sensors Mode-S transponder

A39E6B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N332NB · AIRBUS A-319 · operated by DELTA AIR LINES INC

Hex
A39E6B
Octal
50717153
Decimal
10,722,923
Country
US
Tail
N332NB
Type
A319
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
371
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S A39E6B.

Country allocation

The ICAO 24-bit address A39E6B 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
DAL1143 Delta Air Lines 15 2026-07-24
DAL1517 - 10 2026-07-20
DAL2816 - 8 2026-07-13
DAL1216 Delta Air Lines 8 2026-07-25
DAL2766 Delta Air Lines 7 2026-07-26
DAL2534 Delta Air Lines 6 2026-07-19
DAL1287 Delta Air Lines 6 2026-07-25
DAL1279 - 6 2026-07-01
DAL1054 - 6 2026-07-12
DAL946 Delta Air Lines 5 2026-04-14
DAL628 - 5 2026-06-19
DAL2888 - 5 2026-07-07
DAL2728 - 5 2026-06-22
DAL611 - 4 2026-07-08
DAL439 Delta Air Lines 4 2026-07-24
DAL417 - 4 2026-06-18
DAL2686 Delta Air Lines 4 2026-05-29
DAL2682 Delta Air Lines 4 2026-07-23
DAL2618 Delta Air Lines 4 2026-06-15
DAL2568 Delta Air Lines 4 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2766 ALB → ATL Jul 26, 20:25 UTCJul 26, 22:30 UTC2h 5m
2026-07-26 DAL2766 ALB → ATL Jul 26, 17:10 UTCJul 26, 19:05 UTC1h 55m
2026-07-26 DAL2002 DEN → LAX Jul 26, 13:40 UTCJul 26, 15:30 UTC1h 50m
2026-07-26 DAL1729 SAV → ATL Jul 26, 01:55 UTCJul 26, 03:45 UTC1h 50m
2026-07-25 DAL681 SEA → MSP Jul 25, 21:35 UTCJul 26, 00:10 UTC2h 35m
2026-07-25 DAL521 SFO → JFK Jul 25, 16:55 UTCJul 25, 19:35 UTC2h 40m
2026-07-25 DAL1216 PBI → LGA Jul 25, 12:40 UTCJul 25, 15:35 UTC2h 55m
2026-07-25 DAL1216 PBI → LGA Jul 25, 12:37 UTCJul 25, 15:18 UTC2h 41m
2026-07-25 DAL1287 LAX → IAH Jul 25, 01:45 UTCJul 25, 04:50 UTC3h 5m
2026-07-24 DAL1143 ATL → HPN Jul 24, 21:30 UTCJul 25, 00:25 UTC2h 55m
2026-07-24 DAL1143 ATL → HPN Jul 24, 16:55 UTCJul 24, 19:55 UTC3h 0m
2026-07-24 DAL439 JFK → LAX Jul 24, 12:50 UTCJul 24, 15:20 UTC2h 30m
2026-07-24 DAL420 LAX → BOS Jul 24, 02:10 UTCJul 24, 04:55 UTC2h 45m
2026-07-23 DAL2588 MSP → EWR Jul 23, 21:52 UTCJul 24, 00:25 UTC2h 33m
2026-07-23 DAL2588 MSP → EWR Jul 23, 21:55 UTCJul 24, 00:30 UTC2h 35m
2026-07-23 DAL2458 PDX → SLC Jul 23, 17:50 UTCJul 23, 20:30 UTC2h 40m
2026-07-23 DAL2458 PDX → SLC Jul 23, 17:45 UTCJul 23, 20:22 UTC2h 37m
2026-07-23 DAL2682 BNA → DTW Jul 23, 15:20 UTCJul 23, 16:25 UTC1h 5m
2026-07-23 DAL2682 BNA → DTW Jul 23, 12:35 UTCJul 23, 13:55 UTC1h 20m
2026-07-23 DAL1752 DTW → MBJ Jul 23, 10:25 UTCJul 23, 11:15 UTC50m
2026-07-23 DAL3148 JAX → JFK Jul 23, 02:55 UTCJul 23, 03:40 UTC45m
2026-07-23 DAL3148 JAX → JFK Jul 23, 02:51 UTCJul 23, 03:39 UTC48m
2026-07-22 DAL2316 DTW → MSN Jul 22, 22:55 UTCJul 23, 00:15 UTC1h 20m
2026-07-22 DAL2316 DTW → MSN Jul 22, 20:20 UTCJul 22, 21:35 UTC1h 15m
2026-07-22 DAL2343 RDU → BOS Jul 22, 17:20 UTCJul 22, 18:55 UTC1h 35m
2026-07-22 DAL2751 LGA → TPA Jul 22, 14:30 UTCJul 22, 15:45 UTC1h 15m
2026-07-22 DAL1389 IAH → DTW Jul 22, 11:15 UTCJul 22, 12:50 UTC1h 35m
2026-07-22 DAL1287 LAX → IAH Jul 22, 01:45 UTCJul 22, 04:45 UTC3h 0m
2026-07-21 DAL1143 ATL → HPN Jul 21, 21:20 UTCJul 22, 00:10 UTC2h 50m
2026-07-21 DAL1143 ATL → HPN Jul 21, 16:50 UTCJul 21, 19:45 UTC2h 55m
2026-07-21 DAL1354 IAD → ATL Jul 21, 12:35 UTCJul 21, 15:25 UTC2h 50m
2026-07-21 DAL2243 JFK → MIA Jul 21, 01:35 UTCJul 21, 04:30 UTC2h 55m
2026-07-20 DAL1517 - Jul 20, 21:10 UTCJul 20, 23:55 UTC2h 44m
2026-07-20 DAL1517 - Jul 20, 16:45 UTCJul 20, 19:35 UTC2h 50m
2026-07-20 DAL1216 - Jul 20, 12:20 UTCJul 20, 15:15 UTC2h 55m
2026-07-20 DAL1216 IAH → LAX Jul 20, 12:19 UTCJul 20, 15:10 UTC2h 51m
2026-07-20 DAL1287 LAX → IAH Jul 20, 01:40 UTCJul 20, 04:40 UTC3h 0m
2026-07-19 DAL1143 - Jul 19, 21:15 UTCJul 20, 00:15 UTC3h 0m
2026-07-19 DAL1143 - Jul 19, 17:00 UTCJul 19, 20:00 UTC3h 0m
2026-07-19 DAL2534 SLC → PDX Jul 19, 12:50 UTCJul 19, 15:20 UTC2h 30m
2026-07-18 DAL2568 SFO → MSP Jul 18, 17:20 UTCJul 18, 20:00 UTC2h 40m
2026-07-18 DAL2568 SFO → MSP Jul 18, 17:18 UTCJul 18, 19:48 UTC2h 30m
2026-07-18 DAL1354 IAD → ATL Jul 18, 12:35 UTCJul 18, 15:21 UTC2h 46m
2026-07-18 DAL2243 - Jul 18, 01:39 UTCJul 18, 04:30 UTC2h 51m
2026-07-17 DAL1517 - Jul 17, 21:00 UTCJul 17, 23:55 UTC2h 55m
2026-07-17 DAL1517 MCI → LAX Jul 17, 20:58 UTCJul 17, 23:50 UTC2h 52m
2026-07-17 DAL1517 - Jul 17, 16:49 UTCJul 17, 19:40 UTC2h 50m
2026-07-17 DAL1216 - Jul 17, 12:19 UTCJul 17, 15:10 UTC2h 50m
2026-07-17 DAL1633 - Jul 17, 01:00 UTCJul 17, 03:20 UTC2h 20m
2026-07-16 DAL1865 - Jul 16, 20:29 UTCJul 16, 22:55 UTC2h 25m

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 N332NB page for operator, model, and routing details .

Mode-S A39E6B frequently asked

What is Mode-S code A39E6B?
A39E6B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N332NB.
Where is Mode-S A39E6B registered?
Mode-S code A39E6B 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 A39E6B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A39E6B, octal 50717153, decimal 10,722,923.
What flights does A39E6B operate?
Mode-S A39E6B has broadcast 20 distinct callsigns, including DAL1143, DAL1517, DAL2816, DAL1216, DAL2766.