Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A0F46F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N1603 · BOEING 767-300 · operated by DELTA AIR LINES INC

Hex
A0F46F
Octal
50172157
Decimal
10,548,335
Country
US
Tail
N1603
Type
B763
No current signal · last broadcast Jul 26, 19:05 UTC
Flights observed
334
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 19:05 UTC

Last known position

Most recent position reported by Mode-S A0F46F.

Country allocation

The ICAO 24-bit address A0F46F 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
DAL244 Delta Air Lines 24 2026-06-04
DAL245 Delta Air Lines 23 2026-06-05
DAL668 Delta Air Lines 16 2026-07-25
DAL233 - 15 2026-06-14
DAL232 - 15 2026-06-13
DAL416 Delta Air Lines 14 2026-07-21
DAL141 - 11 2026-07-20
DAL140 - 10 2026-07-19
DAL981 - 9 2026-07-16
DAL980 - 9 2026-07-17
DAL35 - 9 2026-07-05
DAL93 - 8 2026-06-29
DAL246 - 7 2026-06-28
DAL208 Delta Air Lines 7 2026-07-04
DAL463 - 6 2026-06-20
DAL247 Delta Air Lines 6 2026-06-28
DAL204 Delta Air Lines 6 2026-05-12
DAL713 Delta Air Lines 5 2026-07-24
DAL683 - 5 2026-06-20
DAL480 - 5 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL115 BCN → ATL Jul 26, 12:15 UTCJul 26, 18:50 UTC6h 35m
2026-07-26 DAL114 SEA → CDG Jul 26, 03:15 UTCJul 26, 09:30 UTC6h 16m
2026-07-25 DAL668 JFK → LAS Jul 25, 19:05 UTCJul 25, 23:55 UTC4h 50m
2026-07-25 DAL668 JFK → LAS Jul 25, 11:25 UTCJul 25, 16:55 UTC5h 30m
2026-07-25 DAL960 SLC → CVG Jul 25, 04:15 UTCJul 25, 09:00 UTC4h 45m
2026-07-24 DAL713 BOS → LAX Jul 24, 12:13 UTCJul 24, 17:31 UTC5h 18m
2026-07-24 DAL713 BOS → LAX Jul 24, 12:15 UTCJul 24, 17:40 UTC5h 25m
2026-07-23 DAL668 JFK → LAS Jul 23, 18:50 UTCJul 23, 23:35 UTC4h 45m
2026-07-23 DAL668 JFK → LAS Jul 23, 11:25 UTCJul 23, 17:05 UTC5h 40m
2026-07-22 DAL991 LAX → JFK Jul 22, 22:10 UTCJul 23, 02:55 UTC4h 45m
2026-07-22 DAL501 ATL → LAX Jul 22, 14:50 UTCJul 22, 18:40 UTC3h 50m
2026-07-22 DAL632 UIO → ATL Jul 22, 06:11 UTCJul 22, 10:57 UTC4h 46m
2026-07-21 DAL633 ATL → UIO Jul 21, 19:05 UTCJul 22, 10:25 UTC15h 20m
2026-07-21 DAL416 ATL → EWR Jul 21, 05:45 UTCJul 21, 12:10 UTC6h 25m
2026-07-20 DAL416 ATL → EWR Jul 20, 20:25 UTCJul 21, 03:25 UTC7h 0m
2026-07-20 DAL141 - Jul 20, 09:30 UTCJul 20, 18:00 UTC8h 30m
2026-07-20 DAL141 BRU → ATL Jul 20, 09:26 UTCJul 20, 18:00 UTC8h 34m
2026-07-19 DAL140 ATL → BRU Jul 19, 23:10 UTCJul 20, 07:20 UTC8h 10m
2026-07-19 DAL416 - Jul 19, 07:30 UTCJul 19, 13:45 UTC6h 15m
2026-07-19 DAL416 ANC → ATL Jul 19, 07:30 UTCJul 19, 13:51 UTC6h 21m
2026-07-18 DAL416 ATL → ANC Jul 18, 20:05 UTCJul 19, 03:05 UTC7h 0m
2026-07-18 DAL141 BRU → ATL Jul 18, 09:02 UTCJul 18, 17:51 UTC8h 49m
2026-07-18 DAL141 - Jul 18, 09:05 UTCJul 18, 17:50 UTC8h 45m
2026-07-17 DAL140 ATL → BRU Jul 17, 22:19 UTCJul 18, 06:39 UTC8h 20m
2026-07-17 DAL140 ATL → BRU Jul 17, 22:20 UTCJul 18, 06:50 UTC8h 31m
2026-07-17 DAL980 BOG → ATL Jul 17, 14:07 UTCJul 17, 18:17 UTC4h 10m
2026-07-17 DAL980 BOG → ATL Jul 17, 14:10 UTCJul 17, 18:15 UTC4h 5m
2026-07-16 DAL981 - Jul 16, 19:50 UTCJul 16, 23:44 UTC3h 55m
2026-07-16 DAL981 ATL → BOG Jul 16, 19:46 UTCJul 17, 00:22 UTC4h 36m
2026-07-16 DAL1213 MCO → ATL Jul 16, 15:19 UTCJul 16, 16:15 UTC55m
2026-07-16 DAL1213 ATL → MCO Jul 16, 12:55 UTCJul 16, 14:00 UTC1h 5m
2026-07-16 DAL416 ANC → ATL Jul 16, 04:25 UTCJul 16, 10:50 UTC6h 25m
2026-07-16 DAL416 ATL → ANC Jul 16, 04:20 UTCJul 16, 10:47 UTC6h 27m
2026-07-15 DAL416 ATL → ANC Jul 15, 19:35 UTCJul 16, 02:35 UTC7h 0m
2026-07-15 DAL141 BRU → ATL Jul 15, 07:55 UTCJul 15, 16:45 UTC8h 50m
2026-07-14 DAL140 ATL → BRU Jul 14, 21:30 UTCJul 15, 05:50 UTC8h 19m
2026-07-14 DAL140 ATL → BRU Jul 14, 21:30 UTCJul 15, 05:47 UTC8h 17m
2026-07-14 DAL980 - Jul 14, 17:05 UTCJul 14, 18:45 UTC1h 40m
2026-07-13 DAL981 ATL → BOG Jul 13, 19:45 UTCJul 14, 00:00 UTC4h 15m
2026-07-13 DAL632 UIO → ATL Jul 13, 06:08 UTCJul 13, 10:52 UTC4h 44m
2026-07-12 DAL633 - Jul 12, 19:35 UTCJul 12, 22:40 UTC3h 5m
2026-07-12 DAL416 ANC → ATL Jul 12, 05:55 UTCJul 12, 12:15 UTC6h 20m
2026-07-11 DAL416 ATL → ANC Jul 11, 21:25 UTCJul 12, 04:35 UTC7h 10m
2026-07-11 DAL141 BRU → ATL Jul 11, 08:35 UTCJul 11, 17:44 UTC9h 9m
2026-07-11 DAL141 BRU → ATL Jul 11, 08:35 UTCJul 11, 18:20 UTC9h 45m
2026-07-11 DAL141 BRU → ATL Jul 11, 08:35 UTCJul 11, 18:23 UTC9h 48m
2026-07-10 DAL140 ATL → BRU Jul 10, 22:15 UTCJul 11, 06:20 UTC8h 5m
2026-07-10 DAL980 BOG → ATL Jul 10, 14:45 UTCJul 10, 19:00 UTC4h 15m
2026-07-09 DAL981 ATL → BOG Jul 9, 20:30 UTCJul 10, 00:45 UTC4h 15m
2026-07-09 DAL981 ATL → BOG Jul 9, 20:30 UTCJul 10, 00:45 UTC4h 15m

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 N1603 page for operator, model, and routing details .

Mode-S A0F46F frequently asked

What is Mode-S code A0F46F?
A0F46F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N1603.
Where is Mode-S A0F46F registered?
Mode-S code A0F46F 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 A0F46F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0F46F, octal 50172157, decimal 10,548,335.
What flights does A0F46F operate?
Mode-S A0F46F has broadcast 20 distinct callsigns, including DAL244, DAL245, DAL668, DAL233, DAL232.