sensors Mode-S transponder

A7E198

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N607DN · AIRBUS A-321neo · operated by DELTA AIR LINES INC

Hex
A7E198
Octal
51760630
Decimal
11,002,264
Country
US
Tail
N607DN
Type
A21N
Broadcasting now · callsign DAL571 · 31,975 ft
Flights observed
10
Distinct callsigns
5
Country
US
Last broadcast
16h ago

Current position

A7E198 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A7E198 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 5 distinct

Callsign Airline Flights Last seen
DAL892 Delta Air Lines 3 2026-04-13
DAL807 - 3 2026-04-13
DAL2036 - 2 2026-04-13
DAL745 Delta Air Lines 1 2026-04-13
DAL1373 - 1 2026-04-14

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 DAL1373 - Apr 14, 05:15 UTCApr 14, 06:45 UTC1h 30m
2026-04-13 DAL745 SLC → BOS Apr 13, 22:50 UTCApr 13, 23:45 UTC55m
2026-04-13 DAL2036 - Apr 13, 19:50 UTCApr 13, 21:10 UTC1h 20m
2026-04-13 DAL2036 - Apr 13, 17:05 UTCApr 13, 20:10 UTC3h 5m
2026-04-13 DAL892 LGA → PBI Apr 13, 12:20 UTCApr 13, 15:35 UTC3h 15m
2026-04-13 DAL892 LGA → PBI Apr 13, 11:55 UTCApr 13, 15:35 UTC3h 40m
2026-04-13 DAL892 LGA → PBI Apr 13, 10:31 UTCApr 13, 15:20 UTC4h 49m
2026-04-13 DAL807 - Apr 13, 00:20 UTCApr 13, 03:15 UTC2h 55m
2026-04-12 DAL807 - Apr 12, 23:55 UTCApr 13, 03:15 UTC3h 20m
2026-04-12 DAL807 - Apr 12, 17:15 UTCApr 12, 20:15 UTC3h 0m

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 N607DN page for operator, model, and routing details .

Mode-S A7E198 frequently asked

What is Mode-S code A7E198?
A7E198 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N607DN.
Where is Mode-S A7E198 registered?
Mode-S code A7E198 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 A7E198 broadcasting right now?
Yes. Mode-S A7E198 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7E198, octal 51760630, decimal 11,002,264.
What flights does A7E198 operate?
Mode-S A7E198 has broadcast 5 distinct callsigns, including DAL892, DAL807, DAL2036, DAL745, DAL1373.