Apparatus

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sensors Mode-S transponder

ADB65B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N983AT · BOEING 717-200 · operated by DELTA AIR LINES INC

Hex
ADB65B
Octal
53333133
Decimal
11,384,411
Country
US
Tail
N983AT
Type
B712
No current signal · last broadcast Jul 26, 22:45 UTC
Flights observed
570
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S ADB65B.

Country allocation

The ICAO 24-bit address ADB65B 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
DAL940 - 11 2026-07-16
DAL3173 Delta Air Lines 10 2026-07-24
DAL2157 - 10 2026-07-21
DAL3199 Delta Air Lines 8 2026-07-23
DAL1681 - 8 2026-07-10
DAL3127 - 7 2026-06-15
DAL3083 - 7 2026-07-07
DAL1549 Delta Air Lines 7 2026-06-02
DAL1010 - 7 2026-07-16
DAL844 Delta Air Lines 6 2026-07-26
DAL3078 - 6 2026-07-01
DAL3045 Delta Air Lines 6 2026-04-17
DAL2968 Delta Air Lines 6 2026-07-26
DAL2803 - 6 2026-07-11
DAL2793 Delta Air Lines 6 2026-07-21
DAL2571 - 6 2026-07-04
DAL2539 - 6 2026-06-16
DAL2364 - 6 2026-07-21
DAL2086 Delta Air Lines 6 2026-07-23
DAL1347 - 6 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2822 MSP → PHL Jul 26, 21:45 UTCJul 26, 22:45 UTC1h 0m
2026-07-26 DAL844 LAS → CVG Jul 26, 18:30 UTCJul 26, 19:15 UTC45m
2026-07-26 DAL844 LAS → CVG Jul 26, 16:40 UTCJul 26, 17:30 UTC50m
2026-07-26 DAL844 LAS → CVG Jul 26, 16:39 UTCJul 26, 17:27 UTC48m
2026-07-26 DAL2968 ATL → IND Jul 26, 14:00 UTCJul 26, 15:15 UTC1h 15m
2026-07-26 DAL2968 ATL → IND Jul 26, 11:15 UTCJul 26, 12:20 UTC1h 5m
2026-07-25 DAL1821 ATL → CMH Jul 25, 22:10 UTCJul 25, 23:45 UTC1h 35m
2026-07-25 DAL1821 ATL → CMH Jul 25, 18:20 UTCJul 25, 19:40 UTC1h 20m
2026-07-25 DAL2682 BNA → DTW Jul 25, 15:40 UTCJul 25, 16:50 UTC1h 10m
2026-07-25 DAL2682 BNA → DTW Jul 25, 12:55 UTCJul 25, 14:00 UTC1h 5m
2026-07-25 DAL1405 LGA → MCO Jul 25, 10:15 UTCJul 25, 11:30 UTC1h 15m
2026-07-25 DAL720 MSP → MSO Jul 25, 00:35 UTCJul 25, 01:20 UTC45m
2026-07-24 DAL2094 PHL → MSP Jul 24, 20:50 UTCJul 24, 23:00 UTC2h 10m
2026-07-24 DAL2094 PHL → MSP Jul 24, 17:15 UTCJul 24, 19:10 UTC1h 55m
2026-07-24 DAL3173 ATL → GSO Jul 24, 15:40 UTCJul 24, 15:50 UTC10m
2026-07-24 DAL3173 ATL → GSO Jul 24, 14:25 UTCJul 24, 15:50 UTC1h 25m
2026-07-24 DAL3173 ATL → GSO Jul 24, 14:21 UTCJul 24, 15:25 UTC1h 4m
2026-07-24 DAL3173 ATL → GSO Jul 24, 12:20 UTCJul 24, 13:10 UTC50m
2026-07-24 DAL1044 TPA → ATL Jul 24, 09:45 UTCJul 24, 10:10 UTC25m
2026-07-24 DAL1059 FLL → LGA Jul 24, 03:15 UTCJul 24, 03:35 UTC20m
2026-07-23 DAL2086 DSM → ATL Jul 23, 23:50 UTCJul 24, 01:30 UTC1h 40m
2026-07-23 DAL2086 DSM → ATL Jul 23, 21:00 UTCJul 23, 22:40 UTC1h 40m
2026-07-23 DAL3141 CHA → ATL Jul 23, 19:00 UTCJul 23, 19:30 UTC30m
2026-07-23 DAL3141 CHA → ATL Jul 23, 17:25 UTCJul 23, 17:50 UTC25m
2026-07-23 DAL3199 ATL → GPT Jul 23, 15:15 UTCJul 23, 16:05 UTC50m
2026-07-23 DAL3199 ATL → GPT Jul 23, 15:10 UTCJul 23, 16:10 UTC1h 0m
2026-07-23 DAL3199 ATL → GPT Jul 23, 13:20 UTCJul 23, 14:05 UTC45m
2026-07-23 DAL1255 TPA → SLC Jul 23, 10:15 UTCJul 23, 11:45 UTC1h 30m
2026-07-23 DAL1255 TPA → SLC Jul 23, 10:11 UTCJul 23, 11:39 UTC1h 28m
2026-07-23 DAL1283 YWG → MSP Jul 23, 02:00 UTCJul 23, 03:25 UTC1h 25m
2026-07-22 DAL2182 SFO → DTW Jul 22, 23:55 UTCJul 23, 00:30 UTC35m
2026-07-22 DAL2182 SFO → DTW Jul 22, 23:51 UTCJul 23, 00:24 UTC33m
2026-07-22 DAL2182 SFO → DTW Jul 22, 22:30 UTCJul 22, 23:05 UTC35m
2026-07-21 DAL2364 - Jul 21, 23:35 UTCJul 22, 01:20 UTC1h 45m
2026-07-21 DAL2364 ATL → OMA Jul 21, 20:40 UTCJul 21, 22:30 UTC1h 50m
2026-07-21 DAL2157 - Jul 21, 18:30 UTCJul 21, 19:15 UTC45m
2026-07-21 DAL2157 CLT → ATL Jul 21, 18:28 UTCJul 21, 19:11 UTC43m
2026-07-21 DAL2157 - Jul 21, 16:35 UTCJul 21, 17:15 UTC40m
2026-07-21 DAL2793 SLC → MKE Jul 21, 14:30 UTCJul 21, 15:20 UTC50m
2026-07-21 DAL2793 SLC → MKE Jul 21, 12:30 UTCJul 21, 13:15 UTC45m
2026-07-20 DAL2771 - Jul 20, 23:55 UTCJul 21, 01:25 UTC1h 30m
2026-07-20 DAL2771 ATL → XNA Jul 20, 21:30 UTCJul 20, 22:50 UTC1h 20m
2026-07-20 DAL3141 - Jul 20, 19:40 UTCJul 20, 20:05 UTC25m
2026-07-20 DAL3141 ATL → CHA Jul 20, 17:25 UTCJul 20, 17:45 UTC20m
2026-07-20 DAL2637 BNA → ATL Jul 20, 14:05 UTCJul 20, 14:40 UTC35m
2026-07-19 DAL1637 ATL → MSP Jul 19, 16:30 UTCJul 19, 18:35 UTC2h 5m
2026-07-19 DAL1637 ATL → MSP Jul 19, 13:30 UTCJul 19, 15:15 UTC1h 45m
2026-07-19 DAL3041 - Jul 19, 10:40 UTCJul 19, 11:30 UTC50m
2026-07-19 DAL3117 - Jul 19, 04:20 UTCJul 19, 04:55 UTC35m
2026-07-18 DAL2037 - Jul 18, 21:50 UTCJul 18, 22:20 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 N983AT page for operator, model, and routing details .

Mode-S ADB65B frequently asked

What is Mode-S code ADB65B?
ADB65B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N983AT.
Where is Mode-S ADB65B registered?
Mode-S code ADB65B 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 ADB65B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADB65B, octal 53333133, decimal 11,384,411.
What flights does ADB65B operate?
Mode-S ADB65B has broadcast 20 distinct callsigns, including DAL940, DAL3173, DAL2157, DAL3199, DAL1681.