Apparatus

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sensors Mode-S transponder

A37AB5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N323NV · AIRBUS A-319 · operated by SUNRISE ASSET MANAGEMENT LLC

Hex
A37AB5
Octal
50675265
Decimal
10,713,781
Country
US
Tail
N323NV
Type
A319
No current signal · last broadcast Jul 26, 21:00 UTC
Flights observed
227
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:00 UTC

Last known position

Most recent position reported by Mode-S A37AB5.

Country allocation

The ICAO 24-bit address A37AB5 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
AAY281 Allegiant Air 13 2026-06-05
AAY276 Allegiant Air 8 2026-06-05
AAY274 Allegiant Air 8 2026-06-02
AAY271 Allegiant Air 8 2026-06-01
AAY272 Allegiant Air 7 2026-06-05
AAY42 Allegiant Air 5 2026-07-25
AAY3391 Allegiant Air 5 2026-05-17
AAY3390 Allegiant Air 5 2026-05-17
AAY286 - 5 2026-07-02
AAY284 Allegiant Air 5 2026-06-08
AAY282 - 5 2026-07-02
AAY72 - 4 2026-07-09
AAY36 Allegiant Air 4 2026-07-24
AAY303 Allegiant Air 4 2026-06-05
AAY293 Allegiant Air 4 2026-06-04
AAY283 Allegiant Air 4 2026-06-04
AAY277 Allegiant Air 4 2026-05-15
AAY273 - 4 2026-07-03
AAY27 Allegiant Air 4 2026-07-24
AAY20 Allegiant Air 4 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAY34 GTF → LAS Jul 26, 20:15 UTCJul 26, 21:00 UTC45m
2026-07-26 AAY12 FWA → LAS Jul 26, 18:05 UTCJul 26, 18:45 UTC40m
2026-07-26 AAY83 SHV → LAS Jul 26, 15:15 UTCJul 26, 16:10 UTC55m
2026-07-26 AAY20 FAT → LAS Jul 26, 13:15 UTCJul 26, 14:05 UTC50m
2026-07-25 AAY44 SBN → LAS Jul 25, 04:55 UTCJul 25, 07:00 UTC2h 5m
2026-07-25 AAY42 GRR → LAS Jul 25, 01:30 UTCJul 25, 03:25 UTC1h 55m
2026-07-24 AAY1634 BIS → LAS Jul 24, 23:15 UTCJul 25, 00:05 UTC50m
2026-07-24 AAY27 FCA → LAS Jul 24, 21:15 UTCJul 24, 22:05 UTC50m
2026-07-24 AAY36 GRI → LAS Jul 24, 17:00 UTCJul 24, 19:25 UTC2h 25m
2026-07-24 AAY3 LAS → LEX Jul 24, 13:25 UTCJul 24, 15:50 UTC2h 25m
2026-07-24 AAY29 LAS → MFR Jul 24, 01:20 UTCJul 24, 03:05 UTC1h 45m
2026-07-23 AAY31 FAT → LAS Jul 23, 22:35 UTCJul 24, 00:15 UTC1h 40m
2026-07-23 AAY1707 LAS → FSD Jul 23, 19:00 UTCJul 23, 21:05 UTC2h 5m
2026-07-23 AAY30 LAS → GJT Jul 23, 16:25 UTCJul 23, 18:00 UTC1h 35m
2026-07-21 AAY59 LAS → OMA Jul 21, 04:10 UTCJul 21, 05:40 UTC1h 30m
2026-07-21 AAY1637 BLV → LAS Jul 21, 01:40 UTCJul 21, 03:15 UTC1h 35m
2026-07-20 AAY94 MEM → LAS Jul 20, 22:50 UTCJul 21, 00:40 UTC1h 50m
2026-07-20 AAY62 LAS → GRR Jul 20, 20:30 UTCJul 20, 21:55 UTC1h 25m
2026-07-20 AAY36 GRI → LAS Jul 20, 16:45 UTCJul 20, 19:05 UTC2h 20m
2026-07-20 AAY3 LAS → LEX Jul 20, 13:15 UTCJul 20, 15:35 UTC2h 20m
2026-07-20 AAY56 - Jul 20, 03:05 UTCJul 20, 05:50 UTC2h 45m
2026-07-19 AAY63 PSC → LAS Jul 19, 23:20 UTCJul 20, 01:55 UTC2h 35m
2026-07-19 AAY34 GTF → LAS Jul 19, 20:15 UTCJul 19, 21:05 UTC50m
2026-07-19 AAY12 - Jul 19, 18:10 UTCJul 19, 18:50 UTC40m
2026-07-19 AAY83 SHV → LAS Jul 19, 15:20 UTCJul 19, 16:15 UTC55m
2026-07-19 AAY20 LAS → SCK Jul 19, 13:10 UTCJul 19, 14:05 UTC55m
2026-07-18 AAY11 - Jul 18, 22:05 UTCJul 18, 22:55 UTC50m
2026-07-18 AAY27 - Jul 18, 20:05 UTCJul 18, 20:40 UTC35m
2026-07-18 AAY84 - Jul 18, 17:45 UTCJul 18, 18:40 UTC55m
2026-07-18 AAY20 LAS → SCK Jul 18, 15:45 UTCJul 18, 16:40 UTC55m
2026-07-10 AAY7 - Jul 10, 16:10 UTCJul 10, 17:50 UTC1h 40m
2026-07-10 AAY6 - Jul 10, 13:25 UTCJul 10, 15:05 UTC1h 40m
2026-07-10 AAY49 - Jul 10, 04:25 UTCJul 10, 06:40 UTC2h 15m
2026-07-10 AAY47 LAS → ICT Jul 10, 01:20 UTCJul 10, 03:20 UTC2h 0m
2026-07-09 AAY88 - Jul 9, 23:00 UTCJul 9, 23:55 UTC55m
2026-07-09 AAY87 LAS → SCK Jul 9, 21:00 UTCJul 9, 22:00 UTC1h 0m
2026-07-09 AAY72 OKC → LAS Jul 9, 17:25 UTCJul 9, 19:30 UTC2h 5m
2026-07-09 AAY134 LAS → OKC Jul 9, 14:20 UTCJul 9, 16:25 UTC2h 5m
2026-07-07 AAY44 - Jul 7, 04:05 UTCJul 7, 06:05 UTC2h 0m
2026-07-07 AAY42 - Jul 7, 01:00 UTCJul 7, 02:50 UTC1h 50m
2026-07-06 AAY1634 - Jul 6, 22:45 UTCJul 6, 23:35 UTC50m
2026-07-06 AAY27 - Jul 6, 20:35 UTCJul 6, 21:20 UTC45m
2026-07-06 AAY36 - Jul 6, 16:40 UTCJul 6, 18:55 UTC2h 15m
2026-07-06 AAY03 - Jul 6, 13:20 UTCJul 6, 15:35 UTC2h 15m
2026-07-06 AAY49 - Jul 6, 03:50 UTCJul 6, 06:00 UTC2h 10m
2026-07-06 AAY47 LAS → ICT Jul 6, 00:30 UTCJul 6, 02:35 UTC2h 5m
2026-07-05 AAY84 - Jul 5, 22:25 UTCJul 5, 23:20 UTC55m
2026-07-05 AAY87 LAS → SCK Jul 5, 20:10 UTCJul 5, 21:05 UTC55m
2026-07-05 AAY72 - Jul 5, 16:50 UTCJul 5, 19:00 UTC2h 10m
2026-07-05 AAY66 LAS → OKC Jul 5, 13:35 UTCJul 5, 15:45 UTC2h 10m

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 N323NV page for operator, model, and routing details .

Mode-S A37AB5 frequently asked

What is Mode-S code A37AB5?
A37AB5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N323NV.
Where is Mode-S A37AB5 registered?
Mode-S code A37AB5 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 A37AB5 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A37AB5, octal 50675265, decimal 10,713,781.
What flights does A37AB5 operate?
Mode-S A37AB5 has broadcast 20 distinct callsigns, including AAY281, AAY276, AAY274, AAY271, AAY272.