Apparatus

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sensors Mode-S transponder

AD2B43

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N948DZ · operated by DELTA AIR LINES INC

Hex
AD2B43
Octal
53225503
Decimal
11,348,803
Country
US
Tail
N948DZ
Type
B739
Broadcasting now · callsign DAL2911 · 32,000 ft
Flights observed
679
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

Current position

AD2B43 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AD2B43 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
DAL2908 Delta Air Lines 21 2026-06-04
DAL2911 Delta Air Lines 19 2026-07-25
DAL1363 Delta Air Lines 18 2026-07-26
DAL1204 Delta Air Lines 18 2026-07-25
DAL2827 Delta Air Lines 17 2026-07-23
DAL1381 Delta Air Lines 17 2026-07-19
DAL1097 - 17 2026-07-03
DAL3198 Delta Air Lines 15 2026-06-05
DAL3196 Delta Air Lines 15 2026-05-24
DAL3083 Delta Air Lines 15 2026-06-04
DAL2471 - 15 2026-07-10
DAL1470 Delta Air Lines 15 2026-07-23
DAL1212 Delta Air Lines 15 2026-07-24
DAL3107 - 14 2026-07-15
DAL1660 Delta Air Lines 14 2026-06-03
DAL1488 - 14 2026-07-24
DAL3154 - 13 2026-07-21
DAL3103 Delta Air Lines 12 2026-07-23
DAL3059 - 12 2026-07-10
DAL1750 Delta Air Lines 12 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL1550 AUS → BOS Jul 26, 21:45 UTCJul 26, 22:40 UTC55m
2026-07-26 DAL1550 AUS → BOS Jul 26, 19:15 UTCJul 26, 20:15 UTC1h 0m
2026-07-26 DAL1363 LGA → MSY Jul 26, 16:10 UTCJul 26, 17:20 UTC1h 10m
2026-07-26 DAL1363 LGA → MSY Jul 26, 13:20 UTCJul 26, 14:40 UTC1h 20m
2026-07-26 DAL1702 BOS → MCI Jul 26, 10:50 UTCJul 26, 11:30 UTC40m
2026-07-26 DAL2425 BOS → FLL Jul 26, 00:30 UTCJul 26, 01:10 UTC40m
2026-07-26 DAL2425 BOS → FLL Jul 26, 00:30 UTCJul 26, 01:10 UTC40m
2026-07-25 DAL3095 ATL → GSP Jul 25, 21:25 UTCJul 25, 21:55 UTC30m
2026-07-25 DAL3095 ATL → GSP Jul 25, 21:20 UTCJul 25, 21:49 UTC29m
2026-07-25 DAL3095 ATL → GSP Jul 25, 19:30 UTCJul 25, 20:00 UTC30m
2026-07-25 DAL851 YYC → MSP Jul 25, 16:50 UTCJul 25, 17:55 UTC1h 5m
2026-07-25 DAL2937 ATL → CMH Jul 25, 14:30 UTCJul 25, 15:25 UTC55m
2026-07-25 DAL1204 LGA → RSW Jul 25, 10:45 UTCJul 25, 12:25 UTC1h 40m
2026-07-25 DAL1204 LGA → RSW Jul 25, 10:42 UTCJul 25, 12:21 UTC1h 39m
2026-07-25 DAL2911 BOS → MIA Jul 25, 03:35 UTCJul 25, 05:15 UTC1h 40m
2026-07-25 DAL3179 GSO → ATL Jul 25, 00:20 UTCJul 25, 01:05 UTC45m
2026-07-24 DAL3179 GSO → ATL Jul 24, 21:55 UTCJul 24, 22:45 UTC50m
2026-07-24 DAL1488 RDU → ATL Jul 24, 18:05 UTCJul 24, 19:10 UTC1h 5m
2026-07-24 DAL1488 RDU → ATL Jul 24, 18:04 UTCJul 24, 19:08 UTC1h 4m
2026-07-24 DAL1488 ATL → RDU Jul 24, 15:35 UTCJul 24, 16:35 UTC1h 0m
2026-07-24 DAL1212 DCA → ATL Jul 24, 12:10 UTCJul 24, 13:45 UTC1h 35m
2026-07-23 DAL1470 BOS → RDU Jul 23, 22:15 UTCJul 23, 23:55 UTC1h 40m
2026-07-23 DAL2827 DAB → ATL Jul 23, 19:10 UTCJul 23, 20:10 UTC1h 0m
2026-07-23 DAL2827 DAB → ATL Jul 23, 16:50 UTCJul 23, 17:40 UTC50m
2026-07-23 DAL3103 ATL → PNS Jul 23, 14:40 UTCJul 23, 15:30 UTC50m
2026-07-23 DAL3103 ATL → PNS Jul 23, 12:15 UTCJul 23, 13:05 UTC50m
2026-07-23 DAL3103 ATL → PNS Jul 23, 12:14 UTCJul 23, 13:04 UTC50m
2026-07-22 DAL2484 ATL → BHM Jul 22, 22:40 UTCJul 22, 23:20 UTC40m
2026-07-22 DAL2484 ATL → BHM Jul 22, 20:50 UTCJul 22, 21:15 UTC25m
2026-07-22 DAL1363 - Jul 22, 16:00 UTCJul 22, 17:15 UTC1h 15m
2026-07-22 DAL1363 - Jul 22, 13:15 UTCJul 22, 14:30 UTC1h 15m
2026-07-22 DAL1702 - Jul 22, 11:10 UTCJul 22, 11:45 UTC35m
2026-07-22 DAL2425 BOS → FLL Jul 22, 00:25 UTCJul 22, 01:00 UTC35m
2026-07-21 DAL1550 AUS → BOS Jul 21, 21:50 UTCJul 21, 22:50 UTC1h 0m
2026-07-21 DAL1550 AUS → BOS Jul 21, 19:10 UTCJul 21, 20:05 UTC55m
2026-07-21 DAL1363 - Jul 21, 16:00 UTCJul 21, 17:15 UTC1h 15m
2026-07-21 DAL1363 - Jul 21, 13:05 UTCJul 21, 14:20 UTC1h 15m
2026-07-21 DAL3154 - Jul 21, 10:10 UTCJul 21, 11:05 UTC55m
2026-07-21 DAL2810 STL → MSP Jul 21, 03:00 UTCJul 21, 04:00 UTC1h 0m
2026-07-21 DAL527 SAN → BOS Jul 21, 00:20 UTCJul 21, 01:00 UTC40m
2026-07-20 DAL527 SAN → BOS Jul 20, 22:35 UTCJul 20, 23:15 UTC40m
2026-07-20 DAL1750 MSP → MYR Jul 20, 19:05 UTCJul 20, 20:10 UTC1h 5m
2026-07-20 DAL1750 MSP → MYR Jul 20, 19:04 UTCJul 20, 20:13 UTC1h 9m
2026-07-20 DAL1750 MSP → MYR Jul 20, 16:15 UTCJul 20, 17:20 UTC1h 5m
2026-07-20 DAL3110 MCI → ATL Jul 20, 13:10 UTCJul 20, 14:40 UTC1h 30m
2026-07-20 DAL1130 DEN → MSP Jul 20, 01:25 UTCJul 20, 03:00 UTC1h 35m
2026-07-20 DAL1130 DEN → MSP Jul 20, 01:22 UTCJul 20, 02:59 UTC1h 37m
2026-07-19 DAL1381 BOS → MCO Jul 19, 22:50 UTCJul 19, 23:35 UTC45m
2026-07-19 DAL1381 BOS → MCO Jul 19, 20:00 UTCJul 19, 20:45 UTC45m
2026-07-19 DAL1363 - Jul 19, 16:00 UTCJul 19, 17:15 UTC1h 15m

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 N948DZ page for operator, model, and routing details .

Mode-S AD2B43 frequently asked

What is Mode-S code AD2B43?
AD2B43 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N948DZ.
Where is Mode-S AD2B43 registered?
Mode-S code AD2B43 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 AD2B43 broadcasting right now?
Yes. Mode-S AD2B43 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD2B43, octal 53225503, decimal 11,348,803.
What flights does AD2B43 operate?
Mode-S AD2B43 has broadcast 20 distinct callsigns, including DAL2908, DAL2911, DAL1363, DAL1204, DAL2827.