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 10h ago
Flights observed
296
Distinct callsigns
20
Country
US
Last broadcast
10h ago

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
DAL233 - 15 2026-06-14
DAL232 - 15 2026-06-13
DAL668 Delta Air Lines 12 2026-05-31
DAL35 - 9 2026-07-05
DAL93 - 8 2026-06-29
DAL981 - 7 2026-07-13
DAL246 - 7 2026-06-28
DAL208 Delta Air Lines 7 2026-07-04
DAL980 - 6 2026-07-10
DAL463 - 6 2026-06-20
DAL416 - 6 2026-07-12
DAL247 Delta Air Lines 6 2026-06-28
DAL204 Delta Air Lines 6 2026-05-12
DAL141 - 6 2026-07-11
DAL683 - 5 2026-06-20
DAL480 - 5 2026-06-16
DAL425 - 5 2026-06-19
DAL310 - 5 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-09 DAL141 BRU → ATL Jul 9, 08:15 UTCJul 9, 17:20 UTC9h 5m
2026-07-08 DAL140 - Jul 8, 22:05 UTCJul 9, 05:45 UTC7h 40m
2026-07-08 DAL140 ATL → BRU Jul 8, 22:01 UTCJul 9, 06:10 UTC8h 9m
2026-07-08 DAL980 - Jul 8, 18:05 UTCJul 8, 19:40 UTC1h 35m
2026-07-08 DAL981 ATL → BOG Jul 8, 01:05 UTCJul 8, 01:20 UTC15m
2026-07-07 DAL981 ATL → BOG Jul 7, 21:05 UTCJul 7, 22:40 UTC1h 35m
2026-07-07 DAL980 - Jul 7, 16:50 UTCJul 7, 18:25 UTC1h 35m
2026-07-07 DAL980 - Jul 7, 14:15 UTCJul 7, 14:30 UTC15m
2026-07-06 DAL981 ATL → BOG Jul 6, 19:50 UTCJul 7, 00:00 UTC4h 10m
2026-07-06 DAL416 ANC → ATL Jul 6, 04:20 UTCJul 6, 10:50 UTC6h 30m
2026-07-05 DAL416 ATL → ANC Jul 5, 19:35 UTCJul 6, 02:30 UTC6h 55m
2026-07-05 DAL35 - Jul 5, 08:35 UTCJul 5, 15:45 UTC7h 10m
2026-07-05 DAL35 EDI → ATL Jul 5, 08:35 UTCJul 5, 16:48 UTC8h 13m
2026-07-05 DAL122 BOS → EDI Jul 5, 00:06 UTCJul 5, 05:38 UTC5h 32m
2026-07-05 DAL122 BOS → EDI Jul 5, 00:10 UTCJul 5, 05:35 UTC5h 25m
2026-07-04 DAL123 EDI → BOS Jul 4, 10:35 UTCJul 4, 17:15 UTC6h 40m
2026-07-04 DAL208 JFK → EDI Jul 4, 02:38 UTCJul 4, 08:35 UTC5h 57m
2026-07-04 DAL208 JFK → EDI Jul 4, 02:40 UTCJul 4, 04:05 UTC1h 25m
2026-07-03 DAL209 EDI → JFK Jul 3, 13:20 UTCJul 3, 20:30 UTC7h 10m
2026-07-03 DAL34 ATL → EDI Jul 3, 03:15 UTCJul 3, 10:30 UTC7h 15m
2026-07-02 DAL35 EDI → ATL Jul 2, 08:15 UTCJul 2, 16:40 UTC8h 25m
2026-07-02 DAL35 EDI → ATL Jul 2, 08:13 UTCJul 2, 16:36 UTC8h 23m
2026-07-01 DAL122 BOS → EDI Jul 1, 23:50 UTCJul 2, 05:35 UTC5h 45m
2026-07-01 DAL123 EDI → BOS Jul 1, 11:15 UTCJul 1, 17:50 UTC6h 35m
2026-07-01 DAL208 JFK → EDI Jul 1, 01:50 UTCJul 1, 07:50 UTC6h 0m
2026-06-30 DAL405 - Jun 30, 14:10 UTCJun 30, 19:10 UTC5h 0m
2026-06-30 DAL405 SFO → JFK Jun 30, 14:10 UTCJun 30, 19:06 UTC4h 56m
2026-06-29 DAL679 - Jun 29, 19:20 UTCJun 30, 00:55 UTC5h 35m
2026-06-29 DAL93 - Jun 29, 08:44 UTCJun 29, 16:44 UTC8h 0m
2026-06-29 DAL93 BER → JFK Jun 29, 08:43 UTCJun 29, 16:46 UTC8h 3m
2026-06-28 DAL92 - Jun 28, 23:14 UTCJun 29, 06:24 UTC7h 10m
2026-06-28 DAL247 KEF → JFK Jun 28, 11:39 UTCJun 28, 17:00 UTC5h 20m
2026-06-28 DAL247 KEF → JFK Jun 28, 11:37 UTCJun 28, 16:56 UTC5h 19m
2026-06-28 DAL246 JFK → KEF Jun 28, 04:10 UTCJun 28, 09:15 UTC5h 5m
2026-06-27 DAL691 - Jun 27, 20:34 UTCJun 28, 01:19 UTC4h 45m
2026-06-27 DAL672 ATL → SFO Jun 27, 13:55 UTCJun 27, 18:39 UTC4h 45m
2026-06-27 DAL416 - Jun 27, 04:44 UTCJun 27, 09:44 UTC5h 0m
2026-06-26 DAL416 ATL → ANC Jun 26, 19:55 UTCJun 27, 02:39 UTC6h 45m

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 10h ago.
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, DAL233, DAL232, DAL668.