Apparatus

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sensors Mode-S transponder

A16273

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N189DN · BOEING 767-300 · operated by DELTA AIR LINES INC

Hex
A16273
Octal
50261163
Decimal
10,576,499
Country
US
Tail
N189DN
Type
B763
Broadcasting now · callsign DAL45 · 1,575 ft
Flights observed
329
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

Current position

A16273 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A16273 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
DAL668 - 14 2026-07-22
DAL93 - 13 2026-07-01
DAL960 Delta Air Lines 11 2026-07-22
DAL92 - 10 2026-06-30
DAL218 - 9 2026-06-27
DAL713 Delta Air Lines 8 2026-06-10
DAL680 Delta Air Lines 8 2026-04-22
DAL45 Delta Air Lines 8 2026-06-05
DAL363 Delta Air Lines 8 2026-04-23
DAL52 Delta Air Lines 7 2026-06-03
DAL219 - 7 2026-06-28
DAL208 Delta Air Lines 7 2026-07-24
DAL123 Delta Air Lines 7 2026-07-24
DAL501 Delta Air Lines 6 2026-07-21
DAL395 Delta Air Lines 6 2026-07-20
DAL246 Delta Air Lines 6 2026-06-11
DAL205 Delta Air Lines 6 2026-06-09
DAL204 Delta Air Lines 6 2026-06-08
DAL938 Delta Air Lines 5 2026-05-14
DAL738 - 5 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL416 ATL → EWR Jul 26, 19:25 UTCJul 26, 22:45 UTC3h 20m
2026-07-26 DAL141 BRU → JFK Jul 26, 08:05 UTCJul 26, 16:55 UTC8h 50m
2026-07-25 DAL140 JFK → BRU Jul 25, 21:31 UTCJul 26, 05:22 UTC7h 51m
2026-07-25 DAL140 JFK → BRU Jul 25, 21:35 UTCJul 26, 05:30 UTC7h 55m
2026-07-25 DAL35 AMS → EWR Jul 25, 08:15 UTCJul 25, 16:45 UTC8h 30m
2026-07-25 DAL122 BOS → EDI Jul 25, 00:00 UTCJul 25, 05:20 UTC5h 20m
2026-07-24 DAL123 EDI → BOS Jul 24, 12:50 UTCJul 24, 19:20 UTC6h 30m
2026-07-24 DAL208 JFK → EDI Jul 24, 05:10 UTCJul 24, 10:50 UTC5h 40m
2026-07-23 DAL115 BCN → ATL Jul 23, 12:47 UTCJul 23, 19:35 UTC6h 48m
2026-07-23 DAL115 BCN → ATL Jul 23, 12:50 UTCJul 23, 19:40 UTC6h 50m
2026-07-23 DAL114 SEA → CDG Jul 23, 02:55 UTCJul 23, 09:10 UTC6h 15m
2026-07-22 DAL668 JFK → LAS Jul 22, 19:35 UTCJul 23, 00:25 UTC4h 50m
2026-07-22 DAL668 JFK → LAS Jul 22, 19:32 UTCJul 23, 00:13 UTC4h 41m
2026-07-22 DAL668 JFK → SFO Jul 22, 11:25 UTCJul 22, 16:45 UTC5h 20m
2026-07-22 DAL960 SLC → CVG Jul 22, 04:30 UTCJul 22, 05:25 UTC55m
2026-07-21 DAL501 ATL → LAX Jul 21, 14:46 UTCJul 21, 18:29 UTC3h 43m
2026-07-21 DAL501 ATL → LAX Jul 21, 14:50 UTCJul 21, 18:35 UTC3h 45m
2026-07-20 DAL395 LAX → ATL Jul 20, 20:35 UTCJul 21, 00:35 UTC4h 0m
2026-07-20 DAL501 ATL → LAX Jul 20, 14:35 UTCJul 20, 18:25 UTC3h 50m
2026-07-20 DAL416 ANC → ATL Jul 20, 06:10 UTCJul 20, 12:25 UTC6h 15m
2026-07-19 DAL416 ATL → ANC Jul 19, 21:10 UTCJul 20, 04:25 UTC7h 15m
2026-07-19 DAL141 - Jul 19, 08:45 UTCJul 19, 17:40 UTC8h 55m
2026-07-18 DAL140 ATL → BRU Jul 18, 22:21 UTCJul 19, 06:41 UTC8h 20m
2026-07-18 DAL140 - Jul 18, 22:20 UTCJul 19, 01:20 UTC3h 0m
2026-07-18 DAL980 BOG → ATL Jul 18, 14:20 UTCJul 18, 18:30 UTC4h 10m
2026-07-17 DAL981 ATL → BOG Jul 17, 20:55 UTCJul 18, 01:10 UTC4h 15m
2026-07-17 DAL632 UIO → ATL Jul 17, 06:11 UTCJul 17, 10:47 UTC4h 36m
2026-07-16 DAL633 ATL → ATL Jul 16, 18:59 UTCJul 17, 10:44 UTC15h 45m
2026-07-15 DAL395 LAX → ATL Jul 15, 20:45 UTCJul 16, 00:50 UTC4h 5m
2026-07-15 DAL501 ATL → LAX Jul 15, 14:40 UTCJul 15, 18:35 UTC3h 55m
2026-07-15 DAL416 - Jul 15, 04:30 UTCJul 15, 10:55 UTC6h 25m
2026-07-14 DAL416 ATL → ANC Jul 14, 19:45 UTCJul 15, 02:50 UTC7h 4m
2026-07-14 DAL141 BRU → ATL Jul 14, 08:15 UTCJul 14, 16:55 UTC8h 40m
2026-07-13 DAL140 - Jul 13, 21:40 UTCJul 14, 05:50 UTC8h 10m
2026-07-11 DAL35 EDI → ATL Jul 11, 08:24 UTCJul 11, 16:59 UTC8h 35m
2026-07-11 DAL35 EDI → ATL Jul 11, 08:25 UTCJul 11, 17:05 UTC8h 40m
2026-07-11 DAL122 BOS → EDI Jul 11, 00:13 UTCJul 11, 05:46 UTC5h 33m
2026-07-11 DAL122 - Jul 11, 00:15 UTCJul 11, 05:55 UTC5h 40m
2026-07-10 DAL123 EDI → BOS Jul 10, 10:20 UTCJul 10, 17:05 UTC6h 45m
2026-07-10 DAL123 EDI → BOS Jul 10, 10:15 UTCJul 10, 17:05 UTC6h 50m
2026-07-10 DAL208 JFK → EDI Jul 10, 02:10 UTCJul 10, 08:10 UTC6h 0m
2026-07-09 DAL115 OPO → JFK Jul 9, 12:45 UTCJul 9, 19:40 UTC6h 55m
2026-07-09 DAL114 - Jul 9, 03:05 UTCJul 9, 09:15 UTC6h 10m
2026-07-08 DAL668 SFO → JFK Jul 8, 18:45 UTCJul 8, 23:40 UTC4h 55m
2026-07-08 DAL668 JFK → SFO Jul 8, 11:25 UTCJul 8, 16:50 UTC5h 25m
2026-07-08 DAL960 LAX → JFK Jul 8, 04:30 UTCJul 8, 09:30 UTC5h 0m
2026-07-07 DAL767 JFK → LAX Jul 7, 15:15 UTCJul 7, 20:25 UTC5h 10m
2026-07-07 DAL915 - Jul 7, 07:15 UTCJul 7, 12:15 UTC5h 0m
2026-07-07 DAL463 - Jul 7, 03:10 UTCJul 7, 04:10 UTC1h 0m
2026-07-06 DAL463 OGG → LAX Jul 6, 23:17 UTCJul 7, 03:46 UTC4h 29m

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 N189DN page for operator, model, and routing details .

Mode-S A16273 frequently asked

What is Mode-S code A16273?
A16273 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N189DN.
Where is Mode-S A16273 registered?
Mode-S code A16273 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 A16273 broadcasting right now?
Yes. Mode-S A16273 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A16273, octal 50261163, decimal 10,576,499.
What flights does A16273 operate?
Mode-S A16273 has broadcast 20 distinct callsigns, including DAL668, DAL93, DAL960, DAL92, DAL218.