config error or just slightly broken servers?

[Carl Byington]

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client 144.160.112.12#60196: view normal: query (cache)
  '192.60.147.205.in-addr.arpa/PTR/IN' denied
client 144.160.128.139#47522: view normal: query (cache)
  '192.60.147.205.in-addr.arpa/PTR/IN' denied

The above was logged on ns1 == 205.147.60.192 running 9.5.1b1

BTW, thanks to everyone that made that possible!

The question is, why are att/sbc dns servers asking 205.147.60.192 for
that PTR record? I believe they should ask one of:

;; ANSWER SECTION:
60.147.205.in-addr.arpa. 7200   IN NS la-dns3.digilink.net.
60.147.205.in-addr.arpa. 7200   IN NS la-dns1.digilink.net.
60.147.205.in-addr.arpa. 7200   IN NS la-dns2.digilink.net.

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