sensors Mode-S transponder
A2A41E
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N26996 · BOEING 787-9 Dreamliner · operated by BOEING CO
- Hex
- A2A41E
- Octal
- 50522036
- Decimal
- 10,658,846
- Country
- US
- Tail
- N26996
- Type
- B789
- Flights observed
- 125
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 3h ago
Last known position
Country allocation
The ICAO 24-bit address A2A41E 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 |
|---|---|---|---|
| UAL63 | United Airlines | 7 | 2026-04-21 |
| UAL6 | United Airlines | 7 | 2026-04-19 |
| UAL761 | United Airlines | 6 | 2026-04-14 |
| UAL62 | United Airlines | 6 | 2026-04-20 |
| UAL143D | United Airlines | 6 | 2026-04-16 |
| UAL892 | United Airlines | 5 | 2026-05-22 |
| UAL83 | United Airlines | 5 | 2026-05-28 |
| UAL82 | United Airlines | 5 | 2026-05-28 |
| UAL1227 | United Airlines | 5 | 2026-05-24 |
| UAL821 | United Airlines | 4 | 2026-05-04 |
| UAL262 | - | 4 | 2026-04-13 |
| UAL123 | United Airlines | 4 | 2026-05-24 |
| UAL122 | United Airlines | 4 | 2026-05-23 |
| UAL99 | United Airlines | 3 | 2026-05-05 |
| UAL820 | United Airlines | 3 | 2026-05-04 |
| UAL713 | United Airlines | 3 | 2026-05-27 |
| UAL263 | - | 3 | 2026-04-13 |
| UAL153 | United Airlines | 3 | 2026-05-08 |
| UAL115 | United Airlines | 3 | 2026-04-30 |
| UAL114 | United Airlines | 3 | 2026-05-01 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | UAL2403 | RDU → EWR | May 29, 16:25 UTC | May 29, 21:20 UTC | 4h 55m |
| 2026-05-28 | UAL83 | DEL → EWR | May 28, 19:05 UTC | May 29, 10:45 UTC | 15h 40m |
| 2026-05-28 | UAL82 | EWR → DEL | May 28, 01:50 UTC | May 28, 15:40 UTC | 13h 50m |
| 2026-05-28 | UAL82 | EWR → DEL | May 28, 01:44 UTC | May 28, 15:36 UTC | 13h 52m |
| 2026-05-27 | UAL713 | ORD → DEL | May 27, 17:35 UTC | May 27, 22:20 UTC | 4h 45m |
| 2026-05-27 | UAL61 | BRU → EWR | May 27, 01:14 UTC | May 27, 15:10 UTC | 13h 56m |
| 2026-05-26 | UAL60 | SFO → MEL | May 26, 07:59 UTC | May 26, 21:29 UTC | 13h 30m |
| 2026-05-26 | UAL60 | SFO → MEL | May 26, 07:10 UTC | May 26, 22:23 UTC | 15h 13m |
| 2026-05-24 | UAL1227 | PHX → IAD | May 24, 23:00 UTC | May 24, 23:20 UTC | 20m |
| 2026-05-24 | UAL1227 | PHX → IAD | May 24, 18:00 UTC | May 24, 21:45 UTC | 3h 45m |
| 2026-05-24 | UAL123 | ANC → ORD | May 24, 07:00 UTC | May 24, 13:50 UTC | 6h 50m |
| 2026-05-24 | UAL123 | ANC → ORD | May 24, 07:02 UTC | May 24, 13:50 UTC | 6h 48m |
| 2026-05-23 | UAL122 | IAD → LHR | May 23, 13:55 UTC | May 23, 20:00 UTC | 6h 6m |
| 2026-05-22 | UAL2480 | BOS → SFO | May 22, 21:40 UTC | May 23, 02:20 UTC | 4h 40m |
| 2026-05-22 | UAL892 | ICN → SFO | May 22, 08:25 UTC | May 22, 18:25 UTC | 10h 0m |
| 2026-05-22 | UAL892 | ICN → SFO | May 22, 08:31 UTC | May 22, 18:22 UTC | 9h 51m |
| 2026-05-21 | UAL893 | SFO → ICN | May 21, 18:30 UTC | May 22, 06:35 UTC | 12h 5m |
| 2026-05-21 | UAL806 | ICN → SFO | May 21, 02:40 UTC | May 21, 12:40 UTC | 10h 0m |
| 2026-05-20 | UAL805 | SFO → ICN | May 20, 07:15 UTC | May 20, 18:50 UTC | 11h 35m |
| 2026-05-19 | UAL1757 | PIT → DEN | May 19, 22:25 UTC | May 20, 03:25 UTC | 5h 0m |
| 2026-05-19 | UAL1849 | MCO → EWR | May 19, 15:40 UTC | May 19, 20:05 UTC | 4h 25m |
| 2026-05-18 | UAL1227 | PHX → IAD | May 18, 21:40 UTC | May 19, 03:15 UTC | 5h 35m |
| 2026-05-18 | UAL123 | ANC → ORD | May 18, 07:00 UTC | May 18, 13:50 UTC | 6h 50m |
| 2026-05-17 | UAL122 | IAD → LHR | May 17, 14:49 UTC | May 17, 20:40 UTC | 5h 51m |
| 2026-05-17 | UAL122 | IAD → LHR | May 17, 14:45 UTC | May 17, 19:30 UTC | 4h 45m |
| 2026-05-16 | UAL83 | DEL → EWR | May 16, 18:25 UTC | May 17, 09:50 UTC | 15h 25m |
| 2026-05-16 | UAL82 | EWR → DEL | May 16, 01:21 UTC | May 16, 15:31 UTC | 14h 10m |
| 2026-05-16 | UAL82 | EWR → DEL | May 16, 01:15 UTC | May 16, 15:35 UTC | 14h 21m |
| 2026-05-14 | UAL713 | ORD → DEL | May 14, 18:05 UTC | May 14, 22:45 UTC | 4h 40m |
| 2026-05-14 | UAL2 | SIN → SFO | May 14, 04:10 UTC | May 14, 15:15 UTC | 11h 5m |
| 2026-05-14 | UAL2 | SIN → SFO | May 14, 01:10 UTC | May 14, 01:20 UTC | 10m |
| 2026-05-13 | UAL1 | SFO → SIN | May 13, 06:20 UTC | May 13, 21:15 UTC | 14h 55m |
| 2026-05-12 | UAL1227 | PHX → IAD | May 12, 17:50 UTC | May 12, 23:20 UTC | 5h 30m |
| 2026-05-12 | UAL123 | ANC → ORD | May 12, 06:55 UTC | May 12, 14:00 UTC | 7h 5m |
| 2026-05-11 | UAL122 | IAD → LHR | May 11, 14:00 UTC | May 11, 19:55 UTC | 5h 55m |
| 2026-05-11 | UAL662 | EWR → DFW | May 11, 05:50 UTC | May 11, 10:15 UTC | 4h 25m |
| 2026-05-10 | UAL935 | LHR → LAX | May 10, 12:30 UTC | May 10, 22:49 UTC | 10h 20m |
| 2026-05-09 | UAL923 | LAX → LHR | May 9, 22:34 UTC | May 10, 08:40 UTC | 10h 5m |
| 2026-05-09 | UAL2692 | IAD → PHL | May 9, 13:54 UTC | May 9, 18:50 UTC | 4h 56m |
| 2026-05-09 | UAL2692 | IAD → PHL | May 9, 13:40 UTC | May 9, 18:50 UTC | 5h 10m |
| 2026-05-08 | UAL1855 | ORD → BOS | May 8, 20:35 UTC | May 9, 01:05 UTC | 4h 30m |
| 2026-05-08 | UAL153 | HKG → LAX | May 8, 05:08 UTC | May 8, 16:55 UTC | 11h 47m |
| 2026-05-08 | UAL153 | HKG → LAX | May 8, 04:49 UTC | May 8, 17:05 UTC | 12h 15m |
| 2026-05-08 | UAL153 | HKG → LAX | May 8, 02:19 UTC | May 8, 02:24 UTC | 5m |
| 2026-05-07 | UAL152 | LAX → HKG | May 7, 12:55 UTC | May 7, 13:10 UTC | 15m |
| 2026-05-06 | UAL152 | LAX → HKG | May 6, 19:15 UTC | May 7, 09:40 UTC | 14h 25m |
| 2026-05-05 | UAL99 | MEL → LAX | May 5, 23:51 UTC | May 6, 13:37 UTC | 13h 46m |
| 2026-05-05 | UAL99 | MEL → LAX | May 5, 23:51 UTC | May 6, 13:37 UTC | 13h 46m |
| 2026-05-05 | UAL99 | MEL → LAX | May 5, 23:50 UTC | May 6, 01:05 UTC | 1h 15m |
| 2026-05-05 | UAL98 | LAX → MEL | May 5, 06:14 UTC | May 5, 21:30 UTC | 15h 16m |
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 N26996 page for operator, model, and routing details .