sensors Mode-S transponder
AE571A
ICAO 24-bit transponder address
Currently assigned to 169036 · Boeing C-40A Clipper
- Hex
- AE571A
- Octal
- 53453432
- Decimal
- 11,425,562
- Tail
- 169036
- Type
- B737
No current signal · last broadcast Jul 25, 05:20 UTC
- Flights observed
- 135
- Distinct callsigns
- 20
- Country
- -
- Last broadcast
- Jul 25, 05:20 UTC
Last known position
Callsign history 20 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| ILNDR03 | - | 13 | 2026-05-17 |
| CNV036 | - | 13 | 2026-05-01 |
| CNV6622 | - | 10 | 2026-06-23 |
| CNV4364 | - | 9 | 2026-04-14 |
| CNV4753 | - | 7 | 2026-07-24 |
| CNV4944 | - | 6 | 2026-07-18 |
| CNV4836 | - | 6 | 2026-05-03 |
| CNV4642 | - | 6 | 2026-04-22 |
| CNV6609 | - | 5 | 2026-07-10 |
| CNV6630 | - | 4 | 2026-05-31 |
| CNV6623 | - | 4 | 2026-06-25 |
| CNV4783 | - | 4 | 2026-07-25 |
| CNV4057 | - | 4 | 2026-05-16 |
| CNV6629 | - | 3 | 2026-05-29 |
| CNV6628 | - | 3 | 2026-05-28 |
| CNV6619 | - | 3 | 2026-05-22 |
| CNV6617 | - | 3 | 2026-06-18 |
| CNV6615 | - | 3 | 2026-06-15 |
| CNV6613 | - | 3 | 2026-07-13 |
| CNV6611 | - | 3 | 2026-06-10 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | CNV4783 | - | Jul 25, 01:40 UTC | Jul 25, 05:20 UTC | 3h 40m |
| 2026-07-24 | CNV4783 | - | Jul 24, 22:50 UTC | Jul 25, 00:45 UTC | 1h 55m |
| 2026-07-24 | CNV4783 | - | Jul 24, 20:10 UTC | Jul 24, 21:05 UTC | 55m |
| 2026-07-24 | CNV4783 | - | Jul 24, 16:40 UTC | Jul 24, 18:00 UTC | 1h 20m |
| 2026-07-24 | CNV4753 | - | Jul 24, 00:40 UTC | Jul 24, 02:20 UTC | 1h 40m |
| 2026-07-23 | CNV4753 | - | Jul 23, 23:05 UTC | Jul 23, 23:45 UTC | 40m |
| 2026-07-23 | CNV4753 | - | Jul 23, 21:30 UTC | Jul 23, 22:00 UTC | 30m |
| 2026-07-23 | CNV4753 | - | Jul 23, 20:10 UTC | Jul 23, 20:40 UTC | 30m |
| 2026-07-23 | CNV4753 | - | Jul 23, 18:45 UTC | Jul 23, 19:05 UTC | 20m |
| 2026-07-23 | CNV4753 | - | Jul 23, 17:15 UTC | Jul 23, 17:45 UTC | 30m |
| 2026-07-22 | CNV4753 | - | Jul 22, 19:55 UTC | Jul 22, 21:15 UTC | 1h 20m |
| 2026-07-18 | CNV4944 | - | Jul 18, 01:50 UTC | Jul 18, 03:10 UTC | 1h 21m |
| 2026-07-17 | CNV4944 | - | Jul 17, 23:14 UTC | Jul 18, 00:45 UTC | 1h 30m |
| 2026-07-17 | CNV4944 | - | Jul 17, 16:04 UTC | Jul 17, 21:25 UTC | 5h 20m |
| 2026-07-16 | CNV4944 | - | Jul 16, 13:20 UTC | Jul 16, 18:25 UTC | 5h 5m |
| 2026-07-15 | CNV4944 | - | Jul 15, 11:20 UTC | Jul 15, 13:50 UTC | 2h 30m |
| 2026-07-15 | CNV4944 | - | Jul 15, 07:25 UTC | Jul 15, 10:25 UTC | 3h 0m |
| 2026-07-13 | CNV6613 | - | Jul 13, 17:35 UTC | Jul 13, 18:10 UTC | 35m |
| 2026-07-13 | CNV6613 | - | Jul 13, 14:10 UTC | Jul 13, 16:25 UTC | 2h 15m |
| 2026-07-13 | CNV6613 | - | Jul 13, 10:35 UTC | Jul 13, 13:15 UTC | 2h 40m |
| 2026-07-10 | CNV6609 | - | Jul 10, 08:05 UTC | Jul 10, 10:25 UTC | 2h 20m |
| 2026-07-09 | CNV6609 | - | Jul 9, 14:45 UTC | Jul 9, 17:05 UTC | 2h 20m |
| 2026-07-09 | CNV6609 | - | Jul 9, 10:50 UTC | Jul 9, 13:15 UTC | 2h 25m |
| 2026-07-09 | CNV6609 | - | Jul 9, 07:25 UTC | Jul 9, 09:50 UTC | 2h 25m |
| 2026-07-08 | CNV6609 | - | Jul 8, 11:10 UTC | Jul 8, 11:50 UTC | 40m |
| 2026-07-07 | CNV6607 | - | Jul 7, 13:55 UTC | Jul 7, 16:15 UTC | 2h 20m |
| 2026-07-07 | CNV6607 | - | Jul 7, 10:20 UTC | Jul 7, 12:50 UTC | 2h 30m |
| 2026-07-03 | CNV6602 | - | Jul 3, 17:10 UTC | Jul 3, 17:45 UTC | 35m |
| 2026-07-03 | CNV6602 | - | Jul 3, 14:35 UTC | Jul 3, 15:20 UTC | 45m |
| 2026-07-02 | CNV6602 | - | Jul 2, 07:30 UTC | Jul 2, 09:25 UTC | 1h 55m |
| 2026-06-25 | CNV6623 | - | Jun 25, 13:05 UTC | Jun 25, 13:45 UTC | 40m |
| 2026-06-25 | CNV6623 | - | Jun 25, 10:55 UTC | Jun 25, 12:04 UTC | 1h 10m |
| 2026-06-24 | CNV6623 | - | Jun 24, 12:25 UTC | Jun 24, 13:50 UTC | 1h 25m |
| 2026-06-23 | CNV6623 | - | Jun 23, 13:50 UTC | Jun 23, 14:39 UTC | 50m |
| 2026-06-23 | CNV6622 | - | Jun 23, 11:49 UTC | Jun 23, 12:29 UTC | 40m |
| 2026-06-22 | CNV6622 | - | Jun 22, 15:40 UTC | Jun 22, 18:15 UTC | 2h 35m |
| 2026-06-22 | CNV6622 | - | Jun 22, 10:55 UTC | Jun 22, 14:40 UTC | 3h 45m |
| 2026-06-22 | CNV6622 | - | Jun 22, 07:19 UTC | Jun 22, 09:45 UTC | 2h 25m |
| 2026-06-20 | CNV6620 | - | Jun 20, 10:55 UTC | Jun 20, 12:14 UTC | 1h 20m |
| 2026-06-20 | CNV6620 | - | Jun 20, 08:19 UTC | Jun 20, 09:24 UTC | 1h 5m |
| 2026-06-18 | CNV6617 | - | Jun 18, 10:15 UTC | Jun 18, 11:25 UTC | 1h 10m |
| 2026-06-17 | CNV6617 | - | Jun 17, 11:15 UTC | Jun 17, 13:55 UTC | 2h 40m |
| 2026-06-17 | CNV6617 | - | Jun 17, 07:50 UTC | Jun 17, 10:15 UTC | 2h 25m |
| 2026-06-15 | CNV6615 | - | Jun 15, 15:19 UTC | Jun 15, 17:50 UTC | 2h 30m |
| 2026-06-15 | CNV6615 | - | Jun 15, 10:50 UTC | Jun 15, 14:30 UTC | 3h 40m |
| 2026-06-15 | CNV6615 | - | Jun 15, 08:10 UTC | Jun 15, 09:25 UTC | 1h 15m |
| 2026-06-10 | CNV6611 | - | Jun 10, 17:05 UTC | Jun 10, 18:50 UTC | 1h 45m |
| 2026-06-10 | CNV6611 | - | Jun 10, 12:40 UTC | Jun 10, 15:40 UTC | 3h 0m |
| 2026-06-10 | CNV6611 | - | Jun 10, 06:45 UTC | Jun 10, 11:05 UTC | 4h 20m |
| 2026-06-04 | CNV6604 | - | Jun 4, 15:55 UTC | Jun 4, 17:15 UTC | 1h 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 169036 page for operator, model, and routing details .
Mode-S AE571A frequently asked
What is Mode-S code AE571A?
AE571A is an ICAO 24-bit transponder address. Assigned to 169036.
Is AE571A broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 05:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE571A, octal 53453432, decimal 11,425,562.