| 137.0.0.0/8 | WHOIS (ARIN) | Various Registries (Maintained by ARIN) | US |
| 137.221.64.0/18 | WHOIS (RIPE_NCC) | Blizzard Entertainment, Inc | FR |
| 137.221.64.0/18 | RIPE_NCC assigned | — | US |
| 137.221.64.0/19 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.64.0/19 | WHOIS (RIPE_NCC) | BLIZZARD | NL |
| 137.221.96.0/19 | WHOIS (RIPE_NCC) | BLIZZARD | NL |
| 137.221.96.0/22 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.100.0/22 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.104.0/22 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.64.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.68.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.69.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.70.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.72.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.73.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.74.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.75.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.76.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.77.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.78.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.79.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.80.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.81.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.82.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.84.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.85.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.86.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.88.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.89.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.95.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.108.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.109.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.110.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.111.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |
| 137.221.112.0/24 | BGP route | AS57976 Blizzard Entertainment, Inc | — |