IPLIST.NET - 20.221.171.50.in-addr.arpa
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20.221.171.50.in-addr.arpa checked at 2025-10-16T23:33:12.343Z 101ms 12/12/12 100% R:920.221.171.50.in-addr.arpa
| PTR | c-50-171-221-20.unallocated.comcastbusiness.net | ||||||
221.171.50.in-addr.arpa
| NS | dns101.comcast.net | ||||||
| NS | dns102.comcast.net | ||||||
| NS | dns103.comcast.net | ||||||
| NS | dns104.comcast.net | ||||||
| NS | dns105.comcast.net | ||||||
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