sensors Mode-S transponder
A2A3B6
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N26967 · BOEING 787-9 Dreamliner · operated by UNITED AIRLINES INC
- Hex
- A2A3B6
- Octal
- 50521666
- Decimal
- 10,658,742
- Country
- US
- Tail
- N26967
- Type
- B789
- Flights observed
- 207
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 6h ago
Last known position
Country allocation
The ICAO 24-bit address A2A3B6 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 |
|---|---|---|---|
| UAL821 | United Airlines | 10 | 2026-05-23 |
| UAL820 | United Airlines | 8 | 2026-05-23 |
| UAL115 | - | 8 | 2026-07-04 |
| UAL114 | - | 8 | 2026-07-05 |
| UAL839 | United Airlines | 7 | 2026-05-24 |
| UAL806 | - | 6 | 2026-07-03 |
| UAL60 | - | 6 | 2026-07-13 |
| UAL2096 | United Airlines | 6 | 2026-05-25 |
| UAL187 | United Airlines | 6 | 2026-06-02 |
| UAL923 | United Airlines | 5 | 2026-05-20 |
| UAL893 | - | 5 | 2026-07-10 |
| UAL892 | - | 5 | 2026-07-11 |
| UAL842 | United Airlines | 5 | 2026-05-25 |
| UAL83 | United Airlines | 5 | 2026-05-26 |
| UAL29 | - | 5 | 2026-07-06 |
| UAL188 | United Airlines | 5 | 2026-06-02 |
| UAL1321 | United Airlines | 5 | 2026-05-09 |
| UAL82 | United Airlines | 4 | 2026-05-26 |
| UAL805 | - | 4 | 2026-07-02 |
| UAL79 | United Airlines | 4 | 2026-05-16 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | UAL61 | - | Jul 14, 01:50 UTC | Jul 14, 02:55 UTC | 1h 5m |
| 2026-07-13 | UAL60 | SFO → MEL | Jul 13, 08:16 UTC | Jul 13, 23:14 UTC | 14h 58m |
| 2026-07-13 | UAL60 | - | Jul 13, 08:10 UTC | Jul 13, 21:30 UTC | 13h 20m |
| 2026-07-12 | UAL969 | - | Jul 12, 13:20 UTC | Jul 12, 23:50 UTC | 10h 30m |
| 2026-07-11 | UAL968 | SFO → AMS | Jul 11, 22:15 UTC | Jul 12, 07:50 UTC | 9h 35m |
| 2026-07-11 | UAL892 | ICN → SFO | Jul 11, 09:05 UTC | Jul 11, 19:20 UTC | 10h 15m |
| 2026-07-10 | UAL893 | SFO → ICN | Jul 10, 20:00 UTC | Jul 11, 07:00 UTC | 11h 0m |
| 2026-07-10 | UAL870 | SYD → SFO | Jul 10, 00:50 UTC | Jul 10, 13:35 UTC | 12h 45m |
| 2026-07-09 | UAL863 | SFO → SYD | Jul 9, 06:45 UTC | Jul 9, 21:35 UTC | 14h 50m |
| 2026-07-09 | UAL863 | - | Jul 9, 07:00 UTC | Jul 9, 07:20 UTC | 20m |
| 2026-07-08 | UAL1593 | - | Jul 8, 13:50 UTC | Jul 8, 19:05 UTC | 5h 15m |
| 2026-07-08 | UAL1141 | SFO → EWR | Jul 8, 06:15 UTC | Jul 8, 10:50 UTC | 4h 35m |
| 2026-07-06 | UAL28 | - | Jul 6, 15:40 UTC | Jul 7, 03:25 UTC | 11h 45m |
| 2026-07-06 | UAL29 | - | Jul 6, 10:20 UTC | Jul 6, 10:30 UTC | 10m |
| 2026-07-05 | UAL29 | SFO → SIN | Jul 5, 18:41 UTC | Jul 6, 10:35 UTC | 15h 54m |
| 2026-07-05 | UAL29 | - | Jul 5, 19:00 UTC | Jul 6, 08:50 UTC | 13h 50m |
| 2026-07-05 | UAL114 | - | Jul 5, 07:20 UTC | Jul 5, 14:50 UTC | 7h 30m |
| 2026-07-04 | UAL115 | SFO → PPT | Jul 4, 21:00 UTC | Jul 5, 04:50 UTC | 7h 50m |
| 2026-07-04 | UAL1757 | - | Jul 4, 03:00 UTC | Jul 4, 07:50 UTC | 4h 50m |
| 2026-07-03 | UAL1849 | MCO → EWR | Jul 3, 19:00 UTC | Jul 3, 23:35 UTC | 4h 35m |
| 2026-07-03 | UAL806 | ICN → SFO | Jul 3, 02:56 UTC | Jul 3, 12:44 UTC | 9h 48m |
| 2026-07-03 | UAL806 | ICN → SFO | Jul 3, 02:45 UTC | Jul 3, 12:50 UTC | 10h 5m |
| 2026-07-02 | UAL805 | SFO → ICN | Jul 2, 07:49 UTC | Jul 2, 19:38 UTC | 11h 49m |
| 2026-07-02 | UAL805 | SFO → ICN | Jul 2, 07:55 UTC | Jul 2, 19:45 UTC | 11h 50m |
| 2026-07-01 | UAL114 | - | Jul 1, 08:05 UTC | Jul 1, 15:35 UTC | 7h 30m |
| 2026-07-01 | UAL114 | PPT → SFO | Jul 1, 08:10 UTC | Jul 1, 15:26 UTC | 7h 16m |
| 2026-06-30 | UAL115 | SFO → PPT | Jun 30, 21:25 UTC | Jul 1, 05:20 UTC | 7h 55m |
| 2026-06-30 | UAL114 | - | Jun 30, 07:25 UTC | Jun 30, 08:05 UTC | 40m |
| 2026-06-30 | UAL114 | PPT → SFO | Jun 30, 07:30 UTC | Jun 30, 15:15 UTC | 7h 45m |
| 2026-06-29 | UAL115 | SFO → PPT | Jun 29, 20:52 UTC | Jun 30, 04:45 UTC | 7h 53m |
| 2026-06-29 | UAL115 | SFO → PPT | Jun 29, 20:49 UTC | Jun 30, 04:45 UTC | 7h 56m |
| 2026-06-29 | UAL61 | MEL → SFO | Jun 29, 01:10 UTC | Jun 29, 14:39 UTC | 13h 30m |
| 2026-06-28 | UAL60 | SFO → MEL | Jun 28, 07:01 UTC | Jun 28, 22:08 UTC | 15h 7m |
| 2026-06-28 | UAL60 | - | Jun 28, 07:14 UTC | Jun 28, 07:50 UTC | 35m |
| 2026-06-27 | UAL1757 | IAD → SFO | Jun 27, 22:18 UTC | Jun 28, 03:43 UTC | 5h 25m |
| 2026-06-27 | UAL1757 | - | Jun 27, 22:20 UTC | Jun 28, 03:45 UTC | 5h 25m |
| 2026-06-27 | UAL613 | - | Jun 27, 02:09 UTC | Jun 27, 10:14 UTC | 8h 5m |
| 2026-06-26 | UAL612 | - | Jun 26, 10:10 UTC | Jun 27, 09:29 UTC | 23h 20m |
| 2026-06-26 | UAL612 | - | Jun 26, 03:34 UTC | Jun 27, 02:55 UTC | 23h 20m |
| 2026-06-26 | UAL612 | - | Jun 26, 03:20 UTC | Jun 26, 11:05 UTC | 7h 45m |
| 2026-06-24 | UAL2274 | - | Jun 24, 20:40 UTC | Jun 25, 00:49 UTC | 4h 10m |
| 2026-06-24 | UAL2274 | SFO → IAD | Jun 24, 20:12 UTC | Jun 25, 00:45 UTC | 4h 33m |
| 2026-06-24 | UAL1147 | IAD → SFO | Jun 24, 12:54 UTC | Jun 24, 18:15 UTC | 5h 20m |
| 2026-06-23 | UAL2023 | CPT → IAD | Jun 23, 18:04 UTC | Jun 24, 09:00 UTC | 14h 55m |
| 2026-06-23 | UAL1011 | IAD → CPT | Jun 23, 00:04 UTC | Jun 23, 14:15 UTC | 14h 10m |
| 2026-06-22 | UAL1849 | MCO → EWR | Jun 22, 15:24 UTC | Jun 22, 19:44 UTC | 4h 20m |
| 2026-06-21 | UAL892 | ICN → SFO | Jun 21, 08:16 UTC | Jun 21, 18:09 UTC | 9h 53m |
| 2026-06-21 | UAL892 | - | Jun 21, 07:59 UTC | Jun 21, 18:14 UTC | 10h 15m |
| 2026-06-20 | UAL893 | SFO → ICN | Jun 20, 18:10 UTC | Jun 21, 05:09 UTC | 10h 59m |
| 2026-06-20 | UAL893 | - | Jun 20, 18:04 UTC | Jun 21, 03:30 UTC | 9h 25m |
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 N26967 page for operator, model, and routing details .