Enter host name or IP address: 2 result(s) for 191.56.in-addr.arpa
namequery typeresultfirst seenlast seen
191.56.in-addr.arpa. NSdns082.usps.com.
2023-04-13 03:59:412023-04-13 03:59:41
191.56.in-addr.arpa. NSdns141.usps.com.
2023-04-13 03:59:412023-04-13 03:59:41

WHOIS info for: 191.56.in-addr.arpa

No whois server is known for this kind of object.