Apparatus

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sensors Mode-S transponder

A716EE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N556NN · BOMBARDIER Regional Jet CRJ-900 · operated by AMERICAN AIRLINES INC

Hex
A716EE
Octal
51613356
Decimal
10,950,382
Country
US
Tail
N556NN
Type
CRJ9
Broadcasting now · callsign JIA5598 · 18,300 ft
Flights observed
653
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:55 UTC

Current position

A716EE is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A716EE 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
JIA5185 PSA Airlines 10 2026-07-22
JIA5511 - 8 2026-07-19
JIA5490 PSA Airlines 8 2026-06-04
JIA5266 PSA Airlines 8 2026-06-18
JIA5182 - 8 2026-07-19
JIA5570 - 7 2026-07-16
JIA5304 - 7 2026-07-09
JIA5262 PSA Airlines 7 2026-06-04
JIA5022 - 7 2026-07-08
JIA5020 PSA Airlines 7 2026-07-24
JIA5579 PSA Airlines 6 2026-05-15
JIA5444 - 6 2026-07-21
JIA5337 - 6 2026-06-28
JIA5256 PSA Airlines 6 2026-07-22
JIA5238 PSA Airlines 6 2026-06-08
JIA5144 PSA Airlines 6 2026-07-21
JIA5604 PSA Airlines 5 2026-06-11
JIA5591 - 5 2026-06-21
JIA5518 PSA Airlines 5 2026-05-21
JIA5425 - 5 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JIA5106 BUF → PHL Jul 26, 20:05 UTCJul 26, 20:55 UTC50m
2026-07-26 JIA5216 DCA → TYS Jul 26, 17:25 UTCJul 26, 18:55 UTC1h 30m
2026-07-26 JIA5216 DCA → TYS Jul 26, 14:20 UTCJul 26, 15:40 UTC1h 20m
2026-07-26 JIA5445 DCA → MHT Jul 26, 11:35 UTCJul 26, 12:35 UTC1h 0m
2026-07-26 JIA5147 CHS → DCA Jul 26, 00:50 UTCJul 26, 01:55 UTC1h 5m
2026-07-26 JIA5147 CHS → DCA Jul 26, 00:45 UTCJul 26, 01:48 UTC1h 3m
2026-07-25 JIA5261 DAY → DCA Jul 25, 21:25 UTCJul 25, 23:10 UTC1h 45m
2026-07-25 JIA5261 DAY → DCA Jul 25, 18:25 UTCJul 25, 20:10 UTC1h 45m
2026-07-25 JIA5145 PHL → PVD Jul 25, 15:30 UTCJul 25, 16:30 UTC1h 0m
2026-07-25 JIA5145 PHL → PVD Jul 25, 13:35 UTCJul 25, 14:40 UTC1h 5m
2026-07-25 JIA5259 PHL → BNA Jul 25, 10:00 UTCJul 25, 11:15 UTC1h 15m
2026-07-25 JIA5233 MHT → DCA Jul 25, 05:49 UTCJul 25, 07:04 UTC1h 15m
2026-07-24 JIA5285 DAY → CLT Jul 24, 21:50 UTCJul 24, 23:10 UTC1h 20m
2026-07-24 JIA5285 DAY → CLT Jul 24, 21:49 UTCJul 24, 23:05 UTC1h 16m
2026-07-24 JIA5288 DCA → SYR Jul 24, 19:15 UTCJul 24, 21:00 UTC1h 45m
2026-07-24 JIA5020 MHT → PHL Jul 24, 16:20 UTCJul 24, 17:50 UTC1h 30m
2026-07-24 JIA5020 MHT → PHL Jul 24, 13:30 UTCJul 24, 14:50 UTC1h 20m
2026-07-24 JIA5036 CLT → CMH Jul 24, 11:00 UTCJul 24, 12:10 UTC1h 10m
2026-07-24 JIA5662 BTV → PHL Jul 24, 00:50 UTCJul 24, 01:55 UTC1h 5m
2026-07-23 JIA5568 CLT → CMH Jul 23, 22:05 UTCJul 23, 23:50 UTC1h 45m
2026-07-23 JIA5568 CLT → CMH Jul 23, 19:35 UTCJul 23, 20:55 UTC1h 20m
2026-07-23 JIA5647 BUF → PHL Jul 23, 17:05 UTCJul 23, 18:10 UTC1h 5m
2026-07-23 JIA5647 BUF → PHL Jul 23, 14:40 UTCJul 23, 15:50 UTC1h 10m
2026-07-23 JIA5561 DCA → BHM Jul 23, 11:25 UTCJul 23, 13:00 UTC1h 35m
2026-07-23 JIA5267 MKE → CLT Jul 23, 01:40 UTCJul 23, 03:05 UTC1h 25m
2026-07-23 JIA5267 MKE → CLT Jul 23, 01:38 UTCJul 23, 03:02 UTC1h 24m
2026-07-22 JIA5256 DTW → PHL Jul 22, 22:50 UTCJul 22, 23:45 UTC55m
2026-07-22 JIA5256 DTW → PHL Jul 22, 22:42 UTCJul 22, 23:40 UTC58m
2026-07-22 JIA5256 DTW → PHL Jul 22, 20:40 UTCJul 22, 21:35 UTC55m
2026-07-22 JIA5185 PHL → BGR Jul 22, 17:35 UTCJul 22, 19:10 UTC1h 35m
2026-07-22 JIA5185 PHL → BGR Jul 22, 15:15 UTCJul 22, 16:45 UTC1h 30m
2026-07-22 JIA5669 ATL → PHL Jul 22, 11:25 UTCJul 22, 13:00 UTC1h 35m
2026-07-22 JIA5451 PIA → CLT Jul 22, 03:50 UTCJul 22, 05:10 UTC1h 20m
2026-07-22 JIA5451 PIA → CLT Jul 22, 03:44 UTCJul 22, 05:21 UTC1h 37m
2026-07-22 JIA5150 PVD → PHL Jul 22, 01:30 UTCJul 22, 02:35 UTC1h 5m
2026-07-21 JIA5150 PVD → PHL Jul 21, 23:45 UTCJul 22, 00:45 UTC1h 0m
2026-07-21 JIA5444 - Jul 21, 18:50 UTCJul 21, 20:25 UTC1h 35m
2026-07-21 JIA5444 - Jul 21, 16:10 UTCJul 21, 17:45 UTC1h 35m
2026-07-21 JIA5144 DFW → TLH Jul 21, 13:15 UTCJul 21, 14:10 UTC55m
2026-07-21 JIA5144 DFW → TLH Jul 21, 11:30 UTCJul 21, 12:30 UTC1h 0m
2026-07-21 JIA5507 DCA → MEM Jul 21, 09:15 UTCJul 21, 10:00 UTC45m
2026-07-21 JIA5498 - Jul 21, 03:30 UTCJul 21, 04:10 UTC40m
2026-07-21 JIA5498 CLT → ATL Jul 21, 03:27 UTCJul 21, 04:07 UTC40m
2026-07-20 JIA5407 - Jul 20, 23:35 UTCJul 21, 01:05 UTC1h 29m
2026-07-20 JIA5407 - Jul 20, 20:50 UTCJul 20, 22:35 UTC1h 45m
2026-07-20 JIA5595 GGT → CLT Jul 20, 16:20 UTCJul 20, 18:32 UTC2h 12m
2026-07-20 JIA5595 - Jul 20, 13:30 UTCJul 20, 18:35 UTC5h 5m
2026-07-20 JIA5214 DCA → PWM Jul 20, 10:05 UTCJul 20, 11:15 UTC1h 10m
2026-07-20 JIA5214 DCA → PWM Jul 20, 10:03 UTCJul 20, 11:13 UTC1h 10m
2026-07-20 JIA5613 DCA → PVD Jul 20, 03:10 UTCJul 20, 04:15 UTC1h 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 N556NN page for operator, model, and routing details .

Mode-S A716EE frequently asked

What is Mode-S code A716EE?
A716EE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N556NN.
Where is Mode-S A716EE registered?
Mode-S code A716EE 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 A716EE broadcasting right now?
Yes. Mode-S A716EE is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A716EE, octal 51613356, decimal 10,950,382.
What flights does A716EE operate?
Mode-S A716EE has broadcast 20 distinct callsigns, including JIA5185, JIA5511, JIA5490, JIA5266, JIA5182.