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
Broadcasting now · callsign DAL2676 · 34,975 ft
Flights observed
459
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Current position

AD675D is currently broadcasting. Map zoomed to live position.

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
DAL441 - 9 2026-07-16
DAL2539 Delta Air Lines 9 2026-07-26
DAL2220 - 8 2026-07-13
DAL1292 - 8 2026-06-29
DAL3133 Delta Air Lines 7 2026-07-19
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
DAL516 Delta Air Lines 5 2026-07-26
DAL376 - 5 2026-07-13
DAL3137 Delta Air Lines 5 2026-07-05
DAL3108 Delta Air Lines 5 2026-06-07
DAL3051 Delta Air Lines 5 2026-07-25
DAL2712 - 5 2026-07-13
DAL2044 Delta Air Lines 5 2026-07-23
DAL2037 - 5 2026-06-30
DAL1132 Delta Air Lines 5 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2539 FLL → CVG Jul 26, 20:30 UTCJul 26, 21:15 UTC45m
2026-07-26 DAL2539 FLL → CVG Jul 26, 18:40 UTCJul 26, 19:30 UTC50m
2026-07-26 DAL3064 MCI → ATL Jul 26, 16:40 UTCJul 26, 17:25 UTC45m
2026-07-26 DAL3064 MCI → ATL Jul 26, 14:55 UTCJul 26, 15:30 UTC35m
2026-07-26 DAL516 LAX → JFK Jul 26, 11:10 UTCJul 26, 12:55 UTC1h 45m
2026-07-26 DAL516 LAX → JFK Jul 26, 11:09 UTCJul 26, 12:49 UTC1h 40m
2026-07-26 DAL1104 JFK → LAS Jul 26, 01:50 UTCJul 26, 03:30 UTC1h 40m
2026-07-25 DAL3043 ATL → MLB Jul 25, 22:40 UTCJul 25, 23:55 UTC1h 15m
2026-07-25 DAL3043 ATL → MLB Jul 25, 20:25 UTCJul 25, 21:35 UTC1h 10m
2026-07-25 DAL1182 DFW → BOS Jul 25, 18:25 UTCJul 25, 19:05 UTC40m
2026-07-25 DAL1182 DFW → BOS Jul 25, 18:22 UTCJul 25, 18:56 UTC34m
2026-07-25 DAL1182 DFW → BOS Jul 25, 16:35 UTCJul 25, 17:05 UTC30m
2026-07-25 DAL3051 ATL → VPS Jul 25, 14:30 UTCJul 25, 15:15 UTC45m
2026-07-25 DAL3051 ATL → VPS Jul 25, 12:30 UTCJul 25, 13:15 UTC45m
2026-07-25 DAL1666 IAH → LGA Jul 25, 10:20 UTCJul 25, 11:10 UTC50m
2026-07-25 DAL2001 ATL → CMH Jul 25, 02:55 UTCJul 25, 03:55 UTC1h 0m
2026-07-25 DAL1093 SFO → SLC Jul 25, 00:55 UTCJul 25, 01:45 UTC50m
2026-07-25 DAL1093 SFO → SLC Jul 25, 00:49 UTCJul 25, 01:43 UTC54m
2026-07-24 DAL1093 SFO → SLC Jul 24, 23:10 UTCJul 24, 23:55 UTC45m
2026-07-24 DAL1125 SEA → ORD Jul 24, 19:00 UTCJul 24, 21:30 UTC2h 30m
2026-07-24 DAL1125 SEA → ORD Jul 24, 15:30 UTCJul 24, 17:35 UTC2h 5m
2026-07-24 DAL3183 JAN → ATL Jul 24, 13:10 UTCJul 24, 14:00 UTC50m
2026-07-24 DAL3084 ATL → JAN Jul 24, 00:30 UTCJul 24, 01:10 UTC40m
2026-07-23 DAL3094 - Jul 23, 22:35 UTCJul 23, 23:20 UTC45m
2026-07-23 DAL3094 - Jul 23, 20:30 UTCJul 23, 21:10 UTC40m
2026-07-23 DAL2044 ATL → BDL Jul 23, 17:35 UTCJul 23, 19:25 UTC1h 50m
2026-07-23 DAL2044 ATL → BDL Jul 23, 14:20 UTCJul 23, 16:20 UTC2h 0m
2026-07-23 DAL1136 MIA → LGA Jul 23, 10:30 UTCJul 23, 12:15 UTC1h 45m
2026-07-22 DAL2707 LGA → ATL Jul 22, 23:40 UTCJul 23, 01:30 UTC1h 50m
2026-07-22 DAL2707 LGA → ATL Jul 22, 23:38 UTCJul 23, 01:31 UTC1h 53m
2026-07-22 DAL3163 BWI → DTW Jul 22, 21:10 UTCJul 22, 21:45 UTC35m
2026-07-22 DAL3163 BWI → DTW Jul 22, 19:40 UTCJul 22, 20:05 UTC25m
2026-07-22 DAL3040 ATL → LIT Jul 22, 17:00 UTCJul 22, 18:10 UTC1h 10m
2026-07-22 DAL3040 ATL → LIT Jul 22, 14:45 UTCJul 22, 15:45 UTC1h 0m
2026-07-22 DAL3155 AUS → DTW Jul 22, 11:40 UTCJul 22, 12:35 UTC55m
2026-07-22 DAL3178 ATL → GPT Jul 22, 02:05 UTCJul 22, 02:50 UTC45m
2026-07-22 DAL1132 BOS → ATL Jul 22, 00:05 UTCJul 22, 00:35 UTC30m
2026-07-21 DAL1132 BOS → ATL Jul 21, 22:15 UTCJul 21, 22:40 UTC25m
2026-07-21 DAL2094 - Jul 21, 19:25 UTCJul 21, 21:00 UTC1h 35m
2026-07-21 DAL2094 ATL → DSM Jul 21, 16:30 UTCJul 21, 18:10 UTC1h 40m
2026-07-21 DAL3090 ATL → STL Jul 21, 14:30 UTCJul 21, 15:15 UTC45m
2026-07-21 DAL3090 ATL → STL Jul 21, 12:20 UTCJul 21, 13:05 UTC45m
2026-07-20 DAL3096 ATL → LEX Jul 20, 17:15 UTCJul 20, 18:15 UTC1h 0m
2026-07-20 DAL3096 ATL → LEX Jul 20, 15:25 UTCJul 20, 16:10 UTC45m
2026-07-20 DAL1158 OKC → ATL Jul 20, 12:10 UTCJul 20, 13:55 UTC1h 45m
2026-07-20 DAL2784 ORD → LGA Jul 20, 01:20 UTCJul 20, 03:00 UTC1h 40m
2026-07-19 DAL3133 GNV → ATL Jul 19, 20:30 UTCJul 19, 21:20 UTC50m
2026-07-19 DAL3133 GNV → ATL Jul 19, 17:55 UTCJul 19, 18:40 UTC45m
2026-07-19 DAL1622 - Jul 19, 16:10 UTCJul 19, 16:40 UTC30m
2026-07-19 DAL1622 ATL → AGS Jul 19, 14:35 UTCJul 19, 15:05 UTC30m

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?
Yes. Mode-S AD675D is currently airborne.
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 DAL441, DAL2539, DAL2220, DAL1292, DAL3133.