Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A65449

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N507DN · AIRBUS A-350-900 · operated by DELTA AIR LINES INC

Hex
A65449
Octal
51452111
Decimal
10,900,553
Country
US
Tail
N507DN
Type
A359
No current signal · last broadcast Jul 26, 20:15 UTC
Flights observed
249
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:15 UTC

Last known position

Most recent position reported by Mode-S A65449.

Country allocation

The ICAO 24-bit address A65449 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 20 distinct

Callsign Airline Flights Last seen
DAL389 Delta Air Lines 37 2026-07-25
DAL281 Delta Air Lines 24 2026-07-21
DAL69 Delta Air Lines 22 2026-07-19
DAL68 Delta Air Lines 21 2026-07-20
DAL280 Delta Air Lines 21 2026-07-26
DAL388 Delta Air Lines 16 2026-07-23
DAL275 Delta Air Lines 16 2026-07-23
DAL197 - 16 2026-07-20
DAL196 Delta Air Lines 13 2026-07-21
DAL274 Delta Air Lines 12 2026-07-24
DAL172 Delta Air Lines 10 2026-05-25
DAL173 Delta Air Lines 9 2026-05-26
DAL167 Delta Air Lines 5 2026-05-22
DAL95 - 4 2026-07-10
DAL166 Delta Air Lines 4 2026-05-23
DAL298 Delta Air Lines 3 2026-06-11
DAL96 - 2 2026-07-09
DAL299 Delta Air Lines 2 2026-06-11
DAL1646 Delta Air Lines 2 2026-04-14
DAL82 Delta Air Lines 1 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL280 SIN → ATL Jul 26, 09:50 UTCJul 26, 20:20 UTC10h 30m
2026-07-25 DAL389 JFK → DEN Jul 25, 22:20 UTCJul 26, 20:15 UTC21h 56m
2026-07-25 DAL389 JFK → DEN Jul 25, 20:20 UTCJul 26, 20:15 UTC23h 56m
2026-07-25 DAL389 JFK → DEN Jul 25, 18:20 UTCJul 26, 12:30 UTC18h 11m
2026-07-25 DAL389 JFK → DEN Jul 25, 16:35 UTCJul 26, 06:35 UTC14h 1m
2026-07-24 DAL274 ATL → CDG Jul 24, 10:30 UTCJul 24, 21:55 UTC11h 25m
2026-07-23 DAL275 DTW → HND Jul 23, 18:25 UTCJul 24, 07:25 UTC13h 0m
2026-07-23 DAL275 DTW → HND Jul 23, 18:22 UTCJul 24, 07:30 UTC13h 8m
2026-07-23 DAL388 SFO → JFK Jul 23, 03:15 UTCJul 23, 15:05 UTC11h 50m
2026-07-22 DAL388 SFO → JFK Jul 22, 10:20 UTCJul 23, 10:15 UTC23h 55m
2026-07-21 DAL281 SEA → PVG Jul 21, 23:50 UTCJul 22, 11:15 UTC11h 25m
2026-07-21 DAL196 ICN → SEA Jul 21, 10:25 UTCJul 21, 20:40 UTC10h 15m
2026-07-21 DAL196 ICN → SEA Jul 21, 10:24 UTCJul 21, 20:35 UTC10h 11m
2026-07-20 DAL197 - Jul 20, 20:25 UTCJul 21, 07:35 UTC11h 9m
2026-07-20 DAL68 TPE → SEA Jul 20, 01:40 UTCJul 20, 12:45 UTC11h 5m
2026-07-20 DAL68 TPE → SEA Jul 20, 01:39 UTCJul 20, 12:30 UTC10h 51m
2026-07-19 DAL69 SEA → TPE Jul 19, 11:20 UTCJul 19, 11:45 UTC25m
2026-07-19 DAL69 SEA → TPE Jul 19, 00:00 UTCJul 19, 10:10 UTC10h 10m
2026-07-18 DAL69 SEA → TPE Jul 18, 23:59 UTCJul 19, 11:52 UTC11h 53m
2026-07-18 DAL280 SIN → ATL Jul 18, 10:45 UTCJul 18, 12:30 UTC1h 45m
2026-07-18 DAL280 SIN → ATL Jul 18, 09:53 UTCJul 18, 20:39 UTC10h 46m
2026-07-17 DAL389 - Jul 17, 21:55 UTCJul 18, 20:15 UTC22h 21m
2026-07-17 DAL389 - Jul 17, 18:19 UTCJul 18, 12:30 UTC18h 11m
2026-07-17 DAL389 - Jul 17, 16:34 UTCJul 18, 05:40 UTC13h 6m
2026-07-17 DAL389 DTW → PVG Jul 17, 16:30 UTCJul 18, 06:26 UTC13h 56m
2026-07-16 DAL274 - Jul 16, 09:45 UTCJul 16, 18:15 UTC8h 30m
2026-07-15 DAL275 - Jul 15, 18:15 UTCJul 16, 06:35 UTC12h 20m
2026-07-15 DAL275 DTW → HND Jul 15, 18:13 UTCJul 16, 06:42 UTC12h 29m
2026-07-15 DAL388 - Jul 15, 03:10 UTCJul 15, 15:45 UTC12h 35m
2026-07-14 DAL281 - Jul 14, 08:35 UTCJul 15, 04:45 UTC20h 9m
2026-07-13 DAL281 - Jul 13, 23:50 UTCJul 14, 10:15 UTC10h 25m
2026-07-13 DAL281 SEA → PVG Jul 13, 23:48 UTCJul 14, 10:57 UTC11h 9m
2026-07-13 DAL280 - Jul 13, 10:40 UTCJul 13, 12:15 UTC1h 35m
2026-07-13 DAL280 PVG → SEA Jul 13, 09:55 UTCJul 13, 20:33 UTC10h 38m
2026-07-13 DAL280 - Jul 13, 04:00 UTCJul 13, 20:35 UTC16h 35m
2026-07-12 DAL280 - Jul 12, 22:20 UTCJul 13, 20:35 UTC22h 15m
2026-07-12 DAL389 - Jul 12, 21:50 UTCJul 13, 20:15 UTC22h 25m
2026-07-12 DAL389 - Jul 12, 18:20 UTCJul 13, 12:35 UTC18h 15m
2026-07-12 DAL389 - Jul 12, 16:30 UTCJul 13, 05:31 UTC13h 0m
2026-07-12 DAL389 DTW → PVG Jul 12, 16:26 UTCJul 13, 06:13 UTC13h 47m
2026-07-11 DAL274 - Jul 11, 09:50 UTCJul 11, 22:35 UTC12h 45m
2026-07-10 DAL275 DTW → HND Jul 10, 18:24 UTCJul 11, 06:49 UTC12h 25m
2026-07-10 DAL275 - Jul 10, 18:25 UTCJul 11, 06:40 UTC12h 15m
2026-07-10 DAL95 - Jul 10, 07:35 UTCJul 10, 08:15 UTC40m
2026-07-10 DAL95 CDG → DTW Jul 10, 07:30 UTCJul 10, 15:22 UTC7h 52m
2026-07-09 DAL96 - Jul 9, 21:25 UTCJul 10, 04:25 UTC7h 0m
2026-07-09 DAL388 - Jul 9, 03:55 UTCJul 9, 16:20 UTC12h 25m
2026-07-08 DAL281 SEA → PVG Jul 8, 00:05 UTCJul 8, 11:22 UTC11h 17m
2026-07-08 DAL281 - Jul 8, 00:05 UTCJul 8, 10:40 UTC10h 35m
2026-07-07 DAL196 ICN → SEA Jul 7, 10:20 UTCJul 7, 19:50 UTC9h 30m

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 N507DN page for operator, model, and routing details .

Mode-S A65449 frequently asked

What is Mode-S code A65449?
A65449 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N507DN.
Where is Mode-S A65449 registered?
Mode-S code A65449 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 A65449 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A65449, octal 51452111, decimal 10,900,553.
What flights does A65449 operate?
Mode-S A65449 has broadcast 20 distinct callsigns, including DAL389, DAL281, DAL69, DAL68, DAL280.