Apparatus

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sensors Mode-S transponder

A3F120

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N353NB · AIRBUS A-319 · operated by DELTA AIR LINES INC

Hex
A3F120
Octal
50770440
Decimal
10,744,096
Country
US
Tail
N353NB
Type
A319
Broadcasting now · callsign DAL2567 · 11,425 ft
Flights observed
495
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

A3F120 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A3F120 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
DAL1075 - 22 2026-07-09
DAL2351 - 19 2026-07-09
DAL2283 - 19 2026-07-09
DAL1275 - 19 2026-07-08
DAL2305 Delta Air Lines 15 2026-05-18
DAL1279 Delta Air Lines 12 2026-05-27
DAL2659 Delta Air Lines 11 2026-04-20
DAL2147 - 10 2026-04-21
DAL1043 - 9 2026-06-28
DAL1038 Delta Air Lines 9 2026-05-27
DAL1077 - 8 2026-07-04
DAL487 Delta Air Lines 7 2026-07-03
DAL1281 Delta Air Lines 7 2026-04-19
DAL1018 Delta Air Lines 7 2026-05-27
DAL1003 Delta Air Lines 7 2026-06-07
DAL3135 Delta Air Lines 6 2026-07-01
DAL2934 - 6 2026-07-13
DAL2632 Delta Air Lines 6 2026-04-20
DAL1529 - 6 2026-06-29
DAL1253 - 6 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL2567 - Jul 14, 22:30 UTCJul 14, 23:45 UTC1h 14m
2026-07-14 DAL1557 BNA → DTW Jul 14, 19:05 UTCJul 14, 20:15 UTC1h 10m
2026-07-14 DAL1557 - Jul 14, 16:35 UTCJul 14, 17:50 UTC1h 15m
2026-07-14 DAL1558 DCA → DTW Jul 14, 13:50 UTCJul 14, 14:50 UTC1h 0m
2026-07-14 DAL1558 DTW → DCA Jul 14, 11:30 UTCJul 14, 12:35 UTC1h 5m
2026-07-14 DAL1253 JFK → DTW Jul 14, 00:47 UTCJul 14, 02:00 UTC1h 13m
2026-07-14 DAL1253 - Jul 14, 00:50 UTCJul 14, 02:00 UTC1h 10m
2026-07-13 DAL2934 - Jul 13, 20:50 UTCJul 13, 22:10 UTC1h 20m
2026-07-13 DAL2265 - Jul 13, 17:10 UTCJul 13, 18:20 UTC1h 10m
2026-07-13 DAL2118 BOS → RDU Jul 13, 14:05 UTCJul 13, 15:35 UTC1h 30m
2026-07-13 DAL1054 - Jul 13, 11:15 UTCJul 13, 12:45 UTC1h 30m
2026-07-13 DAL817 BOS → RDU Jul 13, 01:15 UTCJul 13, 02:50 UTC1h 35m
2026-07-12 DAL1022 - Jul 12, 15:40 UTCJul 12, 17:01 UTC1h 20m
2026-07-12 DAL1022 RDU → BOS Jul 12, 15:37 UTCJul 12, 17:01 UTC1h 24m
2026-07-12 DAL2066 BOS → RDU Jul 12, 12:50 UTCJul 12, 14:25 UTC1h 35m
2026-07-12 DAL2066 BOS → RDU Jul 12, 12:48 UTCJul 12, 14:20 UTC1h 32m
2026-07-11 DAL1683 BZN → BOS Jul 11, 21:32 UTCJul 12, 01:27 UTC3h 55m
2026-07-11 DAL1683 BOS → BOS Jul 11, 16:15 UTCJul 12, 01:20 UTC9h 5m
2026-07-11 DAL2785 - Jul 11, 13:00 UTCJul 11, 14:55 UTC1h 55m
2026-07-11 DAL2785 CHS → BOS Jul 11, 12:57 UTCJul 11, 14:49 UTC1h 52m
2026-07-10 DAL2785 - Jul 10, 16:45 UTCJul 10, 18:50 UTC2h 5m
2026-07-10 DAL2785 BOS → CHS Jul 10, 16:44 UTCJul 10, 18:50 UTC2h 6m
2026-07-10 DAL2509 - Jul 10, 13:20 UTCJul 10, 15:25 UTC2h 5m
2026-07-10 DAL2586 BOS → BNA Jul 10, 00:05 UTCJul 10, 02:25 UTC2h 20m
2026-07-09 DAL1075 - Jul 9, 20:30 UTCJul 9, 22:00 UTC1h 30m
2026-07-09 DAL1075 RDU → BOS Jul 9, 20:29 UTCJul 9, 21:59 UTC1h 30m
2026-07-09 DAL2283 BOS → RDU Jul 9, 17:10 UTCJul 9, 18:40 UTC1h 30m
2026-07-09 DAL2351 DFW → BOS Jul 9, 12:25 UTCJul 9, 15:45 UTC3h 20m
2026-07-09 DAL2351 DFW → BOS Jul 9, 12:23 UTCJul 9, 15:42 UTC3h 19m
2026-07-09 DAL1207 - Jul 9, 01:00 UTCJul 9, 03:15 UTC2h 15m
2026-07-08 DAL2358 RSW → BOS Jul 8, 22:35 UTCJul 8, 23:30 UTC55m
2026-07-08 DAL2358 RSW → BOS Jul 8, 20:15 UTCJul 8, 20:55 UTC40m
2026-07-08 DAL2265 - Jul 8, 17:35 UTCJul 8, 18:45 UTC1h 10m
2026-07-08 DAL2118 BOS → RDU Jul 8, 14:10 UTCJul 8, 15:40 UTC1h 30m
2026-07-08 DAL2118 BOS → RDU Jul 8, 14:06 UTCJul 8, 15:38 UTC1h 32m
2026-07-08 DAL1054 ALB → ATL Jul 8, 11:10 UTCJul 8, 12:35 UTC1h 25m
2026-07-08 DAL1275 TPA → RDU Jul 8, 03:45 UTCJul 8, 05:05 UTC1h 20m
2026-07-08 DAL1275 TPA → RDU Jul 8, 03:45 UTCJul 8, 05:04 UTC1h 19m
2026-07-08 DAL1275 RDU → TPA Jul 8, 01:25 UTCJul 8, 02:50 UTC1h 25m
2026-07-07 DAL1407 - Jul 7, 21:00 UTCJul 7, 22:15 UTC1h 15m
2026-07-07 DAL2746 - Jul 7, 16:30 UTCJul 7, 18:35 UTC2h 5m
2026-07-07 DAL2746 DFW → DTW Jul 7, 16:27 UTCJul 7, 18:33 UTC2h 6m
2026-07-07 DAL2746 - Jul 7, 12:50 UTCJul 7, 15:05 UTC2h 15m
2026-07-07 DAL866 - Jul 7, 02:15 UTCJul 7, 04:40 UTC2h 25m
2026-07-06 DAL866 - Jul 6, 21:30 UTCJul 7, 00:00 UTC2h 30m
2026-07-06 DAL2265 - Jul 6, 17:15 UTCJul 6, 18:40 UTC1h 25m
2026-07-06 DAL2066 BOS → RDU Jul 6, 10:40 UTCJul 6, 12:15 UTC1h 35m
2026-07-05 DAL1683 BZN → BOS Jul 5, 18:43 UTCJul 5, 22:35 UTC3h 52m
2026-07-05 DAL1683 BNH → BOS Jul 5, 12:50 UTCJul 5, 22:40 UTC9h 50m
2026-07-04 DAL1075 - Jul 4, 21:00 UTCJul 4, 22:30 UTC1h 30m

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 N353NB page for operator, model, and routing details .

Mode-S A3F120 frequently asked

What is Mode-S code A3F120?
A3F120 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N353NB.
Where is Mode-S A3F120 registered?
Mode-S code A3F120 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 A3F120 broadcasting right now?
Yes. Mode-S A3F120 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3F120, octal 50770440, decimal 10,744,096.
What flights does A3F120 operate?
Mode-S A3F120 has broadcast 20 distinct callsigns, including DAL1075, DAL2351, DAL2283, DAL1275, DAL2305.