Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A25C75

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N251NV · AIRBUS A-320 · operated by SUNRISE ASSET MANAGEMENT LLC

Hex
A25C75
Octal
50456165
Decimal
10,640,501
Country
US
Tail
N251NV
Type
A320
No current signal · last broadcast 3h ago
Flights observed
162
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A25C75.

Country allocation

The ICAO 24-bit address A25C75 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
AAY374 Allegiant Air 5 2026-05-03
AAY406 Allegiant Air 4 2026-04-27
AAY404 Allegiant Air 4 2026-04-26
AAY391 Allegiant Air 4 2026-04-17
AAY379 Allegiant Air 4 2026-04-27
AAY915 Allegiant Air 3 2026-05-29
AAY429 Allegiant Air 3 2026-04-26
AAY397 Allegiant Air 3 2026-04-27
AAY366 Allegiant Air 3 2026-05-02
AAY913 Allegiant Air 2 2026-05-29
AAY901 Allegiant Air 2 2026-05-25
AAY887 Allegiant Air 2 2026-05-29
AAY882 Allegiant Air 2 2026-05-23
AAY881 Allegiant Air 2 2026-05-14
AAY876 Allegiant Air 2 2026-05-14
AAY868 Allegiant Air 2 2026-05-28
AAY844 Allegiant Air 2 2026-05-22
AAY7011 Allegiant Air 2 2026-04-25
AAY7010 Allegiant Air 2 2026-04-25
AAY421 Allegiant Air 2 2026-04-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AAY887 PGD → SDF May 29, 22:40 UTCMay 30, 01:05 UTC2h 25m
2026-05-29 AAY915 MDW → PGD May 29, 18:45 UTCMay 29, 21:10 UTC2h 25m
2026-05-29 AAY853 PIA → PGD May 29, 15:00 UTCMay 29, 17:15 UTC2h 15m
2026-05-29 AAY842 ALB → PGD May 29, 11:25 UTCMay 29, 13:50 UTC2h 25m
2026-05-29 AAY913 PGD → MDW May 29, 00:50 UTCMay 29, 02:55 UTC2h 5m
2026-05-28 AAY868 IAG → PGD May 28, 21:35 UTCMay 28, 23:40 UTC2h 5m
2026-05-26 AAY903 SGF → PGD May 26, 18:40 UTCMay 26, 20:40 UTC2h 0m
2026-05-26 AAY914 PGD → RFD May 26, 15:20 UTCMay 26, 17:09 UTC1h 50m
2026-05-26 AAY878 MDW → PGD May 26, 00:19 UTCMay 26, 02:55 UTC2h 35m
2026-05-25 AAY2532 PSM → PGD May 25, 20:09 UTCMay 25, 22:34 UTC2h 25m
2026-05-25 AAY909 PGD → PSM May 25, 15:25 UTCMay 25, 18:05 UTC2h 40m
2026-05-25 AAY901 PGD → ALB May 25, 11:40 UTCMay 25, 14:05 UTC2h 25m
2026-05-25 AAY932 PSM → PGD May 25, 01:55 UTCMay 25, 02:30 UTC35m
2026-05-24 AAY964 RFD → PGD May 24, 23:00 UTCMay 24, 23:15 UTC15m
2026-05-24 AAY923 SBN → PGD May 24, 19:30 UTCMay 24, 20:30 UTC1h 0m
2026-05-24 AAY905 PGD → PSM May 24, 16:15 UTCMay 24, 18:15 UTC2h 0m
2026-05-24 AAY2529 FWA → PGD May 24, 13:05 UTCMay 24, 15:00 UTC1h 55m
2026-05-24 AAY887 PGD → SDF May 24, 10:05 UTCMay 24, 12:00 UTC1h 55m
2026-05-23 AAY908 FWA → PGD May 23, 23:30 UTCMay 24, 02:00 UTC2h 30m
2026-05-23 AAY2533 PGD → PIA May 23, 19:45 UTCMay 23, 22:10 UTC2h 25m
2026-05-23 AAY882 PSM → PGD May 23, 15:35 UTCMay 23, 18:00 UTC2h 25m
2026-05-23 AAY901 PGD → ALB May 23, 11:45 UTCMay 23, 14:15 UTC2h 30m
2026-05-23 AAY937 LEX → FLL May 23, 02:10 UTCMay 23, 04:40 UTC2h 29m
2026-05-22 AAY941 PGD → CID May 22, 22:15 UTCMay 23, 00:40 UTC2h 25m
2026-05-22 AAY844 BNA → PGD May 22, 18:40 UTCMay 22, 20:50 UTC2h 10m
2026-05-22 AAY858 PGD → PBG May 22, 15:15 UTCMay 22, 17:00 UTC1h 45m
2026-05-22 AAY2505 PGD → TVC May 22, 12:45 UTCMay 22, 14:10 UTC1h 25m
2026-05-22 AAY2566 PGD → SDF May 22, 10:05 UTCMay 22, 11:40 UTC1h 35m
2026-05-21 AAY913 PGD → MDW May 21, 23:35 UTCMay 22, 01:45 UTC2h 10m
2026-05-21 AAY868 IAG → PGD May 21, 20:15 UTCMay 21, 22:15 UTC2h 0m
2026-05-21 AAY2474 PGD → TVC May 21, 16:10 UTCMay 21, 18:50 UTC2h 40m
2026-05-21 AAY880 TVC → PGD May 21, 12:05 UTCMay 21, 14:40 UTC2h 35m
2026-05-20 AAY893 PGD → ALB May 20, 20:20 UTCMay 20, 23:05 UTC2h 45m
2026-05-20 AAY883 PGD → IAG May 20, 16:00 UTCMay 20, 19:00 UTC3h 0m
2026-05-19 AAY924 SBN → PGD May 19, 00:30 UTCMay 19, 02:55 UTC2h 25m
2026-05-18 AAY2539 PGD → RIC May 18, 20:40 UTCMay 18, 23:15 UTC2h 35m
2026-05-18 AAY2472 PGD → FWA May 18, 15:15 UTCMay 18, 17:30 UTC2h 15m
2026-05-18 AAY915 MDW → PGD May 18, 11:55 UTCMay 18, 14:15 UTC2h 20m
2026-05-18 AAY4603 CLT → PGD May 18, 00:40 UTCMay 18, 02:30 UTC1h 50m
2026-05-17 AAY4602 OMA → PIE May 17, 22:10 UTCMay 17, 23:50 UTC1h 40m
2026-05-16 AAY4601 LYH → CEF May 16, 16:25 UTCMay 16, 17:45 UTC1h 20m
2026-05-16 AAY4600 PIE → PVD May 16, 12:25 UTCMay 16, 14:51 UTC2h 25m
2026-05-15 AAY844 BNA → PGD May 15, 22:25 UTCMay 16, 00:45 UTC2h 20m
2026-05-15 AAY2573 PGD → FWA May 15, 19:00 UTCMay 15, 21:25 UTC2h 25m
2026-05-15 AAY2564 PGD → SBN May 15, 14:10 UTCMay 15, 17:05 UTC2h 54m
2026-05-15 AAY906 ALB → PGD May 15, 10:10 UTCMay 15, 13:05 UTC2h 55m
2026-05-14 AAY929 PGD → IAG May 14, 22:55 UTCMay 15, 01:45 UTC2h 50m
2026-05-14 AAY2547 TOL → PGD May 14, 19:05 UTCMay 14, 21:50 UTC2h 45m
2026-05-14 AAY881 PSM → PGD May 14, 14:35 UTCMay 14, 16:45 UTC2h 10m
2026-05-14 AAY876 PVD → PGD May 14, 11:20 UTCMay 14, 13:25 UTC2h 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 N251NV page for operator, model, and routing details .

Mode-S A25C75 frequently asked

What is Mode-S code A25C75?
A25C75 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N251NV.
Where is Mode-S A25C75 registered?
Mode-S code A25C75 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 A25C75 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 A25C75, octal 50456165, decimal 10,640,501.
What flights does A25C75 operate?
Mode-S A25C75 has broadcast 20 distinct callsigns, including AAY374, AAY406, AAY404, AAY391, AAY379.