sensors Mode-S transponder

A2AF3E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N272PQ · BOMBARDIER Regional Jet CRJ-900 · operated by DELTA AIR LINES INC

Hex
A2AF3E
Octal
50527476
Decimal
10,661,694
Country
US
Tail
N272PQ
Type
CRJ9
Broadcasting now · callsign EDV5059 · 30,625 ft
Flights observed
14
Distinct callsigns
8
Country
US
Last broadcast
1d ago

Current position

A2AF3E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A2AF3E 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 8 distinct

Callsign Airline Flights Last seen
EDV5288 - 4 2026-04-13
EDV5165 - 3 2026-04-13
EDV5376 - 2 2026-04-13
EDV5517 - 1 2026-04-12
EDV5358 - 1 2026-04-13
EDV5298 - 1 2026-04-12
EDV5281 - 1 2026-04-13
EDV4699 Endeavor Air 1 2026-04-13

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-04-13 EDV5281 - Apr 13, 22:35 UTCApr 13, 23:00 UTC25m
2026-04-13 EDV5376 - Apr 13, 21:02 UTCApr 13, 21:39 UTC37m
2026-04-13 EDV5376 - Apr 13, 20:58 UTCApr 13, 21:22 UTC24m
2026-04-13 EDV5288 - Apr 13, 19:45 UTCApr 13, 19:55 UTC10m
2026-04-13 EDV5288 - Apr 13, 19:10 UTCApr 13, 19:58 UTC48m
2026-04-13 EDV5288 - Apr 13, 19:15 UTCApr 13, 19:51 UTC36m
2026-04-13 EDV5288 - Apr 13, 17:29 UTCApr 13, 18:05 UTC36m
2026-04-13 EDV5165 - Apr 13, 15:50 UTCApr 13, 16:10 UTC20m
2026-04-13 EDV5165 - Apr 13, 15:12 UTCApr 13, 16:27 UTC1h 15m
2026-04-13 EDV5165 - Apr 13, 13:05 UTCApr 13, 13:45 UTC40m
2026-04-13 EDV4699 LAN → DTW Apr 13, 11:05 UTCApr 13, 11:45 UTC40m
2026-04-13 EDV5358 - Apr 13, 02:00 UTCApr 13, 02:35 UTC35m
2026-04-12 EDV5517 - Apr 12, 23:55 UTCApr 13, 00:10 UTC15m
2026-04-12 EDV5298 - Apr 12, 17:45 UTCApr 12, 18:55 UTC1h 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 N272PQ page for operator, model, and routing details .

Mode-S A2AF3E frequently asked

What is Mode-S code A2AF3E?
A2AF3E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N272PQ.
Where is Mode-S A2AF3E registered?
Mode-S code A2AF3E 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 A2AF3E broadcasting right now?
Yes. Mode-S A2AF3E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2AF3E, octal 50527476, decimal 10,661,694.
What flights does A2AF3E operate?
Mode-S A2AF3E has broadcast 8 distinct callsigns, including EDV5288, EDV5165, EDV5376, EDV5517, EDV5358.