ARIN

> Maintaining the relevant parts of the in-addr.arpa zone is a highly
> desirable (I am strongly tempted to say "necessary") part of an IP
> registry's work, whereas having the bandwidth and computrons to answer
> the world's DNS lookups can easily be farmed out to nameservers
> elsewhere.

Indeed.  Unfortunately, in the increasingly cra$$ new internet, it is
advisable to budget the contingency that one may have to pay for that
service.

randy