IPLIST.NET - 21.166.220.205.in-addr.arpa
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21.166.220.205.in-addr.arpa checked at 2025-10-16T12:57:12.233Z 140ms 16/16/16 100% R:1221.166.220.205.in-addr.arpa
| PTR | mx0a-00645801.pphosted.com | ||||||
| A | 205.220.166.21🇺🇸 Proofpoint | ||||||
| PTR | mx0a-00645801.pphosted.com | ||||||
166.220.205.in-addr.arpa
| NS | pdns99.ultradns.biz | ||||||
| NS | ns1.proofpoint.com | ||||||
| NS | ns3.proofpoint.com | ||||||
| NS | pdns99.ultradns.com | ||||||
| NS | pdns99.ultradns.net | ||||||
| NS | pdns99.ultradns.org | ||||||
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