Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AD072A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N939AT · BOEING 717-200 · operated by DELTA AIR LINES INC

Hex
AD072A
Octal
53203452
Decimal
11,339,562
Country
US
Tail
N939AT
Type
B712
Broadcasting now · callsign DAL3071 · 23,000 ft
Flights observed
303
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Current position

AD072A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AD072A 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
DAL1686 Delta Air Lines 10 2026-05-16
DAL2741 Delta Air Lines 8 2026-05-14
DAL3012 Delta Air Lines 7 2026-05-31
DAL762 Delta Air Lines 6 2026-04-28
DAL2780 Delta Air Lines 6 2026-05-22
DAL2582 Delta Air Lines 6 2026-04-30
DAL1418 Delta Air Lines 6 2026-05-12
DAL2341 Delta Air Lines 5 2026-05-14
DAL1716 Delta Air Lines 5 2026-05-12
DAL3103 Delta Air Lines 4 2026-05-05
DAL3078 Delta Air Lines 4 2026-05-30
DAL3068 Delta Air Lines 4 2026-05-27
DAL3039 Delta Air Lines 4 2026-06-01
DAL2784 Delta Air Lines 4 2026-05-30
DAL2577 Delta Air Lines 4 2026-05-16
DAL1743 Delta Air Lines 4 2026-05-26
DAL1545 Delta Air Lines 4 2026-05-01
DAL1158 Delta Air Lines 4 2026-05-31
DAL876 Delta Air Lines 3 2026-05-09
DAL3199 Delta Air Lines 3 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 DAL1055 ATL → PBI Jun 2, 23:10 UTCJun 2, 23:40 UTC30m
2026-06-02 DAL1055 ATL → PBI Jun 2, 17:50 UTCJun 2, 18:25 UTC35m
2026-06-02 DAL3108 ATL → DAY Jun 2, 15:20 UTCJun 2, 16:30 UTC1h 10m
2026-06-02 DAL3108 ATL → DAY Jun 2, 13:05 UTCJun 2, 14:15 UTC1h 10m
2026-06-02 DAL3004 GSO → ATL Jun 2, 10:45 UTCJun 2, 11:40 UTC55m
2026-06-02 DAL3004 GSO → ATL Jun 2, 10:42 UTCJun 2, 11:39 UTC57m
2026-06-02 DAL1617 ATL → BOS Jun 2, 01:10 UTCJun 2, 02:00 UTC50m
2026-06-02 DAL1617 ATL → BOS Jun 2, 01:10 UTCJun 2, 01:56 UTC46m
2026-06-01 DAL2725 ATL → AUS Jun 1, 22:45 UTCJun 1, 23:45 UTC1h 0m
2026-06-01 DAL2725 ATL → AUS Jun 1, 22:40 UTCJun 1, 23:47 UTC1h 7m
2026-06-01 DAL2725 ATL → AUS Jun 1, 20:15 UTCJun 1, 21:05 UTC50m
2026-06-01 DAL3116 SFO → SEA Jun 1, 18:25 UTCJun 1, 19:05 UTC40m
2026-06-01 DAL3116 SFO → SEA Jun 1, 16:30 UTCJun 1, 17:10 UTC40m
2026-06-01 DAL1290 ATL → MSN Jun 1, 14:40 UTCJun 1, 15:10 UTC30m
2026-06-01 DAL1290 ATL → MSN Jun 1, 14:36 UTCJun 1, 15:04 UTC28m
2026-06-01 DAL1290 ATL → MSN Jun 1, 12:45 UTCJun 1, 13:20 UTC35m
2026-06-01 DAL3039 CVG → ATL Jun 1, 11:20 UTCJun 1, 11:40 UTC20m
2026-06-01 DAL3039 CVG → ATL Jun 1, 11:15 UTCJun 1, 11:48 UTC33m
2026-06-01 DAL1366 STL → MSP Jun 1, 01:25 UTCJun 1, 01:55 UTC30m
2026-05-31 DAL2381 STL → DTW May 31, 22:25 UTCJun 1, 00:10 UTC1h 45m
2026-05-31 DAL2381 STL → DTW May 31, 19:05 UTCMay 31, 20:50 UTC1h 45m
2026-05-31 DAL3012 BHM → ATL May 31, 17:15 UTCMay 31, 17:45 UTC30m
2026-05-31 DAL3012 BHM → ATL May 31, 17:10 UTCMay 31, 17:44 UTC34m
2026-05-31 DAL3012 BHM → ATL May 31, 15:20 UTCMay 31, 15:55 UTC35m
2026-05-31 DAL1158 MSN → DTW May 31, 12:15 UTCMay 31, 13:50 UTC1h 35m
2026-05-30 DAL2784 ORD → LGA May 30, 22:05 UTCMay 30, 23:50 UTC1h 45m
2026-05-30 DAL2784 ORD → LGA May 30, 22:01 UTCMay 30, 23:45 UTC1h 44m
2026-05-30 DAL3078 ATL → LEX May 30, 19:35 UTCMay 30, 20:25 UTC50m
2026-05-30 DAL3078 ATL → LEX May 30, 17:50 UTCMay 30, 18:35 UTC45m
2026-05-30 DAL3155 AUS → DTW May 30, 15:50 UTCMay 30, 16:45 UTC55m
2026-05-30 DAL3178 ATL → GPT May 30, 02:10 UTCMay 30, 03:00 UTC50m
2026-05-29 DAL3112 ATL → SAV May 29, 23:53 UTCMay 30, 00:52 UTC59m
2026-05-29 DAL3112 ATL → SAV May 29, 23:55 UTCMay 30, 00:50 UTC55m
2026-05-29 DAL3112 ATL → SAV May 29, 21:25 UTCMay 29, 22:10 UTC45m
2026-05-29 DAL1640 LAX → JFK May 29, 18:50 UTCMay 29, 19:35 UTC45m
2026-05-29 DAL1640 LAX → JFK May 29, 18:50 UTCMay 29, 19:34 UTC44m
2026-05-29 DAL1640 LAX → JFK May 29, 16:35 UTCMay 29, 17:20 UTC45m
2026-05-29 DAL2232 DTW → GSP May 29, 14:15 UTCMay 29, 15:10 UTC55m
2026-05-29 DAL2232 DTW → GSP May 29, 12:15 UTCMay 29, 13:00 UTC45m
2026-05-29 DAL2128 ATL → ICT May 29, 01:20 UTCMay 29, 02:00 UTC40m
2026-05-28 DAL2128 ATL → ICT May 28, 22:15 UTCMay 29, 00:25 UTC2h 10m
2026-05-28 DAL2128 ATL → ICT May 28, 19:20 UTCMay 28, 21:05 UTC1h 45m
2026-05-28 DAL3030 GNV → ATL May 28, 17:20 UTCMay 28, 18:05 UTC45m
2026-05-28 DAL3030 GNV → ATL May 28, 17:14 UTCMay 28, 18:02 UTC48m
2026-05-28 DAL3030 GNV → ATL May 28, 15:20 UTCMay 28, 16:05 UTC45m
2026-05-28 DAL833 SEA → MCO May 28, 12:15 UTCMay 28, 13:55 UTC1h 40m
2026-05-28 DAL2630 LGA → RSW May 28, 00:10 UTCMay 28, 01:45 UTC1h 35m
2026-05-27 DAL3081 JAN → ATL May 27, 21:45 UTCMay 27, 22:30 UTC45m
2026-05-27 DAL3081 JAN → ATL May 27, 21:40 UTCMay 27, 22:26 UTC46m
2026-05-27 DAL3031 CLT → ATL May 27, 19:50 UTCMay 27, 20:35 UTC45m

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 N939AT page for operator, model, and routing details .

Mode-S AD072A frequently asked

What is Mode-S code AD072A?
AD072A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N939AT.
Where is Mode-S AD072A registered?
Mode-S code AD072A 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 AD072A broadcasting right now?
Yes. Mode-S AD072A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD072A, octal 53203452, decimal 11,339,562.
What flights does AD072A operate?
Mode-S AD072A has broadcast 20 distinct callsigns, including DAL1686, DAL2741, DAL3012, DAL762, DAL2780.