| 66.0.0.0/8 | WHOIS (ARIN) | American Registry for Internet Numbers | US |
| 66.113.32.0/19 | BGP route | AS8057 Vision Net, Inc. | — |
| 66.113.32.0/19 | WHOIS (ARIN) | Vision Net, Inc. | US |
| 66.113.32.0/19 | ARIN assigned | — | US |
| 66.113.48.0/21 | BGP route | AS19605 3 Rivers Telephone Cooperative, Inc. | — |
| 66.113.48.0/21 | WHOIS (ARIN) | 3 Rivers Telephone Cooperative, Inc. | US |
| 66.113.56.0/22 | BGP route | AS33339 Nemont | — |
| 66.113.56.0/22 | WHOIS (ARIN) | Nemont Telephone | US |
| 66.113.46.0/23 | BGP route | AS33339 Nemont | — |
| 66.113.60.0/23 | BGP route | AS40933 Triangle Communications | — |
| 66.113.60.0/23 | WHOIS (ARIN) | Triangle Communications | US |
| 66.113.32.0/24 | WHOIS (ARIN) | Vision Net Inc. - Customers | US |
| 66.113.33.0/24 | WHOIS (ARIN) | Montana.Net | US |
| 66.113.34.0/24 | BGP route | AS399079 Linctel Communications Inc. | — |
| 66.113.34.0/24 | WHOIS (ARIN) | Linctel Communications Inc. | US |
| 66.113.35.0/24 | BGP route | AS33339 Nemont | — |
| 66.113.35.0/24 | WHOIS (ARIN) | Nemont Telephone | US |
| 66.113.36.0/24 | BGP route | AS33339 Nemont | — |
| 66.113.36.0/24 | WHOIS (ARIN) | Nemont Telephone | US |
| 66.113.37.0/24 | WHOIS (ARIN) | 3 Rivers Telephone Cooperative, Inc. | US |
| 66.113.38.0/24 | BGP route | AS19605 3 Rivers Telephone Cooperative, Inc. | — |
| 66.113.38.0/24 | WHOIS (ARIN) | 3 Rivers Telephone Cooperative, Inc. | US |
| 66.113.39.0/24 | BGP route | AS40933 Triangle Communications | — |
| 66.113.39.0/24 | WHOIS (ARIN) | Triangle Communications | US |
| 66.113.40.0/24 | BGP route | AS40933 Triangle Communications | — |
| 66.113.40.0/24 | WHOIS (ARIN) | Triangle Communications | US |
| 66.113.41.0/24 | BGP route | AS33339 Nemont | — |
| 66.113.41.0/24 | WHOIS (ARIN) | Nemont Telephone | US |
| 66.113.42.0/24 | WHOIS (ARIN) | Vision Net - Internal Customers | US |
| 66.113.43.0/24 | WHOIS (ARIN) | Southern Telephone | US |
| 66.113.44.0/24 | BGP route | AS40933 Triangle Communications | — |
| 66.113.44.0/24 | WHOIS (ARIN) | Triangle Communications | US |
| 66.113.45.0/24 | BGP route | AS1378 Interbel Telephone Cooperative, Inc. | — |
| 66.113.45.0/24 | WHOIS (ARIN) | Interbel Telephone Cooperative, Inc. | US |
| 66.113.46.0/24 | BGP route | AS33339 Nemont | — |
| 66.113.46.0/24 | WHOIS (ARIN) | Nemont Telephone | US |
| 66.113.47.0/24 | BGP route | AS33339 Nemont | — |
| 66.113.47.0/24 | WHOIS (ARIN) | Nemont Telephone | US |
| 66.113.56.0/24 | BGP route | AS33339 Nemont | — |
| 66.113.57.0/24 | BGP route | AS33339 Nemont | — |
| 66.113.58.0/24 | BGP route | AS33339 Nemont | — |
| 66.113.59.0/24 | BGP route | AS33339 Nemont | — |
| 66.113.60.0/24 | BGP route | AS40933 Triangle Communications | — |
| 66.113.61.0/24 | BGP route | AS40933 Triangle Communications | — |
| 66.113.62.0/24 | BGP route | AS33339 Nemont | — |
| 66.113.62.0/24 | WHOIS (ARIN) | Nemont Telephone | US |
| 66.113.63.0/24 | BGP route | AS402710 Northern Telephone Cooperative, Inc. | — |
| 66.113.63.0/24 | WHOIS (ARIN) | Northern Telephone Cooperative, Inc. | US |