Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AD52C2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N958DZ · operated by DELTA AIR LINES INC

Hex
AD52C2
Octal
53251302
Decimal
11,358,914
Country
US
Tail
N958DZ
Type
B739
Broadcasting now · callsign DAL814 · 32,000 ft
Flights observed
387
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:25 UTC

Current position

AD52C2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AD52C2 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
DAL2329 Delta Air Lines 13 2026-04-26
DAL2071 Delta Air Lines 12 2026-05-05
DAL1363 Delta Air Lines 10 2026-04-26
DAL2152 Delta Air Lines 9 2026-05-16
DAL3134 Delta Air Lines 8 2026-05-05
DAL3112 - 8 2026-07-18
DAL2545 Delta Air Lines 7 2026-05-11
DAL2052 Delta Air Lines 7 2026-05-07
DAL1699 Delta Air Lines 7 2026-04-29
DAL3125 Delta Air Lines 6 2026-04-30
DAL3013 - 6 2026-07-13
DAL3157 - 5 2026-07-14
DAL2952 Delta Air Lines 5 2026-05-17
DAL2484 - 5 2026-07-12
DAL1592 - 5 2026-07-14
DAL1383 Delta Air Lines 5 2026-05-03
DAL1146 Delta Air Lines 5 2026-05-05
DAL532 - 4 2026-07-10
DAL409 Delta Air Lines 4 2026-04-30
DAL3122 Delta Air Lines 4 2026-05-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2427 SAN → MSP Jul 26, 19:50 UTCJul 26, 22:15 UTC2h 25m
2026-07-26 DAL2427 SAN → MSP Jul 26, 15:45 UTCJul 26, 18:10 UTC2h 25m
2026-07-26 DAL1653 MIA → LGA Jul 26, 12:40 UTCJul 26, 14:05 UTC1h 25m
2026-07-26 DAL335 ATL → SLC Jul 26, 06:50 UTCJul 26, 10:40 UTC3h 50m
2026-07-26 DAL2197 HPN → ATL Jul 26, 04:05 UTCJul 26, 05:05 UTC1h 0m
2026-07-25 DAL841 ATL → PDX Jul 25, 22:20 UTCJul 25, 23:45 UTC1h 25m
2026-07-25 DAL2651 MSP → SLC Jul 25, 17:40 UTCJul 25, 20:05 UTC2h 25m
2026-07-25 DAL2651 MSP → SLC Jul 25, 17:40 UTCJul 25, 20:02 UTC2h 22m
2026-07-25 DAL943 SLC → CVG Jul 25, 13:15 UTCJul 25, 15:55 UTC2h 40m
2026-07-25 DAL903 LGA → IAH Jul 25, 02:00 UTCJul 25, 06:40 UTC4h 40m
2026-07-24 DAL662 BNA → LGA Jul 24, 23:30 UTCJul 25, 00:20 UTC50m
2026-07-24 DAL662 BNA → LGA Jul 24, 17:20 UTCJul 24, 20:00 UTC2h 40m
2026-07-24 DAL662 BNA → LGA Jul 24, 13:50 UTCJul 24, 15:25 UTC1h 35m
2026-07-23 DAL503 BOS → ATL Jul 23, 21:40 UTCJul 24, 02:15 UTC4h 35m
2026-07-23 DAL503 BOS → ATL Jul 23, 21:37 UTCJul 24, 02:09 UTC4h 32m
2026-07-23 DAL2342 LGA → MIA Jul 23, 18:15 UTCJul 23, 20:05 UTC1h 50m
2026-07-23 DAL1034 ATL → LGA Jul 23, 14:20 UTCJul 23, 16:25 UTC2h 5m
2026-07-23 DAL2302 ATL → MSY Jul 23, 11:30 UTCJul 23, 12:40 UTC1h 10m
2026-07-23 DAL2248 MCO → BOS Jul 23, 00:27 UTCJul 23, 01:22 UTC55m
2026-07-23 DAL2248 MCO → BOS Jul 23, 00:30 UTCJul 23, 01:25 UTC55m
2026-07-22 DAL1480 ATL → BOS Jul 22, 20:55 UTCJul 22, 22:40 UTC1h 45m
2026-07-22 DAL1480 ATL → BOS Jul 22, 20:53 UTCJul 22, 22:39 UTC1h 46m
2026-07-22 DAL1520 DTW → ORD Jul 22, 16:30 UTCJul 22, 18:55 UTC2h 25m
2026-07-22 DAL1520 DTW → ORD Jul 22, 16:28 UTCJul 22, 18:53 UTC2h 25m
2026-07-22 DAL2347 RDU → BOS Jul 22, 11:55 UTCJul 22, 14:55 UTC3h 0m
2026-07-22 DAL2733 DFW → LGA Jul 22, 01:15 UTCJul 22, 03:25 UTC2h 10m
2026-07-22 DAL2733 DFW → LGA Jul 22, 01:11 UTCJul 22, 03:21 UTC2h 10m
2026-07-21 DAL2462 RSW → MSP Jul 21, 20:25 UTCJul 21, 22:55 UTC2h 30m
2026-07-21 DAL2462 RSW → MSP Jul 21, 15:45 UTCJul 21, 17:55 UTC2h 10m
2026-07-21 DAL1056 - Jul 21, 10:45 UTCJul 21, 14:10 UTC3h 25m
2026-07-21 DAL1428 JFK → AUS Jul 21, 02:35 UTCJul 21, 05:00 UTC2h 25m
2026-07-20 DAL2323 BOS → JAX Jul 20, 20:55 UTCJul 21, 00:30 UTC3h 35m
2026-07-20 DAL2323 BOS → JAX Jul 20, 15:30 UTCJul 20, 18:35 UTC3h 5m
2026-07-20 DAL2165 MIA → BOS Jul 20, 11:20 UTCJul 20, 13:30 UTC2h 10m
2026-07-20 DAL1414 ATL → BDL Jul 20, 01:25 UTCJul 20, 04:00 UTC2h 35m
2026-07-19 DAL1575 ATL → JFK Jul 19, 20:05 UTCJul 19, 22:30 UTC2h 25m
2026-07-19 DAL886 CVG → SEA Jul 19, 13:05 UTCJul 19, 16:15 UTC3h 10m
2026-07-19 DAL886 CVG → SEA Jul 19, 13:02 UTCJul 19, 16:14 UTC3h 12m
2026-07-19 DAL1251 ATL → TUS Jul 19, 03:40 UTCJul 19, 06:50 UTC3h 10m
2026-07-18 DAL2799 - Jul 18, 22:00 UTCJul 19, 00:00 UTC2h 0m
2026-07-18 DAL2799 BWI → ATL Jul 18, 21:56 UTCJul 19, 00:07 UTC2h 11m
2026-07-18 DAL2799 ATL → BWI Jul 18, 18:10 UTCJul 18, 19:55 UTC1h 45m
2026-07-18 DAL1400 STL → ATL Jul 18, 15:25 UTCJul 18, 16:40 UTC1h 15m
2026-07-18 DAL1400 ATL → STL Jul 18, 12:40 UTCJul 18, 13:50 UTC1h 10m
2026-07-18 DAL3015 - Jul 18, 10:10 UTCJul 18, 10:40 UTC30m
2026-07-18 DAL3072 ATL → TYS Jul 18, 04:35 UTCJul 18, 05:05 UTC30m
2026-07-18 DAL3112 SAV → ATL Jul 18, 01:02 UTCJul 18, 01:49 UTC47m
2026-07-18 DAL3112 SAV → ATL Jul 18, 01:05 UTCJul 18, 01:50 UTC45m
2026-07-17 DAL3112 ATL → SAV Jul 17, 22:25 UTCJul 17, 23:05 UTC40m
2026-07-17 DAL2925 ORF → ATL Jul 17, 18:00 UTCJul 17, 19:20 UTC1h 20m

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 N958DZ page for operator, model, and routing details .

Mode-S AD52C2 frequently asked

What is Mode-S code AD52C2?
AD52C2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N958DZ.
Where is Mode-S AD52C2 registered?
Mode-S code AD52C2 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 AD52C2 broadcasting right now?
Yes. Mode-S AD52C2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD52C2, octal 53251302, decimal 11,358,914.
What flights does AD52C2 operate?
Mode-S AD52C2 has broadcast 20 distinct callsigns, including DAL2329, DAL2071, DAL1363, DAL2152, DAL3134.