Apparatus

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sensors Mode-S transponder

A2FA71

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N291NV · AIRBUS A-320 · operated by SUNRISE ASSET MANAGEMENT LLC

Hex
A2FA71
Octal
50575161
Decimal
10,680,945
Country
US
Tail
N291NV
Type
A320
No current signal · last broadcast Jul 25, 13:40 UTC
Flights observed
377
Distinct callsigns
20
Country
US
Last broadcast
Jul 25, 13:40 UTC

Last known position

Most recent position reported by Mode-S A2FA71.

Country allocation

The ICAO 24-bit address A2FA71 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
AAY228 Allegiant Air 12 2026-05-27
AAY234 Allegiant Air 9 2026-05-22
AAY1858 Allegiant Air 9 2026-06-06
AAY241 Allegiant Air 8 2026-05-25
AAY1145 Allegiant Air 7 2026-07-23
AAY2748 Allegiant Air 6 2026-07-24
AAY2730 Allegiant Air 6 2026-07-23
AAY265 Allegiant Air 6 2026-05-18
AAY224 Allegiant Air 6 2026-06-06
AAY2759 - 5 2026-07-23
AAY238 Allegiant Air 5 2026-05-18
AAY218 Allegiant Air 5 2026-06-06
AAY216 Allegiant Air 5 2026-06-01
AAY1874 Allegiant Air 5 2026-05-21
AAY1860 Allegiant Air 5 2026-06-05
AAY1840 Allegiant Air 5 2026-05-17
AAY956 - 4 2026-06-28
AAY2764 Allegiant Air 4 2026-07-23
AAY2749 - 4 2026-07-20
AAY2743 Allegiant Air 4 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 AAY9391 - Jul 25, 13:05 UTCJul 25, 13:40 UTC35m
2026-07-24 AAY2755 - Jul 24, 13:00 UTCJul 24, 14:35 UTC1h 35m
2026-07-24 AAY1101 IND → BOS Jul 24, 10:10 UTCJul 24, 11:40 UTC1h 30m
2026-07-24 AAY2748 PIE → PIT Jul 24, 00:40 UTCJul 24, 02:10 UTC1h 30m
2026-07-23 AAY2730 PIT → PGD Jul 23, 21:55 UTCJul 23, 23:25 UTC1h 30m
2026-07-23 AAY2764 PBI → PIT Jul 23, 19:00 UTCJul 23, 20:40 UTC1h 40m
2026-07-23 AAY1145 PIT → PIE Jul 23, 16:20 UTCJul 23, 17:55 UTC1h 35m
2026-07-23 AAY2759 - Jul 23, 13:10 UTCJul 23, 15:00 UTC1h 50m
2026-07-23 AAY2743 PIT → PIE Jul 23, 10:20 UTCJul 23, 12:05 UTC1h 45m
2026-07-22 AAY1135 PHX → PIT Jul 22, 23:30 UTCJul 23, 01:10 UTC1h 40m
2026-07-22 AAY1124 GSO → PIE Jul 22, 20:35 UTCJul 22, 22:10 UTC1h 35m
2026-07-22 AAY2734 - Jul 22, 17:20 UTCJul 22, 19:20 UTC2h 0m
2026-07-22 AAY1122 MDW → SAV Jul 22, 14:05 UTCJul 22, 16:05 UTC2h 0m
2026-07-21 AAY2751 - Jul 21, 17:20 UTCJul 21, 19:45 UTC2h 25m
2026-07-21 AAY1127 - Jul 21, 14:10 UTCJul 21, 16:10 UTC2h 0m
2026-07-21 AAY1137 PBI → PIT Jul 21, 04:00 UTCJul 21, 05:55 UTC1h 55m
2026-07-21 AAY2760 JAX → BLV Jul 21, 01:05 UTCJul 21, 03:00 UTC1h 55m
2026-07-20 AAY1132 - Jul 20, 19:00 UTCJul 20, 21:10 UTC2h 10m
2026-07-20 AAY2749 - Jul 20, 15:55 UTCJul 20, 17:50 UTC1h 55m
2026-07-20 AAY1102 PIT → VPS Jul 20, 13:15 UTCJul 20, 14:50 UTC1h 35m
2026-07-20 AAY1101 IND → BOS Jul 20, 10:20 UTCJul 20, 11:55 UTC1h 35m
2026-07-20 AAY1142 - Jul 20, 02:20 UTCJul 20, 04:15 UTC1h 55m
2026-07-19 AAY1139 - Jul 19, 23:00 UTCJul 20, 00:55 UTC1h 55m
2026-07-19 AAY1110 - Jul 19, 19:20 UTCJul 19, 21:10 UTC1h 50m
2026-07-19 AAY2749 - Jul 19, 16:10 UTCJul 19, 18:05 UTC1h 55m
2026-07-19 AAY2772 - Jul 19, 13:25 UTCJul 19, 15:10 UTC1h 45m
2026-07-19 AAY1150 PIT → PIE Jul 19, 10:15 UTCJul 19, 12:05 UTC1h 50m
2026-07-19 AAY2744 PIT → PGD Jul 19, 04:05 UTCJul 19, 05:15 UTC1h 10m
2026-07-18 AAY2738 - Jul 18, 18:00 UTCJul 18, 19:10 UTC1h 10m
2026-07-18 AAY1134 PIT → MLB Jul 18, 02:25 UTCJul 18, 04:25 UTC2h 1m
2026-07-17 AAY2753 MYR → IAG Jul 17, 23:10 UTCJul 18, 01:05 UTC1h 55m
2026-07-17 AAY2762 - Jul 17, 19:30 UTCJul 17, 21:55 UTC2h 25m
2026-07-17 AAY2749 - Jul 17, 15:49 UTCJul 17, 18:00 UTC2h 10m
2026-07-17 AAY2755 - Jul 17, 13:05 UTCJul 17, 14:39 UTC1h 35m
2026-07-17 AAY1101 IND → BOS Jul 17, 10:10 UTCJul 17, 11:39 UTC1h 30m
2026-07-17 AAY2748 PIE → PIT Jul 17, 01:09 UTCJul 17, 02:50 UTC1h 40m
2026-07-16 AAY2730 - Jul 16, 21:55 UTCJul 16, 23:40 UTC1h 45m
2026-07-16 AAY2764 - Jul 16, 19:20 UTCJul 16, 20:49 UTC1h 30m
2026-07-16 AAY1145 - Jul 16, 16:15 UTCJul 16, 17:45 UTC1h 30m
2026-07-16 AAY2759 - Jul 16, 13:10 UTCJul 16, 15:05 UTC1h 55m
2026-07-16 AAY2743 - Jul 16, 10:10 UTCJul 16, 11:54 UTC1h 45m
2026-07-13 AAY2732 - Jul 13, 23:30 UTCJul 14, 02:05 UTC2h 35m
2026-07-13 AAY2746 - Jul 13, 19:55 UTCJul 13, 22:15 UTC2h 20m
2026-07-13 AAY1106 JAX → BLV Jul 13, 16:05 UTCJul 13, 18:45 UTC2h 40m
2026-07-13 AAY2727 BLV → JAX Jul 13, 12:10 UTCJul 13, 14:50 UTC2h 40m
2026-07-13 AAY2748 - Jul 13, 02:40 UTCJul 13, 04:15 UTC1h 35m
2026-07-12 AAY2730 - Jul 12, 23:05 UTCJul 13, 00:55 UTC1h 50m
2026-07-12 AAY2728 - Jul 12, 19:55 UTCJul 12, 21:35 UTC1h 40m
2026-07-12 AAY1145 - Jul 12, 17:10 UTCJul 12, 18:45 UTC1h 35m
2026-07-12 AAY2756 - Jul 12, 13:55 UTCJul 12, 15:55 UTC2h 0m

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 N291NV page for operator, model, and routing details .

Mode-S A2FA71 frequently asked

What is Mode-S code A2FA71?
A2FA71 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N291NV.
Where is Mode-S A2FA71 registered?
Mode-S code A2FA71 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 A2FA71 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 13:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2FA71, octal 50575161, decimal 10,680,945.
What flights does A2FA71 operate?
Mode-S A2FA71 has broadcast 20 distinct callsigns, including AAY228, AAY234, AAY1858, AAY241, AAY1145.