Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A3B796

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N339DN · AIRBUS A-321 · operated by UMB BANK NA TRUSTEE

Hex
A3B796
Octal
50733626
Decimal
10,729,366
Country
US
Tail
N339DN
Type
A321
No current signal · last broadcast Jul 26, 19:20 UTC
Flights observed
569
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 19:20 UTC

Last known position

Most recent position reported by Mode-S A3B796.

Country allocation

The ICAO 24-bit address A3B796 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
DAL2104 - 12 2026-06-23
DAL1082 Delta Air Lines 8 2026-04-25
DAL2852 Delta Air Lines 7 2026-04-30
DAL1571 Delta Air Lines 7 2026-04-24
DAL488 - 6 2026-07-10
DAL2498 Delta Air Lines 6 2026-06-06
DAL1375 Delta Air Lines 6 2026-05-29
DAL1295 Delta Air Lines 6 2026-07-21
DAL1227 Delta Air Lines 6 2026-07-21
DAL1180 Delta Air Lines 6 2026-06-23
DAL2994 Delta Air Lines 5 2026-04-30
DAL2923 Delta Air Lines 5 2026-06-07
DAL2899 Delta Air Lines 5 2026-06-23
DAL2690 Delta Air Lines 5 2026-06-04
DAL2401 - 5 2026-06-26
DAL2270 - 5 2026-06-24
DAL1658 Delta Air Lines 5 2026-07-25
DAL1594 Delta Air Lines 5 2026-05-07
DAL1576 Delta Air Lines 5 2026-05-19
DAL1572 Delta Air Lines 5 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL1384 BDL → ATL Jul 26, 17:45 UTCJul 26, 19:15 UTC1h 30m
2026-07-26 DAL1384 BDL → ATL Jul 26, 14:50 UTCJul 26, 16:25 UTC1h 35m
2026-07-26 DAL1249 DTW → FLL Jul 26, 10:20 UTCJul 26, 11:45 UTC1h 25m
2026-07-26 DAL1589 ORD → BOS Jul 26, 03:05 UTCJul 26, 04:30 UTC1h 25m
2026-07-25 DAL2143 JFK → MCO Jul 25, 22:05 UTCJul 25, 23:50 UTC1h 45m
2026-07-25 DAL2143 JFK → MCO Jul 25, 22:03 UTCJul 25, 23:46 UTC1h 43m
2026-07-25 DAL921 ATL → DFW Jul 25, 18:45 UTCJul 25, 20:25 UTC1h 40m
2026-07-25 DAL1658 ATL → MCO Jul 25, 16:15 UTCJul 25, 17:15 UTC1h 0m
2026-07-25 DAL1658 ATL → MCO Jul 25, 13:40 UTCJul 25, 14:40 UTC1h 0m
2026-07-25 DAL2662 CVG → ATL Jul 25, 10:25 UTCJul 25, 12:05 UTC1h 40m
2026-07-25 DAL2422 JFK → PHX Jul 25, 02:55 UTCJul 25, 04:40 UTC1h 45m
2026-07-25 DAL2422 JFK → PHX Jul 25, 02:51 UTCJul 25, 04:32 UTC1h 41m
2026-07-24 DAL1386 BOS → JFK Jul 24, 23:25 UTCJul 25, 00:50 UTC1h 25m
2026-07-24 DAL1386 BOS → JFK Jul 24, 19:35 UTCJul 24, 21:10 UTC1h 35m
2026-07-24 DAL2976 ATL → AUS Jul 24, 15:45 UTCJul 24, 17:40 UTC1h 55m
2026-07-24 DAL2976 ATL → AUS Jul 24, 12:30 UTCJul 24, 14:20 UTC1h 50m
2026-07-23 DAL1150 LGA → DTW Jul 23, 22:00 UTCJul 23, 23:05 UTC1h 5m
2026-07-23 DAL1150 LGA → DTW Jul 23, 19:15 UTCJul 23, 20:15 UTC1h 0m
2026-07-23 DAL1510 MIA → ATL Jul 23, 16:20 UTCJul 23, 17:45 UTC1h 25m
2026-07-23 DAL1510 MIA → ATL Jul 23, 13:05 UTCJul 23, 14:30 UTC1h 25m
2026-07-23 DAL2330 LAX → SFO Jul 23, 09:30 UTCJul 23, 10:35 UTC1h 5m
2026-07-22 DAL1457 BOS → ATL Jul 22, 22:45 UTCJul 22, 23:50 UTC1h 5m
2026-07-22 DAL1457 BOS → ATL Jul 22, 22:43 UTCJul 22, 23:42 UTC59m
2026-07-22 DAL2063 JFK → DFW Jul 22, 19:55 UTCJul 22, 21:20 UTC1h 25m
2026-07-22 DAL2063 JFK → DFW Jul 22, 17:20 UTCJul 22, 18:45 UTC1h 25m
2026-07-22 DAL1152 MSP → SFO Jul 22, 14:10 UTCJul 22, 15:50 UTC1h 40m
2026-07-21 DAL1692 ATL → EGE Jul 21, 19:20 UTCJul 21, 20:55 UTC1h 35m
2026-07-21 DAL1227 IAH → LGA Jul 21, 15:25 UTCJul 21, 16:35 UTC1h 10m
2026-07-21 DAL1227 IAH → LGA Jul 21, 15:25 UTCJul 21, 16:28 UTC1h 3m
2026-07-21 DAL1227 IAH → LGA Jul 21, 12:55 UTCJul 21, 14:00 UTC1h 5m
2026-07-21 DAL1295 PHL → MSP Jul 21, 01:30 UTCJul 21, 03:00 UTC1h 30m
2026-07-20 DAL1295 PHL → MSP Jul 20, 22:10 UTCJul 20, 23:40 UTC1h 30m
2026-07-20 DAL2950 BWI → ATL Jul 20, 11:00 UTCJul 20, 12:15 UTC1h 15m
2026-07-20 DAL2950 BWI → ATL Jul 20, 10:55 UTCJul 20, 12:18 UTC1h 23m
2026-07-20 DAL1257 ATL → BWI Jul 20, 01:15 UTCJul 20, 02:45 UTC1h 30m
2026-07-19 DAL1572 FLL → BOS Jul 19, 20:55 UTCJul 19, 23:00 UTC2h 5m
2026-07-19 DAL1572 FLL → BOS Jul 19, 17:10 UTCJul 19, 18:40 UTC1h 30m
2026-07-19 DAL1627 DFW → ATL Jul 19, 13:25 UTCJul 19, 15:10 UTC1h 45m
2026-07-19 DAL1627 DFW → ATL Jul 19, 13:23 UTCJul 19, 15:02 UTC1h 39m
2026-07-19 DAL3161 ATL → DFW Jul 19, 00:30 UTCJul 19, 02:15 UTC1h 45m
2026-07-19 DAL3161 ATL → DFW Jul 19, 00:27 UTCJul 19, 02:09 UTC1h 42m
2026-07-18 DAL838 - Jul 18, 21:20 UTCJul 18, 22:30 UTC1h 10m
2026-07-18 DAL838 - Jul 18, 18:30 UTCJul 18, 20:00 UTC1h 30m
2026-07-18 DAL1227 TPA → ATL Jul 18, 16:10 UTCJul 18, 17:10 UTC1h 0m
2026-07-18 DAL1227 TPA → ATL Jul 18, 16:07 UTCJul 18, 17:09 UTC1h 2m
2026-07-18 DAL1227 ATL → TPA Jul 18, 12:50 UTCJul 18, 13:55 UTC1h 5m
2026-07-18 DAL1150 MCO → ATL Jul 18, 02:00 UTCJul 18, 03:20 UTC1h 21m
2026-07-17 DAL1150 ATL → MCO Jul 17, 22:45 UTCJul 18, 00:00 UTC1h 15m
2026-07-17 DAL2976 AUS → ATL Jul 17, 15:49 UTCJul 17, 17:40 UTC1h 50m
2026-07-17 DAL2976 ATL → AUS Jul 17, 12:30 UTCJul 17, 14:20 UTC1h 50m

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 N339DN page for operator, model, and routing details .

Mode-S A3B796 frequently asked

What is Mode-S code A3B796?
A3B796 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N339DN.
Where is Mode-S A3B796 registered?
Mode-S code A3B796 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 A3B796 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3B796, octal 50733626, decimal 10,729,366.
What flights does A3B796 operate?
Mode-S A3B796 has broadcast 20 distinct callsigns, including DAL2104, DAL1082, DAL2852, DAL1571, DAL488.