Apparatus

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sensors Mode-S transponder

A3962D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N330DU · operated by DELTA AIR LINES INC

Hex
A3962D
Octal
50713055
Decimal
10,720,813
Country
US
Tail
N330DU
Type
BCS3
Broadcasting now · callsign DAL1417 · 27,000 ft
Flights observed
426
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 17:35 UTC

Current position

A3962D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A3962D 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
DAL675 - 15 2026-06-28
DAL691 Delta Air Lines 14 2026-05-19
DAL2677 - 13 2026-06-27
DAL1412 - 11 2026-06-18
DAL739 Delta Air Lines 9 2026-06-11
DAL2305 Delta Air Lines 9 2026-05-06
DAL1368 Delta Air Lines 8 2026-07-25
DAL1297 Delta Air Lines 8 2026-05-21
DAL1156 Delta Air Lines 8 2026-06-11
DAL952 - 7 2026-06-20
DAL870 - 7 2026-06-18
DAL804 - 7 2026-06-18
DAL710 Delta Air Lines 7 2026-05-06
DAL637 Delta Air Lines 7 2026-05-05
DAL2689 - 7 2026-06-27
DAL303 - 6 2026-06-24
DAL2985 - 6 2026-06-22
DAL2256 - 6 2026-06-21
DAL2140 Delta Air Lines 6 2026-07-24
DAL2088 Delta Air Lines 6 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2917 MSP → ATL Jul 26, 15:40 UTCJul 26, 17:30 UTC1h 50m
2026-07-26 DAL2917 MSP → ATL Jul 26, 11:05 UTCJul 26, 12:50 UTC1h 45m
2026-07-25 DAL2461 BOS → RSW Jul 25, 21:15 UTCJul 25, 23:50 UTC2h 35m
2026-07-25 DAL1368 JFK → MIA Jul 25, 13:36 UTCJul 25, 16:10 UTC2h 34m
2026-07-25 DAL1368 JFK → MIA Jul 25, 13:40 UTCJul 25, 16:10 UTC2h 30m
2026-07-25 DAL1394 PHL → ATL Jul 25, 01:05 UTCJul 25, 03:40 UTC2h 35m
2026-07-24 DAL2405 MSP → PHL Jul 24, 20:55 UTCJul 24, 23:45 UTC2h 50m
2026-07-24 DAL2140 SYR → ATL Jul 24, 16:00 UTCJul 24, 18:55 UTC2h 55m
2026-07-24 DAL2445 DTW → CMH Jul 24, 11:45 UTCJul 24, 14:45 UTC3h 0m
2026-07-24 DAL2445 DTW → CMH Jul 24, 00:35 UTCJul 24, 03:10 UTC2h 35m
2026-07-23 DAL1387 BOS → RDU Jul 23, 20:25 UTCJul 23, 23:00 UTC2h 35m
2026-07-23 DAL1322 DTW → BOS Jul 23, 15:30 UTCJul 23, 18:25 UTC2h 55m
2026-07-23 DAL2411 ATL → LGA Jul 23, 11:35 UTCJul 23, 14:15 UTC2h 40m
2026-07-23 DAL2503 SAN → SEA Jul 23, 02:35 UTCJul 23, 04:00 UTC1h 25m
2026-07-22 DAL2503 SAN → SEA Jul 22, 22:10 UTCJul 23, 00:20 UTC2h 10m
2026-07-22 DAL2461 MSY → LGA Jul 22, 17:45 UTCJul 22, 20:40 UTC2h 55m
2026-07-22 DAL1368 JFK → MIA Jul 22, 13:33 UTCJul 22, 16:19 UTC2h 46m
2026-07-22 DAL1368 JFK → MIA Jul 22, 13:35 UTCJul 22, 16:20 UTC2h 45m
2026-07-22 DAL1394 MSY → JFK Jul 22, 01:45 UTCJul 22, 04:35 UTC2h 50m
2026-07-21 DAL1368 JFK → MIA Jul 21, 14:00 UTCJul 21, 16:35 UTC2h 35m
2026-07-21 DAL1394 MSY → JFK Jul 21, 01:05 UTCJul 21, 04:00 UTC2h 55m
2026-07-20 DAL2405 MSP → PHL Jul 20, 20:57 UTCJul 20, 23:41 UTC2h 44m
2026-07-20 DAL2405 MSP → PHL Jul 20, 21:00 UTCJul 20, 23:35 UTC2h 35m
2026-07-20 DAL2140 - Jul 20, 15:55 UTCJul 20, 19:10 UTC3h 15m
2026-07-20 DAL2140 IAH → LGA Jul 20, 15:54 UTCJul 20, 19:01 UTC3h 7m
2026-07-20 DAL2140 - Jul 20, 11:20 UTCJul 20, 14:15 UTC2h 55m
2026-07-20 DAL2068 RDU → BOS Jul 20, 00:05 UTCJul 20, 02:25 UTC2h 20m
2026-07-19 DAL2068 RDU → BOS Jul 19, 19:50 UTCJul 19, 22:20 UTC2h 30m
2026-07-19 DAL572 - Jul 19, 15:50 UTCJul 19, 18:10 UTC2h 20m
2026-07-19 DAL2943 - Jul 19, 11:05 UTCJul 19, 13:35 UTC2h 30m
2026-07-17 DAL2943 - Jul 17, 23:55 UTCJul 18, 03:15 UTC3h 21m
2026-07-17 DAL2644 MSP → IAH Jul 17, 19:54 UTCJul 17, 22:14 UTC2h 20m
2026-07-17 DAL2644 - Jul 17, 19:55 UTCJul 17, 22:20 UTC2h 25m
2026-07-17 DAL2185 - Jul 17, 15:05 UTCJul 17, 18:19 UTC3h 15m
2026-07-17 DAL2185 SNA → MSP Jul 17, 15:02 UTCJul 17, 18:18 UTC3h 16m
2026-07-16 DAL2107 SLC → AUS Jul 16, 23:44 UTCJul 17, 02:59 UTC3h 15m
2026-07-16 DAL2521 - Jul 16, 18:59 UTCJul 16, 21:15 UTC2h 15m
2026-07-16 DAL2521 MSP → RDU Jul 16, 15:35 UTCJul 16, 17:40 UTC2h 5m
2026-07-16 DAL2717 - Jul 16, 11:10 UTCJul 16, 13:30 UTC2h 20m
2026-07-16 DAL2717 SAT → MSP Jul 16, 11:08 UTCJul 16, 13:32 UTC2h 24m
2026-07-16 DAL2773 - Jul 16, 00:00 UTCJul 16, 02:25 UTC2h 25m
2026-07-15 DAL1493 DCA → MSP Jul 15, 14:30 UTCJul 15, 16:35 UTC2h 5m
2026-07-15 DAL2962 MSP → DCA Jul 15, 00:45 UTCJul 15, 02:45 UTC2h 0m
2026-07-05 DAL9961 VQQ → ATL Jul 5, 16:35 UTCJul 5, 18:45 UTC2h 10m
2026-07-02 DAL2958 MSP → DCA Jul 2, 13:10 UTCJul 2, 15:20 UTC2h 10m
2026-07-02 DAL2617 - Jul 2, 00:10 UTCJul 2, 02:15 UTC2h 5m
2026-07-01 DAL2099 - Jul 1, 16:25 UTCJul 1, 19:25 UTC3h 0m
2026-07-01 DAL2099 LGA → IAH Jul 1, 16:23 UTCJul 1, 19:27 UTC3h 4m
2026-06-30 DAL2140 - Jun 30, 16:25 UTCJun 30, 19:45 UTC3h 20m
2026-06-30 DAL2140 LGA → IAH Jun 30, 11:35 UTCJun 30, 14:35 UTC3h 0m

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 N330DU page for operator, model, and routing details .

Mode-S A3962D frequently asked

What is Mode-S code A3962D?
A3962D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N330DU.
Where is Mode-S A3962D registered?
Mode-S code A3962D 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 A3962D broadcasting right now?
Yes. Mode-S A3962D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3962D, octal 50713055, decimal 10,720,813.
What flights does A3962D operate?
Mode-S A3962D has broadcast 20 distinct callsigns, including DAL675, DAL691, DAL2677, DAL1412, DAL739.