Apparatus

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sensors Mode-S transponder

A08A6B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N134DU · AIRBUS A220-100 · operated by DELTA AIR LINES INC

Hex
A08A6B
Octal
50105153
Decimal
10,521,195
Country
US
Tail
N134DU
Type
BCS1
No current signal · last broadcast 4h ago
Flights observed
356
Distinct callsigns
20
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S A08A6B.

Country allocation

The ICAO 24-bit address A08A6B 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
DAL1623 - 12 2026-06-22
DAL2846 - 11 2026-06-15
DAL2673 Delta Air Lines 10 2026-05-08
DAL561 Delta Air Lines 9 2026-06-14
DAL2285 Delta Air Lines 8 2026-05-11
DAL1367 - 8 2026-06-23
DAL1254 - 8 2026-07-05
DAL362 - 7 2026-07-04
DAL2565 Delta Air Lines 7 2026-07-04
DAL2550 Delta Air Lines 7 2026-06-01
DAL3185 - 6 2026-07-12
DAL1641 - 6 2026-06-15
DAL475 - 5 2026-07-12
DAL3188 - 5 2026-07-13
DAL2885 - 5 2026-06-27
DAL2327 Delta Air Lines 5 2026-06-04
DAL2156 Delta Air Lines 5 2026-05-21
DAL1723 - 5 2026-06-21
DAL1586 - 5 2026-06-23
DAL1533 - 5 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL2683 - Jul 14, 00:05 UTCJul 14, 02:20 UTC2h 15m
2026-07-13 DAL1613 - Jul 13, 21:10 UTCJul 13, 22:10 UTC1h 0m
2026-07-13 DAL1613 MCI → MSP Jul 13, 21:08 UTCJul 13, 22:09 UTC1h 1m
2026-07-13 DAL1613 - Jul 13, 18:55 UTCJul 13, 20:00 UTC1h 5m
2026-07-13 DAL3188 - Jul 13, 16:25 UTCJul 13, 17:30 UTC1h 5m
2026-07-13 DAL3188 STL → MSP Jul 13, 16:23 UTCJul 13, 17:31 UTC1h 8m
2026-07-13 DAL3188 MSP → STL Jul 13, 14:15 UTCJul 13, 15:20 UTC1h 5m
2026-07-13 DAL1357 - Jul 13, 10:05 UTCJul 13, 11:35 UTC1h 30m
2026-07-13 DAL1392 - Jul 13, 02:30 UTCJul 13, 03:55 UTC1h 25m
2026-07-12 DAL3185 - Jul 12, 23:40 UTCJul 13, 00:50 UTC1h 10m
2026-07-12 DAL3185 MSP → STL Jul 12, 21:25 UTCJul 12, 22:30 UTC1h 5m
2026-07-12 DAL1827 - Jul 12, 16:20 UTCJul 12, 18:20 UTC2h 0m
2026-07-12 DAL1827 CLT → MSP Jul 12, 16:16 UTCJul 12, 18:20 UTC2h 4m
2026-07-12 DAL475 - Jul 12, 13:05 UTCJul 12, 15:05 UTC2h 0m
2026-07-11 DAL475 - Jul 11, 20:55 UTCJul 11, 23:20 UTC2h 25m
2026-07-11 DAL475 - Jul 11, 17:20 UTCJul 11, 19:30 UTC2h 10m
2026-07-11 DAL1050 - Jul 11, 11:45 UTCJul 11, 14:00 UTC2h 15m
2026-07-06 DAL2514 - Jul 6, 00:10 UTCJul 6, 02:45 UTC2h 35m
2026-07-05 DAL1254 - Jul 5, 20:40 UTCJul 5, 22:00 UTC1h 20m
2026-07-05 DAL1254 - Jul 5, 17:45 UTCJul 5, 19:15 UTC1h 30m
2026-07-05 DAL2363 STL → SLC Jul 5, 13:05 UTCJul 5, 15:40 UTC2h 35m
2026-07-05 DAL1609 MSP → STL Jul 5, 03:10 UTCJul 5, 04:45 UTC1h 35m
2026-07-04 DAL362 - Jul 4, 18:00 UTCJul 4, 23:50 UTC5h 50m
2026-07-04 DAL2847 - Jul 4, 14:55 UTCJul 4, 16:25 UTC1h 30m
2026-07-04 DAL2565 LGA → ORD Jul 4, 12:25 UTCJul 4, 13:50 UTC1h 25m
2026-07-03 DAL2565 LGA → ORD Jul 3, 20:45 UTCJul 3, 22:45 UTC2h 0m
2026-07-03 DAL2565 LGA → ORD Jul 3, 20:40 UTCJul 3, 22:46 UTC2h 6m
2026-07-03 DAL2565 LGA → ORD Jul 3, 17:25 UTCJul 3, 19:35 UTC2h 10m
2026-07-03 DAL2848 - Jul 3, 11:00 UTCJul 3, 12:45 UTC1h 45m
2026-07-03 DAL3075 GNV → ATL Jul 3, 01:10 UTCJul 3, 02:50 UTC1h 40m
2026-07-02 DAL362 MSP → MSP Jul 2, 18:05 UTCJul 2, 23:55 UTC5h 50m
2026-07-02 DAL535 ABQ → MSP Jul 2, 14:30 UTCJul 2, 16:25 UTC1h 55m
2026-07-02 DAL535 ABQ → MSP Jul 2, 14:27 UTCJul 2, 16:25 UTC1h 58m
2026-07-01 DAL730 - Jul 1, 23:15 UTCJul 2, 01:35 UTC2h 20m
2026-07-01 DAL2006 - Jul 1, 21:15 UTCJul 1, 22:05 UTC50m
2026-07-01 DAL2006 - Jul 1, 19:10 UTCJul 1, 20:00 UTC50m
2026-07-01 DAL1827 BOS → NAS Jul 1, 15:50 UTCJul 1, 17:55 UTC2h 5m
2026-07-01 DAL3185 ATL → CLT Jul 1, 12:15 UTCJul 1, 14:30 UTC2h 15m
2026-06-30 DAL3185 ATL → CLT Jun 30, 22:40 UTCJun 30, 23:50 UTC1h 10m
2026-06-30 DAL3185 ATL → CLT Jun 30, 20:25 UTCJun 30, 21:30 UTC1h 5m
2026-06-30 DAL1608 - Jun 30, 17:50 UTCJun 30, 18:45 UTC55m
2026-06-30 DAL1608 MCI → MSP Jun 30, 17:45 UTCJun 30, 18:41 UTC56m
2026-06-30 DAL1608 - Jun 30, 15:30 UTCJun 30, 16:30 UTC1h 0m
2026-06-30 DAL1493 DCA → MSP Jun 30, 12:00 UTCJun 30, 14:20 UTC2h 20m
2026-06-30 DAL1493 DCA → MSP Jun 30, 11:55 UTCJun 30, 14:16 UTC2h 21m
2026-06-29 DAL2962 MSP → DCA Jun 29, 23:54 UTCJun 30, 01:55 UTC2h 1m
2026-06-29 DAL2565 LGA → ORD Jun 29, 19:09 UTCJun 29, 21:14 UTC2h 5m
2026-06-28 DAL2565 LGA → ORD Jun 28, 23:39 UTCJun 29, 01:55 UTC2h 15m
2026-06-28 DAL2565 LGA → ORD Jun 28, 19:59 UTCJun 28, 22:10 UTC2h 10m
2026-06-28 DAL3188 - Jun 28, 17:34 UTCJun 28, 18:55 UTC1h 20m

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 N134DU page for operator, model, and routing details .

Mode-S A08A6B frequently asked

What is Mode-S code A08A6B?
A08A6B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N134DU.
Where is Mode-S A08A6B registered?
Mode-S code A08A6B 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 A08A6B broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A08A6B, octal 50105153, decimal 10,521,195.
What flights does A08A6B operate?
Mode-S A08A6B has broadcast 20 distinct callsigns, including DAL1623, DAL2846, DAL2673, DAL561, DAL2285.