I'm concerned that the power of DNS is not being applied to the needs of ENUM,
and that whereas I will want 3.1.3.2.4.0.5.6.1.e164.arpa to be delegated to
me with some NS RRs so that I can control my per-number SRV/NAPTR/whatever by
editing local zone files and hitting the "reload" button on my name server,
the people who control 1.e164.arpa (or 0.5.6.1.e164.arpa or whatever) will
want me to register each of my SRV/NAPTR/whatever RRs with them. If you're
correct that this is how e164.org works, then that pretty much answers my
previous question ("why isn't e164.org taking the world by storm?")