Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AD0373

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N938AT · BOEING 717-200 · operated by DELTA AIR LINES INC

Hex
AD0373
Octal
53201563
Decimal
11,338,611
Country
US
Tail
N938AT
Type
B712
Broadcasting now · callsign DAL3156 · 5,525 ft
Flights observed
785
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:40 UTC

Current position

AD0373 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AD0373 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
DAL2232 - 11 2026-07-03
DAL3127 - 10 2026-06-25
DAL3043 - 10 2026-06-23
DAL2793 - 10 2026-07-13
DAL2094 Delta Air Lines 10 2026-06-22
DAL3186 Delta Air Lines 9 2026-07-24
DAL3096 - 9 2026-07-16
DAL1420 Delta Air Lines 9 2026-05-22
DAL3090 Delta Air Lines 8 2026-07-24
DAL1286 - 8 2026-07-15
DAL3182 - 7 2026-07-01
DAL3011 Delta Air Lines 7 2026-04-25
DAL2179 Delta Air Lines 7 2026-04-24
DAL1149 - 7 2026-07-19
DAL976 Delta Air Lines 6 2026-06-05
DAL3199 - 6 2026-07-17
DAL3195 Delta Air Lines 6 2026-05-24
DAL3163 - 6 2026-07-17
DAL3141 - 6 2026-07-17
DAL2837 Delta Air Lines 6 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL1343 ATL → MSP Jul 26, 22:00 UTCJul 26, 22:40 UTC40m
2026-07-26 DAL1343 ATL → MSP Jul 26, 19:55 UTCJul 26, 20:55 UTC1h 0m
2026-07-26 DAL2577 TPA → BOS Jul 26, 17:05 UTCJul 26, 18:20 UTC1h 15m
2026-07-26 DAL2577 TPA → BOS Jul 26, 17:05 UTCJul 26, 18:21 UTC1h 16m
2026-07-26 DAL2577 TPA → BOS Jul 26, 14:35 UTCJul 26, 15:50 UTC1h 15m
2026-07-26 DAL3006 RSW → DTW Jul 26, 11:50 UTCJul 26, 13:25 UTC1h 35m
2026-07-26 DAL2034 SLC → SJC Jul 26, 03:00 UTCJul 26, 03:25 UTC25m
2026-07-25 DAL2417 MSY → MSP Jul 25, 21:50 UTCJul 25, 23:10 UTC1h 20m
2026-07-25 DAL2417 MSY → MSP Jul 25, 19:20 UTCJul 25, 20:50 UTC1h 30m
2026-07-25 DAL1063 - Jul 25, 16:15 UTCJul 25, 17:50 UTC1h 35m
2026-07-25 DAL1063 ATL → MDW Jul 25, 13:50 UTCJul 25, 15:15 UTC1h 25m
2026-07-25 DAL3140 DAY → ATL Jul 25, 10:55 UTCJul 25, 12:05 UTC1h 10m
2026-07-25 DAL3167 ATL → DAY Jul 25, 03:10 UTCJul 25, 04:10 UTC1h 0m
2026-07-25 DAL3180 JAN → ATL Jul 25, 00:55 UTCJul 25, 01:40 UTC45m
2026-07-24 DAL3180 JAN → ATL Jul 24, 22:50 UTCJul 24, 23:30 UTC40m
2026-07-24 DAL2517 LGA → SRQ Jul 24, 20:05 UTCJul 24, 21:35 UTC1h 30m
2026-07-24 DAL2517 LGA → SRQ Jul 24, 17:00 UTCJul 24, 18:35 UTC1h 35m
2026-07-24 DAL3090 ATL → STL Jul 24, 14:20 UTCJul 24, 15:10 UTC50m
2026-07-24 DAL3090 ATL → STL Jul 24, 12:20 UTCJul 24, 13:00 UTC40m
2026-07-24 DAL3186 MEM → ATL Jul 24, 09:50 UTCJul 24, 10:30 UTC40m
2026-07-24 DAL3177 GPT → ATL Jul 24, 03:25 UTCJul 24, 04:05 UTC40m
2026-07-24 DAL2771 LGA → TPA Jul 24, 00:40 UTCJul 24, 02:10 UTC1h 30m
2026-07-24 DAL2771 LGA → TPA Jul 24, 00:35 UTCJul 24, 02:05 UTC1h 30m
2026-07-23 DAL2771 LGA → TPA Jul 23, 22:15 UTCJul 23, 23:35 UTC1h 20m
2026-07-23 DAL3193 - Jul 23, 20:00 UTCJul 23, 20:35 UTC35m
2026-07-23 DAL3193 - Jul 23, 18:15 UTCJul 23, 18:50 UTC35m
2026-07-23 DAL2754 HSV → ATL Jul 23, 15:20 UTCJul 23, 16:45 UTC1h 25m
2026-07-23 DAL2754 HSV → ATL Jul 23, 15:15 UTCJul 23, 16:45 UTC1h 30m
2026-07-23 DAL2754 HSV → ATL Jul 23, 12:50 UTCJul 23, 14:20 UTC1h 30m
2026-07-23 DAL2953 DCA → MCO Jul 23, 10:05 UTCJul 23, 11:15 UTC1h 10m
2026-07-23 DAL2435 ATL → MLB Jul 23, 02:30 UTCJul 23, 03:35 UTC1h 5m
2026-07-22 DAL1132 BOS → ATL Jul 22, 23:40 UTCJul 23, 00:15 UTC35m
2026-07-22 DAL1132 BOS → ATL Jul 22, 23:38 UTCJul 23, 00:16 UTC38m
2026-07-22 DAL1132 BOS → ATL Jul 22, 22:10 UTCJul 22, 22:30 UTC20m
2026-07-22 DAL1549 - Jul 22, 19:35 UTCJul 22, 20:20 UTC45m
2026-07-22 DAL1549 - Jul 22, 18:00 UTCJul 22, 18:40 UTC40m
2026-07-22 DAL1374 - Jul 22, 15:25 UTCJul 22, 16:25 UTC1h 0m
2026-07-22 DAL1374 ATL → SDF Jul 22, 13:20 UTCJul 22, 14:10 UTC50m
2026-07-22 DAL2953 DCA → MCO Jul 22, 10:15 UTCJul 22, 11:21 UTC1h 6m
2026-07-22 DAL2435 ATL → MLB Jul 22, 02:25 UTCJul 22, 03:30 UTC1h 5m
2026-07-21 DAL2599 ATL → MSN Jul 21, 22:30 UTCJul 22, 00:50 UTC2h 20m
2026-07-21 DAL2599 ATL → MSN Jul 21, 18:55 UTCJul 21, 20:40 UTC1h 45m
2026-07-21 DAL3052 - Jul 21, 16:40 UTCJul 21, 17:30 UTC50m
2026-07-21 DAL3052 - Jul 21, 14:40 UTCJul 21, 15:30 UTC50m
2026-07-21 DAL1680 - Jul 21, 11:35 UTCJul 21, 12:50 UTC1h 15m
2026-07-21 DAL1105 ATL → SGF Jul 21, 01:30 UTCJul 21, 02:55 UTC1h 25m
2026-07-20 DAL2037 TPA → BOS Jul 20, 23:40 UTCJul 21, 00:10 UTC30m
2026-07-20 DAL2037 TPA → BOS Jul 20, 23:36 UTCJul 21, 00:04 UTC28m
2026-07-20 DAL2037 TPA → BOS Jul 20, 22:00 UTCJul 20, 22:35 UTC35m
2026-07-20 DAL1017 ATL → JFK Jul 20, 17:05 UTCJul 20, 17:40 UTC35m

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 N938AT page for operator, model, and routing details .

Mode-S AD0373 frequently asked

What is Mode-S code AD0373?
AD0373 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N938AT.
Where is Mode-S AD0373 registered?
Mode-S code AD0373 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 AD0373 broadcasting right now?
Yes. Mode-S AD0373 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD0373, octal 53201563, decimal 11,338,611.
What flights does AD0373 operate?
Mode-S AD0373 has broadcast 20 distinct callsigns, including DAL2232, DAL3127, DAL3043, DAL2793, DAL2094.