sensors Mode-S transponder

A3DB5E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N348DN · AIRBUS A-321 · operated by BANK OF UTAH TRUSTEE

Hex
A3DB5E
Octal
50755536
Decimal
10,738,526
Country
US
Tail
N348DN
Type
A321
No current signal · last broadcast 12h ago
Flights observed
11
Distinct callsigns
7
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S A3DB5E.

Country allocation

The ICAO 24-bit address A3DB5E 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
DAL1579 - 3 2026-04-13
DAL1991 - 2 2026-04-13
DAL1495 - 2 2026-04-13
DAL1916 - 1 2026-04-12
DAL1394 - 1 2026-04-13
DAL1376 Delta Air Lines 1 2026-04-14
DAL1058 - 1 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 DAL1376 SEA → JFK Apr 14, 10:15 UTCApr 14, 11:36 UTC1h 21m
2026-04-13 DAL1058 - Apr 13, 23:05 UTCApr 13, 23:45 UTC40m
2026-04-13 DAL1579 - Apr 13, 19:50 UTCApr 13, 21:05 UTC1h 15m
2026-04-13 DAL1579 - Apr 13, 19:41 UTCApr 13, 21:10 UTC1h 29m
2026-04-13 DAL1579 - Apr 13, 16:40 UTCApr 13, 18:10 UTC1h 30m
2026-04-13 DAL1394 - Apr 13, 13:33 UTCApr 13, 14:53 UTC1h 20m
2026-04-13 DAL1495 - Apr 13, 03:55 UTCApr 13, 04:25 UTC30m
2026-04-13 DAL1495 - Apr 13, 03:00 UTCApr 13, 04:15 UTC1h 15m
2026-04-13 DAL1991 - Apr 13, 00:20 UTCApr 13, 00:35 UTC15m
2026-04-12 DAL1991 - Apr 12, 23:55 UTCApr 13, 00:35 UTC40m
2026-04-12 DAL1916 - Apr 12, 16:25 UTCApr 12, 19:22 UTC2h 57m

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 N348DN page for operator, model, and routing details .

Mode-S A3DB5E frequently asked

What is Mode-S code A3DB5E?
A3DB5E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N348DN.
Where is Mode-S A3DB5E registered?
Mode-S code A3DB5E 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 A3DB5E broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3DB5E, octal 50755536, decimal 10,738,526.
What flights does A3DB5E operate?
Mode-S A3DB5E has broadcast 7 distinct callsigns, including DAL1579, DAL1991, DAL1495, DAL1916, DAL1394.