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
- Flights observed
- 104
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 1h ago
Last known position
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 |
|---|---|---|---|
| DAL41 | Delta Air Lines | 9 | 2026-05-25 |
| 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 |
| DAL201 | Delta Air Lines | 6 | 2026-05-23 |
| DAL200 | Delta Air Lines | 6 | 2026-05-23 |
| DAL27 | Delta Air Lines | 5 | 2026-05-20 |
| DAL158 | Delta Air Lines | 5 | 2026-05-21 |
| DAL290 | Delta Air Lines | 4 | 2026-04-19 |
| DAL26 | Delta Air Lines | 4 | 2026-05-22 |
| DAL189 | Delta Air Lines | 4 | 2026-05-06 |
| DAL763 | Delta Air Lines | 3 | 2026-05-24 |
| DAL210 | Delta Air Lines | 3 | 2026-05-03 |
| DAL188 | Delta Air Lines | 3 | 2026-05-07 |
| DAL159 | Delta Air Lines | 3 | 2026-05-21 |
| DAL7 | Delta Air Lines | 2 | 2026-05-26 |
| DAL65 | Delta Air Lines | 2 | 2026-04-22 |
| DAL64 | Delta Air Lines | 2 | 2026-04-23 |
| DAL327 | Delta Air Lines | 2 | 2026-05-09 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | DAL170 | ICN → MSP | May 29, 13:10 UTC | May 30, 01:10 UTC | 12h 0m |
| 2026-05-28 | DAL171 | CDG → SLC | May 28, 21:45 UTC | May 29, 11:10 UTC | 13h 25m |
| 2026-05-28 | DAL120 | HND → MSP | May 28, 07:54 UTC | May 28, 19:06 UTC | 11h 12m |
| 2026-05-28 | DAL120 | HND → MSP | May 28, 07:55 UTC | May 28, 08:35 UTC | 40m |
| 2026-05-27 | DAL167 | SEA → HND | May 27, 19:25 UTC | May 28, 05:10 UTC | 9h 45m |
| 2026-05-27 | DAL166 | HND → SEA | May 27, 07:35 UTC | May 27, 16:10 UTC | 8h 35m |
| 2026-05-26 | DAL7 | LAX → HND | May 26, 17:30 UTC | May 27, 04:49 UTC | 11h 20m |
| 2026-05-25 | DAL40 | SYD → LAX | May 25, 23:49 UTC | May 26, 13:19 UTC | 13h 30m |
| 2026-05-25 | DAL41 | LAX → SYD | May 25, 05:38 UTC | May 25, 19:51 UTC | 14h 13m |
| 2026-05-25 | DAL41 | LAX → SYD | May 25, 05:40 UTC | May 25, 20:04 UTC | 14h 25m |
| 2026-05-24 | DAL763 | ATL → LGA | May 24, 23:15 UTC | May 25, 03:25 UTC | 4h 10m |
| 2026-05-23 | DAL201 | JNB → ATL | May 23, 21:05 UTC | May 24, 13:15 UTC | 16h 10m |
| 2026-05-23 | DAL200 | ATL → JNB | May 23, 03:05 UTC | May 23, 17:45 UTC | 14h 40m |
| 2026-05-23 | DAL200 | ATL → JNB | May 23, 03:05 UTC | May 23, 04:05 UTC | 1h 0m |
| 2026-05-22 | DAL26 | ICN → ATL | May 22, 10:20 UTC | May 22, 23:10 UTC | 12h 50m |
| 2026-05-21 | DAL159 | DTW → ICN | May 21, 17:00 UTC | May 22, 06:50 UTC | 13h 50m |
| 2026-05-21 | DAL158 | ICN → DTW | May 21, 01:30 UTC | May 21, 03:05 UTC | 1h 35m |
| 2026-05-21 | DAL158 | ICN → DTW | May 21, 01:28 UTC | May 21, 13:27 UTC | 11h 59m |
| 2026-05-21 | DAL158 | ICN → DTW | May 21, 01:28 UTC | May 21, 13:29 UTC | 12h 1m |
| 2026-05-20 | DAL27 | ATL → ICN | May 20, 03:50 UTC | May 20, 11:10 UTC | 7h 21m |
| 2026-05-20 | DAL27 | ATL → ICN | May 20, 03:49 UTC | May 20, 18:22 UTC | 14h 33m |
| 2026-05-18 | DAL201 | JNB → ATL | May 18, 20:15 UTC | May 19, 12:25 UTC | 16h 10m |
| 2026-05-18 | DAL200 | ATL → JNB | May 18, 02:42 UTC | May 18, 17:26 UTC | 14h 44m |
| 2026-05-18 | DAL200 | ATL → JNB | May 18, 02:45 UTC | May 18, 17:30 UTC | 14h 45m |
| 2026-05-16 | DAL201 | JNB → ATL | May 16, 20:10 UTC | May 16, 20:40 UTC | 30m |
| 2026-05-16 | DAL201 | JNB → ATL | May 16, 20:08 UTC | May 17, 11:55 UTC | 15h 47m |
| 2026-05-16 | DAL200 | ATL → JNB | May 16, 02:50 UTC | May 16, 17:30 UTC | 14h 41m |
| 2026-05-15 | DAL26 | ICN → ATL | May 15, 10:20 UTC | May 15, 12:15 UTC | 1h 55m |
| 2026-05-15 | DAL26 | ICN → ATL | May 15, 10:19 UTC | May 15, 23:43 UTC | 13h 24m |
| 2026-05-14 | DAL159 | DTW → ICN | May 14, 17:50 UTC | May 15, 06:55 UTC | 13h 5m |
| 2026-05-14 | DAL158 | ICN → DTW | May 14, 02:20 UTC | May 14, 14:55 UTC | 12h 35m |
| 2026-05-13 | DAL27 | ATL → ICN | May 13, 03:55 UTC | May 13, 18:15 UTC | 14h 20m |
| 2026-05-12 | DAL26 | ICN → ATL | May 12, 10:50 UTC | May 12, 23:55 UTC | 13h 5m |
| 2026-05-11 | DAL159 | DTW → ICN | May 11, 18:25 UTC | May 12, 08:25 UTC | 14h 0m |
| 2026-05-11 | DAL158 | ICN → DTW | May 11, 01:25 UTC | May 11, 13:50 UTC | 12h 25m |
| 2026-05-10 | DAL27 | ATL → ICN | May 10, 03:45 UTC | May 10, 18:20 UTC | 14h 35m |
| 2026-05-10 | DAL27 | ATL → ICN | May 10, 03:41 UTC | May 10, 18:28 UTC | 14h 47m |
| 2026-05-09 | DAL327 | ATL → BOS | May 9, 17:05 UTC | May 9, 20:40 UTC | 3h 35m |
| 2026-05-08 | DAL763 | ATL → LGA | May 8, 23:25 UTC | May 9, 03:35 UTC | 4h 10m |
| 2026-05-08 | DAL327 | ATL → BOS | May 8, 17:00 UTC | May 8, 20:40 UTC | 3h 40m |
| 2026-05-08 | DAL763 | ATL → LGA | May 8, 01:19 UTC | May 8, 05:49 UTC | 4h 30m |
| 2026-05-07 | DAL188 | ICN → ATL | May 7, 09:30 UTC | May 7, 22:15 UTC | 12h 45m |
| 2026-05-07 | DAL188 | ICN → ATL | May 7, 09:26 UTC | May 7, 22:13 UTC | 12h 47m |
| 2026-05-06 | DAL189 | ATL → ICN | May 6, 14:05 UTC | May 6, 21:40 UTC | 7h 34m |
| 2026-05-06 | DAL189 | ATL → ICN | May 6, 14:02 UTC | May 7, 05:10 UTC | 15h 8m |
| 2026-05-05 | DAL188 | ICN → ATL | May 5, 07:40 UTC | May 5, 20:25 UTC | 12h 45m |
| 2026-05-04 | DAL189 | ATL → ICN | May 4, 13:54 UTC | May 5, 05:15 UTC | 15h 21m |
| 2026-05-04 | DAL189 | ATL → ICN | May 4, 13:55 UTC | May 5, 05:10 UTC | 15h 16m |
| 2026-05-03 | DAL211 | PRG → JFK | May 3, 18:20 UTC | May 3, 18:40 UTC | 20m |
| 2026-05-03 | DAL211 | PRG → JFK | May 3, 18:19 UTC | May 4, 10:24 UTC | 16h 5m |
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 .