Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A0F4B5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N1605 · BOEING 767-300 · operated by DELTA AIR LINES INC

Hex
A0F4B5
Octal
50172265
Decimal
10,548,405
Country
US
Tail
N1605
Type
B763
No current signal · last broadcast 7h ago
Flights observed
286
Distinct callsigns
20
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S A0F4B5.

Country allocation

The ICAO 24-bit address A0F4B5 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 - 16 2026-07-07
DAL219 - 13 2026-06-25
DAL218 - 13 2026-06-24
DAL92 - 12 2026-06-27
DAL245 - 12 2026-07-08
DAL93 - 10 2026-06-28
DAL232 - 10 2026-06-29
DAL45 - 9 2026-07-12
DAL233 - 9 2026-06-30
DAL155 - 9 2026-07-11
DAL960 - 8 2026-06-26
DAL668 Delta Air Lines 8 2026-07-06
DAL44 - 8 2026-07-10
DAL246 Delta Air Lines 8 2026-06-10
DAL154 - 8 2026-07-12
DAL767 - 7 2026-06-26
DAL679 - 7 2026-07-13
DAL405 - 7 2026-06-29
DAL247 Delta Air Lines 7 2026-06-10
DAL938 - 5 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 DAL679 - Jul 13, 19:35 UTCJul 14, 00:50 UTC5h 15m
2026-07-13 DAL205 ARN → JFK Jul 13, 08:55 UTCJul 13, 16:45 UTC7h 50m
2026-07-12 DAL204 JFK → ARN Jul 12, 22:27 UTCJul 13, 05:57 UTC7h 30m
2026-07-12 DAL204 - Jul 12, 22:30 UTCJul 13, 00:10 UTC1h 40m
2026-07-12 DAL45 DUB → JFK Jul 12, 12:40 UTCJul 12, 19:05 UTC6h 25m
2026-07-12 DAL154 - Jul 12, 04:01 UTCJul 12, 09:35 UTC5h 35m
2026-07-12 DAL154 BOS → DUB Jul 12, 03:58 UTCJul 12, 09:32 UTC5h 34m
2026-07-11 DAL155 - Jul 11, 14:30 UTCJul 11, 15:20 UTC50m
2026-07-11 DAL155 DUB → BOS Jul 11, 14:30 UTCJul 11, 21:05 UTC6h 35m
2026-07-11 DAL154 BOS → DUB Jul 11, 04:15 UTCJul 11, 09:40 UTC5h 25m
2026-07-10 DAL155 DUB → BOS Jul 10, 14:25 UTCJul 10, 21:00 UTC6h 35m
2026-07-10 DAL44 JFK → DUB Jul 10, 05:00 UTCJul 10, 10:45 UTC5h 45m
2026-07-10 DAL44 JFK → DUB Jul 10, 04:55 UTCJul 10, 10:41 UTC5h 46m
2026-07-09 DAL149 MLA → JFK Jul 9, 08:40 UTCJul 9, 17:55 UTC9h 15m
2026-07-08 DAL148 - Jul 8, 21:45 UTCJul 9, 06:40 UTC8h 55m
2026-07-08 DAL245 - Jul 8, 09:35 UTCJul 8, 18:40 UTC9h 5m
2026-07-07 DAL244 - Jul 7, 22:55 UTCJul 8, 07:25 UTC8h 30m
2026-07-07 DAL244 JFK → CTA Jul 7, 22:54 UTCJul 8, 07:22 UTC8h 28m
2026-07-07 DAL115 - Jul 7, 12:45 UTCJul 7, 13:25 UTC40m
2026-07-07 DAL115 OPO → JFK Jul 7, 12:43 UTCJul 7, 19:36 UTC6h 53m
2026-07-07 DAL114 JFK → OPO Jul 7, 04:30 UTCJul 7, 10:30 UTC6h 0m
2026-07-06 DAL668 JFK → LAS Jul 6, 20:40 UTCJul 7, 01:40 UTC5h 0m
2026-07-06 DAL668 JFK → LAS Jul 6, 11:15 UTCJul 6, 16:45 UTC5h 30m
2026-07-05 DAL9917 - Jul 5, 12:10 UTCJul 5, 20:05 UTC7h 55m
2026-07-05 DAL9917 CDG → JFK Jul 5, 12:07 UTCJul 5, 20:02 UTC7h 55m
2026-07-04 DAL217 - Jul 4, 09:40 UTCJul 4, 13:15 UTC3h 35m
2026-07-03 DAL216 JFK → DSS Jul 3, 23:10 UTCJul 4, 06:40 UTC7h 30m
2026-07-03 DAL45 DUB → JFK Jul 3, 12:34 UTCJul 3, 19:33 UTC6h 59m
2026-07-03 DAL45 DUB → JFK Jul 3, 12:35 UTCJul 3, 19:35 UTC7h 0m
2026-07-03 DAL154 BOS → DUB Jul 3, 04:27 UTCJul 3, 09:57 UTC5h 30m
2026-07-03 DAL154 BOS → DUB Jul 3, 04:30 UTCJul 3, 09:55 UTC5h 25m
2026-07-02 DAL123 EDI → BOS Jul 2, 10:40 UTCJul 2, 17:20 UTC6h 40m
2026-07-02 DAL123 EDI → BOS Jul 2, 10:39 UTCJul 2, 17:16 UTC6h 37m
2026-07-02 DAL208 JFK → EDI Jul 2, 02:00 UTCJul 2, 07:55 UTC5h 55m
2026-07-01 DAL245 - Jul 1, 08:15 UTCJul 1, 17:55 UTC9h 40m
2026-06-30 DAL244 - Jun 30, 20:55 UTCJul 1, 03:15 UTC6h 20m
2026-06-30 DAL244 JFK → CTA Jun 30, 20:53 UTCJul 1, 05:18 UTC8h 25m
2026-06-30 DAL233 - Jun 30, 08:45 UTCJun 30, 09:15 UTC30m
2026-06-30 DAL233 NAP → JFK Jun 30, 08:40 UTCJun 30, 18:01 UTC9h 21m
2026-06-29 DAL232 - Jun 29, 22:00 UTCJun 30, 06:05 UTC8h 6m
2026-06-29 DAL232 JFK → NAP Jun 29, 21:58 UTCJun 30, 06:22 UTC8h 24m
2026-06-29 DAL405 SFO → JFK Jun 29, 14:14 UTCJun 29, 19:09 UTC4h 55m
2026-06-28 DAL679 JFK → SFO Jun 28, 19:44 UTCJun 29, 01:20 UTC5h 35m
2026-06-28 DAL93 BER → JFK Jun 28, 08:00 UTCJun 28, 16:14 UTC8h 15m
2026-06-27 DAL92 JFK → BER Jun 27, 22:15 UTCJun 28, 05:15 UTC7h 0m
2026-06-27 DAL285 - Jun 27, 13:09 UTCJun 27, 13:40 UTC30m
2026-06-27 DAL285 SNN → JFK Jun 27, 13:08 UTCJun 27, 19:30 UTC6h 22m
2026-06-27 DAL284 - Jun 27, 05:39 UTCJun 27, 11:04 UTC5h 25m
2026-06-26 DAL938 LAX → JFK Jun 26, 22:49 UTCJun 27, 03:20 UTC4h 30m
2026-06-26 DAL767 JFK → LAX Jun 26, 15:23 UTCJun 26, 21:03 UTC5h 40m

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 N1605 page for operator, model, and routing details .

Mode-S A0F4B5 frequently asked

What is Mode-S code A0F4B5?
A0F4B5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N1605.
Where is Mode-S A0F4B5 registered?
Mode-S code A0F4B5 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 A0F4B5 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0F4B5, octal 50172265, decimal 10,548,405.
What flights does A0F4B5 operate?
Mode-S A0F4B5 has broadcast 20 distinct callsigns, including DAL244, DAL219, DAL218, DAL92, DAL245.