Apparatus

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sensors Mode-S transponder

A38991

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N327NV · AIRBUS A-319 · operated by SUNRISE ASSET MANAGEMENT LLC

Hex
A38991
Octal
50704621
Decimal
10,717,585
Country
US
Tail
N327NV
Type
A319
No current signal · last broadcast Jul 26, 21:50 UTC
Flights observed
387
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:50 UTC

Last known position

Most recent position reported by Mode-S A38991.

Country allocation

The ICAO 24-bit address A38991 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
AAY1445 Allegiant Air 10 2026-05-09
AAY1443 Allegiant Air 10 2026-05-09
AAY3109 Allegiant Air 9 2026-05-14
AAY1454 Allegiant Air 8 2026-05-08
AAY1448 Allegiant Air 8 2026-05-09
AAY928 Allegiant Air 7 2026-06-28
AAY3067 Allegiant Air 7 2026-05-14
AAY1488 Allegiant Air 7 2026-05-08
AAY1451 Allegiant Air 7 2026-05-08
AAY927 - 6 2026-06-23
AAY3100 Allegiant Air 6 2026-05-14
AAY1449 Allegiant Air 6 2026-05-13
AAY954 Allegiant Air 5 2026-06-19
AAY907 - 5 2026-06-27
AAY856 Allegiant Air 5 2026-06-22
AAY874 Allegiant Air 4 2026-06-21
AAY845 Allegiant Air 4 2026-06-27
AAY844 Allegiant Air 4 2026-06-19
AAY3112 Allegiant Air 4 2026-05-18
AAY3102 Allegiant Air 4 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAY1707 LAS → FSD Jul 26, 19:50 UTCJul 26, 21:50 UTC2h 0m
2026-07-26 AAY30 LAS → GJT Jul 26, 16:20 UTCJul 26, 18:00 UTC1h 40m
2026-07-25 AAY83 SHV → LAS Jul 25, 04:30 UTCJul 25, 05:35 UTC1h 5m
2026-07-25 AAY1638 DSM → LAS Jul 25, 02:10 UTCJul 25, 03:30 UTC1h 20m
2026-07-24 AAY1713 LAS → BIS Jul 24, 23:40 UTCJul 25, 01:10 UTC1h 30m
2026-07-24 AAY20 FAT → LAS Jul 24, 21:35 UTCJul 24, 22:35 UTC1h 0m
2026-07-24 AAY74 LAS → SMX Jul 24, 17:15 UTCJul 24, 19:40 UTC2h 25m
2026-07-24 AAY73 LAS → SCK Jul 24, 13:50 UTCJul 24, 16:05 UTC2h 15m
2026-07-24 AAY79 FWA → LAS Jul 24, 05:50 UTCJul 24, 07:30 UTC1h 40m
2026-07-24 AAY78 LAS → MRY Jul 24, 02:45 UTCJul 24, 04:15 UTC1h 30m
2026-07-23 AAY1705 LAS → EUG Jul 23, 20:10 UTCJul 24, 01:20 UTC5h 10m
2026-07-23 AAY15 LAS → LAS Jul 23, 13:40 UTCJul 23, 18:15 UTC4h 35m
2026-07-22 AAY3303 MFE → LAS Jul 22, 21:45 UTCJul 22, 22:55 UTC1h 10m
2026-07-22 AAY3302 LAS → MFE Jul 22, 19:10 UTCJul 22, 20:05 UTC55m
2026-07-21 AAY71 RFD → LAS Jul 21, 05:45 UTCJul 21, 06:45 UTC1h 0m
2026-07-21 AAY69 LAS → OAK Jul 21, 02:45 UTCJul 21, 03:45 UTC1h 0m
2026-07-21 AAY1634 BIS → LAS Jul 21, 00:40 UTCJul 21, 01:35 UTC55m
2026-07-20 AAY27 FCA → LAS Jul 20, 21:00 UTCJul 20, 21:50 UTC50m
2026-07-20 AAY1626 SBN → LAS Jul 20, 17:45 UTCJul 20, 19:35 UTC1h 50m
2026-07-20 AAY1625 - Jul 20, 13:30 UTCJul 20, 15:15 UTC1h 45m
2026-07-20 AAY96 ELP → LAS Jul 20, 06:25 UTCJul 20, 08:45 UTC2h 20m
2026-07-20 AAY95 BZN → LAS Jul 20, 02:20 UTCJul 20, 05:00 UTC2h 40m
2026-07-20 AAY273 BLI → LAS Jul 20, 00:05 UTCJul 20, 01:05 UTC1h 0m
2026-07-19 AAY282 LAS → BLI Jul 19, 22:10 UTCJul 19, 23:00 UTC50m
2026-07-19 AAY271 BLI → AZA Jul 19, 18:30 UTCJul 19, 20:40 UTC2h 10m
2026-07-19 AAY286 LAX → BLI Jul 19, 15:15 UTCJul 19, 17:25 UTC2h 10m
2026-07-19 AAY2 VPS → LAS Jul 19, 02:25 UTCJul 19, 06:40 UTC4h 15m
2026-07-18 AAY2844 - Jul 18, 21:05 UTCJul 18, 22:45 UTC1h 40m
2026-07-18 AAY2872 SFB → BGR Jul 18, 18:35 UTCJul 18, 19:50 UTC1h 15m
2026-07-18 AAY1262 PBG → SFB Jul 18, 15:55 UTCJul 18, 17:15 UTC1h 20m
2026-07-18 AAY2912 - Jul 18, 13:25 UTCJul 18, 14:55 UTC1h 30m
2026-07-18 AAY1197 LCK → SFB Jul 18, 01:25 UTCJul 18, 03:20 UTC1h 56m
2026-07-17 AAY1205 - Jul 17, 22:20 UTCJul 18, 00:25 UTC2h 5m
2026-07-17 AAY1194 - Jul 17, 19:49 UTCJul 17, 20:40 UTC50m
2026-07-17 AAY2828 - Jul 17, 17:40 UTCJul 17, 18:29 UTC50m
2026-07-17 AAY1191 - Jul 17, 14:35 UTCJul 17, 16:24 UTC1h 50m
2026-07-17 AAY2864 - Jul 17, 11:20 UTCJul 17, 13:20 UTC2h 0m
2026-07-17 AAY1286 SFB → BGR Jul 17, 00:55 UTCJul 17, 01:45 UTC50m
2026-07-16 AAY1254 LCK → SFB Jul 16, 21:19 UTCJul 16, 23:44 UTC2h 25m
2026-07-16 AAY1220 - Jul 16, 17:54 UTCJul 16, 20:15 UTC2h 20m
2026-07-16 AAY2842 - Jul 16, 15:35 UTCJul 16, 16:25 UTC50m
2026-07-16 AAY1289 - Jul 16, 12:49 UTCJul 16, 14:25 UTC1h 35m
2026-07-16 AAY2883 SFB → LEX Jul 16, 10:20 UTCJul 16, 11:50 UTC1h 30m
2026-07-15 AAY3721 - Jul 15, 16:55 UTCJul 15, 19:00 UTC2h 5m
2026-07-15 AAY3720 - Jul 15, 13:30 UTCJul 15, 15:25 UTC1h 55m
2026-07-14 AAY1206 - Jul 14, 03:50 UTCJul 14, 05:00 UTC1h 10m
2026-07-14 AAY2928 - Jul 14, 01:00 UTCJul 14, 02:30 UTC1h 30m
2026-07-13 AAY1311 - Jul 13, 20:50 UTCJul 13, 23:00 UTC2h 10m
2026-07-13 AAY1238 - Jul 13, 17:40 UTCJul 13, 19:40 UTC2h 0m
2026-07-13 AAY1203 - Jul 13, 01:10 UTCJul 13, 03:45 UTC2h 35m

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 N327NV page for operator, model, and routing details .

Mode-S A38991 frequently asked

What is Mode-S code A38991?
A38991 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N327NV.
Where is Mode-S A38991 registered?
Mode-S code A38991 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 A38991 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A38991, octal 50704621, decimal 10,717,585.
What flights does A38991 operate?
Mode-S A38991 has broadcast 20 distinct callsigns, including AAY1445, AAY1443, AAY3109, AAY1454, AAY1448.