Re:Experts consider consequences of ‘leap second’ elimination
by caf on Thursday September 19, 2013 @08:47PM
(#6415318)
.arpa is used for reverse DNS lookups. The PTR record for the IPv4 address 1.2.3.4 is looked up at 4.3.2.1.in-addr.arpa.
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Re:Experts consider consequences of ‘leap second’ elimination
by brokenparser on Friday September 20, 2013 @12:42AM
(#6415968)
And for enum lookups, e.g. +1-555-5678 becomes 8.7.6.5.5.5.5.1.e164.arpa.