Apparatus

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sensors Mode-S transponder

A49D22

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N397DN · AIRBUS A-321 · operated by DELTA AIR LINES INC

Hex
A49D22
Octal
51116442
Decimal
10,788,130
Country
US
Tail
N397DN
Type
A321
Broadcasting now · callsign DAL819A · 31,975 ft
Flights observed
465
Distinct callsigns
20
Country
US
Last broadcast
5h ago

Current position

A49D22 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A49D22 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
DAL1580 - 11 2026-07-06
DAL2887 - 10 2026-07-06
DAL2321 - 9 2026-06-27
DAL1791 - 6 2026-06-30
DAL1177 - 6 2026-07-09
DAL582 Delta Air Lines 5 2026-06-08
DAL2694 Delta Air Lines 5 2026-05-28
DAL1455 - 5 2026-06-13
DAL1413 - 5 2026-07-12
DAL1349 Delta Air Lines 5 2026-04-13
DAL994 - 4 2026-06-27
DAL975 Delta Air Lines 4 2026-04-28
DAL706 Delta Air Lines 4 2026-06-11
DAL525 - 4 2026-06-30
DAL346 - 4 2026-06-17
DAL308 - 4 2026-07-01
DAL2965 Delta Air Lines 4 2026-04-14
DAL2936 - 4 2026-07-09
DAL2877 - 4 2026-06-24
DAL2852 - 4 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 DAL1803 ATL → ATL Jul 13, 14:05 UTCJul 13, 22:15 UTC8h 10m
2026-07-13 DAL1200 ROC → ATL Jul 13, 10:15 UTCJul 13, 11:55 UTC1h 40m
2026-07-13 DAL2472 ATL → ROC Jul 13, 03:03 UTCJul 13, 04:45 UTC1h 42m
2026-07-13 DAL2472 ATL → ROC Jul 13, 03:05 UTCJul 13, 04:50 UTC1h 45m
2026-07-12 DAL1413 - Jul 12, 21:55 UTCJul 12, 23:50 UTC1h 55m
2026-07-12 DAL1413 FLL → ATL Jul 12, 21:54 UTCJul 12, 23:45 UTC1h 51m
2026-07-12 DAL1413 ATL → FLL Jul 12, 17:55 UTCJul 12, 19:35 UTC1h 40m
2026-07-12 DAL1089 RSW → ATL Jul 12, 15:01 UTCJul 12, 16:15 UTC1h 15m
2026-07-12 DAL1089 ATL → RSW Jul 12, 12:15 UTCJul 12, 13:40 UTC1h 25m
2026-07-11 DAL824 DEN → ATL Jul 11, 19:25 UTCJul 11, 22:01 UTC2h 35m
2026-07-11 DAL2927 MSP → DEN Jul 11, 16:10 UTCJul 11, 17:45 UTC1h 35m
2026-07-11 DAL2254 - Jul 11, 13:15 UTCJul 11, 14:15 UTC1h 0m
2026-07-11 DAL2941 - Jul 11, 05:31 UTCJul 11, 05:40 UTC10m
2026-07-11 DAL2941 - Jul 11, 03:50 UTCJul 11, 04:55 UTC1h 5m
2026-07-11 DAL2941 MSP → BIL Jul 11, 03:50 UTCJul 11, 05:31 UTC1h 41m
2026-07-10 DAL2274 PHX → MSP Jul 10, 23:20 UTCJul 11, 02:00 UTC2h 40m
2026-07-10 DAL2274 MSP → PHX Jul 10, 19:15 UTCJul 10, 21:55 UTC2h 41m
2026-07-10 DAL2178 ATL → EWR Jul 10, 13:25 UTCJul 10, 16:30 UTC3h 5m
2026-07-10 DAL2178 ATL → EWR Jul 10, 13:21 UTCJul 10, 16:29 UTC3h 8m
2026-07-10 DAL2809 MSP → SFO Jul 10, 00:40 UTCJul 10, 04:15 UTC3h 35m
2026-07-09 DAL2936 SLC → MSP Jul 9, 20:05 UTCJul 9, 22:10 UTC2h 5m
2026-07-09 DAL2936 SLC → MSP Jul 9, 20:05 UTCJul 9, 22:09 UTC2h 4m
2026-07-09 DAL1177 - Jul 9, 17:10 UTCJul 9, 18:30 UTC1h 20m
2026-07-09 DAL1177 SAN → SLC Jul 9, 17:08 UTCJul 9, 18:36 UTC1h 28m
2026-07-09 DAL1177 - Jul 9, 13:55 UTCJul 9, 15:25 UTC1h 30m
2026-07-09 DAL453 ATL → SLC Jul 9, 02:35 UTCJul 9, 06:05 UTC3h 30m
2026-07-08 DAL964 LGA → ATL Jul 8, 22:25 UTCJul 9, 00:15 UTC1h 50m
2026-07-08 DAL524 ATL → LGA Jul 8, 19:15 UTCJul 8, 20:55 UTC1h 40m
2026-07-08 DAL1510 MIA → ATL Jul 8, 16:20 UTCJul 8, 17:40 UTC1h 20m
2026-07-08 DAL1510 MIA → ATL Jul 8, 16:15 UTCJul 8, 17:40 UTC1h 25m
2026-07-08 DAL1510 MIA → ATL Jul 8, 13:05 UTCJul 8, 14:30 UTC1h 25m
2026-07-07 DAL1413 PPM → ATL Jul 7, 21:25 UTCJul 7, 22:45 UTC1h 20m
2026-07-07 DAL1413 ATL → FLL Jul 7, 18:10 UTCJul 7, 19:45 UTC1h 35m
2026-07-07 DAL1334 SAN → SEA Jul 7, 14:10 UTCJul 7, 15:25 UTC1h 15m
2026-07-07 DAL1334 SAN → SEA Jul 7, 14:05 UTCJul 7, 15:24 UTC1h 19m
2026-07-07 DAL1334 SAN → SEA Jul 7, 11:10 UTCJul 7, 12:35 UTC1h 25m
2026-07-07 DAL9755 - Jul 7, 05:35 UTCJul 7, 07:45 UTC2h 10m
2026-07-07 DAL9755 BOS → ATL Jul 7, 05:32 UTCJul 7, 07:41 UTC2h 9m
2026-07-07 DAL888 MCO → BOS Jul 7, 02:05 UTCJul 7, 04:30 UTC2h 25m
2026-07-06 DAL2887 BNH → MCO Jul 6, 20:25 UTCJul 6, 23:00 UTC2h 35m
2026-07-06 DAL2887 BOS → MCO Jul 6, 20:24 UTCJul 6, 22:53 UTC2h 29m
2026-07-06 DAL1580 MCO → BOS Jul 6, 15:35 UTCJul 6, 18:05 UTC2h 30m
2026-07-06 DAL1580 - Jul 6, 11:20 UTCJul 6, 13:55 UTC2h 35m
2026-07-06 DAL888 - Jul 6, 04:40 UTCJul 6, 06:00 UTC1h 20m
2026-07-06 DAL888 - Jul 6, 00:40 UTCJul 6, 03:10 UTC2h 30m
2026-07-05 DAL2887 BOS → MCO Jul 5, 20:20 UTCJul 5, 22:55 UTC2h 35m
2026-07-05 DAL2887 BOS → MCO Jul 5, 20:18 UTCJul 5, 22:59 UTC2h 41m
2026-07-05 DAL1580 - Jul 5, 16:15 UTCJul 5, 18:35 UTC2h 20m
2026-07-05 DAL1580 - Jul 5, 12:20 UTCJul 5, 14:50 UTC2h 30m
2026-07-04 DAL1707 PHL → DTW Jul 4, 22:10 UTCJul 4, 23:50 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 N397DN page for operator, model, and routing details .

Mode-S A49D22 frequently asked

What is Mode-S code A49D22?
A49D22 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N397DN.
Where is Mode-S A49D22 registered?
Mode-S code A49D22 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 A49D22 broadcasting right now?
Yes. Mode-S A49D22 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A49D22, octal 51116442, decimal 10,788,130.
What flights does A49D22 operate?
Mode-S A49D22 has broadcast 20 distinct callsigns, including DAL1580, DAL2887, DAL2321, DAL1791, DAL1177.