sensors Mode-S transponder

A1E241

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N220NV · AIRBUS A-320 · operated by SUNRISE ASSET MANAGEMENT LLC

Hex
A1E241
Octal
50361101
Decimal
10,609,217
Country
US
Tail
N220NV
Type
A320
No current signal · last broadcast 15h ago
Flights observed
14
Distinct callsigns
10
Country
US
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S A1E241.

Country allocation

The ICAO 24-bit address A1E241 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 10 distinct

Callsign Airline Flights Last seen
AAY3034 Allegiant Air 2 2026-04-17
AAY2879 Allegiant Air 2 2026-04-16
AAY1857 Allegiant Air 2 2026-04-18
AAY1323 Allegiant Air 2 2026-04-16
AAY9201 Allegiant Air 1 2026-04-17
AAY9200 Allegiant Air 1 2026-04-17
AAY3027 Allegiant Air 1 2026-04-17
AAY2910 Allegiant Air 1 2026-04-16
AAY1869 Allegiant Air 1 2026-04-18
AAY1195 Allegiant Air 1 2026-04-16

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-04-18 AAY1869 ALB → PIE Apr 18, 03:25 UTCApr 18, 04:15 UTC50m
2026-04-18 AAY1857 PIE → AVL Apr 18, 01:25 UTCApr 18, 02:15 UTC50m
2026-04-18 AAY1857 PIE → AVL Apr 18, 01:10 UTCApr 18, 01:20 UTC10m
2026-04-17 AAY9201 PIT → CVG Apr 17, 18:25 UTCApr 17, 18:55 UTC30m
2026-04-17 AAY3027 TYS → MDW Apr 17, 15:45 UTCApr 17, 17:15 UTC1h 30m
2026-04-17 AAY3034 PIE → TYS Apr 17, 13:20 UTCApr 17, 14:20 UTC1h 0m
2026-04-17 AAY3034 PIE → TYS Apr 17, 12:35 UTCApr 17, 13:15 UTC40m
2026-04-17 AAY9200 CVG → ABE Apr 17, 10:35 UTCApr 17, 11:00 UTC25m
2026-04-16 AAY1323 SFB → PSM Apr 16, 23:20 UTCApr 17, 00:20 UTC1h 0m
2026-04-16 AAY1323 SFB → PSM Apr 16, 22:45 UTCApr 16, 23:10 UTC25m
2026-04-16 AAY2910 EVV → SFB Apr 16, 20:00 UTCApr 16, 21:10 UTC1h 10m
2026-04-16 AAY1195 SFB → ALB Apr 16, 17:15 UTCApr 16, 18:40 UTC1h 25m
2026-04-16 AAY2879 SFB → ROC Apr 16, 15:15 UTCApr 16, 16:00 UTC45m
2026-04-16 AAY2879 SFB → ROC Apr 16, 14:25 UTCApr 16, 15:10 UTC45m

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 N220NV page for operator, model, and routing details .

Mode-S A1E241 frequently asked

What is Mode-S code A1E241?
A1E241 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N220NV.
Where is Mode-S A1E241 registered?
Mode-S code A1E241 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 A1E241 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1E241, octal 50361101, decimal 10,609,217.
What flights does A1E241 operate?
Mode-S A1E241 has broadcast 10 distinct callsigns, including AAY3034, AAY2879, AAY1857, AAY1323, AAY9201.