66.151.103.144 & 66.151.103.181

[hfactor]

Hi All,
While reviewing our web logs, I came across a set of unresolved IP addresses of 66.151.103.144 & 66.151.103.181. They seem to resolve to the following companies:

Internap Network Services PNAP-06-2001 (NET-66-150-0-0-1)
66.150.0.0 - 66.151.255.255
Internet Law Group INAP-WDC002-INTERNETLAW-3944 (NET-66-151-103-128-1)
66.151.103.128 - 66.151.103.255

Can anyone provide details on this? Should I be worried?

Thanks in advance,

[wilderness]

You'll find "more" than a few pests from this backbone.

RewriteCond %{REMOTE_ADDR} ^66\.15[01]\. [OR]