sensors Mode-S transponder

ABD3CF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N861NW · AIRBUS A-330-200 · operated by DELTA AIR LINES INC

Hex
ABD3CF
Octal
52751717
Decimal
11,260,879
Country
US
Tail
N861NW
Type
A332
No current signal · last broadcast Jul 26, 19:30 UTC
Flights observed
271
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 19:30 UTC

Last known position

Most recent position reported by Mode-S ABD3CF.

Country allocation

The ICAO 24-bit address ABD3CF 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
DAL55 - 20 2026-07-22
DAL107 - 17 2026-07-20
DAL106 - 17 2026-07-20
DAL87 Delta Air Lines 16 2026-07-25
DAL23 - 16 2026-07-03
DAL54 Delta Air Lines 15 2026-07-21
DAL22 - 15 2026-07-02
DAL86 Delta Air Lines 14 2026-07-20
DAL258 - 13 2026-07-11
DAL14 Delta Air Lines 13 2026-07-24
DAL259 Delta Air Lines 12 2026-07-26
DAL293 - 10 2026-07-12
DAL2 - 10 2026-07-15
DAL15 Delta Air Lines 10 2026-07-21
DAL1 - 9 2026-07-14
DAL51 - 8 2026-07-14
DAL50 - 8 2026-07-15
DAL348 - 8 2026-04-17
DAL292 Delta Air Lines 8 2026-07-26
DAL1317 - 7 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL259 AMS → BOS Jul 26, 11:25 UTCJul 26, 19:10 UTC7h 45m
2026-07-26 DAL292 KIX → GUM Jul 26, 02:00 UTCJul 26, 07:45 UTC5h 46m
2026-07-26 DAL292 KIX → GUM Jul 26, 01:59 UTCJul 26, 08:32 UTC6h 33m
2026-07-25 DAL87 FRA → DTW Jul 25, 09:25 UTCJul 25, 17:40 UTC8h 15m
2026-07-24 DAL14 ATL → FRA Jul 24, 22:30 UTCJul 25, 01:35 UTC3h 5m
2026-07-24 DAL14 ATL → FRA Jul 24, 22:29 UTCJul 25, 06:47 UTC8h 18m
2026-07-23 DAL110 EZE → ATL Jul 23, 23:25 UTCJul 24, 09:00 UTC9h 35m
2026-07-23 DAL110 EZE → ATL Jul 23, 23:20 UTCJul 24, 08:58 UTC9h 38m
2026-07-23 DAL101 ATL → EZE Jul 23, 03:10 UTCJul 23, 12:50 UTC9h 40m
2026-07-22 DAL55 - Jul 22, 13:45 UTCJul 22, 14:35 UTC50m
2026-07-22 DAL55 LOS → ATL Jul 22, 11:21 UTCJul 22, 22:20 UTC10h 59m
2026-07-22 DAL55 - Jul 22, 05:25 UTCJul 22, 22:20 UTC16h 55m
2026-07-21 DAL55 - Jul 21, 21:50 UTCJul 22, 21:45 UTC23h 55m
2026-07-21 DAL54 ATL → LOS Jul 21, 21:30 UTCJul 21, 22:20 UTC50m
2026-07-21 DAL54 ATL → LOS Jul 21, 21:30 UTCJul 22, 08:55 UTC11h 25m
2026-07-21 DAL15 FRA → ATL Jul 21, 09:00 UTCJul 21, 18:35 UTC9h 35m
2026-07-20 DAL106 - Jul 20, 23:05 UTCJul 21, 06:10 UTC7h 4m
2026-07-20 DAL107 - Jul 20, 10:10 UTCJul 20, 18:00 UTC7h 50m
2026-07-20 DAL107 FRA → JFK Jul 20, 10:08 UTCJul 20, 18:01 UTC7h 53m
2026-07-20 DAL86 DTW → FRA Jul 20, 00:05 UTCJul 20, 02:20 UTC2h 15m
2026-07-20 DAL86 DTW → FRA Jul 20, 00:02 UTCJul 20, 07:55 UTC7h 53m
2026-07-19 DAL87 FRA → DTW Jul 19, 09:45 UTCJul 19, 18:13 UTC8h 28m
2026-07-19 DAL87 - Jul 19, 09:45 UTCJul 19, 11:45 UTC2h 0m
2026-07-18 DAL14 ATL → FRA Jul 18, 22:07 UTCJul 19, 06:45 UTC8h 38m
2026-07-18 DAL14 ATL → FRA Jul 18, 22:10 UTCJul 19, 06:40 UTC8h 30m
2026-07-17 DAL55 LOS → ATL Jul 17, 11:52 UTCJul 17, 22:56 UTC11h 4m
2026-07-17 DAL55 - Jul 17, 06:00 UTCJul 17, 23:14 UTC17h 15m
2026-07-16 DAL55 - Jul 16, 23:49 UTCJul 17, 23:14 UTC23h 25m
2026-07-16 DAL54 ATL → LOS Jul 16, 22:15 UTCJul 17, 15:05 UTC16h 50m
2026-07-16 DAL15 FRA → ATL Jul 16, 08:55 UTCJul 16, 18:00 UTC9h 5m
2026-07-16 DAL15 FRA → ATL Jul 16, 08:51 UTCJul 16, 17:56 UTC9h 5m
2026-07-15 DAL106 JFK → FRA Jul 15, 23:41 UTCJul 16, 06:48 UTC7h 7m
2026-07-15 DAL106 - Jul 15, 23:45 UTCJul 16, 05:45 UTC6h 0m
2026-07-15 DAL2 LHR → JFK Jul 15, 12:10 UTCJul 15, 19:20 UTC7h 10m
2026-07-15 DAL50 SLC → LHR Jul 15, 00:30 UTCJul 15, 09:55 UTC9h 25m
2026-07-14 DAL51 - Jul 14, 10:15 UTCJul 14, 19:55 UTC9h 40m
2026-07-14 DAL51 LHR → SLC Jul 14, 10:13 UTCJul 14, 19:48 UTC9h 35m
2026-07-14 DAL1 - Jul 14, 00:50 UTCJul 14, 07:40 UTC6h 50m
2026-07-13 DAL107 - Jul 13, 12:35 UTCJul 13, 14:35 UTC2h 0m
2026-07-13 DAL107 FRA → JFK Jul 13, 12:32 UTCJul 13, 20:22 UTC7h 50m
2026-07-13 DAL107 FRA → JFK Jul 13, 12:32 UTCJul 13, 20:15 UTC7h 43m
2026-07-13 DAL86 - Jul 13, 03:01 UTCJul 13, 10:45 UTC7h 45m
2026-07-12 DAL293 DUB → DTW Jul 12, 09:15 UTCJul 12, 16:15 UTC7h 0m
2026-07-12 DAL293 DUB → DTW Jul 12, 09:12 UTCJul 12, 16:11 UTC6h 59m
2026-07-11 DAL258 MSP → DUB Jul 11, 23:40 UTCJul 12, 06:40 UTC7h 0m
2026-07-11 DAL259 DUB → MSP Jul 11, 13:15 UTCJul 11, 20:50 UTC7h 35m
2026-07-11 DAL292 - Jul 11, 04:55 UTCJul 11, 06:55 UTC2h 0m
2026-07-11 DAL292 DTW → DUB Jul 11, 04:53 UTCJul 11, 11:10 UTC6h 17m
2026-07-10 DAL87 FRA → DTW Jul 10, 10:05 UTCJul 10, 18:40 UTC8h 35m
2026-07-10 DAL86 - Jul 10, 00:05 UTCJul 10, 07:40 UTC7h 35m

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 N861NW page for operator, model, and routing details .

Mode-S ABD3CF frequently asked

What is Mode-S code ABD3CF?
ABD3CF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N861NW.
Where is Mode-S ABD3CF registered?
Mode-S code ABD3CF 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 ABD3CF broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABD3CF, octal 52751717, decimal 11,260,879.
What flights does ABD3CF operate?
Mode-S ABD3CF has broadcast 20 distinct callsigns, including DAL55, DAL107, DAL106, DAL87, DAL23.