Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A01B5C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N106DU · AIRBUS A220-100 · operated by BANK OF UTAH TRUSTEE

Hex
A01B5C
Octal
50015534
Decimal
10,492,764
Country
US
Tail
N106DU
Type
BCS1
No current signal · last broadcast Jul 26, 22:40 UTC
Flights observed
451
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:40 UTC

Last known position

Most recent position reported by Mode-S A01B5C.

Country allocation

The ICAO 24-bit address A01B5C 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
DAL1553 - 15 2026-06-27
DAL1035 Delta Air Lines 10 2026-07-20
DAL675 Delta Air Lines 8 2026-05-13
DAL2716 - 8 2026-06-21
DAL2677 Delta Air Lines 8 2026-05-14
DAL1638 Delta Air Lines 8 2026-07-23
DAL1608 Delta Air Lines 8 2026-07-23
DAL1260 Delta Air Lines 8 2026-07-26
DAL8974 Delta Air Lines 7 2026-04-24
DAL724 Delta Air Lines 7 2026-05-05
DAL2920 - 7 2026-06-27
DAL2619 - 7 2026-06-21
DAL2412 Delta Air Lines 7 2026-05-05
DAL751 Delta Air Lines 6 2026-04-15
DAL572 Delta Air Lines 6 2026-05-04
DAL2798 Delta Air Lines 6 2026-07-25
DAL2390 Delta Air Lines 6 2026-07-23
DAL496 - 5 2026-07-20
DAL3073 Delta Air Lines 5 2026-05-05
DAL2985 Delta Air Lines 5 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2680 SEA → SFO Jul 26, 20:15 UTCJul 26, 22:40 UTC2h 25m
2026-07-26 DAL1367 ORD → ATL Jul 26, 16:55 UTCJul 26, 18:15 UTC1h 20m
2026-07-26 DAL1367 ORD → ATL Jul 26, 14:30 UTCJul 26, 15:50 UTC1h 20m
2026-07-26 DAL2201 ORD → SEA Jul 26, 11:50 UTCJul 26, 13:00 UTC1h 10m
2026-07-26 DAL1464 OMA → ATL Jul 26, 03:20 UTCJul 26, 04:25 UTC1h 5m
2026-07-26 DAL1464 OMA → ATL Jul 26, 03:18 UTCJul 26, 04:33 UTC1h 15m
2026-07-26 DAL1260 MCO → LGA Jul 26, 00:00 UTCJul 26, 01:25 UTC1h 25m
2026-07-25 DAL1260 MCO → LGA Jul 25, 23:55 UTCJul 26, 01:18 UTC1h 23m
2026-07-25 DAL1260 MCO → LGA Jul 25, 21:25 UTCJul 25, 22:50 UTC1h 25m
2026-07-25 DAL2798 EWR → MSP Jul 25, 17:50 UTCJul 25, 20:00 UTC2h 10m
2026-07-25 DAL2798 EWR → MSP Jul 25, 14:20 UTCJul 25, 16:25 UTC2h 5m
2026-07-25 DAL2335 SLC → CVG Jul 25, 12:10 UTCJul 25, 12:40 UTC30m
2026-07-25 DAL2335 SLC → CVG Jul 25, 12:02 UTCJul 25, 12:36 UTC34m
2026-07-25 DAL2608 MSP → PHL Jul 25, 03:45 UTCJul 25, 04:10 UTC25m
2026-07-25 DAL1503 JFK → ATL Jul 25, 00:15 UTCJul 25, 01:45 UTC1h 30m
2026-07-24 DAL1503 JFK → ATL Jul 24, 21:45 UTCJul 24, 23:00 UTC1h 15m
2026-07-24 DAL930 LAS → JFK Jul 24, 17:50 UTCJul 24, 20:20 UTC2h 30m
2026-07-24 DAL2667 DEN → DTW Jul 24, 14:15 UTCJul 24, 16:35 UTC2h 20m
2026-07-24 DAL2491 CLT → MSP Jul 24, 10:35 UTCJul 24, 12:50 UTC2h 15m
2026-07-24 DAL2929 MSP → CLT Jul 24, 01:35 UTCJul 24, 03:25 UTC1h 50m
2026-07-23 DAL1630 ATL → EWR Jul 23, 22:50 UTCJul 23, 23:55 UTC1h 5m
2026-07-23 DAL1630 ATL → EWR Jul 23, 20:30 UTCJul 23, 21:35 UTC1h 5m
2026-07-23 DAL1608 ATL → PVD Jul 23, 17:45 UTCJul 23, 18:45 UTC1h 0m
2026-07-23 DAL1608 ATL → PVD Jul 23, 15:30 UTCJul 23, 16:25 UTC55m
2026-07-23 DAL2390 VPS → ATL Jul 23, 11:35 UTCJul 23, 14:15 UTC2h 40m
2026-07-23 DAL1638 DTW → DEN Jul 23, 01:00 UTCJul 23, 03:35 UTC2h 35m
2026-07-22 DAL1638 DTW → DEN Jul 22, 21:20 UTCJul 22, 23:40 UTC2h 20m
2026-07-22 DAL1638 DTW → DEN Jul 22, 16:55 UTCJul 22, 19:50 UTC2h 55m
2026-07-22 DAL1638 DTW → DEN Jul 22, 01:20 UTCJul 22, 04:05 UTC2h 45m
2026-07-20 DAL1035 BOS → JFK Jul 20, 23:05 UTCJul 21, 01:50 UTC2h 44m
2026-07-20 DAL1035 BOS → JFK Jul 20, 23:01 UTCJul 21, 01:46 UTC2h 45m
2026-07-20 DAL1035 BOS → JFK Jul 20, 19:15 UTCJul 20, 21:10 UTC1h 55m
2026-07-20 DAL454 LAX → BOS Jul 20, 14:30 UTCJul 20, 17:40 UTC3h 10m
2026-07-20 DAL496 JFK → DFW Jul 20, 00:04 UTCJul 20, 03:00 UTC2h 56m
2026-07-20 DAL496 - Jul 20, 00:05 UTCJul 20, 03:00 UTC2h 55m
2026-07-19 DAL2661 - Jul 19, 19:30 UTCJul 19, 21:35 UTC2h 5m
2026-07-19 DAL2661 MSP → JFK Jul 19, 19:28 UTCJul 19, 21:33 UTC2h 5m
2026-07-19 DAL2156 BOS → MSP Jul 19, 13:35 UTCJul 19, 16:50 UTC3h 15m
2026-07-18 DAL2087 MSP → BIL Jul 18, 20:40 UTCJul 19, 00:25 UTC3h 45m
2026-07-18 DAL2005 - Jul 18, 18:20 UTCJul 18, 19:15 UTC55m
2026-07-18 DAL2005 - Jul 18, 15:30 UTCJul 18, 16:15 UTC45m
2026-07-18 DAL2390 JFK → MSP Jul 18, 11:45 UTCJul 18, 14:15 UTC2h 30m
2026-07-17 DAL1035 - Jul 17, 22:05 UTCJul 18, 00:04 UTC2h 0m
2026-07-17 DAL1035 - Jul 17, 18:05 UTCJul 17, 20:00 UTC1h 55m
2026-07-17 DAL454 DFW → JFK Jul 17, 13:25 UTCJul 17, 16:24 UTC3h 0m
2026-07-17 DAL454 DFW → JFK Jul 17, 13:23 UTCJul 17, 16:24 UTC3h 1m
2026-07-16 DAL496 JFK → DFW Jul 16, 22:55 UTCJul 17, 01:59 UTC3h 5m
2026-07-16 DAL496 JFK → DFW Jul 16, 22:53 UTCJul 17, 01:49 UTC2h 56m
2026-07-16 DAL1638 - Jul 16, 02:40 UTCJul 16, 04:55 UTC2h 15m
2026-07-15 DAL1638 - Jul 15, 20:00 UTCJul 15, 22:15 UTC2h 15m

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 N106DU page for operator, model, and routing details .

Mode-S A01B5C frequently asked

What is Mode-S code A01B5C?
A01B5C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N106DU.
Where is Mode-S A01B5C registered?
Mode-S code A01B5C 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 A01B5C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A01B5C, octal 50015534, decimal 10,492,764.
What flights does A01B5C operate?
Mode-S A01B5C has broadcast 20 distinct callsigns, including DAL1553, DAL1035, DAL675, DAL2716, DAL2677.