Apparatus

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sensors Mode-S transponder

AD5628

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N959AT · BOEING 717-200 · operated by DELTA AIR LINES INC

Hex
AD5628
Octal
53253050
Decimal
11,359,784
Country
US
Tail
N959AT
Type
B712
No current signal · last broadcast Jul 26, 20:35 UTC
Flights observed
729
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:35 UTC

Last known position

Most recent position reported by Mode-S AD5628.

Country allocation

The ICAO 24-bit address AD5628 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
DAL3173 Delta Air Lines 17 2026-07-21
DAL2780 Delta Air Lines 10 2026-06-04
DAL3040 - 9 2026-07-01
DAL1347 - 9 2026-06-23
DAL1286 - 9 2026-06-19
DAL3127 - 8 2026-07-20
DAL3050 Delta Air Lines 8 2026-06-29
DAL3045 - 8 2026-07-18
DAL1704 - 8 2026-07-08
DAL1085 Delta Air Lines 8 2026-07-18
DAL3171 - 7 2026-06-26
DAL3163 - 7 2026-06-25
DAL2959 - 7 2026-07-01
DAL2730 - 7 2026-07-17
DAL2539 - 7 2026-07-03
DAL2216 - 7 2026-07-01
DAL2157 - 7 2026-07-19
DAL1700 - 7 2026-07-09
DAL1290 - 7 2026-06-23
DAL1132 - 7 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2684 LGA → MCO Jul 26, 19:15 UTCJul 26, 20:35 UTC1h 20m
2026-07-26 DAL2684 LGA → MCO Jul 26, 16:10 UTCJul 26, 17:25 UTC1h 15m
2026-07-26 DAL2341 DTW → CVG Jul 26, 13:50 UTCJul 26, 14:55 UTC1h 5m
2026-07-26 DAL2341 DTW → CVG Jul 26, 11:20 UTCJul 26, 12:30 UTC1h 10m
2026-07-25 DAL579 LAS → DTW Jul 25, 18:25 UTCJul 25, 20:20 UTC1h 55m
2026-07-25 DAL579 LAS → DTW Jul 25, 18:22 UTCJul 25, 20:21 UTC1h 59m
2026-07-25 DAL579 LAS → DTW Jul 25, 14:40 UTCJul 25, 16:30 UTC1h 50m
2026-07-25 DAL876 ATL → LGA Jul 25, 11:20 UTCJul 25, 12:30 UTC1h 10m
2026-07-25 DAL3136 ATL → GSP Jul 25, 03:15 UTCJul 25, 03:45 UTC30m
2026-07-25 DAL3083 VPS → ATL Jul 25, 01:00 UTCJul 25, 01:50 UTC50m
2026-07-24 DAL3083 VPS → ATL Jul 24, 22:50 UTCJul 24, 23:30 UTC40m
2026-07-24 DAL3182 ATL → MYR Jul 24, 20:50 UTCJul 24, 21:35 UTC45m
2026-07-24 DAL3182 ATL → MYR Jul 24, 16:35 UTCJul 24, 17:20 UTC45m
2026-07-24 DAL3036 HSV → ATL Jul 24, 13:50 UTCJul 24, 14:25 UTC35m
2026-07-24 DAL3036 HSV → ATL Jul 24, 13:49 UTCJul 24, 14:26 UTC37m
2026-07-24 DAL3036 HSV → ATL Jul 24, 12:15 UTCJul 24, 12:45 UTC30m
2026-07-24 DAL3187 ILM → ATL Jul 24, 09:55 UTCJul 24, 10:50 UTC55m
2026-07-24 DAL3070 ATL → ILM Jul 24, 01:57 UTCJul 24, 02:57 UTC1h 0m
2026-07-24 DAL3070 ATL → ILM Jul 24, 02:00 UTCJul 24, 02:55 UTC55m
2026-07-23 DAL2599 ATL → MSN Jul 23, 22:05 UTCJul 23, 23:40 UTC1h 35m
2026-07-23 DAL2599 ATL → MSN Jul 23, 19:15 UTCJul 23, 20:55 UTC1h 40m
2026-07-23 DAL1248 DTW → MCO Jul 23, 16:35 UTCJul 23, 18:00 UTC1h 25m
2026-07-23 DAL1248 DTW → MCO Jul 23, 13:50 UTCJul 23, 15:15 UTC1h 25m
2026-07-23 DAL2516 PHL → MSP Jul 23, 10:20 UTCJul 23, 11:20 UTC1h 0m
2026-07-23 DAL1289 PHL → ATL Jul 23, 01:48 UTCJul 23, 03:00 UTC1h 12m
2026-07-23 DAL1289 PHL → ATL Jul 23, 01:50 UTCJul 23, 03:05 UTC1h 15m
2026-07-22 DAL2878 SEA → SLC Jul 22, 22:55 UTCJul 22, 23:40 UTC45m
2026-07-22 DAL2878 SEA → SLC Jul 22, 21:20 UTCJul 22, 21:55 UTC35m
2026-07-22 DAL3012 BHM → ATL Jul 22, 19:20 UTCJul 22, 19:55 UTC35m
2026-07-22 DAL3012 BHM → ATL Jul 22, 17:50 UTCJul 22, 18:15 UTC25m
2026-07-22 DAL3199 ATL → GPT Jul 22, 15:35 UTCJul 22, 16:30 UTC55m
2026-07-22 DAL3199 ATL → GPT Jul 22, 13:10 UTCJul 22, 14:00 UTC50m
2026-07-21 DAL3094 - Jul 21, 22:05 UTCJul 21, 22:45 UTC40m
2026-07-21 DAL3094 - Jul 21, 20:05 UTCJul 21, 20:45 UTC40m
2026-07-21 DAL1182 DFW → BOS Jul 21, 18:15 UTCJul 21, 18:45 UTC30m
2026-07-21 DAL1182 DFW → BOS Jul 21, 16:25 UTCJul 21, 17:00 UTC35m
2026-07-21 DAL3173 ATL → GSO Jul 21, 14:25 UTCJul 21, 15:15 UTC50m
2026-07-21 DAL3173 ATL → GSO Jul 21, 12:15 UTCJul 21, 13:05 UTC50m
2026-07-21 DAL2637 BNA → ATL Jul 21, 10:25 UTCJul 21, 11:05 UTC40m
2026-07-21 DAL3121 ATL → BNA Jul 21, 03:30 UTCJul 21, 04:10 UTC40m
2026-07-21 DAL3121 ATL → BNA Jul 21, 03:29 UTCJul 21, 04:10 UTC41m
2026-07-21 DAL2086 DSM → ATL Jul 21, 00:10 UTCJul 21, 01:40 UTC1h 30m
2026-07-20 DAL2086 DSM → ATL Jul 20, 21:20 UTCJul 20, 23:10 UTC1h 50m
2026-07-20 DAL3127 - Jul 20, 18:55 UTCJul 20, 20:05 UTC1h 10m
2026-07-20 DAL3127 MLB → ATL Jul 20, 18:54 UTCJul 20, 20:00 UTC1h 6m
2026-07-20 DAL3127 ATL → MLB Jul 20, 16:40 UTCJul 20, 17:45 UTC1h 5m
2026-07-20 DAL1708 - Jul 20, 14:55 UTCJul 20, 15:30 UTC35m
2026-07-20 DAL1708 HSV → ATL Jul 20, 14:53 UTCJul 20, 15:26 UTC33m
2026-07-20 DAL1708 ATL → HSV Jul 20, 13:10 UTCJul 20, 13:45 UTC35m
2026-07-20 DAL3041 JAN → ATL Jul 20, 11:00 UTCJul 20, 11:40 UTC40m

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 N959AT page for operator, model, and routing details .

Mode-S AD5628 frequently asked

What is Mode-S code AD5628?
AD5628 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N959AT.
Where is Mode-S AD5628 registered?
Mode-S code AD5628 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 AD5628 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD5628, octal 53253050, decimal 11,359,784.
What flights does AD5628 operate?
Mode-S AD5628 has broadcast 20 distinct callsigns, including DAL3173, DAL2780, DAL3040, DAL1347, DAL1286.