Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A3B0FE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N337NB · AIRBUS A-319 · operated by DELTA AIR LINES INC

Hex
A3B0FE
Octal
50730376
Decimal
10,727,678
Country
US
Tail
N337NB
Type
A319
No current signal · last broadcast 2h ago
Flights observed
311
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A3B0FE.

Country allocation

The ICAO 24-bit address A3B0FE 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
DAL1517 Delta Air Lines 7 2026-05-25
DAL948 - 6 2026-07-09
DAL628 - 6 2026-06-28
DAL381 Delta Air Lines 6 2026-05-16
DAL2785 - 5 2026-06-23
DAL2659 Delta Air Lines 5 2026-05-06
DAL1218 Delta Air Lines 5 2026-05-17
DAL1143 - 5 2026-07-05
DAL946 - 4 2026-07-09
DAL642 Delta Air Lines 4 2026-06-28
DAL2800 Delta Air Lines 4 2026-04-14
DAL2728 - 4 2026-07-13
DAL2618 - 4 2026-06-26
DAL2282 - 4 2026-06-26
DAL1690 Delta Air Lines 4 2026-04-28
DAL1645 - 4 2026-06-28
DAL1406 Delta Air Lines 4 2026-05-25
DAL622 - 3 2026-06-25
DAL417 - 3 2026-06-27
DAL2975 Delta Air Lines 3 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 DAL2728 SLC → AUS Jul 13, 23:50 UTCJul 14, 02:10 UTC2h 20m
2026-07-13 DAL1064 YVR → SLC Jul 13, 20:42 UTCJul 13, 22:30 UTC1h 48m
2026-07-13 DAL1064 - Jul 13, 20:45 UTCJul 13, 22:35 UTC1h 50m
2026-07-13 DAL1049 - Jul 13, 17:30 UTCJul 13, 19:15 UTC1h 45m
2026-07-13 DAL1049 SLC → YVR Jul 13, 17:29 UTCJul 13, 19:14 UTC1h 45m
2026-07-13 DAL1088 SFO → SLC Jul 13, 00:45 UTCJul 13, 02:05 UTC1h 20m
2026-07-12 DAL1088 SLC → SFO Jul 12, 21:35 UTCJul 12, 23:15 UTC1h 40m
2026-07-12 DAL1754 - Jul 12, 18:05 UTCJul 12, 18:50 UTC45m
2026-07-12 DAL1744 SLC → BOI Jul 12, 14:20 UTCJul 12, 15:05 UTC45m
2026-07-12 DAL1744 SLC → BOI Jul 12, 14:18 UTCJul 12, 15:00 UTC42m
2026-07-12 DAL9966 LAX → SLC Jul 12, 07:35 UTCJul 12, 08:55 UTC1h 20m
2026-07-09 DAL946 AUS → LAX Jul 9, 18:45 UTCJul 9, 21:30 UTC2h 45m
2026-07-09 DAL946 - Jul 9, 14:45 UTCJul 9, 17:20 UTC2h 35m
2026-07-09 DAL948 DFW → LAX Jul 9, 01:55 UTCJul 9, 04:35 UTC2h 40m
2026-07-09 DAL948 DFW → LAX Jul 9, 01:52 UTCJul 9, 04:29 UTC2h 37m
2026-07-08 DAL948 LAX → DFW Jul 8, 20:50 UTCJul 8, 23:35 UTC2h 45m
2026-07-08 DAL2965 - Jul 8, 18:35 UTCJul 8, 19:25 UTC50m
2026-07-08 DAL2965 LAX → SJC Jul 8, 16:45 UTCJul 8, 17:35 UTC50m
2026-07-08 DAL1654 MSP → DFW Jul 8, 14:10 UTCJul 8, 15:05 UTC55m
2026-07-08 DAL3073 LAX → SJC Jul 8, 04:10 UTCJul 8, 04:55 UTC45m
2026-07-08 DAL2551 - Jul 8, 00:40 UTCJul 8, 02:35 UTC1h 55m
2026-07-07 DAL2551 - Jul 7, 21:35 UTCJul 7, 23:20 UTC1h 45m
2026-07-07 DAL2975 HPN → ATL Jul 7, 18:10 UTCJul 7, 20:10 UTC2h 0m
2026-07-07 DAL2975 HPN → ATL Jul 7, 18:05 UTCJul 7, 20:03 UTC1h 58m
2026-07-07 DAL2975 HPN → ATL Jul 7, 14:10 UTCJul 7, 16:00 UTC1h 50m
2026-07-07 DAL948 - Jul 7, 02:40 UTCJul 7, 05:20 UTC2h 40m
2026-07-06 DAL521 - Jul 6, 14:45 UTCJul 6, 17:25 UTC2h 40m
2026-07-05 DAL1143 - Jul 5, 22:40 UTCJul 6, 01:40 UTC3h 0m
2026-07-05 DAL1143 - Jul 5, 18:35 UTCJul 5, 21:25 UTC2h 50m
2026-07-05 DAL1216 - Jul 5, 14:30 UTCJul 5, 17:25 UTC2h 55m
2026-07-04 DAL1529 - Jul 4, 20:45 UTCJul 4, 23:10 UTC2h 25m
2026-07-04 DAL2790 BOS → CVG Jul 4, 16:50 UTCJul 4, 18:50 UTC2h 0m
2026-07-04 DAL2790 BOS → CVG Jul 4, 13:25 UTCJul 4, 15:25 UTC2h 0m
2026-07-04 DAL2316 DTW → MSN Jul 4, 01:05 UTCJul 4, 02:20 UTC1h 15m
2026-07-03 DAL2316 DTW → MSN Jul 3, 20:15 UTCJul 3, 21:40 UTC1h 25m
2026-07-03 DAL2746 DFW → DTW Jul 3, 16:40 UTCJul 3, 18:45 UTC2h 5m
2026-07-03 DAL2746 - Jul 3, 12:55 UTCJul 3, 15:05 UTC2h 10m
2026-07-02 DAL805 - Jul 2, 16:25 UTCJul 2, 23:45 UTC7h 20m
2026-07-02 DAL1040 AUS → DTW Jul 2, 10:35 UTCJul 2, 13:00 UTC2h 25m
2026-07-02 DAL1077 - Jul 2, 01:20 UTCJul 2, 04:25 UTC3h 5m
2026-07-01 DAL1077 AUS → SFO Jul 1, 20:30 UTCJul 1, 23:50 UTC3h 20m
2026-07-01 DAL487 JFK → SDQ Jul 1, 16:45 UTCJul 1, 18:55 UTC2h 10m
2026-07-01 DAL487 JFK → SDQ Jul 1, 13:25 UTCJul 1, 15:35 UTC2h 10m
2026-07-01 DAL2728 - Jul 1, 00:20 UTCJul 1, 02:50 UTC2h 30m
2026-06-30 DAL1064 YVR → SLC Jun 30, 20:30 UTCJun 30, 22:15 UTC1h 45m
2026-06-30 DAL1049 SLC → YVR Jun 30, 17:00 UTCJun 30, 18:55 UTC1h 55m
2026-06-30 DAL2207 CLE → SLC Jun 30, 11:25 UTCJun 30, 15:00 UTC3h 35m
2026-06-29 DAL2855 SLC → CLE Jun 29, 23:29 UTCJun 30, 02:35 UTC3h 6m
2026-06-29 DAL2855 SLC → CLE Jun 29, 23:28 UTCJun 30, 02:32 UTC3h 4m
2026-06-29 DAL1116 LGB → SLC Jun 29, 20:15 UTCJun 29, 21:34 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 N337NB page for operator, model, and routing details .

Mode-S A3B0FE frequently asked

What is Mode-S code A3B0FE?
A3B0FE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N337NB.
Where is Mode-S A3B0FE registered?
Mode-S code A3B0FE 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 A3B0FE broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3B0FE, octal 50730376, decimal 10,727,678.
What flights does A3B0FE operate?
Mode-S A3B0FE has broadcast 20 distinct callsigns, including DAL1517, DAL948, DAL628, DAL381, DAL2785.