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
No current signal · last broadcast Jul 26, 22:35 UTC
Flights observed
726
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:35 UTC

Last known position

Most recent position reported by Mode-S A71E5C.

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
JIA5614 - 8 2026-07-15
JIA5049 - 8 2026-07-01
JIA5590 - 7 2026-07-04
JIA5207 PSA Airlines 7 2026-07-02
JIA5075 PSA Airlines 7 2026-05-23
JIA5583 PSA Airlines 6 2026-07-24
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
JIA5210 - 6 2026-07-14
JIA5173 - 6 2026-07-03
JIA5647 - 5 2026-07-16
JIA5604 PSA Airlines 5 2026-05-28
JIA5584 - 5 2026-07-16
JIA5559 PSA Airlines 5 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JIA5167 MCI → PHL Jul 26, 21:20 UTCJul 26, 22:35 UTC1h 15m
2026-07-26 JIA5018 BTV → DCA Jul 26, 18:15 UTCJul 26, 19:50 UTC1h 35m
2026-07-26 JIA5018 BTV → DCA Jul 26, 18:12 UTCJul 26, 19:48 UTC1h 36m
2026-07-26 JIA5018 BTV → DCA Jul 26, 15:25 UTCJul 26, 17:10 UTC1h 45m
2026-07-26 JIA5074 DAY → CLT Jul 26, 11:05 UTCJul 26, 13:15 UTC2h 10m
2026-07-26 JIA5074 DAY → CLT Jul 26, 11:04 UTCJul 26, 13:14 UTC2h 10m
2026-07-25 JIA5545 SYR → DCA Jul 25, 22:55 UTCJul 26, 01:20 UTC2h 25m
2026-07-25 JIA5333 GSP → PHL Jul 25, 19:20 UTCJul 25, 21:20 UTC2h 0m
2026-07-25 JIA5333 GSP → PHL Jul 25, 16:05 UTCJul 25, 18:05 UTC2h 0m
2026-07-25 JIA5488 MLB → CLT Jul 25, 13:00 UTCJul 25, 15:00 UTC2h 0m
2026-07-25 JIA5488 MLB → CLT Jul 25, 12:58 UTCJul 25, 14:53 UTC1h 55m
2026-07-25 JIA5460 DCA → LAN Jul 25, 00:09 UTCJul 25, 02:33 UTC2h 24m
2026-07-25 JIA5460 DCA → LAN Jul 25, 00:10 UTCJul 25, 02:35 UTC2h 25m
2026-07-24 JIA5559 BUF → PHL Jul 24, 20:00 UTCJul 24, 21:00 UTC1h 0m
2026-07-24 JIA5559 BUF → PHL Jul 24, 19:58 UTCJul 24, 22:10 UTC2h 12m
2026-07-24 JIA5559 BUF → PHL Jul 24, 16:40 UTCJul 24, 19:10 UTC2h 30m
2026-07-24 JIA5578 CVG → PHL Jul 24, 14:25 UTCJul 24, 15:35 UTC1h 10m
2026-07-24 JIA5578 CVG → PHL Jul 24, 14:23 UTCJul 24, 15:33 UTC1h 10m
2026-07-24 JIA5583 PHL → CVG Jul 24, 01:13 UTCJul 24, 02:40 UTC1h 27m
2026-07-24 JIA5583 PHL → CVG Jul 24, 01:15 UTCJul 24, 02:45 UTC1h 30m
2026-07-23 JIA5249 MEM → PHL Jul 23, 22:10 UTCJul 23, 23:20 UTC1h 10m
2026-07-23 JIA5249 MEM → PHL Jul 23, 20:00 UTCJul 23, 21:25 UTC1h 25m
2026-07-23 JIA5430 - Jul 23, 17:25 UTCJul 23, 18:40 UTC1h 15m
2026-07-23 JIA5430 TVC → PHL Jul 23, 17:18 UTCJul 23, 18:41 UTC1h 23m
2026-07-23 JIA5433 - Jul 23, 14:35 UTCJul 23, 16:20 UTC1h 45m
2026-07-23 JIA5238 DAY → PHL Jul 23, 10:35 UTCJul 23, 11:50 UTC1h 15m
2026-07-23 JIA5238 DAY → PHL Jul 23, 10:22 UTCJul 23, 11:45 UTC1h 23m
2026-07-23 JIA5566 PHL → DSM Jul 23, 01:15 UTCJul 23, 02:20 UTC1h 5m
2026-07-22 JIA5357 DCA → BDL Jul 22, 22:05 UTCJul 22, 23:25 UTC1h 20m
2026-07-22 JIA5357 DCA → BDL Jul 22, 22:01 UTCJul 22, 23:25 UTC1h 24m
2026-07-22 JIA5287 PHL → JAX Jul 22, 19:55 UTCJul 22, 21:10 UTC1h 15m
2026-07-22 JIA5020 MHT → PHL Jul 22, 16:10 UTCJul 22, 17:30 UTC1h 20m
2026-07-22 JIA5020 MHT → PHL Jul 22, 13:25 UTCJul 22, 15:05 UTC1h 40m
2026-07-22 JIA5566 PHL → DSM Jul 22, 00:35 UTCJul 22, 12:10 UTC11h 35m
2026-07-21 JIA5265 DFW → SBN Jul 21, 21:40 UTCJul 21, 22:30 UTC50m
2026-07-21 JIA5265 DFW → SBN Jul 21, 19:05 UTCJul 21, 19:55 UTC50m
2026-07-21 JIA5179 PHL → RDU Jul 21, 16:25 UTCJul 21, 17:30 UTC1h 5m
2026-07-21 JIA5179 PHL → RDU Jul 21, 14:30 UTCJul 21, 15:35 UTC1h 5m
2026-07-21 JIA5443 PHL → AVL Jul 21, 02:15 UTCJul 21, 03:50 UTC1h 35m
2026-07-20 JIA5443 PHL → AVL Jul 20, 23:35 UTCJul 21, 01:15 UTC1h 40m
2026-07-20 JIA5022 DCA → PHL Jul 20, 21:20 UTCJul 20, 22:10 UTC50m
2026-07-20 JIA5145 - Jul 20, 16:00 UTCJul 20, 17:05 UTC1h 5m
2026-07-20 JIA5145 CVG → DCA Jul 20, 15:57 UTCJul 20, 17:00 UTC1h 3m
2026-07-20 JIA5145 DCA → CVG Jul 20, 13:45 UTCJul 20, 14:55 UTC1h 10m
2026-07-20 JIA5501 ALB → DCA Jul 20, 10:20 UTCJul 20, 11:35 UTC1h 15m
2026-07-20 JIA5498 - Jul 20, 03:25 UTCJul 20, 04:05 UTC40m
2026-07-20 JIA5141 - Jul 20, 00:40 UTCJul 20, 01:20 UTC40m
2026-07-19 JIA5141 - Jul 19, 23:10 UTCJul 19, 23:45 UTC35m
2026-07-19 JIA5093 - Jul 19, 19:25 UTCJul 19, 21:15 UTC1h 50m
2026-07-19 JIA5093 BTV → CLT Jul 19, 19:23 UTCJul 19, 21:11 UTC1h 48m

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?
No active broadcast right now. Last signal was Jul 26, 22:35 UTC.
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, JIA5614, JIA5049.