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 Jul 26, 21:30 UTC
Flights observed
378
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

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
DAL381 - 9 2026-07-19
DAL1517 Delta Air Lines 7 2026-05-25
DAL1218 Delta Air Lines 7 2026-07-21
DAL948 - 6 2026-07-09
DAL628 - 6 2026-06-28
DAL2785 - 5 2026-06-23
DAL2659 Delta Air Lines 5 2026-05-06
DAL2358 Delta Air Lines 5 2026-07-22
DAL1143 - 5 2026-07-05
DAL946 - 4 2026-07-09
DAL788 Delta Air Lines 4 2026-07-22
DAL642 Delta Air Lines 4 2026-06-28
DAL2800 Delta Air Lines 4 2026-04-14
DAL2728 - 4 2026-07-13
DAL2632 Delta Air Lines 4 2026-07-26
DAL2618 - 4 2026-06-26
DAL2578 - 4 2026-07-19
DAL2282 - 4 2026-06-26
DAL1690 Delta Air Lines 4 2026-04-28
DAL1645 - 4 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2665 MOB → ATL Jul 26, 19:15 UTCJul 26, 21:30 UTC2h 15m
2026-07-26 DAL2632 ATL → OMA Jul 26, 15:25 UTCJul 26, 17:10 UTC1h 45m
2026-07-26 DAL2632 ATL → OMA Jul 26, 12:15 UTCJul 26, 14:10 UTC1h 55m
2026-07-25 DAL1940 BDA → JFK Jul 25, 19:15 UTCJul 25, 21:30 UTC2h 15m
2026-07-25 DAL1940 BDA → JFK Jul 25, 14:50 UTCJul 25, 17:25 UTC2h 35m
2026-07-25 DAL2818 ATL → BDL Jul 25, 12:10 UTCJul 25, 13:05 UTC55m
2026-07-25 DAL2372 SJC → SLC Jul 25, 03:55 UTCJul 25, 04:45 UTC50m
2026-07-25 DAL2625 RSW → LGA Jul 25, 00:00 UTCJul 25, 02:10 UTC2h 10m
2026-07-24 DAL2665 MOB → ATL Jul 24, 19:49 UTCJul 24, 22:00 UTC2h 11m
2026-07-24 DAL2665 MOB → ATL Jul 24, 19:50 UTCJul 24, 22:15 UTC2h 25m
2026-07-23 DAL2168 LGA → ATL Jul 23, 22:30 UTCJul 24, 00:05 UTC1h 35m
2026-07-23 DAL2168 LGA → ATL Jul 23, 22:24 UTCJul 24, 00:06 UTC1h 42m
2026-07-23 DAL2168 LGA → ATL Jul 23, 20:00 UTCJul 23, 21:20 UTC1h 20m
2026-07-23 DAL1444 PHL → ATL Jul 23, 17:25 UTCJul 23, 18:40 UTC1h 15m
2026-07-23 DAL1444 PHL → ATL Jul 23, 14:25 UTCJul 23, 15:50 UTC1h 25m
2026-07-23 DAL1073 CHS → BOS Jul 23, 10:30 UTCJul 23, 12:30 UTC2h 0m
2026-07-23 DAL1365 PHL → DTW Jul 23, 01:25 UTCJul 23, 04:05 UTC2h 40m
2026-07-22 DAL2358 RSW → BOS Jul 22, 23:30 UTCJul 23, 00:20 UTC50m
2026-07-22 DAL2358 RSW → BOS Jul 22, 23:25 UTCJul 23, 00:12 UTC47m
2026-07-22 DAL2358 RSW → BOS Jul 22, 20:50 UTCJul 22, 21:50 UTC1h 0m
2026-07-22 DAL788 HNL → MSP Jul 22, 16:45 UTCJul 22, 19:25 UTC2h 40m
2026-07-22 DAL788 HNL → MSP Jul 22, 13:00 UTCJul 22, 15:35 UTC2h 35m
2026-07-22 DAL2869 ATL → ROC Jul 22, 11:10 UTCJul 22, 11:50 UTC40m
2026-07-22 DAL2073 CHS → BOS Jul 22, 04:00 UTCJul 22, 05:00 UTC1h 0m
2026-07-21 DAL1218 AUS → DTW Jul 21, 17:25 UTCJul 21, 19:55 UTC2h 30m
2026-07-21 DAL1218 AUS → DTW Jul 21, 13:30 UTCJul 21, 16:00 UTC2h 30m
2026-07-21 DAL2091 ATL → DAB Jul 21, 10:45 UTCJul 21, 11:45 UTC1h 0m
2026-07-21 DAL2091 ATL → DAB Jul 21, 10:41 UTCJul 21, 11:47 UTC1h 6m
2026-07-21 DAL1689 LGA → RSW Jul 21, 01:45 UTCJul 21, 02:35 UTC50m
2026-07-20 DAL1407 - Jul 20, 23:15 UTCJul 21, 00:30 UTC1h 14m
2026-07-20 DAL1407 - Jul 20, 20:20 UTCJul 20, 21:35 UTC1h 15m
2026-07-20 DAL2682 BNA → DTW Jul 20, 15:15 UTCJul 20, 16:25 UTC1h 10m
2026-07-20 DAL2682 BNA → DTW Jul 20, 15:13 UTCJul 20, 16:25 UTC1h 12m
2026-07-20 DAL2682 BNA → DTW Jul 20, 12:50 UTCJul 20, 13:55 UTC1h 5m
2026-07-20 DAL1752 ROC → DTW Jul 20, 10:50 UTCJul 20, 11:40 UTC50m
2026-07-20 DAL3148 - Jul 20, 02:00 UTCJul 20, 02:40 UTC40m
2026-07-20 DAL3148 DTW → ROC Jul 20, 01:56 UTCJul 20, 02:41 UTC45m
2026-07-19 DAL2736 AUS → DTW Jul 19, 21:45 UTCJul 20, 00:25 UTC2h 40m
2026-07-19 DAL381 - Jul 19, 17:05 UTCJul 19, 20:15 UTC3h 10m
2026-07-19 DAL381 SFO → AUS Jul 19, 17:04 UTCJul 19, 20:15 UTC3h 11m
2026-07-19 DAL381 AUS → SFO Jul 19, 12:30 UTCJul 19, 15:40 UTC3h 10m
2026-07-19 DAL2578 - Jul 19, 00:35 UTCJul 19, 03:15 UTC2h 40m
2026-07-18 DAL2598 ATL → PIT Jul 18, 20:30 UTCJul 18, 23:25 UTC2h 55m
2026-07-18 DAL2458 - Jul 18, 16:05 UTCJul 18, 18:40 UTC2h 35m
2026-07-18 DAL1040 AUS → DTW Jul 18, 10:30 UTCJul 18, 13:05 UTC2h 35m
2026-07-18 DAL1040 AUS → DTW Jul 18, 10:31 UTCJul 18, 13:05 UTC2h 34m
2026-07-18 DAL1077 FAY → ATL Jul 18, 01:45 UTCJul 18, 04:55 UTC3h 11m
2026-07-17 DAL1077 FAY → ATL Jul 17, 21:20 UTCJul 18, 00:29 UTC3h 10m
2026-07-17 DAL1012 - Jul 17, 17:05 UTCJul 17, 19:35 UTC2h 30m
2026-07-17 DAL1012 DTW → AUS Jul 17, 17:02 UTCJul 17, 19:35 UTC2h 33m

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 Jul 26, 21:30 UTC.
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 DAL381, DAL1517, DAL1218, DAL948, DAL628.