| 66.38.96.0/19 | Proxy Registered by IRIS Networks for North Central Telephon | 8.2K | US |
| 104.243.64.0/20 | Bluegrass Network LLC proxy/transit provider for North Centr | 4.1K | US |
| 147.92.16.0/20 | Advertise by proxy for NCTC | 4.1K | US |
| 160.79.16.0/20 | Bluegrass Network LLC proxy/transit provider for North Centr | 4.1K | US |
| 161.38.224.0/20 | Advertise by Proxy for North Central Telephone | 4.1K | US |
| 162.43.208.0/20 | Advertise Via Proxy for NCTC | 4.1K | US |
| 173.240.128.0/20 | Proxy Registered by IRIS Networks for North Central Telephon | 4.1K | US |
| 216.20.144.0/20 | Bluegrass Network transit/proxy provider for North Central T | 4.1K | US |
| 72.22.112.0/20 | Proxy Registered by IRIS Networks for North Central Telephon | 4.1K | US |
| 147.92.16.0/21 | Bluegrass Network LLC proxy/transit provider for North Centr | 2K | US |
| 147.92.24.0/21 | Bluegrass Network LLC proxy/transit provider for North Centr | 2K | US |
| 160.79.16.0/21 | NORTH-CENTRAL | 2K | US |
| 160.79.24.0/21 | NORTH-CENTRAL | 2K | US |
| 161.38.224.0/21 | NORTH-CENTRAL | 2K | US |
| 161.38.232.0/21 | NORTH-CENTRAL | 2K | US |
| 162.43.208.0/21 | NORTH-CENTRAL | 2K | US |
| 162.43.216.0/21 | NORTH-CENTRAL | 2K | US |
| 167.224.56.0/21 | NORTH CENTRAL TELEPHONE COOPERATIVE CORPORATION | 2K | US |
| 170.176.248.0/21 | Bluegrass Network LLC proxy/transit provider for North Centr | 2K | US |
| 208.76.160.0/21 | Proxy Registered by IRIS Networks for North Central Telephon | 2K | US |
| 216.20.144.0/21 | NORTH-CENTRAL | 2K | US |
| 216.20.152.0/21 | NORTH-CENTRAL | 2K | US |
| 72.22.112.0/21 | NORTH-CENTRAL | 2K | US |
| 72.22.120.0/21 | NORTH-CENTRAL | 2K | US |
| 74.123.40.0/21 | proxy add for NCTC | 2K | US |
| 162.217.212.0/22 | TLTC for NCTC registered by iRis Networks | 1K | US |
| 162.251.220.0/22 | Proxy registered for DTC Communications | 1K | US |
| 198.89.28.0/22 | North Central Telephone | 1K | US |
| 204.9.4.0/22 | NCTC | 1K | US |
| 66.38.40.0/22 | Proxy Registered by IRIS Networks for North Central Telephon | 1K | US |
| 74.123.40.0/22 | Bluegrass Network LLC proxy/transit provider for North Centr | 1K | US |
| 74.123.44.0/22 | Bluegrass Network LLC proxy/transit provider for North Centr | 1K | US |
| 74.50.40.0/22 | Proxy Registered by IRIS Networks for North Central Telephon | 1K | US |
| 147.160.136.0/23 | Proxy add for NCTC | 512 | US |
| 192.190.226.0/23 | North Central Telephone | 512 | US |
| 66.38.100.0/23 | Bluegrass Network LLC proxy/transit provider for North Centr | 512 | US |
| 66.38.102.0/23 | Bluegrass Network LLC proxy/transit provider for North Centr | 512 | US |
| 66.38.104.0/23 | Bluegrass Network LLC proxy/transit provider for North Centr | 512 | US |
| 66.38.106.0/23 | Bluegrass Network LLC proxy/transit provider for North Centr | 512 | US |
| 66.38.122.0/23 | Bluegrass Network LLC proxy/transit provider for North Centr | 512 | US |
| 66.38.4.0/23 | Bluegrass Network LLC | 512 | US |
| 66.38.96.0/23 | Bluegrass Network LLC proxy/transit provider for North Centr | 512 | US |
| 66.38.98.0/23 | Bluegrass Network LLC proxy/transit provider for North Centr | 512 | US |
| 147.160.136.0/24 | Bluegrass Network LLC proxy/transit provider for North Centr | 256 | US |
| 74.50.44.0/24 | Proxy Registered by IRIS Networks for North Central Telephon | 256 | US |