| 42.0.0.0/8 | WHOIS (APNIC) | Asia Pacific Network Information Center, Pty. Ltd. | AU |
| 42.1.64.0/18 | WHOIS (APNIC) | Mobifone Corporation | VN |
| 42.1.64.0/18 | APNIC assigned | — | VN |
| 42.1.96.0/21 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.84.0/22 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.88.0/22 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.100.0/22 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.104.0/22 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.64.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.66.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.68.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.70.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.72.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.74.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.76.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.78.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.80.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.84.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.86.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.88.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.90.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.94.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.98.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.100.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.102.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.104.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.106.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.126.0/23 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.64.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.65.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.68.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.69.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.70.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.71.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.72.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.73.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.74.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.75.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.76.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.77.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.78.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.79.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.80.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.81.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.82.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.84.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.85.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.86.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.87.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.88.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.89.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.90.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |
| 42.1.91.0/24 | BGP route | AS131429 MOBIFONE Corporation | — |