Apparatus

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sensors Mode-S transponder

AD675D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N963AT · BOEING 717-200 · operated by DELTA AIR LINES INC

Hex
AD675D
Octal
53263535
Decimal
11,364,189
Country
US
Tail
N963AT
Type
B712
No current signal · last broadcast 2h ago
Flights observed
377
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S AD675D.

Country allocation

The ICAO 24-bit address AD675D 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
DAL2220 - 8 2026-07-13
DAL1292 - 8 2026-06-29
DAL441 - 7 2026-06-30
DAL2718 Delta Air Lines 7 2026-06-16
DAL2157 - 7 2026-06-20
DAL1640 - 7 2026-07-13
DAL2832 - 6 2026-07-09
DAL2020 - 6 2026-06-21
DAL1126 - 6 2026-06-20
DAL376 - 5 2026-07-13
DAL3137 Delta Air Lines 5 2026-07-05
DAL3133 - 5 2026-07-06
DAL3108 Delta Air Lines 5 2026-06-07
DAL2712 - 5 2026-07-13
DAL2539 Delta Air Lines 5 2026-06-11
DAL2037 - 5 2026-06-30
DAL3166 Delta Air Lines 4 2026-07-03
DAL3142 - 4 2026-06-17
DAL3127 - 4 2026-06-22
DAL3116 - 4 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL2144 - Jul 14, 02:15 UTCJul 14, 03:45 UTC1h 30m
2026-07-13 DAL2220 - Jul 13, 23:30 UTCJul 14, 00:25 UTC55m
2026-07-13 DAL2220 ATL → GNV Jul 13, 21:55 UTCJul 13, 22:45 UTC50m
2026-07-13 DAL1640 - Jul 13, 20:00 UTCJul 13, 20:55 UTC55m
2026-07-13 DAL1640 ATL → PNS Jul 13, 17:10 UTCJul 13, 18:00 UTC50m
2026-07-13 DAL376 - Jul 13, 14:35 UTCJul 13, 15:30 UTC55m
2026-07-13 DAL376 ILM → ATL Jul 13, 14:30 UTCJul 13, 15:29 UTC59m
2026-07-13 DAL376 - Jul 13, 12:20 UTCJul 13, 13:10 UTC50m
2026-07-13 DAL2712 - Jul 13, 09:50 UTCJul 13, 10:20 UTC30m
2026-07-13 DAL2712 AVL → ATL Jul 13, 09:45 UTCJul 13, 10:17 UTC32m
2026-07-13 DAL3116 - Jul 13, 05:15 UTCJul 13, 06:01 UTC45m
2026-07-13 DAL2364 - Jul 13, 01:10 UTCJul 13, 02:55 UTC1h 45m
2026-07-13 DAL2364 OMA → ATL Jul 13, 01:06 UTCJul 13, 02:54 UTC1h 48m
2026-07-12 DAL2364 - Jul 12, 22:15 UTCJul 13, 00:05 UTC1h 50m
2026-07-12 DAL2417 - Jul 12, 18:01 UTCJul 12, 20:10 UTC2h 10m
2026-07-12 DAL2417 ATL → MDW Jul 12, 15:15 UTCJul 12, 16:40 UTC1h 25m
2026-07-12 DAL1625 - Jul 12, 12:30 UTCJul 12, 13:20 UTC50m
2026-07-12 DAL2939 - Jul 12, 02:40 UTCJul 12, 03:15 UTC35m
2026-07-12 DAL2939 ATL → MEM Jul 12, 02:39 UTCJul 12, 03:35 UTC56m
2026-07-12 DAL1248 - Jul 12, 00:05 UTCJul 12, 00:30 UTC25m
2026-07-09 DAL3042 - Jul 9, 23:20 UTCJul 9, 23:50 UTC30m
2026-07-09 DAL2832 - Jul 9, 21:25 UTCJul 9, 22:10 UTC45m
2026-07-09 DAL2832 ATL → VPS Jul 9, 18:00 UTCJul 9, 18:40 UTC40m
2026-07-09 DAL1286 - Jul 9, 16:10 UTCJul 9, 16:55 UTC45m
2026-07-09 DAL1286 - Jul 9, 13:50 UTCJul 9, 14:30 UTC40m
2026-07-08 DAL3057 - Jul 8, 20:15 UTCJul 8, 20:45 UTC30m
2026-07-08 DAL3057 ATL → CHA Jul 8, 18:35 UTCJul 8, 19:05 UTC30m
2026-07-08 DAL2048 - Jul 8, 16:35 UTCJul 8, 17:15 UTC40m
2026-07-08 DAL2048 - Jul 8, 14:35 UTCJul 8, 15:20 UTC45m
2026-07-08 DAL3009 - Jul 8, 12:10 UTCJul 8, 12:45 UTC35m
2026-07-08 DAL3009 HSV → ATL Jul 8, 12:09 UTCJul 8, 12:37 UTC28m
2026-07-08 DAL3022 ATL → HSV Jul 8, 03:10 UTCJul 8, 03:45 UTC35m
2026-07-08 DAL1959 - Jul 8, 00:10 UTCJul 8, 01:00 UTC50m
2026-07-07 DAL1959 - Jul 7, 22:20 UTCJul 7, 23:10 UTC50m
2026-07-07 DAL2832 - Jul 7, 20:15 UTCJul 7, 21:00 UTC45m
2026-07-07 DAL2832 - Jul 7, 18:00 UTCJul 7, 18:40 UTC40m
2026-07-07 DAL1687 - Jul 7, 15:55 UTCJul 7, 16:55 UTC1h 0m
2026-07-07 DAL1687 BTR → ATL Jul 7, 15:51 UTCJul 7, 16:54 UTC1h 3m
2026-07-07 DAL1687 ATL → BTR Jul 7, 13:25 UTCJul 7, 14:35 UTC1h 10m
2026-07-07 DAL1255 - Jul 7, 10:20 UTCJul 7, 11:45 UTC1h 25m
2026-07-07 DAL1255 MDT → ATL Jul 7, 10:14 UTCJul 7, 11:41 UTC1h 27m
2026-07-07 DAL1283 - Jul 7, 02:10 UTCJul 7, 03:30 UTC1h 20m
2026-07-07 DAL1283 ATL → MDT Jul 7, 02:07 UTCJul 7, 03:33 UTC1h 26m
2026-07-07 DAL1021 - Jul 7, 00:10 UTCJul 7, 00:40 UTC30m
2026-07-06 DAL1021 - Jul 6, 22:25 UTCJul 6, 22:55 UTC30m
2026-07-06 DAL3133 - Jul 6, 20:10 UTCJul 6, 20:55 UTC45m
2026-07-06 DAL3133 GNV → ATL Jul 6, 20:06 UTCJul 6, 20:53 UTC47m
2026-07-06 DAL3133 - Jul 6, 18:15 UTCJul 6, 19:05 UTC50m
2026-07-06 DAL1155 BNA → ATL Jul 6, 16:30 UTCJul 6, 17:15 UTC45m
2026-07-06 DAL1155 BNA → ATL Jul 6, 16:28 UTCJul 6, 17:03 UTC35m

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 N963AT page for operator, model, and routing details .

Mode-S AD675D frequently asked

What is Mode-S code AD675D?
AD675D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N963AT.
Where is Mode-S AD675D registered?
Mode-S code AD675D 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 AD675D broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD675D, octal 53263535, decimal 11,364,189.
What flights does AD675D operate?
Mode-S AD675D has broadcast 20 distinct callsigns, including DAL2220, DAL1292, DAL441, DAL2718, DAL2157.