Apparatus

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sensors Mode-S transponder

AB8F0D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N844DN · BOEING 737-900 · operated by DELTA AIR LINES INC

Hex
AB8F0D
Octal
52707415
Decimal
11,243,277
Country
US
Tail
N844DN
Type
B739
No current signal · last broadcast 2h ago
Flights observed
404
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S AB8F0D.

Country allocation

The ICAO 24-bit address AB8F0D 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
DAL861 - 8 2026-07-08
DAL2202 - 8 2026-07-09
DAL637 Delta Air Lines 6 2026-06-19
DAL553 - 6 2026-07-08
DAL1203 Delta Air Lines 6 2026-06-26
DAL732 - 5 2026-07-11
DAL2022 Delta Air Lines 5 2026-07-03
DAL1913 Delta Air Lines 5 2026-06-09
DAL1730 Delta Air Lines 5 2026-06-29
DAL3169 Delta Air Lines 4 2026-04-14
DAL305 Delta Air Lines 4 2026-05-13
DAL2739 - 4 2026-06-22
DAL2604 Delta Air Lines 4 2026-04-21
DAL2404 Delta Air Lines 4 2026-04-29
DAL2023 - 4 2026-07-04
DAL1759 Delta Air Lines 4 2026-04-23
DAL1758 Delta Air Lines 4 2026-06-03
DAL1757 Delta Air Lines 4 2026-06-04
DAL886 Delta Air Lines 3 2026-06-21
DAL539 Delta Air Lines 3 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL1910 - Jul 14, 15:00 UTCJul 14, 17:10 UTC2h 10m
2026-07-14 DAL1910 ATL → SAL Jul 14, 15:00 UTCJul 14, 18:03 UTC3h 3m
2026-07-14 DAL1396 - Jul 14, 11:55 UTCJul 14, 12:55 UTC1h 0m
2026-07-14 DAL2083 - Jul 14, 03:15 UTCJul 14, 04:15 UTC1h 0m
2026-07-13 DAL2206 PDX → ATL Jul 13, 21:30 UTCJul 14, 01:45 UTC4h 15m
2026-07-13 DAL2206 - Jul 13, 15:15 UTCJul 13, 19:40 UTC4h 25m
2026-07-13 DAL1536 STL → ATL Jul 13, 12:10 UTCJul 13, 13:25 UTC1h 15m
2026-07-13 DAL2833 ATL → STL Jul 13, 02:15 UTCJul 13, 03:25 UTC1h 10m
2026-07-12 DAL2293 JFK → ATL Jul 12, 22:05 UTCJul 12, 23:50 UTC1h 45m
2026-07-12 DAL1918 - Jul 12, 17:35 UTCJul 12, 19:40 UTC2h 5m
2026-07-12 DAL1907 - Jul 12, 12:45 UTCJul 12, 15:01 UTC2h 15m
2026-07-12 DAL1907 JFK → NAS Jul 12, 12:43 UTCJul 12, 15:14 UTC2h 31m
2026-07-12 DAL2500 - Jul 12, 01:15 UTCJul 12, 03:40 UTC2h 25m
2026-07-11 DAL2500 JFK → MIA Jul 11, 20:03 UTCJul 11, 23:08 UTC3h 5m
2026-07-11 DAL2500 JFK → MIA Jul 11, 20:05 UTCJul 11, 23:15 UTC3h 10m
2026-07-11 DAL732 TPA → JFK Jul 11, 15:45 UTCJul 11, 18:00 UTC2h 15m
2026-07-11 DAL732 TPA → JFK Jul 11, 15:41 UTCJul 11, 18:05 UTC2h 24m
2026-07-11 DAL2042 JFK → TPA Jul 11, 11:35 UTCJul 11, 13:50 UTC2h 15m
2026-07-11 DAL2398 ATL → JFK Jul 11, 01:50 UTCJul 11, 03:35 UTC1h 45m
2026-07-10 DAL1928 SAV → ATL Jul 10, 22:55 UTCJul 10, 23:40 UTC45m
2026-07-10 DAL1928 - Jul 10, 19:15 UTCJul 10, 21:40 UTC2h 26m
2026-07-10 DAL1997 ATL → MBJ Jul 10, 14:38 UTCJul 10, 17:06 UTC2h 28m
2026-07-10 DAL1997 - Jul 10, 14:40 UTCJul 10, 16:15 UTC1h 35m
2026-07-10 DAL3058 - Jul 10, 11:20 UTCJul 10, 12:10 UTC50m
2026-07-10 DAL3082 ATL → LEX Jul 10, 02:15 UTCJul 10, 03:05 UTC50m
2026-07-09 DAL1008 - Jul 9, 23:35 UTCJul 10, 00:35 UTC1h 0m
2026-07-09 DAL1008 CVG → ATL Jul 9, 23:31 UTCJul 10, 00:32 UTC1h 1m
2026-07-09 DAL1008 ATL → CVG Jul 9, 21:00 UTCJul 9, 22:00 UTC1h 0m
2026-07-09 DAL677 LAS → ATL Jul 9, 14:20 UTCJul 9, 17:50 UTC3h 30m
2026-07-09 DAL2202 - Jul 9, 03:05 UTCJul 9, 03:50 UTC45m
2026-07-08 DAL861 - Jul 8, 21:45 UTCJul 9, 01:30 UTC3h 45m
2026-07-08 DAL861 - Jul 8, 16:15 UTCJul 8, 19:50 UTC3h 35m
2026-07-08 DAL553 LAS → LAX Jul 8, 13:55 UTCJul 8, 14:40 UTC45m
2026-07-08 DAL553 LAS → LAX Jul 8, 13:53 UTCJul 8, 14:36 UTC43m
2026-07-08 DAL2202 LAX → LAS Jul 8, 03:05 UTCJul 8, 03:50 UTC45m
2026-07-08 DAL2202 LAX → LAS Jul 8, 03:03 UTCJul 8, 03:46 UTC43m
2026-07-07 DAL861 - Jul 7, 21:50 UTCJul 8, 01:35 UTC3h 45m
2026-07-07 DAL861 - Jul 7, 16:15 UTCJul 7, 19:55 UTC3h 40m
2026-07-07 DAL553 LAS → LAX Jul 7, 14:00 UTCJul 7, 14:45 UTC45m
2026-07-07 DAL553 LAS → LAX Jul 7, 14:00 UTCJul 7, 14:39 UTC39m
2026-07-07 DAL2202 LAX → LAS Jul 7, 03:05 UTCJul 7, 03:55 UTC50m
2026-07-07 DAL2202 LAX → LAS Jul 7, 03:03 UTCJul 7, 03:49 UTC46m
2026-07-06 DAL861 BNA → SEA Jul 6, 21:35 UTCJul 7, 01:30 UTC3h 55m
2026-07-06 DAL861 BNA → SEA Jul 6, 16:20 UTCJul 6, 19:55 UTC3h 35m
2026-07-06 DAL553 LAS → LAX Jul 6, 13:55 UTCJul 6, 14:35 UTC40m
2026-07-06 DAL2202 LAX → LAS Jul 6, 03:30 UTCJul 6, 04:20 UTC50m
2026-07-06 DAL2202 LAX → LAS Jul 6, 03:30 UTCJul 6, 04:09 UTC39m
2026-07-05 DAL861 BNA → SEA Jul 5, 21:55 UTCJul 6, 01:50 UTC3h 55m
2026-07-05 DAL861 BNA → SEA Jul 5, 16:15 UTCJul 5, 19:55 UTC3h 40m
2026-07-05 DAL553 - Jul 5, 14:00 UTCJul 5, 14:40 UTC40m

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 N844DN page for operator, model, and routing details .

Mode-S AB8F0D frequently asked

What is Mode-S code AB8F0D?
AB8F0D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N844DN.
Where is Mode-S AB8F0D registered?
Mode-S code AB8F0D 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 AB8F0D broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB8F0D, octal 52707415, decimal 11,243,277.
What flights does AB8F0D operate?
Mode-S AB8F0D has broadcast 20 distinct callsigns, including DAL861, DAL2202, DAL637, DAL553, DAL1203.