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Aircraft
N76021
Common
- Mode S hex
- AA4440
- Manufacturer
- Boeing
- Serial number
- 39776
- Year built
- 201016 years old
- Operator
- United Airlines Inc (UAL)
- Country of registration
- États-UnisICAO address allocated by United States, aircraft registered in États-Unis.
- First contact
- 8 May 2016, 06:26
- Last contact
- 25 Sept 2026, 17:33
- Logged visits
- 280
The station's story
- Cumulative contact time
- 87 h
- Distinct days
- 195
- Highest captured altitude
- 41,000 ft
- Discovery rank
- #10,128 of 60,195
- Longest contact
- 0 h 32 min
Observed callsigns
UAL (271 contacts, 2016-2026)
Operator as per the registry of 28 Sept 2026; observed callsigns are the freshest measurement.
Visits
| Callsign | Route | First contact | Last contact | Altitude at end of contact | Positions |
|---|---|---|---|---|---|
| UAL44 | KSFO > LSZH | 11 May 2026, 08:4411 May 2026 | 11 May 2026, 09:05 | 15,350 ft | 1,116 |
| UAL18 | LIMC > KEWR | 3 May 2026, 10:183 May 2026 | 3 May 2026, 10:45 | 34,000 ft | 1,110 |
| UAL19 | KEWR > LIMC | 3 May 2026, 06:283 May 2026 | 3 May 2026, 06:51 | 23,300 ft | 1,415 |
| UAL506 | KDEN > KMCO | 28 Apr 2026, 16:5628 Apr 2026 | 28 Apr 2026, 16:57 | 34,000 ft | 3 |
| UAL507 | KDEN > KMSP | 28 Apr 2026, 12:1528 Apr 2026 | 28 Apr 2026, 12:42 | 39,000 ft | 1,372 |
| UAL506 | KDEN > KMCO | 18 Apr 2026, 16:4518 Apr 2026 | 18 Apr 2026, 17:12 | 34,000 ft | 1,502 |
| UAL507 | KDEN > KMSP | 18 Apr 2026, 12:0018 Apr 2026 | 18 Apr 2026, 12:27 | 39,000 ft | 1,053 |
| UAL506 | KDEN > KMCO | 31 Mar 2026, 17:0231 Mar 2026 | 31 Mar 2026, 17:22 | 32,000 ft | 1,459 |
| UAL507 | KDEN > KMSP | 31 Mar 2026, 11:4331 Mar 2026 | 31 Mar 2026, 12:08 | 39,025 ft | 1,094 |
| UAL194 | KSFO > EDDM | 16 Feb 2026, 09:0016 Feb 2026 | 16 Feb 2026, 09:17 | 33,000 ft | 1,119 |
| UAL509 | KDEN > KSEA | 28 Nov 2025, 13:5228 Nov 2025 | 28 Nov 2025, 14:18 | 32,000 ft | 1,348 |
| UAL510 | KDEN > KSFO | 28 Nov 2025, 08:3728 Nov 2025 | 28 Nov 2025, 09:01 | 39,000 ft | 1,714 |
| UAL510 | KDEN > KSFO | 27 Nov 2025, 09:1227 Nov 2025 | 27 Nov 2025, 09:36 | 37,000 ft | 1,214 |
| UAL18 | LIMC > KEWR | 26 Nov 2025, 10:1126 Nov 2025 | 26 Nov 2025, 10:35 | 34,000 ft | 1,209 |
| UAL19 | KEWR > LIMC | 26 Nov 2025, 06:0326 Nov 2025 | 26 Nov 2025, 06:25 | 25,125 ft | 1,957 |
| UAL510 | KDEN > KSFO | 16 Nov 2025, 10:3016 Nov 2025 | 16 Nov 2025, 10:51 | 40,000 ft | 1,142 |
| UAL18 | LIMC > KEWR | 12 Nov 2025, 10:0912 Nov 2025 | 12 Nov 2025, 10:33 | 30,000 ft | 1,097 |
| UAL19 | KEWR > LIMC | 12 Nov 2025, 06:4112 Nov 2025 | 12 Nov 2025, 06:59 | 26,100 ft | 1,093 |
| UAL18 | LIMC > KEWR | 11 Nov 2025, 10:0611 Nov 2025 | 11 Nov 2025, 10:28 | 32,000 ft | 1,291 |
| UAL19 | KEWR > LIMC | 11 Nov 2025, 06:2411 Nov 2025 | 11 Nov 2025, 06:48 | 27,450 ft | 2,027 |
| UAL18 | LIMC > KEWR | 10 Nov 2025, 10:3010 Nov 2025 | 10 Nov 2025, 10:56 | 34,175 ft | 1,329 |
| UAL19 | KEWR > LIMC | 10 Nov 2025, 07:1610 Nov 2025 | 10 Nov 2025, 07:35 | 27,000 ft | 1,145 |
| UAL509 | KDEN > KSEA | 3 Nov 2025, 14:053 Nov 2025 | 3 Nov 2025, 14:28 | 34,000 ft | 778 |
| UAL510 | KDEN > KSFO | 3 Nov 2025, 09:043 Nov 2025 | 3 Nov 2025, 09:25 | 39,000 ft | 832 |
| UAL18 | LIMC > KEWR | 17 Oct 2025, 10:4217 Oct 2025 | 17 Oct 2025, 11:10 | 34,000 ft | 1,111 |
