Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A7EFF7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N610NN · BOMBARDIER Regional Jet CRJ-900 · operated by AMERICAN AIRLINES INC

Hex
A7EFF7
Octal
51767767
Decimal
11,005,943
Country
US
Tail
N610NN
Type
CRJ9
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
701
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S A7EFF7.

Country allocation

The ICAO 24-bit address A7EFF7 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 2026-07-01
JIA5548 - 8 2026-06-17
JIA5256 - 8 2026-06-20
JIA5249 - 8 2026-06-23
JIA5136 PSA Airlines 8 2026-06-05
JIA5030 - 8 2026-07-17
JIA5395 PSA Airlines 7 2026-05-01
JIA5394 - 7 2026-07-12
JIA5306 PSA Airlines 7 2026-05-25
JIA5639 PSA Airlines 6 2026-06-03
JIA5621 PSA Airlines 6 2026-06-07
JIA5532 - 6 2026-07-12
JIA5461 - 6 2026-07-10
JIA5233 - 6 2026-06-21
JIA5179 - 6 2026-07-08
JIA5629 PSA Airlines 5 2026-05-20
JIA5627 - 5 2026-07-06
JIA5541 - 5 2026-06-21
JIA5455 PSA Airlines 5 2026-05-17
JIA5443 - 5 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JIA5156 DFW → DAY Jul 26, 19:35 UTCJul 26, 21:30 UTC1h 55m
2026-07-26 JIA5304 CLT → MDT Jul 26, 17:00 UTCJul 26, 18:20 UTC1h 20m
2026-07-26 JIA5304 CLT → MDT Jul 26, 14:35 UTCJul 26, 15:45 UTC1h 10m
2026-07-26 JIA5304 CLT → MDT Jul 26, 14:34 UTCJul 26, 15:59 UTC1h 25m
2026-07-26 JIA5194 DTW → DCA Jul 26, 11:15 UTCJul 26, 12:25 UTC1h 10m
2026-07-26 JIA5517 JAX → PHL Jul 26, 00:25 UTCJul 26, 01:25 UTC1h 0m
2026-07-25 JIA5026 ALB → PHL Jul 25, 20:45 UTCJul 25, 22:50 UTC2h 5m
2026-07-25 JIA5026 ALB → PHL Jul 25, 17:50 UTCJul 25, 19:45 UTC1h 55m
2026-07-25 JIA5111 DCA → GSO Jul 25, 15:30 UTCJul 25, 16:10 UTC40m
2026-07-25 JIA5111 DCA → GSO Jul 25, 13:50 UTCJul 25, 14:25 UTC35m
2026-07-25 JIA5128 DCA → HPN Jul 25, 10:10 UTCJul 25, 12:10 UTC2h 0m
2026-07-25 JIA5428 LEX → PHL Jul 25, 03:05 UTCJul 25, 04:50 UTC1h 45m
2026-07-25 JIA5428 LEX → PHL Jul 25, 03:01 UTCJul 25, 04:55 UTC1h 54m
2026-07-24 JIA5594 MLB → CLT Jul 24, 23:55 UTCJul 25, 01:50 UTC1h 55m
2026-07-24 JIA5594 MLB → CLT Jul 24, 21:20 UTCJul 24, 23:10 UTC1h 50m
2026-07-24 JIA5655 CLT → PVD Jul 24, 18:40 UTCJul 24, 20:00 UTC1h 20m
2026-07-24 JIA5655 CLT → PVD Jul 24, 16:10 UTCJul 24, 17:30 UTC1h 20m
2026-07-24 JIA5442 DCA → CHS Jul 24, 14:25 UTCJul 24, 15:10 UTC45m
2026-07-24 JIA5442 DCA → CHS Jul 24, 14:21 UTCJul 24, 15:08 UTC47m
2026-07-24 JIA5442 DCA → CHS Jul 24, 12:40 UTCJul 24, 13:30 UTC50m
2026-07-24 JIA5115 PHL → BGR Jul 24, 00:45 UTCJul 24, 02:20 UTC1h 35m
2026-07-24 JIA5115 PHL → BGR Jul 24, 00:44 UTCJul 24, 02:16 UTC1h 32m
2026-07-23 JIA5115 PHL → BGR Jul 23, 21:50 UTCJul 23, 23:25 UTC1h 35m
2026-07-23 JIA5655 CLT → PVD Jul 23, 18:30 UTCJul 23, 19:50 UTC1h 20m
2026-07-23 JIA5655 CLT → PVD Jul 23, 15:55 UTCJul 23, 17:15 UTC1h 20m
2026-07-23 JIA5125 DCA → PVD Jul 23, 12:25 UTCJul 23, 14:20 UTC1h 55m
2026-07-23 JIA5609 IND → CLT Jul 23, 00:25 UTCJul 23, 02:15 UTC1h 50m
2026-07-22 JIA5591 ICT → DCA Jul 22, 18:10 UTCJul 22, 19:55 UTC1h 45m
2026-07-22 JIA5591 ICT → DCA Jul 22, 15:25 UTCJul 22, 17:05 UTC1h 40m
2026-07-22 JIA5408 STL → DCA Jul 22, 00:15 UTCJul 22, 02:00 UTC1h 45m
2026-07-21 JIA5408 STL → DCA Jul 21, 21:25 UTCJul 21, 23:10 UTC1h 45m
2026-07-21 JIA5591 ICT → DCA Jul 21, 18:30 UTCJul 21, 20:10 UTC1h 40m
2026-07-21 JIA5591 ICT → DCA Jul 21, 15:55 UTCJul 21, 17:35 UTC1h 40m
2026-07-21 JIA5669 ATL → PHL Jul 21, 11:30 UTCJul 21, 13:00 UTC1h 30m
2026-07-21 JIA5669 ATL → PHL Jul 21, 11:28 UTCJul 21, 12:58 UTC1h 30m
2026-07-21 JIA5451 PIA → CLT Jul 21, 03:35 UTCJul 21, 05:00 UTC1h 25m
2026-07-21 JIA5141 CVG → CLT Jul 21, 00:20 UTCJul 21, 00:55 UTC35m
2026-07-20 JIA5141 CVG → CLT Jul 20, 22:45 UTCJul 20, 23:30 UTC45m
2026-07-20 JIA5134 - Jul 20, 19:50 UTCJul 20, 20:40 UTC50m
2026-07-20 JIA5134 CMH → CLT Jul 20, 19:45 UTCJul 20, 20:41 UTC56m
2026-07-20 JIA5134 - Jul 20, 17:55 UTCJul 20, 18:50 UTC55m
2026-07-20 JIA5585 ATL → PHL Jul 20, 13:55 UTCJul 20, 14:50 UTC55m
2026-07-20 JIA5585 ATL → PHL Jul 20, 12:00 UTCJul 20, 13:05 UTC1h 5m
2026-07-20 JIA5298 - Jul 20, 00:35 UTCJul 20, 01:50 UTC1h 15m
2026-07-19 JIA5298 - Jul 19, 22:35 UTCJul 19, 23:45 UTC1h 10m
2026-07-19 JIA5294 - Jul 19, 16:45 UTCJul 19, 18:40 UTC1h 55m
2026-07-19 JIA5294 - Jul 19, 14:05 UTCJul 19, 15:45 UTC1h 40m
2026-07-19 JIA5193 PIA → CLT Jul 19, 10:20 UTCJul 19, 11:40 UTC1h 20m
2026-07-19 JIA5193 PIA → CLT Jul 19, 10:19 UTCJul 19, 11:39 UTC1h 20m
2026-07-19 JIA5451 - Jul 19, 05:35 UTCJul 19, 07:05 UTC1h 30m

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 N610NN page for operator, model, and routing details .

Mode-S A7EFF7 frequently asked

What is Mode-S code A7EFF7?
A7EFF7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N610NN.
Where is Mode-S A7EFF7 registered?
Mode-S code A7EFF7 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 A7EFF7 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7EFF7, octal 51767767, decimal 11,005,943.
What flights does A7EFF7 operate?
Mode-S A7EFF7 has broadcast 20 distinct callsigns, including JIA5579, JIA5548, JIA5256, JIA5249, JIA5136.