81.90.172.21 — AS5610 O2-CZECH-REPUBLIC
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Prefix 81.90.168.0/21
81.90.172.21
PTR
81-90-172-21.
ria.o2.cz
A record for
81-90-172-21.
ria.o2.cz
A
81.90.172.21
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81.90.168.0/21
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