Apparatus

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sensors Mode-S transponder

A3A222

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N333NB · AIRBUS A-319 · operated by DELTA AIR LINES INC

Hex
A3A222
Octal
50721042
Decimal
10,723,874
Country
US
Tail
N333NB
Type
A319
No current signal · last broadcast 1h ago
Flights observed
483
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A3A222.

Country allocation

The ICAO 24-bit address A3A222 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
DAL2147 - 11 2026-07-03
DAL1701 Delta Air Lines 10 2026-04-20
DAL1558 - 8 2026-07-08
DAL2689 Delta Air Lines 7 2026-05-27
DAL2682 - 7 2026-07-05
DAL2551 - 7 2026-06-14
DAL1454 - 7 2026-06-24
DAL381 - 6 2026-06-26
DAL2585 Delta Air Lines 6 2026-06-02
DAL2363 Delta Air Lines 6 2026-05-27
DAL2358 Delta Air Lines 6 2026-06-24
DAL2314 Delta Air Lines 6 2026-05-08
DAL2975 Delta Air Lines 5 2026-06-13
DAL2855 - 5 2026-07-13
DAL2791 Delta Air Lines 5 2026-04-15
DAL2786 Delta Air Lines 5 2026-04-30
DAL2435 Delta Air Lines 5 2026-05-07
DAL2421 Delta Air Lines 5 2026-05-30
DAL2207 - 5 2026-07-14
DAL1690 Delta Air Lines 5 2026-04-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 DAL2728 - Jul 15, 00:45 UTCJul 15, 02:30 UTC1h 45m
2026-07-14 DAL1064 YVR → SLC Jul 14, 20:28 UTCJul 14, 22:20 UTC1h 52m
2026-07-14 DAL1064 - Jul 14, 20:30 UTCJul 14, 22:25 UTC1h 55m
2026-07-14 DAL1049 SLC → YVR Jul 14, 17:00 UTCJul 14, 18:45 UTC1h 45m
2026-07-14 DAL2207 - Jul 14, 11:40 UTCJul 14, 15:00 UTC3h 20m
2026-07-14 DAL2207 CLE → SLC Jul 14, 11:37 UTCJul 14, 14:56 UTC3h 19m
2026-07-13 DAL2855 SLC → CLE Jul 13, 23:35 UTCJul 14, 02:50 UTC3h 15m
2026-07-13 DAL1116 - Jul 13, 20:10 UTCJul 13, 21:35 UTC1h 25m
2026-07-13 DAL1116 LGB → SLC Jul 13, 20:08 UTCJul 13, 21:29 UTC1h 21m
2026-07-13 DAL1116 SLC → LGB Jul 13, 17:15 UTCJul 13, 18:45 UTC1h 30m
2026-07-13 DAL3135 LGB → SLC Jul 13, 14:20 UTCJul 13, 15:45 UTC1h 25m
2026-07-13 DAL3124 SLC → LGB Jul 13, 03:01 UTCJul 13, 04:25 UTC1h 25m
2026-07-13 DAL3124 SLC → LGB Jul 13, 03:00 UTCJul 13, 04:21 UTC1h 21m
2026-07-12 DAL417 SLC → SLC Jul 12, 22:00 UTCJul 13, 01:01 UTC3h 0m
2026-07-12 DAL2282 - Jul 12, 19:45 UTCJul 12, 20:15 UTC30m
2026-07-12 DAL2282 JAC → SLC Jul 12, 19:34 UTCJul 12, 20:10 UTC36m
2026-07-12 DAL2282 - Jul 12, 17:20 UTCJul 12, 17:40 UTC20m
2026-07-12 DAL2618 AUS → SLC Jul 12, 13:30 UTCJul 12, 15:50 UTC2h 20m
2026-07-12 DAL1077 SFO → AUS Jul 12, 03:25 UTCJul 12, 06:30 UTC3h 5m
2026-07-11 DAL1077 AUS → SFO Jul 11, 22:45 UTCJul 12, 01:50 UTC3h 5m
2026-07-11 DAL487 - Jul 11, 19:25 UTCJul 11, 21:30 UTC2h 5m
2026-07-11 DAL487 AUS → TPA Jul 11, 16:10 UTCJul 11, 18:20 UTC2h 10m
2026-07-11 DAL2728 SLC → AUS Jul 11, 00:00 UTCJul 11, 02:20 UTC2h 20m
2026-07-10 DAL1064 YVR → SLC Jul 10, 20:45 UTCJul 10, 22:30 UTC1h 45m
2026-07-10 DAL1049 SLC → YVR Jul 10, 17:15 UTCJul 10, 19:10 UTC1h 55m
2026-07-10 DAL2207 - Jul 10, 11:45 UTCJul 10, 15:20 UTC3h 35m
2026-07-09 DAL2855 SLC → CLE Jul 9, 23:45 UTCJul 10, 03:00 UTC3h 15m
2026-07-09 DAL2882 - Jul 9, 20:10 UTCJul 9, 22:20 UTC2h 10m
2026-07-09 DAL2882 - Jul 9, 16:50 UTCJul 9, 18:35 UTC1h 45m
2026-07-09 DAL2592 - Jul 9, 11:40 UTCJul 9, 14:05 UTC2h 25m
2026-07-09 DAL1365 - Jul 9, 00:45 UTCJul 9, 03:20 UTC2h 35m
2026-07-08 DAL1865 - Jul 8, 20:40 UTCJul 8, 23:00 UTC2h 20m
2026-07-08 DAL1864 - Jul 8, 17:00 UTCJul 8, 19:25 UTC2h 25m
2026-07-08 DAL1558 DCA → DTW Jul 8, 13:55 UTCJul 8, 14:55 UTC1h 0m
2026-07-08 DAL1558 - Jul 8, 11:20 UTCJul 8, 12:25 UTC1h 5m
2026-07-08 DAL2567 EWR → DTW Jul 8, 00:50 UTCJul 8, 01:55 UTC1h 5m
2026-07-07 DAL2567 - Jul 7, 22:15 UTCJul 7, 23:30 UTC1h 15m
2026-07-07 DAL1557 - Jul 7, 19:15 UTCJul 7, 20:15 UTC1h 0m
2026-07-07 DAL1557 - Jul 7, 16:45 UTCJul 7, 18:00 UTC1h 15m
2026-07-07 DAL2859 - Jul 7, 14:05 UTCJul 7, 15:30 UTC1h 25m
2026-07-07 DAL2859 - Jul 7, 11:20 UTCJul 7, 12:35 UTC1h 15m
2026-07-07 DAL2030 DCA → DTW Jul 7, 05:35 UTCJul 7, 06:30 UTC55m
2026-07-07 DAL2030 DCA → DTW Jul 7, 05:31 UTCJul 7, 06:32 UTC1h 1m
2026-07-06 DAL2030 - Jul 6, 23:20 UTCJul 7, 00:40 UTC1h 20m
2026-07-06 DAL1218 - Jul 6, 17:15 UTCJul 6, 19:30 UTC2h 15m
2026-07-06 DAL1218 - Jul 6, 13:25 UTCJul 6, 16:00 UTC2h 35m
2026-07-05 DAL2636 BGR → DTW Jul 5, 22:35 UTCJul 6, 00:30 UTC1h 55m
2026-07-05 DAL2636 - Jul 5, 19:25 UTCJul 5, 21:00 UTC1h 35m
2026-07-05 DAL2682 - Jul 5, 17:05 UTCJul 5, 18:10 UTC1h 5m
2026-07-05 DAL2682 BNA → DTW Jul 5, 17:01 UTCJul 5, 18:05 UTC1h 4m

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 N333NB page for operator, model, and routing details .

Mode-S A3A222 frequently asked

What is Mode-S code A3A222?
A3A222 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N333NB.
Where is Mode-S A3A222 registered?
Mode-S code A3A222 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 A3A222 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3A222, octal 50721042, decimal 10,723,874.
What flights does A3A222 operate?
Mode-S A3A222 has broadcast 20 distinct callsigns, including DAL2147, DAL1701, DAL1558, DAL2689, DAL2682.