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| CIDR range | Maintainer | Description | Source |
|---|---|---|---|
| 12.12.105.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 24.237.0.0/16 | MAINT-AS8047 | General Communications Inc. ARIN allocation | RADB |
| 24.237.0.0/17 | LR-MAINT-LEVEL3 | LR-GCI-BLK1 | LEVEL3 |
| 24.237.128.0/18 | LR-MAINT-LEVEL3 | LR-GCI-BLK2 | LEVEL3 |
| 64.110.28.0/22 | MAINT-AS8047 | New GCI owned prefix | RADB |
| 64.186.96.0/23 | MAINT-AS11404 | Alaska Power & Telephone Company | RADB |
| 64.186.108.0/23 | MAINT-AS11404 | Alaska Power & Telephone Company | RADB |
| 64.186.110.0/23 | MAINT-AS11404 | Alaska Power & Telephone Company | RADB |
| 64.186.112.0/23 | MAINT-AS11404 | Alaska Power & Telephone Company | RADB |
| 64.186.114.0/24 | MAINT-AS11404 | Alaska Power & Telephone Company | RADB |
| 64.186.115.0/24 | MAINT-AS11404 | Alaska Power & Telephone Company | RADB |
| 64.186.116.0/23 | MAINT-AS11404 | Alaska Power & Telephone Company | RADB |
| 64.186.118.0/23 | MAINT-AS11404 | Alaska Power & Telephone Company | RADB |
| 64.186.120.0/23 | MAINT-AS11404 | Alaska Power & Telephone Company | RADB |
| 64.186.124.0/24 | MAINT-AS11404 | Alaska Power & Telephone Company | RADB |
| 64.186.125.0/24 | MAINT-AS11404 | Alaska Power & Telephone Company | RADB |
| 64.186.127.0/24 | MAINT-AS11404 | Alaska Power & Telephone Company | RADB |
| 65.74.0.0/17 | MAINT-AS8047 | General Communications Inc. ARIN allocation | RADB |
| 66.58.128.0/17 | MAINT-AS8047 | General Communications Inc. ARIN allocation | RADB |
| 66.223.128.0/17 | MAINT-AS8047 | Aggregate | RADB |
| 66.223.128.0/18 | MAINT-AS8047 | General Communications Inc. ARIN allocation | RADB |
| 66.223.192.0/19 | MAINT-AS8047 | General Communications Inc. ARIN allocation | RADB |
| 66.223.224.0/21 | MAINT-AS8047 | General Communications Inc. ARIN allocation | RADB |
| 66.223.232.0/24 | MAINT-AS8047 | General Communications Inc. ARIN allocation | RADB |
| 66.223.233.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 66.223.234.0/23 | MAINT-AS8047 | General Communications Inc. ARIN allocation | RADB |
| 66.223.236.0/22 | MAINT-AS8047 | General Communications Inc. ARIN allocation | RADB |
| 66.223.240.0/20 | MAINT-AS8047 | General Communications Inc. ARIN allocation | RADB |
| 67.58.0.0/19 | MAINT-AS8047 | General Communications Inc. ARIN allocation | RADB |
| 69.178.0.0/17 | MAINT-AS8047 | General Communications Inc. ARIN allocation | RADB |
| 72.42.128.0/18 | MAINT-AS8047 | General Communications Inc. ARIN allocation | RADB |
| 74.114.80.0/21 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 75.95.144.0/20 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 76.78.180.0/24 | MNT-APOG | APOGEE - University of Alaska Anchorage | ARIN |
| 136.226.0.0/16 | LR-MAINT-LEVEL3 | LR-GCI-BLK40 | LEVEL3 |
| 136.226.248.0/21 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 137.229.0.0/16 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 138.32.8.0/22 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 146.63.0.0/16 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 151.169.0.0/16 | LR-MAINT-LEVEL3 | LR-GCI-BLK42 | LEVEL3 |
| 158.145.0.0/16 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 170.136.124.0/24 | MAINT-AS8047 | VIADCORP | RADB |
| 192.161.132.0/22 | MAINT-AS8047 | Fairbanks North Star Borough School District | RADB |
| 192.189.215.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 192.189.216.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 192.189.217.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 192.189.218.0/24 | LR-MAINT-LEVEL3 | LR-GCI-BLK41 | LEVEL3 |
| 192.189.218.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 192.189.219.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 192.189.220.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 198.22.174.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 198.22.174.0/24 | LR-MAINT-LEVEL3 | LR-GCI-BLK5 | LEVEL3 |
| 198.22.190.0/24 | LR-MAINT-LEVEL3 | LR-GCI-BLK29 | LEVEL3 |
| 198.70.243.0/24 | LR-MAINT-LEVEL3 | LR-GCI-BLK30 | LEVEL3 |
| 198.99.16.0/21 | LR-MAINT-LEVEL3 | LR-GCI-BLK6 | LEVEL3 |
| 198.99.16.0/21 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 198.99.24.0/23 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 198.99.24.0/23 | LR-MAINT-LEVEL3 | LR-GCI-BLK7 | LEVEL3 |
| 198.183.169.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 198.185.228.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 199.58.55.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 199.59.216.0/22 | MAINT-AS11404 | Alaska Power & Telephone Company | RADB |
| 199.190.64.0/18 | MNT-GENER-72 | GCI Communication Corp | ARIN |
| 199.223.132.0/24 | LR-MAINT-LEVEL3 | LR-GCI-BLK8 | LEVEL3 |
| 199.249.161.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 204.17.169.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 204.17.196.0/24 | LR-MAINT-LEVEL3 | LR-GCI-BLK31 | LEVEL3 |
| 204.29.174.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 204.62.233.0/24 | LR-MAINT-LEVEL3 | LR-GCI-BLK39 | LEVEL3 |
| 204.71.138.0/23 | LR-MAINT-LEVEL3 | LR-GCI-BLK10 | LEVEL3 |
| 204.80.136.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 204.89.222.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 204.90.103.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 204.107.95.0/24 | LR-MAINT-LEVEL3 | LR-GCI-BLK11 | LEVEL3 |
| 204.126.118.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 204.126.119.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 205.140.73.0/24 | LR-MAINT-LEVEL3 | LR-GCI-BLK12 | LEVEL3 |
| 205.140.74.0/23 | LR-MAINT-LEVEL3 | LR-GCI-BLK13 | LEVEL3 |
| 205.140.76.0/22 | LR-MAINT-LEVEL3 | LR-GCI-BLK14 | LEVEL3 |
| 205.140.80.0/21 | LR-MAINT-LEVEL3 | LR-GCI-BLK15 | LEVEL3 |
| 205.148.192.0/18 | MNT-GENER-72 | GCI Communication Corp | ARIN |
| 205.159.28.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 205.159.91.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 205.166.26.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 206.96.48.0/20 | LR-MAINT-LEVEL3 | LR-GCI-BLK18 | LEVEL3 |
| 206.162.0.0/17 | MNT-GENER-72 | 2550 Denali Street | ARIN |
| 206.174.0.0/17 | MAINT-AS8047 | General Communications Inc. ARIN allocation | RADB |
| 206.223.192.0/19 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 206.223.202.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 208.69.196.0/23 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 208.69.199.0/24 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 208.138.130.0/23 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 208.155.80.0/20 | LR-MAINT-LEVEL3 | LR-GCI-BLK16 | LEVEL3 |
| 208.162.128.0/19 | LR-MAINT-LEVEL3 | LR-GCI-BLK25 | LEVEL3 |
| 209.165.128.0/18 | MAINT-AS8047 | General Communications Inc. ARIN allocation | RADB |
| 209.165.128.0/18 | LR-MAINT-LEVEL3 | LR-GCI-BLK26 | LEVEL3 |
| 216.115.112.0/20 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 216.115.120.0/21 | MAINT-AS11404 | Spectrum Networks Proxy Registration | RADB |
| 2610:100::/32 | MAINT-AS8047 | General Communications Inc. ARIN allocation | RADB |