sensors Mode-S transponder

A1CD55

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N215NV · AIRBUS A-320 · operated by SUNRISE ASSET MANAGEMENT LLC

Hex
A1CD55
Octal
50346525
Decimal
10,603,861
Country
US
Tail
N215NV
Type
A320
No current signal · last broadcast 7h ago
Flights observed
226
Distinct callsigns
20
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S A1CD55.

Country allocation

The ICAO 24-bit address A1CD55 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
AAY9215 - 5 2026-07-01
AAY9203 - 5 2026-06-26
AAY9202 - 4 2026-07-12
AAY9201 - 3 2026-07-12
AAY447 Allegiant Air 3 2026-04-17
AAY2821 Allegiant Air 3 2026-05-29
AAY1193 Allegiant Air 3 2026-05-26
AAY9615 Allegiant Air 2 2026-06-16
AAY948 - 2 2026-07-11
AAY924 - 2 2026-07-13
AAY9200 - 2 2026-06-22
AAY869 - 2 2026-07-11
AAY857 - 2 2026-07-13
AAY430 - 2 2026-06-21
AAY4116 Allegiant Air 2 2026-04-13
AAY366 Allegiant Air 2 2026-06-21
AAY3090 Allegiant Air 2 2026-06-29
AAY2971 Allegiant Air 2 2026-05-25
AAY2914 Allegiant Air 2 2026-05-04
AAY2881 Allegiant Air 2 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AAY944 - Jul 14, 17:00 UTCJul 14, 19:35 UTC2h 35m
2026-07-14 AAY2466 - Jul 14, 12:55 UTCJul 14, 15:30 UTC2h 35m
2026-07-13 AAY857 - Jul 13, 22:45 UTCJul 14, 01:10 UTC2h 25m
2026-07-13 AAY2503 - Jul 13, 19:10 UTCJul 13, 21:35 UTC2h 25m
2026-07-13 AAY2481 - Jul 13, 14:30 UTCJul 13, 16:45 UTC2h 15m
2026-07-13 AAY924 - Jul 13, 11:10 UTCJul 13, 13:25 UTC2h 15m
2026-07-12 AAY9202 - Jul 12, 23:35 UTCJul 12, 23:45 UTC10m
2026-07-12 AAY1178 - Jul 12, 21:00 UTCJul 12, 22:50 UTC1h 50m
2026-07-12 AAY1180 - Jul 12, 17:50 UTCJul 12, 19:35 UTC1h 45m
2026-07-12 AAY9201 - Jul 12, 16:10 UTCJul 12, 16:20 UTC10m
2026-07-11 AAY869 - Jul 11, 23:15 UTCJul 12, 01:35 UTC2h 20m
2026-07-11 AAY948 - Jul 11, 19:20 UTCJul 11, 22:01 UTC2h 40m
2026-07-10 AAY867 - Jul 10, 01:40 UTCJul 10, 03:45 UTC2h 5m
2026-07-09 AAY904 - Jul 9, 21:20 UTCJul 9, 23:40 UTC2h 20m
2026-07-09 AAY959 - Jul 9, 16:55 UTCJul 9, 19:35 UTC2h 40m
2026-07-09 AAY2475 SFB → PBG Jul 9, 12:50 UTCJul 9, 15:25 UTC2h 35m
2026-07-07 AAY931 - Jul 7, 15:30 UTCJul 7, 18:00 UTC2h 30m
2026-07-07 AAY921 - Jul 7, 11:55 UTCJul 7, 14:15 UTC2h 20m
2026-07-06 AAY879 - Jul 6, 22:15 UTCJul 7, 00:50 UTC2h 35m
2026-07-06 AAY909 - Jul 6, 18:20 UTCJul 6, 21:00 UTC2h 40m
2026-07-06 AAY2481 - Jul 6, 14:30 UTCJul 6, 16:45 UTC2h 15m
2026-07-06 AAY924 SBN → PGD Jul 6, 11:15 UTCJul 6, 13:25 UTC2h 10m
2026-07-05 AAY859 - Jul 5, 23:25 UTCJul 6, 02:05 UTC2h 40m
2026-07-05 AAY847 - Jul 5, 20:00 UTCJul 5, 22:30 UTC2h 30m
2026-07-05 AAY864 - Jul 5, 15:40 UTCJul 5, 18:30 UTC2h 50m
2026-07-05 AAY862 - Jul 5, 11:55 UTCJul 5, 14:25 UTC2h 30m
2026-07-04 AAY869 - Jul 4, 22:45 UTCJul 5, 01:15 UTC2h 30m
2026-07-04 AAY948 - Jul 4, 19:05 UTCJul 4, 21:35 UTC2h 30m
2026-07-04 AAY2487 - Jul 4, 15:25 UTCJul 4, 17:40 UTC2h 15m
2026-07-04 AAY955 PGD → PVD Jul 4, 11:50 UTCJul 4, 14:05 UTC2h 15m
2026-07-04 AAY858 - Jul 4, 00:40 UTCJul 4, 02:50 UTC2h 10m
2026-07-03 AAY857 - Jul 3, 21:25 UTCJul 3, 23:35 UTC2h 10m
2026-07-03 AAY866 - Jul 3, 16:20 UTCJul 3, 19:20 UTC3h 0m
2026-07-03 AAY861 - Jul 3, 12:35 UTCJul 3, 15:10 UTC2h 35m
2026-07-03 AAY913 - Jul 3, 01:05 UTCJul 3, 03:10 UTC2h 5m
2026-07-02 AAY930 - Jul 2, 21:45 UTCJul 2, 23:50 UTC2h 5m
2026-07-02 AAY889 - Jul 2, 16:50 UTCJul 2, 19:15 UTC2h 25m
2026-07-02 AAY906 ALB → PGD Jul 2, 13:20 UTCJul 2, 15:40 UTC2h 20m
2026-07-02 AAY9290 - Jul 2, 03:00 UTCJul 2, 03:25 UTC25m
2026-07-01 AAY9215 - Jul 1, 12:00 UTCJul 1, 12:35 UTC35m
2026-06-30 AAY6225 - Jun 30, 15:25 UTCJun 30, 17:30 UTC2h 5m
2026-06-30 AAY6835 - Jun 30, 12:20 UTCJun 30, 14:35 UTC2h 15m
2026-06-30 AAY2845 - Jun 30, 02:20 UTCJun 30, 04:15 UTC1h 55m
2026-06-29 AAY1215 - Jun 29, 23:14 UTCJun 30, 01:14 UTC2h 0m
2026-06-29 AAY9297 - Jun 29, 19:09 UTCJun 29, 20:09 UTC1h 0m
2026-06-29 AAY3090 EWR → VPS Jun 29, 16:55 UTCJun 29, 17:59 UTC1h 5m
2026-06-29 AAY1470 - Jun 29, 14:25 UTCJun 29, 15:30 UTC1h 5m
2026-06-29 AAY9298 TYS → CVG Jun 29, 10:40 UTCJun 29, 12:05 UTC1h 25m
2026-06-29 AAY377 - Jun 29, 00:34 UTCJun 29, 02:30 UTC1h 55m
2026-06-28 AAY381 - Jun 28, 21:30 UTCJun 28, 23:25 UTC1h 55m

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 N215NV page for operator, model, and routing details .

Mode-S A1CD55 frequently asked

What is Mode-S code A1CD55?
A1CD55 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N215NV.
Where is Mode-S A1CD55 registered?
Mode-S code A1CD55 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 A1CD55 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1CD55, octal 50346525, decimal 10,603,861.
What flights does A1CD55 operate?
Mode-S A1CD55 has broadcast 20 distinct callsigns, including AAY9215, AAY9203, AAY9202, AAY9201, AAY447.