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Aircraft
N12021
Common
- Mode S hex
- A0566A
- Manufacturer
- Boeing
- Serial number
- 66990
- Year built
- 20224 years old
- Operator
- United Airlines (UAL)
- Country of registration
- États-UnisICAO address allocated by United States, aircraft registered in États-Unis.
- First contact
- 8 Apr 2023, 06:05
- Last contact
- 3 Aug 2026, 11:54
- Logged visits
- 261
The station's story
- Cumulative contact time
- 87 h
- Distinct days
- 176
- Highest captured altitude
- 39,025 ft
- 1 corrupted frame(s) excluded from this maximum
- Discovery rank
- #48,119 of 57,441
- Longest contact
- 0 h 30 min
- Contacts on this Mode S address
- 262 contacts on the address, 261 under this registration: the address has carried several identities over time.
Observed callsigns
UAL (259 contacts, 2023-2026)
Operator as per the registry of 21.07.2026; observed callsigns are the freshest measurement.
Visits
| Callsign | Route | First contact | Last contact | Altitude at end of contact | Positions |
|---|---|---|---|---|---|
| UAL970 | KORD > LIRF | 14 Jun 2026, 06:1114 Jun 2026 | 14 Jun 2026, 06:36 | 36,975 ft | 1,669 |
| UAL971 | LIRF > KORD | 11 Jun 2026, 12:0311 Jun 2026 | 11 Jun 2026, 12:24 | 32,000 ft | 788 |
| UAL970 | KORD > LIRF | 11 Jun 2026, 07:4411 Jun 2026 | 11 Jun 2026, 08:05 | 39,000 ft | 1,148 |
| UAL415 | KDEN > KSBA | 8 Jun 2026, 16:228 Jun 2026 | 8 Jun 2026, 16:49 | 33,975 ft | 896 |
| UAL416 | KDEN > KMSO | 8 Jun 2026, 12:598 Jun 2026 | 8 Jun 2026, 13:25 | 21,250 ft | 857 |
| UAL415 | KDEN > KSBA | 7 Jun 2026, 15:577 Jun 2026 | 7 Jun 2026, 16:23 | 31,975 ft | 1,137 |
| UAL416 | KDEN > KMSO | 7 Jun 2026, 12:267 Jun 2026 | 7 Jun 2026, 12:46 | 26,450 ft | 670 |
| UAL415 | KDEN > KSBA | 2 Jun 2026, 16:242 Jun 2026 | 2 Jun 2026, 16:46 | 35,975 ft | 1,148 |
| UAL416 | KDEN > KMSO | 2 Jun 2026, 13:052 Jun 2026 | 2 Jun 2026, 13:29 | 21,800 ft | 1,228 |
| UAL415 | KDEN > KSBA | 1 Jun 2026, 15:471 Jun 2026 | 1 Jun 2026, 16:14 | 33,975 ft | 1,153 |
| UAL416 | KDEN > KMSO | 1 Jun 2026, 12:171 Jun 2026 | 1 Jun 2026, 12:37 | 22,500 ft | 1,071 |
| UAL415 | KDEN > KSBA | 31 May 2026, 16:1131 May 2026 | 31 May 2026, 16:38 | 34,000 ft | 1,261 |
| UAL416 | KDEN > KMSO | 31 May 2026, 12:5031 May 2026 | 31 May 2026, 13:12 | 22,600 ft | 757 |
| UAL415 | KDEN > KSBA | 30 May 2026, 15:4630 May 2026 | 30 May 2026, 16:13 | 33,975 ft | 1,453 |
| UAL416 | KDEN > KMSO | 30 May 2026, 12:2530 May 2026 | 30 May 2026, 12:48 | 22,950 ft | 1,000 |
| UAL971 | LIRF > KORD | 29 May 2026, 11:1129 May 2026 | 29 May 2026, 11:23 | 33,975 ft | 385 |
| UAL970 | KORD > LIRF | 29 May 2026, 06:3429 May 2026 | 29 May 2026, 06:55 | 37,000 ft | 894 |
| UAL423 | CYYZ > KDEN | 26 May 2026, 14:1626 May 2026 | 26 May 2026, 14:38 | 34,000 ft | 716 |
| UAL971 | LIRF > KORD | 25 May 2026, 12:1925 May 2026 | 25 May 2026, 12:30 | 33,975 ft | 411 |
| UAL970 | KORD > LIRF | 25 May 2026, 08:0125 May 2026 | 25 May 2026, 08:26 | 38,975 ft | 1,481 |
| UAL971 | LIRF > KORD | 20 May 2026, 11:0320 May 2026 | 20 May 2026, 11:23 | 31,975 ft | 1,209 |
| UAL970 | KORD > LIRF | 20 May 2026, 06:1020 May 2026 | 20 May 2026, 06:35 | 39,000 ft | 1,766 |
| UAL125 | LGAV > KEWR | 10 May 2026, 11:2010 May 2026 | 10 May 2026, 11:44 | 35,975 ft | 976 |
| UAL124 | KEWR > LGAV | 10 May 2026, 05:2010 May 2026 | 10 May 2026, 05:41 | 39,000 ft | 1,821 |
| UAL423 | CYYZ > KDEN | 4 May 2026, 13:564 May 2026 | 4 May 2026, 14:07 | 33,975 ft | 70 |
