Apparatus

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sensors Mode-S transponder

A66C99

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N513AE · BOMBARDIER Regional Jet CRJ-700 · operated by AMERICAN AIRLINES INC

Hex
A66C99
Octal
51466231
Decimal
10,906,777
Country
US
Tail
N513AE
Type
CRJ7
No current signal · last broadcast 3h ago
Flights observed
601
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A66C99.

Country allocation

The ICAO 24-bit address A66C99 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
JIA5667 - 12 2026-07-11
JIA5092 - 12 2026-06-24
JIA5180 PSA Airlines 8 2026-05-15
JIA5031 - 8 2026-07-11
JIA5403 PSA Airlines 7 2026-05-16
JIA5260 PSA Airlines 7 2026-05-30
JIA5224 - 7 2026-06-19
JIA5080 - 7 2026-06-30
JIA5077 PSA Airlines 7 2026-06-04
JIA5072 - 7 2026-06-21
JIA5561 PSA Airlines 6 2026-05-14
JIA5516 - 6 2026-07-12
JIA5460 PSA Airlines 6 2026-05-14
JIA5346 - 6 2026-07-09
JIA5330 PSA Airlines 6 2026-05-27
JIA5289 - 6 2026-06-30
JIA5246 PSA Airlines 6 2026-06-08
JIA5166 PSA Airlines 6 2026-04-30
JIA5164 - 6 2026-07-07
JIA5119 PSA Airlines 6 2026-04-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JIA565S - Jul 14, 13:25 UTCJul 14, 14:55 UTC1h 30m
2026-07-14 JIA5333 - Jul 14, 03:50 UTCJul 14, 06:55 UTC3h 5m
2026-07-13 JIA5333 - Jul 13, 20:35 UTCJul 13, 23:45 UTC3h 10m
2026-07-13 JIA5668 YYZ → DCA Jul 13, 16:15 UTCJul 13, 17:15 UTC1h 0m
2026-07-13 JIA5522 PHL → YYZ Jul 13, 13:59 UTCJul 13, 14:59 UTC1h 0m
2026-07-13 JIA5522 PSQ → YYZ Jul 13, 14:00 UTCJul 13, 15:00 UTC1h 0m
2026-07-13 JIA5139 BTV → PHL Jul 13, 10:10 UTCJul 13, 11:15 UTC1h 5m
2026-07-13 JIA5139 BTV → PHL Jul 13, 10:10 UTCJul 13, 11:13 UTC1h 3m
2026-07-13 JIA5674 - Jul 13, 04:20 UTCJul 13, 05:31 UTC1h 10m
2026-07-13 JIA5416 MSP → DCA Jul 13, 01:10 UTCJul 13, 03:10 UTC2h 0m
2026-07-13 JIA5416 MSP → DCA Jul 13, 01:06 UTCJul 13, 03:10 UTC2h 4m
2026-07-12 JIA5416 DCA → MSP Jul 12, 22:10 UTCJul 13, 00:15 UTC2h 5m
2026-07-12 JIA5104 - Jul 12, 17:15 UTCJul 12, 18:10 UTC55m
2026-07-12 JIA5104 DCA → BUF Jul 12, 15:25 UTCJul 12, 16:15 UTC50m
2026-07-12 JIA5516 - Jul 12, 13:15 UTCJul 12, 14:20 UTC1h 5m
2026-07-12 JIA5597 DCA → DTW Jul 12, 02:05 UTCJul 12, 03:15 UTC1h 10m
2026-07-12 JIA5597 DCA → DTW Jul 12, 02:04 UTCJul 12, 03:14 UTC1h 10m
2026-07-11 JIA5667 YYZ → DCA Jul 11, 23:00 UTCJul 12, 00:01 UTC1h 0m
2026-07-11 JIA5667 DCA → YYZ Jul 11, 20:55 UTCJul 11, 21:55 UTC1h 0m
2026-07-11 JIA5617 - Jul 11, 17:05 UTCJul 11, 19:00 UTC1h 55m
2026-07-11 JIA5617 DCA → ECP Jul 11, 14:00 UTCJul 11, 15:45 UTC1h 45m
2026-07-11 JIA5031 - Jul 11, 11:15 UTCJul 11, 12:20 UTC1h 5m
2026-07-11 JIA5031 GSP → DCA Jul 11, 11:14 UTCJul 11, 12:16 UTC1h 2m
2026-07-11 JIA5208 - Jul 11, 03:20 UTCJul 11, 04:15 UTC55m
2026-07-11 JIA5675 PHL → DCA Jul 11, 01:35 UTCJul 11, 02:10 UTC35m
2026-07-10 JIA5675 - Jul 10, 21:40 UTCJul 10, 23:25 UTC1h 45m
2026-07-09 JIA9677 - Jul 9, 23:35 UTCJul 10, 01:55 UTC2h 20m
2026-07-09 JIA5499 - Jul 9, 21:00 UTCJul 9, 22:15 UTC1h 15m
2026-07-09 JIA5346 - Jul 9, 17:55 UTCJul 9, 19:40 UTC1h 45m
2026-07-09 JIA5346 PIA → DFW Jul 9, 17:54 UTCJul 9, 19:32 UTC1h 38m
2026-07-09 JIA5346 - Jul 9, 14:55 UTCJul 9, 16:25 UTC1h 30m
2026-07-09 JIA5325 - Jul 9, 11:05 UTCJul 9, 12:50 UTC1h 45m
2026-07-09 JIA5325 TLH → DFW Jul 9, 11:02 UTCJul 9, 12:55 UTC1h 53m
2026-07-09 JIA5069 - Jul 9, 01:35 UTCJul 9, 03:15 UTC1h 40m
2026-07-08 JIA5329 - Jul 8, 21:55 UTCJul 8, 23:25 UTC1h 30m
2026-07-08 JIA5078 - Jul 8, 19:05 UTCJul 8, 20:30 UTC1h 25m
2026-07-08 JIA5337 - Jul 8, 16:00 UTCJul 8, 17:05 UTC1h 5m
2026-07-08 JIA5337 PVD → DCA Jul 8, 15:58 UTCJul 8, 17:03 UTC1h 5m
2026-07-08 JIA5337 - Jul 8, 14:15 UTCJul 8, 15:10 UTC55m
2026-07-08 JIA5503 - Jul 8, 11:10 UTCJul 8, 12:50 UTC1h 40m
2026-07-08 JIA5503 MSN → DCA Jul 8, 11:09 UTCJul 8, 12:49 UTC1h 40m
2026-07-08 JIA9961 PHL → CAK Jul 8, 00:45 UTCJul 8, 02:00 UTC1h 15m
2026-07-07 JIA5164 - Jul 7, 23:00 UTCJul 7, 23:45 UTC45m
2026-07-07 JIA5200 DCA → HSV Jul 7, 20:15 UTCJul 7, 21:40 UTC1h 25m
2026-07-07 JIA5200 DCA → HSV Jul 7, 20:10 UTCJul 7, 21:28 UTC1h 18m
2026-07-07 JIA5200 DCA → HSV Jul 7, 17:45 UTCJul 7, 19:05 UTC1h 20m
2026-07-07 JIA5419 - Jul 7, 13:25 UTCJul 7, 14:15 UTC50m
2026-07-07 JIA5419 PVD → DCA Jul 7, 13:22 UTCJul 7, 14:31 UTC1h 9m
2026-07-06 JIA9952 - Jul 6, 23:30 UTCJul 7, 00:45 UTC1h 15m
2026-07-03 JIA5305 DCA → CAK Jul 3, 23:20 UTCJul 4, 00:05 UTC45m

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 N513AE page for operator, model, and routing details .

Mode-S A66C99 frequently asked

What is Mode-S code A66C99?
A66C99 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N513AE.
Where is Mode-S A66C99 registered?
Mode-S code A66C99 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 A66C99 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A66C99, octal 51466231, decimal 10,906,777.
What flights does A66C99 operate?
Mode-S A66C99 has broadcast 20 distinct callsigns, including JIA5667, JIA5092, JIA5180, JIA5031, JIA5403.