Apparatus

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sensors Mode-S transponder

ADECB6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N997AT · BOEING 717-200 · operated by DELTA AIR LINES INC

Hex
ADECB6
Octal
53366266
Decimal
11,398,326
Country
US
Tail
N997AT
Type
B712
No current signal · last broadcast 59m ago
Flights observed
663
Distinct callsigns
20
Country
US
Last broadcast
59m ago

Last known position

Most recent position reported by Mode-S ADECB6.

Country allocation

The ICAO 24-bit address ADECB6 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
DAL3171 - 9 2026-07-13
DAL2331 - 9 2026-07-07
DAL3012 Delta Air Lines 8 2026-06-09
DAL2826 Delta Air Lines 8 2026-05-26
DAL2822 - 8 2026-06-26
DAL2814 - 8 2026-06-19
DAL2573 - 8 2026-06-28
DAL3030 Delta Air Lines 7 2026-05-29
DAL2577 - 7 2026-06-16
DAL2480 - 7 2026-07-07
DAL1126 Delta Air Lines 7 2026-06-06
DAL3143 Delta Air Lines 6 2026-05-10
DAL3108 - 6 2026-07-13
DAL3039 Delta Air Lines 6 2026-05-31
DAL2741 - 6 2026-07-14
DAL2341 - 6 2026-06-26
DAL2232 - 6 2026-07-05
DAL2182 Delta Air Lines 6 2026-06-01
DAL1787 - 6 2026-06-29
DAL940 Delta Air Lines 5 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL2741 - Jul 14, 19:15 UTCJul 14, 20:45 UTC1h 30m
2026-07-14 DAL2741 - Jul 14, 16:45 UTCJul 14, 18:10 UTC1h 25m
2026-07-14 DAL1639 - Jul 14, 13:55 UTCJul 14, 15:05 UTC1h 10m
2026-07-14 DAL3144 - Jul 14, 11:50 UTCJul 14, 12:30 UTC40m
2026-07-14 DAL1235 - Jul 14, 00:40 UTCJul 14, 01:40 UTC1h 0m
2026-07-14 DAL1235 LEX → ATL Jul 14, 00:39 UTCJul 14, 01:41 UTC1h 2m
2026-07-13 DAL1235 ATL → LEX Jul 13, 23:05 UTCJul 13, 23:50 UTC45m
2026-07-13 DAL3193 - Jul 13, 20:45 UTCJul 13, 21:30 UTC45m
2026-07-13 DAL3193 - Jul 13, 18:35 UTCJul 13, 19:05 UTC30m
2026-07-13 DAL3108 - Jul 13, 15:15 UTCJul 13, 16:30 UTC1h 15m
2026-07-13 DAL3108 DAY → ATL Jul 13, 15:15 UTCJul 13, 16:29 UTC1h 14m
2026-07-13 DAL3108 ATL → DAY Jul 13, 13:10 UTCJul 13, 14:10 UTC1h 0m
2026-07-13 DAL2556 HSV → ATL Jul 13, 10:34 UTCJul 13, 11:05 UTC31m
2026-07-13 DAL3022 - Jul 13, 05:05 UTCJul 13, 05:40 UTC35m
2026-07-13 DAL3022 ATL → HSV Jul 13, 05:02 UTCJul 13, 05:34 UTC32m
2026-07-13 DAL3171 - Jul 13, 03:05 UTCJul 13, 03:40 UTC35m
2026-07-13 DAL3171 ATL → HSV Jul 13, 01:01 UTCJul 13, 01:55 UTC55m
2026-07-12 DAL3163 - Jul 12, 22:15 UTCJul 12, 22:50 UTC35m
2026-07-12 DAL3163 BHM → ATL Jul 12, 22:11 UTCJul 12, 22:47 UTC36m
2026-07-12 DAL3163 - Jul 12, 19:50 UTCJul 12, 20:15 UTC25m
2026-07-12 DAL1017 - Jul 12, 17:45 UTCJul 12, 18:30 UTC45m
2026-07-12 DAL1017 - Jul 12, 16:15 UTCJul 12, 16:40 UTC25m
2026-07-12 DAL3183 - Jul 12, 14:30 UTCJul 12, 15:15 UTC45m
2026-07-12 DAL3117 - Jul 12, 05:05 UTCJul 12, 05:45 UTC40m
2026-07-12 DAL1085 - Jul 12, 02:30 UTCJul 12, 03:20 UTC50m
2026-07-12 DAL3017 - Jul 12, 00:30 UTCJul 12, 01:15 UTC45m
2026-07-11 DAL1067 SAV → ATL Jul 11, 22:15 UTCJul 11, 23:00 UTC45m
2026-07-11 DAL1067 ATL → SAV Jul 11, 18:00 UTCJul 11, 18:50 UTC50m
2026-07-11 DAL3108 - Jul 11, 15:25 UTCJul 11, 16:40 UTC1h 15m
2026-07-11 DAL3108 DAY → ATL Jul 11, 15:22 UTCJul 11, 16:34 UTC1h 12m
2026-07-11 DAL3108 ATL → DAY Jul 11, 13:10 UTCJul 11, 14:15 UTC1h 5m
2026-07-11 DAL2275 - Jul 11, 11:20 UTCJul 11, 12:00 UTC40m
2026-07-11 DAL2275 CLT → ATL Jul 11, 11:15 UTCJul 11, 12:01 UTC46m
2026-07-11 DAL720 - Jul 11, 00:25 UTCJul 11, 01:05 UTC40m
2026-07-10 DAL2037 - Jul 10, 22:45 UTCJul 10, 23:20 UTC35m
2026-07-10 DAL2037 - Jul 10, 19:40 UTCJul 10, 20:15 UTC35m
2026-07-10 DAL1637 - Jul 10, 16:15 UTCJul 10, 17:55 UTC1h 40m
2026-07-10 DAL1637 ICT → ATL Jul 10, 16:11 UTCJul 10, 17:52 UTC1h 41m
2026-07-10 DAL1637 ATL → ICT Jul 10, 13:25 UTCJul 10, 15:10 UTC1h 45m
2026-07-10 DAL1721 - Jul 10, 11:15 UTCJul 10, 12:05 UTC50m
2026-07-10 DAL2029 - Jul 10, 03:35 UTCJul 10, 04:25 UTC50m
2026-07-10 DAL2758 - Jul 10, 01:00 UTCJul 10, 02:15 UTC1h 15m
2026-07-09 DAL2758 - Jul 9, 22:20 UTCJul 9, 23:45 UTC1h 25m
2026-07-09 DAL304 ABE → ATL Jul 9, 18:25 UTCJul 9, 20:05 UTC1h 40m
2026-07-09 DAL304 ATL → ABE Jul 9, 14:35 UTCJul 9, 16:15 UTC1h 40m
2026-07-09 DAL2116 TLH → ATL Jul 9, 12:19 UTCJul 9, 13:02 UTC43m
2026-07-08 DAL2241 ATL → TLH Jul 8, 23:45 UTCJul 9, 00:25 UTC40m
2026-07-08 DAL2730 - Jul 8, 21:15 UTCJul 8, 22:20 UTC1h 5m
2026-07-08 DAL2730 ATL → BTR Jul 8, 18:40 UTCJul 8, 19:45 UTC1h 5m
2026-07-08 DAL1286 - Jul 8, 16:10 UTCJul 8, 16:50 UTC40m

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 N997AT page for operator, model, and routing details .

Mode-S ADECB6 frequently asked

What is Mode-S code ADECB6?
ADECB6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N997AT.
Where is Mode-S ADECB6 registered?
Mode-S code ADECB6 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 ADECB6 broadcasting right now?
No active broadcast right now. Last signal was 59m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADECB6, octal 53366266, decimal 11,398,326.
What flights does ADECB6 operate?
Mode-S ADECB6 has broadcast 20 distinct callsigns, including DAL3171, DAL2331, DAL3012, DAL2826, DAL2822.