTC10m
2026-07-06 JIA5438 - Jul 6, 09:55 UTCJul 6, 11:05 UTC1h 10m
2026-07-05 JIA5534 PHL → CVG Jul 5, 22:30 UTCJul 5, 23:55 UTC1h 25m
2026-07-05 JIA5534 PHL → CVG Jul 5, 22:26 UTCJul 5, 23:53 UTC1h 27m
2026-07-05 JIA5165 - Jul 5, 18:05 UTCJul 5, 19:00 UTC55m
2026-07-05 JIA5165 DSM → PHL Jul 5, 18:04 UTCJul 5, 20:12 UTC2h 8m

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 N558NN page for operator, model, and routing details .

Mode-S A71E5C frequently asked

What is Mode-S code A71E5C?
A71E5C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N558NN.
Where is Mode-S A71E5C registered?
Mode-S code A71E5C 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 A71E5C broadcasting right now?
Yes. Mode-S A71E5C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A71E5C, octal 51617134, decimal 10,952,284.
What flights does A71E5C operate?
Mode-S A71E5C has broadcast 20 distinct callsigns, including JIA5640, JIA5290, JIA5196, JIA5049, JIA5590.