Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A3D87D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N347NB · AIRBUS A-319 · operated by DELTA AIR LINES INC

Hex
A3D87D
Octal
50754175
Decimal
10,737,789
Country
US
Tail
N347NB
Type
A319
No current signal · last broadcast Jul 26, 20:20 UTC
Flights observed
519
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:20 UTC

Last known position

Most recent position reported by Mode-S A3D87D.

Country allocation

The ICAO 24-bit address A3D87D 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
DAL1279 - 18 2026-06-30
DAL1275 Delta Air Lines 12 2026-06-08
DAL1444 - 10 2026-07-19
DAL1472 Delta Air Lines 9 2026-07-26
DAL1038 - 9 2026-06-30
DAL2314 Delta Air Lines 8 2026-07-24
DAL1018 - 8 2026-06-30
DAL3190 - 7 2026-07-15
DAL2629 Delta Air Lines 7 2026-07-22
DAL2597 Delta Air Lines 7 2026-07-22
DAL2381 Delta Air Lines 7 2026-07-22
DAL1054 Delta Air Lines 7 2026-07-01
DAL1043 - 7 2026-06-21
DAL950 - 6 2026-07-14
DAL817 - 6 2026-07-03
DAL2816 - 6 2026-07-02
DAL2646 Delta Air Lines 6 2026-06-01
DAL2632 Delta Air Lines 6 2026-07-24
DAL2467 - 6 2026-07-15
DAL1438 Delta Air Lines 6 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL1472 MSP → ATL Jul 26, 18:30 UTCJul 26, 20:10 UTC1h 40m
2026-07-26 DAL1472 MSP → ATL Jul 26, 15:55 UTCJul 26, 17:15 UTC1h 20m
2026-07-26 DAL1072 JFK → DEN Jul 26, 12:20 UTCJul 26, 13:50 UTC1h 30m
2026-07-26 DAL1072 JFK → DEN Jul 26, 12:11 UTCJul 26, 13:50 UTC1h 39m
2026-07-25 DAL2815 BNA → MSP Jul 25, 22:25 UTCJul 25, 23:45 UTC1h 20m
2026-07-25 DAL2147 EWR → DTW Jul 25, 17:50 UTCJul 25, 19:15 UTC1h 25m
2026-07-25 DAL2147 EWR → DTW Jul 25, 17:39 UTCJul 25, 19:49 UTC2h 10m
2026-07-25 DAL2147 EWR → DTW Jul 25, 14:35 UTCJul 25, 16:30 UTC1h 55m
2026-07-25 DAL2557 SNA → SEA Jul 25, 11:20 UTCJul 25, 12:55 UTC1h 35m
2026-07-25 DAL2051 SLC → OAK Jul 25, 02:50 UTCJul 25, 04:30 UTC1h 40m
2026-07-24 DAL2314 BOS → LAS Jul 24, 22:35 UTCJul 25, 00:40 UTC2h 5m
2026-07-24 DAL2314 BOS → LAS Jul 24, 22:32 UTCJul 25, 00:35 UTC2h 3m
2026-07-24 DAL2314 BOS → LAS Jul 24, 18:45 UTCJul 24, 20:55 UTC2h 10m
2026-07-24 DAL2632 ATL → OMA Jul 24, 15:30 UTCJul 24, 17:15 UTC1h 45m
2026-07-24 DAL2632 ATL → OMA Jul 24, 15:28 UTCJul 24, 17:10 UTC1h 42m
2026-07-24 DAL2632 ATL → OMA Jul 24, 12:15 UTCJul 24, 14:20 UTC2h 5m
2026-07-23 DAL2625 RSW → LGA Jul 23, 23:30 UTCJul 24, 01:40 UTC2h 10m
2026-07-23 DAL2665 MOB → ATL Jul 23, 19:15 UTCJul 23, 21:30 UTC2h 15m
2026-07-23 DAL2632 ATL → OMA Jul 23, 15:35 UTCJul 23, 17:15 UTC1h 40m
2026-07-23 DAL2632 ATL → OMA Jul 23, 15:32 UTCJul 23, 17:14 UTC1h 42m
2026-07-23 DAL2632 ATL → OMA Jul 23, 12:20 UTCJul 23, 14:15 UTC1h 55m
2026-07-22 DAL2381 STL → DTW Jul 22, 23:50 UTCJul 23, 01:35 UTC1h 45m
2026-07-22 DAL2381 STL → DTW Jul 22, 21:05 UTCJul 22, 22:35 UTC1h 30m
2026-07-22 DAL2629 ATL → ILM Jul 22, 17:00 UTCJul 22, 19:10 UTC2h 10m
2026-07-22 DAL2597 ATL → YUL Jul 22, 13:20 UTCJul 22, 15:30 UTC2h 10m
2026-07-22 DAL2372 SJC → SLC Jul 22, 03:05 UTCJul 22, 04:05 UTC1h 0m
2026-07-21 DAL3047 MYR → ATL Jul 21, 22:40 UTCJul 21, 23:30 UTC50m
2026-07-21 DAL3047 MYR → ATL Jul 21, 13:40 UTCJul 21, 14:20 UTC40m
2026-07-21 DAL1023 ALB → ATL Jul 21, 10:10 UTCJul 21, 12:15 UTC2h 5m
2026-07-21 DAL1023 ALB → ATL Jul 21, 10:06 UTCJul 21, 12:08 UTC2h 2m
2026-07-21 DAL2064 LGA → IAH Jul 21, 02:16 UTCJul 21, 04:17 UTC2h 1m
2026-07-21 DAL2064 LGA → IAH Jul 21, 02:20 UTCJul 21, 04:20 UTC2h 0m
2026-07-20 DAL2381 STL → DTW Jul 20, 22:30 UTCJul 21, 00:10 UTC1h 40m
2026-07-20 DAL2381 STL → DTW Jul 20, 22:26 UTCJul 21, 00:06 UTC1h 40m
2026-07-20 DAL2381 STL → DTW Jul 20, 19:20 UTCJul 20, 20:50 UTC1h 30m
2026-07-20 DAL2490 LGA → RSW Jul 20, 16:15 UTCJul 20, 17:55 UTC1h 40m
2026-07-20 DAL2490 LGA → RSW Jul 20, 13:25 UTCJul 20, 15:05 UTC1h 40m
2026-07-19 DAL1444 - Jul 19, 21:20 UTCJul 19, 21:50 UTC30m
2026-07-19 DAL1444 IAD → AGS Jul 19, 17:15 UTCJul 19, 19:00 UTC1h 45m
2026-07-19 DAL1444 ATL → IAD Jul 19, 14:20 UTCJul 19, 15:40 UTC1h 20m
2026-07-19 DAL2127 IAD → ATL Jul 19, 11:45 UTCJul 19, 13:00 UTC1h 15m
2026-07-18 DAL2902 ATL → IAD Jul 18, 23:35 UTCJul 19, 00:55 UTC1h 20m
2026-07-18 DAL1072 - Jul 18, 13:50 UTCJul 18, 15:20 UTC1h 30m
2026-07-18 DAL2815 - Jul 18, 00:45 UTCJul 18, 02:14 UTC1h 30m
2026-07-17 DAL1444 - Jul 17, 22:49 UTCJul 17, 23:25 UTC35m
2026-07-17 DAL1444 GSP → ATL Jul 17, 22:47 UTCJul 17, 23:21 UTC34m
2026-07-17 DAL1444 - Jul 17, 16:59 UTCJul 17, 19:05 UTC2h 5m
2026-07-17 DAL1444 ATL → IAD Jul 17, 14:10 UTCJul 17, 15:35 UTC1h 25m
2026-07-17 DAL1136 - Jul 17, 10:40 UTCJul 17, 12:30 UTC1h 50m
2026-07-17 DAL1136 OMA → ATL Jul 17, 10:36 UTCJul 17, 12:23 UTC1h 47m

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 N347NB page for operator, model, and routing details .

Mode-S A3D87D frequently asked

What is Mode-S code A3D87D?
A3D87D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N347NB.
Where is Mode-S A3D87D registered?
Mode-S code A3D87D 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 A3D87D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3D87D, octal 50754175, decimal 10,737,789.
What flights does A3D87D operate?
Mode-S A3D87D has broadcast 20 distinct callsigns, including DAL1279, DAL1275, DAL1444, DAL1472, DAL1038.