Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A434F9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N370NB · AIRBUS A-319 · operated by DELTA AIR LINES INC

Hex
A434F9
Octal
51032371
Decimal
10,761,465
Country
US
Tail
N370NB
Type
A319
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
426
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S A434F9.

Country allocation

The ICAO 24-bit address A434F9 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
DAL890 Delta Air Lines 10 2026-07-23
DAL2983 - 8 2026-07-12
DAL2888 - 8 2026-07-23
DAL2316 - 8 2026-07-15
DAL2314 Delta Air Lines 8 2026-06-05
DAL1472 Delta Air Lines 8 2026-05-30
DAL2816 - 7 2026-07-22
DAL2659 - 7 2026-07-04
DAL2147 - 7 2026-07-02
DAL1281 - 7 2026-06-30
DAL2746 - 6 2026-07-15
DAL2576 - 6 2026-07-12
DAL1043 - 6 2026-06-14
DAL978 Delta Air Lines 5 2026-06-11
DAL628 Delta Air Lines 5 2026-05-13
DAL2934 Delta Air Lines 5 2026-06-13
DAL2666 Delta Air Lines 5 2026-05-26
DAL2467 - 5 2026-07-09
DAL2066 - 5 2026-07-22
DAL2064 Delta Air Lines 5 2026-06-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL645 MEX → DTW Jul 26, 18:50 UTCJul 26, 22:15 UTC3h 25m
2026-07-26 DAL646 DTW → MEX Jul 26, 13:20 UTCJul 26, 16:55 UTC3h 35m
2026-07-26 DAL2292 SYR → ATL Jul 26, 11:00 UTCJul 26, 11:35 UTC35m
2026-07-26 DAL2424 DTW → MSN Jul 26, 02:00 UTCJul 26, 02:30 UTC30m
2026-07-25 DAL2736 AUS → DTW Jul 25, 22:05 UTCJul 26, 00:35 UTC2h 30m
2026-07-25 DAL381 SLC → JFK Jul 25, 16:50 UTCJul 25, 20:00 UTC3h 10m
2026-07-25 DAL381 SLC → JFK Jul 25, 12:20 UTCJul 25, 15:25 UTC3h 5m
2026-07-25 DAL2578 DTW → AUS Jul 25, 00:20 UTCJul 25, 02:45 UTC2h 25m
2026-07-24 DAL645 MEX → DTW Jul 24, 18:50 UTCJul 24, 22:40 UTC3h 50m
2026-07-24 DAL646 DTW → MEX Jul 24, 13:25 UTCJul 24, 17:05 UTC3h 40m
2026-07-24 DAL2091 ATL → DAB Jul 24, 10:35 UTCJul 24, 11:35 UTC1h 0m
2026-07-24 DAL2097 MSP → LAS Jul 24, 01:15 UTCJul 24, 02:55 UTC1h 40m
2026-07-23 DAL2863 DCA → MSP Jul 23, 19:15 UTCJul 23, 21:35 UTC2h 20m
2026-07-23 DAL2888 - Jul 23, 15:30 UTCJul 23, 17:55 UTC2h 25m
2026-07-23 DAL890 CLT → MSP Jul 23, 12:45 UTCJul 23, 14:20 UTC1h 35m
2026-07-23 DAL817 DEN → ATL Jul 23, 00:30 UTCJul 23, 02:05 UTC1h 35m
2026-07-22 DAL2816 - Jul 22, 20:45 UTCJul 22, 22:30 UTC1h 45m
2026-07-22 DAL2816 - Jul 22, 16:45 UTCJul 22, 19:00 UTC2h 15m
2026-07-22 DAL1022 ATL → DTW Jul 22, 13:40 UTCJul 22, 15:05 UTC1h 25m
2026-07-22 DAL2066 - Jul 22, 11:10 UTCJul 22, 12:15 UTC1h 5m
2026-07-21 DAL2816 - Jul 21, 23:05 UTCJul 22, 00:55 UTC1h 50m
2026-07-21 DAL2816 - Jul 21, 17:20 UTCJul 21, 19:35 UTC2h 15m
2026-07-21 DAL1022 ATL → DTW Jul 21, 13:30 UTCJul 21, 15:05 UTC1h 35m
2026-07-21 DAL2066 BOS → RDU Jul 21, 10:52 UTCJul 21, 12:20 UTC1h 28m
2026-07-21 DAL2066 - Jul 21, 10:55 UTCJul 21, 12:15 UTC1h 20m
2026-07-21 DAL2646 PVD → ATL Jul 21, 01:35 UTCJul 21, 03:15 UTC1h 40m
2026-07-20 DAL2646 PVD → ATL Jul 20, 21:40 UTCJul 21, 00:10 UTC2h 29m
2026-07-20 DAL1033 - Jul 20, 17:50 UTCJul 20, 19:35 UTC1h 45m
2026-07-20 DAL1033 RDU → BOS Jul 20, 17:47 UTCJul 20, 19:31 UTC1h 44m
2026-07-20 DAL2164 - Jul 20, 15:25 UTCJul 20, 16:35 UTC1h 10m
2026-07-19 DAL1865 - Jul 19, 21:00 UTCJul 19, 23:20 UTC2h 20m
2026-07-19 DAL1864 - Jul 19, 16:45 UTCJul 19, 19:05 UTC2h 20m
2026-07-19 DAL2859 - Jul 19, 13:45 UTCJul 19, 15:20 UTC1h 35m
2026-07-19 DAL2859 BDL → DTW Jul 19, 13:44 UTCJul 19, 15:13 UTC1h 29m
2026-07-19 DAL2859 - Jul 19, 11:15 UTCJul 19, 12:30 UTC1h 15m
2026-07-18 DAL364 BOS → SFO Jul 18, 21:30 UTCJul 19, 00:00 UTC2h 30m
2026-07-18 DAL364 BOS → SFO Jul 18, 21:15 UTCJul 19, 00:00 UTC2h 45m
2026-07-18 DAL364 BOS → SFO Jul 18, 16:25 UTCJul 18, 19:20 UTC2h 55m
2026-07-17 DAL2736 AUS → DTW Jul 17, 21:44 UTCJul 18, 00:25 UTC2h 40m
2026-07-17 DAL487 TPA → AUS Jul 17, 17:15 UTCJul 17, 19:20 UTC2h 5m
2026-07-17 DAL487 TPA → AUS Jul 17, 17:12 UTCJul 17, 19:19 UTC2h 7m
2026-07-17 DAL487 AUS → TPA Jul 17, 14:04 UTCJul 17, 16:10 UTC2h 5m
2026-07-17 DAL2524 MCO → AUS Jul 17, 00:10 UTCJul 17, 02:25 UTC2h 15m
2026-07-16 DAL1007 - Jul 16, 22:10 UTCJul 16, 22:55 UTC45m
2026-07-16 DAL1007 - Jul 16, 18:15 UTCJul 16, 20:39 UTC2h 25m
2026-07-16 DAL1003 - Jul 16, 14:40 UTCJul 16, 16:19 UTC1h 40m
2026-07-16 DAL1003 DCA → MCO Jul 16, 11:20 UTCJul 16, 13:15 UTC1h 55m
2026-07-16 DAL2073 DTW → DCA Jul 16, 01:30 UTCJul 16, 02:30 UTC1h 0m
2026-07-15 DAL2316 BNA → DTW Jul 15, 23:10 UTCJul 16, 00:20 UTC1h 10m
2026-07-15 DAL2316 - Jul 15, 20:25 UTCJul 15, 21:30 UTC1h 5m

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 N370NB page for operator, model, and routing details .

Mode-S A434F9 frequently asked

What is Mode-S code A434F9?
A434F9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N370NB.
Where is Mode-S A434F9 registered?
Mode-S code A434F9 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 A434F9 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A434F9, octal 51032371, decimal 10,761,465.
What flights does A434F9 operate?
Mode-S A434F9 has broadcast 20 distinct callsigns, including DAL890, DAL2983, DAL2888, DAL2316, DAL2314.