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| The PTR records for all IP addresses in 97.74.110.0/24 |
| ip dnsbl srv tr 97.74.110.50 PTR | pdns01.domaincontrol.com. |
| ip dnsbl srv tr 97.74.110.52 PTR | pdns05.domaincontrol.com. |
| ip dnsbl srv tr 97.74.110.54 PTR | pdns09.domaincontrol.com. |
| ip dnsbl srv tr 97.74.110.56 PTR | pdns13.domaincontrol.com. |
| 4 out of 256 IP addresses in 97.74.110.0/24 appear to have a PTR. |
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