Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A44F0D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N377NW · AIRBUS A-320 · operated by DELTA AIR LINES INC

Hex
A44F0D
Octal
51047415
Decimal
10,768,141
Country
US
Tail
N377NW
Type
A320
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
549
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S A44F0D.

Country allocation

The ICAO 24-bit address A44F0D 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
DAL1375 Delta Air Lines 19 2026-07-26
DAL1682 - 14 2026-07-10
DAL1223 Delta Air Lines 13 2026-07-24
DAL2062 Delta Air Lines 12 2026-05-28
DAL1337 Delta Air Lines 12 2026-06-12
DAL2890 - 10 2026-07-01
DAL2690 Delta Air Lines 10 2026-07-26
DAL1585 - 10 2026-07-08
DAL2557 Delta Air Lines 8 2026-07-22
DAL2463 Delta Air Lines 8 2026-06-13
DAL1509 - 8 2026-07-01
DAL2991 Delta Air Lines 7 2026-07-21
DAL2383 Delta Air Lines 7 2026-06-16
DAL2051 Delta Air Lines 7 2026-07-22
DAL2009 Delta Air Lines 7 2026-04-30
DAL1377 Delta Air Lines 7 2026-06-11
DAL1319 Delta Air Lines 7 2026-06-11
DAL1027 - 7 2026-07-19
DAL2610 Delta Air Lines 6 2026-06-13
DAL2492 Delta Air Lines 6 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2690 ATL → SYR Jul 26, 20:00 UTCJul 26, 21:15 UTC1h 15m
2026-07-26 DAL1375 ATL → SYR Jul 26, 16:35 UTCJul 26, 18:15 UTC1h 40m
2026-07-26 DAL1375 ATL → SYR Jul 26, 13:25 UTCJul 26, 15:10 UTC1h 45m
2026-07-26 DAL2691 LGA → PBI Jul 26, 10:20 UTCJul 26, 11:55 UTC1h 35m
2026-07-26 DAL2948 ATL → GRB Jul 26, 02:20 UTCJul 26, 04:10 UTC1h 50m
2026-07-25 DAL2047 TPA → ATL Jul 25, 22:20 UTCJul 26, 00:00 UTC1h 40m
2026-07-25 DAL2047 TPA → ATL Jul 25, 19:30 UTCJul 25, 21:05 UTC1h 35m
2026-07-25 DAL839 DFW → ATL Jul 25, 15:55 UTCJul 25, 17:35 UTC1h 40m
2026-07-25 DAL839 DFW → ATL Jul 25, 12:50 UTCJul 25, 14:30 UTC1h 40m
2026-07-24 DAL2270 SLC → GEG Jul 24, 16:30 UTCJul 24, 18:05 UTC1h 35m
2026-07-24 DAL2270 SLC → GEG Jul 24, 13:10 UTCJul 24, 14:40 UTC1h 30m
2026-07-24 DAL1223 ATL → IAH Jul 24, 03:55 UTCJul 24, 05:25 UTC1h 30m
2026-07-24 DAL1223 ATL → IAH Jul 24, 02:10 UTCJul 24, 02:45 UTC35m
2026-07-23 DAL1223 ATL → IAH Jul 23, 22:25 UTCJul 24, 00:40 UTC2h 15m
2026-07-23 DAL1375 ATL → SYR Jul 23, 16:55 UTCJul 23, 18:50 UTC1h 55m
2026-07-23 DAL1375 ATL → SYR Jul 23, 13:55 UTCJul 23, 15:35 UTC1h 40m
2026-07-23 DAL2691 LGA → PBI Jul 23, 10:20 UTCJul 23, 11:55 UTC1h 35m
2026-07-23 DAL2948 ATL → GRB Jul 23, 01:45 UTCJul 23, 03:35 UTC1h 50m
2026-07-22 DAL2479 RDU → BOS Jul 22, 19:40 UTCJul 22, 22:00 UTC2h 20m
2026-07-22 DAL2479 RDU → BOS Jul 22, 19:34 UTCJul 22, 22:02 UTC2h 28m
2026-07-22 DAL2479 RDU → BOS Jul 22, 14:35 UTCJul 22, 16:45 UTC2h 10m
2026-07-22 DAL2557 SNA → SEA Jul 22, 11:20 UTCJul 22, 12:50 UTC1h 30m
2026-07-22 DAL2051 SLC → OAK Jul 22, 01:20 UTCJul 22, 02:50 UTC1h 30m
2026-07-21 DAL2991 SYR → ATL Jul 21, 20:15 UTCJul 21, 22:10 UTC1h 55m
2026-07-21 DAL2991 SYR → ATL Jul 21, 20:09 UTCJul 21, 22:11 UTC2h 2m
2026-07-21 DAL2991 SYR → ATL Jul 21, 17:10 UTCJul 21, 18:45 UTC1h 35m
2026-07-21 DAL1479 MCO → LGA Jul 21, 14:45 UTCJul 21, 15:50 UTC1h 5m
2026-07-21 DAL1479 MCO → LGA Jul 21, 14:39 UTCJul 21, 15:52 UTC1h 13m
2026-07-21 DAL1479 MCO → LGA Jul 21, 11:45 UTCJul 21, 12:55 UTC1h 10m
2026-07-20 DAL9896 LAX → LHR Jul 20, 17:00 UTCJul 20, 18:50 UTC1h 50m
2026-07-20 DAL9896 LAX → LHR Jul 20, 16:58 UTCJul 20, 18:47 UTC1h 49m
2026-07-19 DAL1027 ATL → ALB Jul 19, 00:55 UTCJul 19, 03:35 UTC2h 40m
2026-07-18 DAL998 MSP → ORD Jul 18, 12:50 UTCJul 18, 14:45 UTC1h 55m
2026-07-18 DAL2893 - Jul 18, 00:45 UTCJul 18, 02:40 UTC1h 55m
2026-07-17 DAL2537 BOS → RDU Jul 17, 20:55 UTCJul 17, 22:40 UTC1h 45m
2026-07-17 DAL2537 BOS → RDU Jul 17, 19:57 UTCJul 17, 22:35 UTC2h 38m
2026-07-17 DAL1996 - Jul 17, 16:10 UTCJul 17, 17:35 UTC1h 25m
2026-07-17 DAL1996 ATL → PLS Jul 17, 16:08 UTCJul 17, 18:35 UTC2h 27m
2026-07-17 DAL1157 - Jul 17, 12:04 UTCJul 17, 13:55 UTC1h 50m
2026-07-17 DAL1157 OMA → ATL Jul 17, 12:02 UTCJul 17, 13:52 UTC1h 50m
2026-07-17 DAL2010 - Jul 17, 03:45 UTCJul 17, 05:30 UTC1h 45m
2026-07-16 DAL1350 - Jul 16, 23:59 UTCJul 17, 01:15 UTC1h 15m
2026-07-16 DAL1350 CLE → ATL Jul 16, 23:58 UTCJul 17, 01:13 UTC1h 15m
2026-07-16 DAL1350 ATL → CLE Jul 16, 21:05 UTCJul 16, 22:25 UTC1h 20m
2026-07-16 DAL998 - Jul 16, 13:00 UTCJul 16, 14:50 UTC1h 50m
2026-07-15 DAL2893 ATL → SAT Jul 15, 23:37 UTCJul 16, 01:31 UTC1h 54m
2026-07-15 DAL2893 ATL → SAT Jul 15, 23:40 UTCJul 16, 01:40 UTC2h 0m
2026-07-15 DAL2991 - Jul 15, 20:35 UTCJul 15, 22:15 UTC1h 40m
2026-07-15 DAL2991 ATL → SYR Jul 15, 17:35 UTCJul 15, 19:20 UTC1h 45m
2026-07-15 DAL1479 - Jul 15, 15:05 UTCJul 15, 15:15 UTC10m

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 N377NW page for operator, model, and routing details .

Mode-S A44F0D frequently asked

What is Mode-S code A44F0D?
A44F0D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N377NW.
Where is Mode-S A44F0D registered?
Mode-S code A44F0D 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 A44F0D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A44F0D, octal 51047415, decimal 10,768,141.
What flights does A44F0D operate?
Mode-S A44F0D has broadcast 20 distinct callsigns, including DAL1375, DAL1682, DAL1223, DAL2062, DAL1337.