sensors Mode-S transponder

A39723

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N330PQ · BOMBARDIER Regional Jet CRJ-900 · operated by DELTA AIR LINES INC

Hex
A39723
Octal
50713443
Decimal
10,721,059
Country
US
Tail
N330PQ
Type
CRJ9
Broadcasting now · callsign EDV5348 · 3,075 ft
Flights observed
9
Distinct callsigns
7
Country
US
Last broadcast
1d ago

Current position

A39723 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A39723 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 7 distinct

Callsign Airline Flights Last seen
EDV5147 - 2 2026-04-13
EDV4963 - 2 2026-04-13
EDV5531 - 1 2026-04-13
EDV5499 - 1 2026-04-13
EDV5283 Endeavor Air 1 2026-04-12
EDV5139 - 1 2026-04-13
EDV4901 Endeavor Air 1 2026-04-13

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-13 EDV4901 ORF → BOS Apr 13, 21:20 UTCApr 14, 00:31 UTC3h 11m
2026-04-13 EDV5499 YUL → LGA Apr 13, 18:50 UTCApr 13, 19:40 UTC50m
2026-04-13 EDV5531 - Apr 13, 16:15 UTCApr 13, 17:10 UTC55m
2026-04-13 EDV5139 YUL → LGA Apr 13, 13:50 UTCApr 13, 14:40 UTC50m
2026-04-13 EDV4963 - Apr 13, 11:55 UTCApr 13, 12:05 UTC10m
2026-04-13 EDV4963 LGA → YUL Apr 13, 11:10 UTCApr 13, 12:05 UTC55m
2026-04-13 EDV5147 - Apr 13, 00:20 UTCApr 13, 01:25 UTC1h 5m
2026-04-13 EDV5147 - Apr 13, 00:14 UTCApr 13, 01:16 UTC1h 2m
2026-04-12 EDV5283 CVG → MSP Apr 12, 18:00 UTCApr 12, 20:10 UTC2h 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 N330PQ page for operator, model, and routing details .

Mode-S A39723 frequently asked

What is Mode-S code A39723?
A39723 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N330PQ.
Where is Mode-S A39723 registered?
Mode-S code A39723 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 A39723 broadcasting right now?
Yes. Mode-S A39723 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A39723, octal 50713443, decimal 10,721,059.
What flights does A39723 operate?
Mode-S A39723 has broadcast 7 distinct callsigns, including EDV5147, EDV4963, EDV5531, EDV5499, EDV5283.