sensors Mode-S transponder

A48E46

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N393DN · AIRBUS A-321 · operated by DELTA AIR LINES INC

Hex
A48E46
Octal
51107106
Decimal
10,784,326
Country
US
Tail
N393DN
Type
A321
No current signal · last broadcast 1d ago
Flights observed
10
Distinct callsigns
5
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A48E46.

Country allocation

The ICAO 24-bit address A48E46 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 5 distinct

Callsign Airline Flights Last seen
DAL1570 - 4 2026-04-13
DAL1903 - 3 2026-04-13
DAL835 Delta Air Lines 1 2026-04-12
DAL315 Delta Air Lines 1 2026-04-13
DAL2546 Delta Air Lines 1 2026-04-13

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-13 DAL2546 CVG → ATL Apr 13, 20:11 UTCApr 13, 22:21 UTC2h 10m
2026-04-13 DAL1570 - Apr 13, 18:50 UTCApr 13, 19:00 UTC10m
2026-04-13 DAL1570 BOS → MCO Apr 13, 16:20 UTCApr 13, 19:00 UTC2h 40m
2026-04-13 DAL1570 BNH → BOS Apr 13, 15:46 UTCApr 13, 18:26 UTC2h 40m
2026-04-13 DAL1570 BNH → BOS Apr 13, 15:56 UTCApr 13, 18:35 UTC2h 39m
2026-04-13 DAL1903 - Apr 13, 12:20 UTCApr 13, 14:15 UTC1h 55m
2026-04-13 DAL1903 - Apr 13, 11:55 UTCApr 13, 14:15 UTC2h 20m
2026-04-13 DAL1903 - Apr 13, 11:13 UTCApr 13, 14:09 UTC2h 56m
2026-04-13 DAL315 JFK → SLC Apr 13, 00:20 UTCApr 13, 02:55 UTC2h 35m
2026-04-12 DAL835 LGA → RSW Apr 12, 17:15 UTCApr 12, 18:55 UTC1h 40m

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 N393DN page for operator, model, and routing details .

Mode-S A48E46 frequently asked

What is Mode-S code A48E46?
A48E46 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N393DN.
Where is Mode-S A48E46 registered?
Mode-S code A48E46 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 A48E46 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A48E46, octal 51107106, decimal 10,784,326.
What flights does A48E46 operate?
Mode-S A48E46 has broadcast 5 distinct callsigns, including DAL1570, DAL1903, DAL835, DAL315, DAL2546.