sensors Mode-S transponder

ADB2A4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N982AT · BOEING 717-200 · operated by DELTA AIR LINES INC

Hex
ADB2A4
Octal
53331244
Decimal
11,383,460
Country
US
Tail
N982AT
Type
B712
No current signal · last broadcast 6h ago
Flights observed
351
Distinct callsigns
20
Country
US
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S ADB2A4.

Country allocation

The ICAO 24-bit address ADB2A4 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 DAL2707 LGA → ATL May 29, 23:25 UTCMay 30, 01:15 UTC1h 50m
2026-05-29 DAL3101 AVL → ATL May 29, 21:40 UTCMay 29, 22:15 UTC35m
2026-05-29 DAL3101 AVL → ATL May 29, 19:30 UTCMay 29, 20:05 UTC35m
2026-05-29 DAL3012 BHM → ATL May 29, 17:30 UTCMay 29, 18:00 UTC30m
2026-05-29 DAL3012 BHM → ATL May 29, 15:25 UTCMay 29, 15:50 UTC25m
2026-05-29 DAL3183 JAN → ATL May 29, 12:35 UTCMay 29, 13:20 UTC45m
2026-05-29 DAL3183 JAN → ATL May 29, 12:25 UTCMay 29, 13:20 UTC55m
2026-05-29 DAL3117 ATL → JAN May 29, 03:10 UTCMay 29, 03:50 UTC40m
2026-05-29 DAL2803 MSP → SJC May 29, 01:05 UTCMay 29, 01:50 UTC45m
2026-05-28 DAL2803 MSP → SJC May 28, 22:35 UTCMay 28, 23:15 UTC40m
2026-05-28 DAL2094 PHL → MSP May 28, 19:35 UTCMay 28, 21:20 UTC1h 45m
2026-05-28 DAL2094 PHL → MSP May 28, 16:45 UTCMay 28, 18:30 UTC1h 45m
2026-05-28 DAL3103 ATL → PNS May 28, 14:55 UTCMay 28, 15:45 UTC50m
2026-05-28 DAL3103 ATL → PNS May 28, 12:45 UTCMay 28, 13:35 UTC50m
2026-05-27 DAL2725 ATL → AUS May 27, 22:50 UTCMay 28, 00:00 UTC1h 10m
2026-05-27 DAL2725 ATL → AUS May 27, 20:15 UTCMay 27, 21:05 UTC50m
2026-05-27 DAL724 ATL → BTV May 27, 18:10 UTCMay 27, 18:45 UTC35m
2026-05-27 DAL724 ATL → BTV May 27, 18:08 UTCMay 27, 18:40 UTC32m
2026-05-27 DAL724 ATL → BTV May 27, 16:30 UTCMay 27, 17:00 UTC30m
2026-05-27 DAL3048 - May 27, 14:35 UTCMay 27, 15:15 UTC40m
2026-05-27 DAL3048 - May 27, 12:30 UTCMay 27, 13:10 UTC40m
2026-05-27 DAL3187 ILM → ATL May 27, 10:15 UTCMay 27, 11:15 UTC1h 0m
2026-05-27 DAL3070 ATL → ILM May 27, 02:49 UTCMay 27, 03:45 UTC56m
2026-05-27 DAL3063 RIC → MSP May 27, 00:35 UTCMay 27, 01:26 UTC51m
2026-05-26 DAL3063 RIC → MSP May 26, 22:39 UTCMay 26, 22:59 UTC20m
2026-05-26 DAL3010 ATL → GSP May 26, 19:45 UTCMay 26, 20:29 UTC45m
2026-05-26 DAL3010 ATL → GSP May 26, 17:50 UTCMay 26, 18:19 UTC30m
2026-05-26 DAL3064 MCI → ATL May 26, 15:54 UTCMay 26, 16:40 UTC45m
2026-05-26 DAL3064 MCI → ATL May 26, 15:52 UTCMay 26, 16:36 UTC44m
2026-05-26 DAL3064 MCI → ATL May 26, 14:09 UTCMay 26, 14:45 UTC35m
2026-05-26 DAL2216 DTW → SFO May 26, 10:50 UTCMay 26, 12:35 UTC1h 45m
2026-05-26 DAL2216 DTW → SFO May 26, 10:45 UTCMay 26, 12:37 UTC1h 52m
2026-05-26 DAL2959 ATL → ICT May 26, 02:00 UTCMay 26, 03:40 UTC1h 40m
2026-05-25 DAL1126 PDX → LAX May 25, 23:19 UTCMay 26, 00:39 UTC1h 20m
2026-05-25 DAL1126 PDX → LAX May 25, 19:44 UTCMay 25, 20:34 UTC50m
2026-05-25 DAL1126 PDX → LAX May 25, 19:43 UTCMay 25, 20:35 UTC52m
2026-05-25 DAL1149 DTW → PBI May 25, 16:55 UTCMay 25, 17:45 UTC50m
2026-05-24 DAL2001 ATL → CMH May 24, 23:05 UTCMay 24, 23:46 UTC41m
2026-05-24 DAL1248 DTW → MCO May 24, 18:25 UTCMay 24, 19:55 UTC1h 30m
2026-05-24 DAL1248 DTW → MCO May 24, 15:25 UTCMay 24, 16:50 UTC1h 25m
2026-05-24 DAL1396 BOS → ATL May 24, 12:05 UTCMay 24, 13:10 UTC1h 5m
2026-05-23 DAL3025 ATL → LIT May 23, 23:00 UTCMay 24, 00:05 UTC1h 5m
2026-05-23 DAL2763 JFK → FLL May 23, 20:35 UTCMay 23, 21:45 UTC1h 10m
2026-05-23 DAL2763 JFK → FLL May 23, 20:30 UTCMay 23, 21:44 UTC1h 14m
2026-05-23 DAL2763 JFK → FLL May 23, 17:15 UTCMay 23, 18:15 UTC1h 1m
2026-05-23 DAL1708 EWR → MSP May 23, 15:15 UTCMay 23, 15:40 UTC25m
2026-05-23 DAL1708 EWR → MSP May 23, 13:20 UTCMay 23, 14:00 UTC40m
2026-05-23 DAL3085 VPS → ATL May 23, 11:15 UTCMay 23, 12:00 UTC45m
2026-05-23 DAL882 SJC → SLC May 23, 01:00 UTCMay 23, 01:45 UTC45m
2026-05-23 DAL882 SJC → SLC May 23, 00:56 UTCMay 23, 01:47 UTC51m

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 N982AT page for operator, model, and routing details .

Mode-S ADB2A4 frequently asked

What is Mode-S code ADB2A4?
ADB2A4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N982AT.
Where is Mode-S ADB2A4 registered?
Mode-S code ADB2A4 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 ADB2A4 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADB2A4, octal 53331244, decimal 11,383,460.
What flights does ADB2A4 operate?
Mode-S ADB2A4 has broadcast 20 distinct callsigns, including DAL1290, DAL2763, DAL724, DAL2944, DAL3063.