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Network Delegation
137.52.in-addr.arpa.
136.52.in-addr.arpa.
141.52.in-addr.arpa.
135.52.in-addr.arpa.
138.52.in-addr.arpa.
139.52.in-addr.arpa.
142.52.in-addr.arpa.
134.52.in-addr.arpa.
143.52.in-addr.arpa.
133.52.in-addr.arpa.
140.52.in-addr.arpa.
132.52.in-addr.arpa.
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