Apparatus

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sensors Mode-S transponder

A2679A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N254NV · AIRBUS A-320 · operated by ALLEGIANT AIR LLC

Hex
A2679A
Octal
50463632
Decimal
10,643,354
Country
US
Tail
N254NV
Type
A320
Broadcasting now · callsign AAY462 · 38,000 ft
Flights observed
369
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Current position

A2679A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A2679A 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
AAY562 Allegiant Air 6 2026-05-31
AAY561 Allegiant Air 5 2026-06-02
AAY3205 Allegiant Air 5 2026-04-27
AAY1569 - 5 2026-04-17
AAY583 Allegiant Air 4 2026-05-30
AAY579 Allegiant Air 4 2026-05-30
AAY571 Allegiant Air 4 2026-05-31
AAY552 Allegiant Air 4 2026-05-31
AAY547 Allegiant Air 4 2026-05-19
AAY3151 - 4 2026-06-30
AAY2967 Allegiant Air 4 2026-06-14
AAY1575 Allegiant Air 4 2026-04-17
AAY581 Allegiant Air 3 2026-06-06
AAY573 Allegiant Air 3 2026-06-05
AAY570 Allegiant Air 3 2026-05-15
AAY567 Allegiant Air 3 2026-06-01
AAY566 Allegiant Air 3 2026-05-25
AAY558 Allegiant Air 3 2026-06-03
AAY546 Allegiant Air 3 2026-06-04
AAY544 Allegiant Air 3 2026-05-31

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAY471 PIE → DSM Jul 26, 20:35 UTCJul 26, 22:15 UTC1h 40m
2026-07-26 AAY456 FLL → DSM Jul 26, 16:15 UTCJul 26, 19:00 UTC2h 45m
2026-07-26 AAY463 PIE → DSM Jul 26, 12:35 UTCJul 26, 15:05 UTC2h 30m
2026-07-25 AAY8012 CVG → PHF Jul 25, 20:00 UTCJul 25, 21:20 UTC1h 20m
2026-07-25 AAY8011 IND → CVG Jul 25, 16:50 UTCJul 25, 19:10 UTC2h 20m
2026-07-25 AAY8010 GRK → IND Jul 25, 12:20 UTCJul 25, 14:05 UTC1h 45m
2026-07-25 AAY468 DSM → AZA Jul 25, 01:20 UTCJul 25, 04:00 UTC2h 40m
2026-07-24 AAY2072 PDX → DSM Jul 24, 21:10 UTCJul 24, 23:40 UTC2h 30m
2026-07-24 AAY480 PIE → DSM Jul 24, 17:35 UTCJul 24, 20:00 UTC2h 25m
2026-07-24 AAY457 DSM → PIE Jul 24, 13:35 UTCJul 24, 16:05 UTC2h 30m
2026-07-24 AAY434 DSM → FLL Jul 24, 01:15 UTCJul 24, 03:35 UTC2h 20m
2026-07-23 AAY433 DSM → LAS Jul 23, 22:05 UTCJul 23, 23:55 UTC1h 50m
2026-07-23 AAY2055 LAS → DSM Jul 23, 16:30 UTCJul 23, 19:25 UTC2h 55m
2026-07-23 AAY474 SNA → DSM Jul 23, 12:15 UTCJul 23, 15:20 UTC3h 5m
2026-07-22 AAY468 DSM → AZA Jul 22, 18:45 UTCJul 22, 21:15 UTC2h 30m
2026-07-22 AAY473 SNA → DSM Jul 22, 15:00 UTCJul 22, 17:20 UTC2h 20m
2026-07-21 AAY468 PIE → DSM Jul 21, 01:10 UTCJul 21, 04:05 UTC2h 55m
2026-07-20 AAY2072 PDX → DSM Jul 20, 21:45 UTCJul 21, 00:15 UTC2h 29m
2026-07-20 AAY480 PIE → DSM Jul 20, 17:50 UTCJul 20, 20:15 UTC2h 25m
2026-07-20 AAY3531 SNA → PSC Jul 20, 02:05 UTCJul 20, 03:05 UTC1h 0m
2026-07-19 AAY3533 SNA → AZA Jul 19, 21:55 UTCJul 20, 00:05 UTC2h 10m
2026-07-19 AAY3532 PSC → SNA Jul 19, 18:50 UTCJul 19, 20:40 UTC1h 50m
2026-07-19 AAY3530 AZA → LSE Jul 19, 16:25 UTCJul 19, 17:25 UTC1h 0m
2026-07-19 AAY727 AZA → MSO Jul 19, 02:30 UTCJul 19, 04:55 UTC2h 25m
2026-07-18 AAY746 AZA → PSC Jul 18, 22:50 UTCJul 19, 01:25 UTC2h 35m
2026-07-18 AAY722 SBN → AZA Jul 18, 18:50 UTCJul 18, 21:45 UTC2h 55m
2026-07-18 AAY714 AZA → SBN Jul 18, 14:40 UTCJul 18, 17:40 UTC3h 0m
2026-07-18 AAY2266 AZA → CVG Jul 18, 05:45 UTCJul 18, 07:55 UTC2h 10m
2026-07-18 AAY681 AZA → PSC Jul 18, 01:05 UTCJul 18, 03:00 UTC1h 56m
2026-07-17 AAY638 AZA → EUG Jul 17, 18:50 UTCJul 17, 23:55 UTC5h 5m
2026-07-17 AAY2305 SBN → AZA Jul 17, 16:04 UTCJul 17, 17:40 UTC1h 35m
2026-07-17 AAY2268 FAR → AZA Jul 17, 13:15 UTCJul 17, 14:35 UTC1h 20m
2026-07-17 AAY674 - Jul 17, 03:39 UTCJul 17, 05:50 UTC2h 10m
2026-07-17 AAY674 - Jul 17, 02:15 UTCJul 17, 02:34 UTC20m
2026-07-16 AAY691 AZA → OMA Jul 16, 21:25 UTCJul 16, 23:44 UTC2h 20m
2026-07-16 AAY743 - Jul 16, 17:30 UTCJul 16, 19:50 UTC2h 20m
2026-07-16 AAY668 - Jul 16, 14:10 UTCJul 16, 16:09 UTC2h 0m
2026-07-16 AAY2300 FSD → AZA Jul 16, 02:15 UTCJul 16, 04:45 UTC2h 30m
2026-07-15 AAY654 AZA → FSD Jul 15, 22:45 UTCJul 16, 01:05 UTC2h 20m
2026-07-15 AAY2306 - Jul 15, 18:45 UTCJul 15, 20:40 UTC1h 55m
2026-07-15 AAY642 - Jul 15, 15:35 UTCJul 15, 17:30 UTC1h 55m
2026-07-14 AAY647 - Jul 14, 21:20 UTCJul 14, 23:30 UTC2h 9m
2026-07-14 AAY646 - Jul 14, 18:05 UTCJul 14, 19:45 UTC1h 40m
2026-07-14 AAY754 - Jul 14, 03:20 UTCJul 14, 05:35 UTC2h 15m
2026-07-13 AAY723 AZA → SGF Jul 13, 23:20 UTCJul 14, 02:10 UTC2h 50m
2026-07-13 AAY712 - Jul 13, 18:35 UTCJul 13, 21:35 UTC3h 0m
2026-07-13 AAY661 - Jul 13, 14:10 UTCJul 13, 17:20 UTC3h 10m
2026-07-13 AAY3531 - Jul 13, 01:50 UTCJul 13, 03:05 UTC1h 15m
2026-07-12 AAY3533 - Jul 12, 22:35 UTCJul 13, 00:50 UTC2h 15m
2026-07-12 AAY3532 - Jul 12, 19:35 UTCJul 12, 21:25 UTC1h 50m

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 N254NV page for operator, model, and routing details .

Mode-S A2679A frequently asked

What is Mode-S code A2679A?
A2679A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N254NV.
Where is Mode-S A2679A registered?
Mode-S code A2679A 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 A2679A broadcasting right now?
Yes. Mode-S A2679A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2679A, octal 50463632, decimal 10,643,354.
What flights does A2679A operate?
Mode-S A2679A has broadcast 20 distinct callsigns, including AAY562, AAY561, AAY3205, AAY1569, AAY583.