Apparatus

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sensors Mode-S transponder

A071C8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N128DU · AIRBUS A220-100 · operated by BANK OF UTAH TRUSTEE

Hex
A071C8
Octal
50070710
Decimal
10,514,888
Country
US
Tail
N128DU
Type
BCS1
Transponder active on ground
Flights observed
520
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S A071C8.

Country allocation

The ICAO 24-bit address A071C8 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
DAL1492 Delta Air Lines 13 2026-07-21
DAL1553 - 12 2026-07-04
DAL1277 Delta Air Lines 12 2026-07-20
DAL2528 Delta Air Lines 10 2026-07-06
DAL1299 Delta Air Lines 10 2026-07-23
DAL675 Delta Air Lines 9 2026-05-18
DAL3123 - 9 2026-07-06
DAL2963 Delta Air Lines 9 2026-07-26
DAL1367 - 9 2026-06-27
DAL2679 - 8 2026-07-11
DAL2455 Delta Air Lines 8 2026-07-23
DAL2201 Delta Air Lines 8 2026-07-20
DAL2185 Delta Air Lines 8 2026-05-20
DAL2087 - 8 2026-07-06
DAL1198 - 8 2026-07-22
DAL2972 Delta Air Lines 7 2026-07-25
DAL2677 Delta Air Lines 7 2026-05-18
DAL1464 Delta Air Lines 7 2026-07-20
DAL1449 - 7 2026-06-24
DAL1304 Delta Air Lines 7 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2963 ATL → CVG Jul 26, 20:45 UTCJul 26, 22:00 UTC1h 15m
2026-07-26 DAL2656 JFK → PDX Jul 26, 17:05 UTCJul 26, 19:25 UTC2h 20m
2026-07-26 DAL2656 JFK → PDX Jul 26, 13:35 UTCJul 26, 15:55 UTC2h 20m
2026-07-25 DAL2963 ATL → CVG Jul 25, 23:15 UTCJul 26, 01:35 UTC2h 20m
2026-07-25 DAL2963 ATL → CVG Jul 25, 23:10 UTCJul 26, 01:28 UTC2h 18m
2026-07-25 DAL2963 ATL → CVG Jul 25, 19:45 UTCJul 25, 21:40 UTC1h 55m
2026-07-25 DAL2972 PVD → ATL Jul 25, 16:25 UTCJul 25, 18:25 UTC2h 0m
2026-07-25 DAL2972 PVD → ATL Jul 25, 13:05 UTCJul 25, 14:55 UTC1h 50m
2026-07-25 DAL2972 PVD → ATL Jul 25, 13:03 UTCJul 25, 14:58 UTC1h 55m
2026-07-25 DAL1357 BOS → JFK Jul 25, 10:00 UTCJul 25, 11:35 UTC1h 35m
2026-07-25 DAL1392 DTW → MCO Jul 25, 02:00 UTCJul 25, 03:20 UTC1h 20m
2026-07-24 DAL1630 ATL → EWR Jul 24, 23:35 UTCJul 25, 00:35 UTC1h 0m
2026-07-24 DAL1630 ATL → EWR Jul 24, 21:35 UTCJul 24, 22:30 UTC55m
2026-07-24 DAL1608 ATL → PVD Jul 24, 17:45 UTCJul 24, 18:45 UTC1h 0m
2026-07-24 DAL1608 ATL → PVD Jul 24, 17:40 UTCJul 24, 18:43 UTC1h 3m
2026-07-24 DAL1608 ATL → PVD Jul 24, 15:25 UTCJul 24, 16:25 UTC1h 0m
2026-07-24 DAL1050 IAH → MSP Jul 24, 11:40 UTCJul 24, 14:05 UTC2h 25m
2026-07-24 DAL1050 IAH → MSP Jul 24, 11:36 UTCJul 24, 13:59 UTC2h 23m
2026-07-24 DAL2514 IND → ATL Jul 24, 00:05 UTCJul 24, 02:40 UTC2h 35m
2026-07-23 DAL2455 PHL → DTW Jul 23, 19:30 UTCJul 23, 22:20 UTC2h 50m
2026-07-23 DAL2455 PHL → DTW Jul 23, 16:00 UTCJul 23, 18:20 UTC2h 20m
2026-07-23 DAL1314 SJC → SLC Jul 23, 13:05 UTCJul 23, 14:30 UTC1h 25m
2026-07-23 DAL1272 JFK → FLL Jul 23, 05:00 UTCJul 23, 06:25 UTC1h 25m
2026-07-23 DAL1299 LGA → SRQ Jul 23, 00:25 UTCJul 23, 03:10 UTC2h 45m
2026-07-23 DAL1299 LGA → SRQ Jul 23, 00:24 UTCJul 23, 03:03 UTC2h 39m
2026-07-22 DAL1299 LGA → SRQ Jul 22, 20:05 UTCJul 22, 22:40 UTC2h 35m
2026-07-22 DAL1198 - Jul 22, 16:55 UTCJul 22, 18:25 UTC1h 30m
2026-07-22 DAL1198 - Jul 22, 14:10 UTCJul 22, 15:35 UTC1h 25m
2026-07-22 DAL1024 ATL → CHA Jul 22, 02:40 UTCJul 22, 04:00 UTC1h 20m
2026-07-22 DAL1024 ATL → CHA Jul 22, 02:37 UTCJul 22, 03:56 UTC1h 19m
2026-07-22 DAL1024 ATL → CHA Jul 22, 00:25 UTCJul 22, 01:40 UTC1h 15m
2026-07-21 DAL1532 - Jul 21, 20:20 UTCJul 21, 22:50 UTC2h 30m
2026-07-21 DAL2502 ATL → BNA Jul 21, 15:35 UTCJul 21, 18:20 UTC2h 45m
2026-07-21 DAL1526 ATL → DTW Jul 21, 12:37 UTCJul 21, 13:53 UTC1h 16m
2026-07-21 DAL1526 ATL → DTW Jul 21, 12:40 UTCJul 21, 14:00 UTC1h 20m
2026-07-21 DAL1582 MSP → CHS Jul 21, 05:20 UTCJul 21, 06:35 UTC1h 15m
2026-07-21 DAL1582 MSP → CHS Jul 21, 05:16 UTCJul 21, 06:30 UTC1h 14m
2026-07-21 DAL1492 JFK → DEN Jul 21, 01:30 UTCJul 21, 04:20 UTC2h 50m
2026-07-21 DAL1492 JFK → DEN Jul 21, 01:27 UTCJul 21, 04:11 UTC2h 44m
2026-07-20 DAL1492 JFK → DEN Jul 20, 23:55 UTCJul 21, 00:15 UTC20m
2026-07-20 DAL1492 JFK → DEN Jul 20, 21:50 UTCJul 20, 23:50 UTC2h 0m
2026-07-20 DAL1492 - Jul 20, 18:45 UTCJul 20, 19:55 UTC1h 10m
2026-07-20 DAL2813 - Jul 20, 16:00 UTCJul 20, 17:00 UTC1h 0m
2026-07-20 DAL2201 ORD → SEA Jul 20, 11:55 UTCJul 20, 13:00 UTC1h 5m
2026-07-20 DAL1464 OMA → ATL Jul 20, 03:30 UTCJul 20, 04:35 UTC1h 5m
2026-07-20 DAL1277 SNA → SLC Jul 20, 00:20 UTCJul 20, 01:45 UTC1h 25m
2026-07-20 DAL1277 SNA → SLC Jul 20, 00:15 UTCJul 20, 01:43 UTC1h 28m
2026-07-19 DAL1277 SNA → SLC Jul 19, 21:25 UTCJul 19, 22:50 UTC1h 25m
2026-07-19 DAL1442 CMH → ATL Jul 19, 19:05 UTCJul 19, 20:00 UTC55m
2026-07-19 DAL1442 CMH → ATL Jul 19, 17:10 UTCJul 19, 17:55 UTC45m

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 N128DU page for operator, model, and routing details .

Mode-S A071C8 frequently asked

What is Mode-S code A071C8?
A071C8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N128DU.
Where is Mode-S A071C8 registered?
Mode-S code A071C8 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 A071C8 broadcasting right now?
Mode-S A071C8 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A071C8, octal 50070710, decimal 10,514,888.
What flights does A071C8 operate?
Mode-S A071C8 has broadcast 20 distinct callsigns, including DAL1492, DAL1553, DAL1277, DAL2528, DAL1299.