Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A4189F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N363NB · AIRBUS A-319 · operated by DELTA AIR LINES INC

Hex
A4189F
Octal
51014237
Decimal
10,754,207
Country
US
Tail
N363NB
Type
A319
No current signal · last broadcast Jul 26, 21:25 UTC
Flights observed
545
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:25 UTC

Last known position

Most recent position reported by Mode-S A4189F.

Country allocation

The ICAO 24-bit address A4189F 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
DAL2659 - 9 2026-07-20
DAL946 Delta Air Lines 8 2026-07-07
DAL2282 Delta Air Lines 8 2026-05-25
DAL1218 Delta Air Lines 7 2026-06-14
DAL2816 Delta Air Lines 6 2026-05-27
DAL2785 - 6 2026-06-22
DAL2766 - 6 2026-07-06
DAL2283 Delta Air Lines 6 2026-07-24
DAL2118 - 6 2026-07-23
DAL1472 - 6 2026-07-18
DAL1077 - 6 2026-07-09
DAL628 - 5 2026-06-16
DAL438 Delta Air Lines 5 2026-05-25
DAL381 - 5 2026-06-24
DAL2888 Delta Air Lines 5 2026-05-31
DAL2632 - 5 2026-07-19
DAL2570 - 5 2026-04-13
DAL2421 Delta Air Lines 5 2026-06-04
DAL2148 - 5 2026-07-03
DAL1529 Delta Air Lines 5 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL1454 CHS → ATL Jul 26, 20:25 UTCJul 26, 21:25 UTC1h 0m
2026-07-26 DAL2343 RDU → BOS Jul 26, 17:20 UTCJul 26, 18:35 UTC1h 15m
2026-07-26 DAL2751 LGA → TPA Jul 26, 14:45 UTCJul 26, 16:00 UTC1h 15m
2026-07-26 DAL1389 IAH → DTW Jul 26, 11:05 UTCJul 26, 13:25 UTC2h 20m
2026-07-25 DAL1529 TPA → DTW Jul 25, 20:35 UTCJul 25, 22:50 UTC2h 15m
2026-07-25 DAL1529 TPA → DTW Jul 25, 20:31 UTCJul 25, 22:49 UTC2h 18m
2026-07-25 DAL2343 RDU → BOS Jul 25, 17:15 UTCJul 25, 18:35 UTC1h 20m
2026-07-25 DAL2751 LGA → TPA Jul 25, 14:35 UTCJul 25, 15:50 UTC1h 15m
2026-07-25 DAL2183 DFW → DTW Jul 25, 10:35 UTCJul 25, 11:45 UTC1h 10m
2026-07-25 DAL2183 DFW → DTW Jul 25, 10:30 UTCJul 25, 12:41 UTC2h 11m
2026-07-24 DAL2305 MCO → LGA Jul 24, 23:35 UTCJul 25, 03:00 UTC3h 25m
2026-07-24 DAL1075 SFO → ATL Jul 24, 20:05 UTCJul 24, 21:20 UTC1h 15m
2026-07-24 DAL2283 ALB → ATL Jul 24, 17:25 UTCJul 24, 19:00 UTC1h 35m
2026-07-24 DAL2351 DCA → MCO Jul 24, 12:55 UTCJul 24, 16:10 UTC3h 15m
2026-07-24 DAL1207 DTW → DFW Jul 24, 01:00 UTCJul 24, 03:05 UTC2h 5m
2026-07-23 DAL2358 RSW → BOS Jul 23, 22:55 UTCJul 23, 23:45 UTC50m
2026-07-23 DAL2358 RSW → BOS Jul 23, 20:15 UTCJul 23, 21:15 UTC1h 0m
2026-07-23 DAL2265 - Jul 23, 17:40 UTCJul 23, 19:00 UTC1h 20m
2026-07-23 DAL2118 BOS → RDU Jul 23, 14:25 UTCJul 23, 16:10 UTC1h 45m
2026-07-23 DAL1054 ALB → ATL Jul 23, 11:15 UTCJul 23, 12:35 UTC1h 20m
2026-07-23 DAL2992 SDF → ATL Jul 23, 02:30 UTCJul 23, 04:15 UTC1h 45m
2026-07-23 DAL2992 SDF → ATL Jul 23, 02:25 UTCJul 23, 04:05 UTC1h 40m
2026-07-22 DAL2576 TPA → BOS Jul 22, 22:00 UTCJul 23, 00:30 UTC2h 30m
2026-07-22 DAL2983 MSP → DCA Jul 22, 16:45 UTCJul 22, 18:30 UTC1h 45m
2026-07-22 DAL1006 SLC → LAX Jul 22, 13:30 UTCJul 22, 14:05 UTC35m
2026-07-21 DAL2615 EWR → DTW Jul 21, 22:30 UTCJul 22, 00:40 UTC2h 10m
2026-07-21 DAL1125 SEA → ORD Jul 21, 19:20 UTCJul 21, 20:55 UTC1h 35m
2026-07-21 DAL1125 SEA → ORD Jul 21, 16:20 UTCJul 21, 18:20 UTC2h 0m
2026-07-21 DAL2840 - Jul 21, 12:55 UTCJul 21, 15:05 UTC2h 10m
2026-07-20 DAL2659 ATL → PVD Jul 20, 22:55 UTCJul 21, 01:00 UTC2h 4m
2026-07-20 DAL360 ATL → LGA Jul 20, 20:20 UTCJul 20, 21:35 UTC1h 15m
2026-07-20 DAL360 ATL → LGA Jul 20, 17:30 UTCJul 20, 18:50 UTC1h 20m
2026-07-20 DAL1136 - Jul 20, 10:50 UTCJul 20, 12:30 UTC1h 40m
2026-07-20 DAL2707 LGA → ATL Jul 20, 01:00 UTCJul 20, 02:55 UTC1h 55m
2026-07-19 DAL2467 - Jul 19, 22:00 UTCJul 19, 22:50 UTC50m
2026-07-19 DAL2467 MYR → ATL Jul 19, 21:56 UTCJul 19, 22:47 UTC51m
2026-07-19 DAL2467 - Jul 19, 20:05 UTCJul 19, 20:45 UTC40m
2026-07-19 DAL2632 - Jul 19, 15:25 UTCJul 19, 17:05 UTC1h 40m
2026-07-19 DAL2632 ATL → OMA Jul 19, 12:05 UTCJul 19, 13:55 UTC1h 50m
2026-07-18 DAL1472 - Jul 18, 20:05 UTCJul 18, 21:30 UTC1h 25m
2026-07-18 DAL1472 - Jul 18, 17:10 UTCJul 18, 18:30 UTC1h 20m
2026-07-18 DAL926 DCA → ATL Jul 18, 14:30 UTCJul 18, 15:45 UTC1h 15m
2026-07-18 DAL926 ATL → DCA Jul 18, 11:35 UTCJul 18, 13:05 UTC1h 30m
2026-07-18 DAL2625 RSW → LGA Jul 18, 00:00 UTCJul 18, 02:09 UTC2h 10m
2026-07-17 DAL2665 MOB → ATL Jul 17, 19:49 UTCJul 17, 22:15 UTC2h 26m
2026-07-17 DAL2665 MOB → ATL Jul 17, 19:49 UTCJul 17, 22:20 UTC2h 30m
2026-07-17 DAL2632 - Jul 17, 15:29 UTCJul 17, 17:20 UTC1h 50m
2026-07-17 DAL2632 OMA → ATL Jul 17, 15:25 UTCJul 17, 17:14 UTC1h 49m
2026-07-17 DAL2632 - Jul 17, 12:15 UTCJul 17, 14:00 UTC1h 45m
2026-07-16 DAL2490 OKC → ATL Jul 16, 17:05 UTCJul 16, 18:44 UTC1h 40m

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 N363NB page for operator, model, and routing details .

Mode-S A4189F frequently asked

What is Mode-S code A4189F?
A4189F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N363NB.
Where is Mode-S A4189F registered?
Mode-S code A4189F 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 A4189F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4189F, octal 51014237, decimal 10,754,207.
What flights does A4189F operate?
Mode-S A4189F has broadcast 20 distinct callsigns, including DAL2659, DAL946, DAL2282, DAL1218, DAL2816.