Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A6AAB5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N529DN · operated by BANK OF UTAH TRUSTEE

Hex
A6AAB5
Octal
51525265
Decimal
10,922,677
Country
US
Tail
N529DN
Type
A359
No current signal · last broadcast Jul 26, 05:20 UTC
Flights observed
220
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 05:20 UTC

Last known position

Most recent position reported by Mode-S A6AAB5.

Country allocation

The ICAO 24-bit address A6AAB5 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
DAL27 - 15 2026-07-05
DAL201 Delta Air Lines 15 2026-07-21
DAL200 Delta Air Lines 15 2026-07-21
DAL159 - 13 2026-07-06
DAL158 - 13 2026-07-06
DAL26 - 11 2026-07-09
DAL189 Delta Air Lines 10 2026-07-23
DAL41 Delta Air Lines 9 2026-05-25
DAL188 Delta Air Lines 9 2026-07-24
DAL173 - 9 2026-07-08
DAL172 - 8 2026-07-07
DAL763 Delta Air Lines 7 2026-07-25
DAL40 Delta Air Lines 7 2026-05-25
DAL39 Delta Air Lines 7 2026-04-17
DAL291 Delta Air Lines 7 2026-04-19
DAL38 Delta Air Lines 6 2026-04-18
DAL327 - 6 2026-07-20
DAL211 - 6 2026-07-13
DAL294 Delta Air Lines 5 2026-05-31
DAL210 - 5 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL12 ATL → SEA Jul 26, 04:30 UTCJul 26, 05:10 UTC40m
2026-07-26 DAL12 ATL → SEA Jul 26, 00:55 UTCJul 26, 02:05 UTC1h 10m
2026-07-25 DAL11 LHR → MSP Jul 25, 07:35 UTCJul 25, 22:30 UTC14h 55m
2026-07-25 DAL763 ATL → LGA Jul 25, 00:40 UTCJul 25, 04:25 UTC3h 45m
2026-07-24 DAL188 ICN → ATL Jul 24, 21:45 UTCJul 24, 21:50 UTC5m
2026-07-24 DAL188 ICN → ATL Jul 24, 07:50 UTCJul 24, 21:15 UTC13h 25m
2026-07-24 DAL188 ICN → ATL Jul 24, 07:44 UTCJul 24, 21:30 UTC13h 46m
2026-07-23 DAL189 ATL → ICN Jul 23, 13:55 UTCJul 24, 04:31 UTC14h 36m
2026-07-23 DAL189 ATL → ICN Jul 23, 13:55 UTCJul 24, 04:30 UTC14h 35m
2026-07-21 DAL201 JNB → ATL Jul 21, 20:05 UTCJul 22, 11:50 UTC15h 45m
2026-07-21 DAL201 JNB → ATL Jul 21, 20:03 UTCJul 22, 11:55 UTC15h 52m
2026-07-21 DAL200 ATL → JNB Jul 21, 02:25 UTCJul 21, 17:20 UTC14h 55m
2026-07-21 DAL200 ATL → JNB Jul 21, 02:25 UTCJul 21, 17:15 UTC14h 50m
2026-07-20 DAL327 - Jul 20, 18:20 UTCJul 20, 22:20 UTC4h 0m
2026-07-20 DAL88 - Jul 20, 02:50 UTCJul 20, 16:05 UTC13h 15m
2026-07-19 DAL89 - Jul 19, 06:20 UTCJul 19, 20:05 UTC13h 45m
2026-07-19 DAL763 - Jul 19, 00:05 UTCJul 19, 03:45 UTC3h 40m
2026-07-18 DAL188 ICN → ATL Jul 18, 07:50 UTCJul 18, 21:20 UTC13h 30m
2026-07-17 DAL189 ATL → ICN Jul 17, 14:00 UTCJul 18, 03:50 UTC13h 51m
2026-07-16 DAL327 - Jul 16, 18:34 UTCJul 16, 22:35 UTC4h 0m
2026-07-16 DAL88 - Jul 16, 02:20 UTCJul 16, 15:45 UTC13h 25m
2026-07-15 DAL89 - Jul 15, 06:25 UTCJul 15, 20:05 UTC13h 40m
2026-07-15 DAL89 LAX → HKG Jul 15, 06:23 UTCJul 15, 20:01 UTC13h 38m
2026-07-15 DAL763 - Jul 15, 00:25 UTCJul 15, 04:10 UTC3h 45m
2026-07-14 DAL188 - Jul 14, 07:50 UTCJul 14, 09:30 UTC1h 40m
2026-07-14 DAL188 ICN → ATL Jul 14, 07:45 UTCJul 14, 21:34 UTC13h 49m
2026-07-13 DAL189 ATL → ICN Jul 13, 15:20 UTCJul 14, 05:40 UTC14h 20m
2026-07-13 DAL211 - Jul 13, 08:35 UTCJul 13, 09:30 UTC55m
2026-07-12 DAL211 - Jul 12, 18:15 UTCJul 12, 18:25 UTC10m
2026-07-12 DAL211 CPT → ATL Jul 12, 18:14 UTCJul 13, 09:28 UTC15h 14m
2026-07-12 DAL211 CPT → ATL Jul 12, 18:14 UTCJul 13, 09:32 UTC15h 18m
2026-07-12 DAL210 ATL → CPT Jul 12, 01:20 UTCJul 12, 15:38 UTC14h 18m
2026-07-12 DAL210 - Jul 12, 01:20 UTCJul 12, 02:15 UTC55m
2026-07-10 DAL201 - Jul 10, 20:10 UTCJul 11, 11:35 UTC15h 25m
2026-07-10 DAL200 - Jul 10, 02:20 UTCJul 10, 17:10 UTC14h 50m
2026-07-09 DAL26 ICN → ATL Jul 9, 10:10 UTCJul 9, 23:30 UTC13h 20m
2026-07-08 DAL173 SLC → ICN Jul 8, 18:00 UTCJul 9, 06:25 UTC12h 25m
2026-07-08 DAL173 SLC → ICN Jul 8, 17:59 UTCJul 9, 06:34 UTC12h 35m
2026-07-07 DAL172 ICN → SLC Jul 7, 10:50 UTCJul 7, 21:45 UTC10h 55m
2026-07-07 DAL172 ICN → SLC Jul 7, 10:46 UTCJul 7, 21:48 UTC11h 2m
2026-07-06 DAL159 - Jul 6, 17:00 UTCJul 7, 06:45 UTC13h 45m
2026-07-06 DAL158 - Jul 6, 02:00 UTCJul 6, 14:30 UTC12h 30m
2026-07-05 DAL27 ATL → ICN Jul 5, 04:20 UTCJul 5, 18:45 UTC14h 25m
2026-07-05 DAL27 ATL → ICN Jul 5, 04:20 UTCJul 5, 18:46 UTC14h 26m
2026-07-04 DAL26 ICN → ATL Jul 4, 10:05 UTCJul 4, 23:25 UTC13h 20m
2026-07-03 DAL173 MXP → JFK Jul 3, 18:05 UTCJul 4, 06:40 UTC12h 35m
2026-07-02 DAL172 ICN → SLC Jul 2, 10:35 UTCJul 2, 21:00 UTC10h 25m
2026-07-02 DAL172 ICN → SLC Jul 2, 10:35 UTCJul 2, 20:50 UTC10h 15m
2026-07-01 DAL159 - Jul 1, 17:20 UTCJul 2, 07:05 UTC13h 45m
2026-07-01 DAL159 DTW → ICN Jul 1, 17:16 UTCJul 2, 07:14 UTC13h 58m

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 N529DN page for operator, model, and routing details .

Mode-S A6AAB5 frequently asked

What is Mode-S code A6AAB5?
A6AAB5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N529DN.
Where is Mode-S A6AAB5 registered?
Mode-S code A6AAB5 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 A6AAB5 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 05:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6AAB5, octal 51525265, decimal 10,922,677.
What flights does A6AAB5 operate?
Mode-S A6AAB5 has broadcast 20 distinct callsigns, including DAL27, DAL201, DAL200, DAL159, DAL158.