I think I have the answer. I got this message from whitepages.com a while back: ---------- Forwarded message ---------- From: Bruce Haedt <proinfo@whitepages.com> Date: Thu, Dec 5, 2013 at 8:00 AM Subject: Changes to WhitePages API 1.0 from Mashery - Deprecated on January 16, 2014 I’d like to thank you for using WhitePages API 1.0 from Mashery. With the recent launch of our newest API 2.0 for WhitePages PRO, we are letting you know that as of January 16, 2014 we will be shutting down the current 1.0 API. I encourage you to transition to the new API. Our new API now identifies millions more addresses and people that correspond with mobile phone numbers – providing increased intelligence about a person’s location information beyond what was available previously, helping businesses to better validate customers’ identities. If you'd like additional query volume please feel free to reach out to me or pro-sales@whitepages.com. Sincerely, Bruce ---------- End Forwarded message ---------- It seems that mod_cidlookup 1.4.9 is still using the WhitePages API 1.0. I believe this API was working later than Jan 16, (it was working for us as late as June 16) but it doesn't work now. I checked into upgrading to the WhitePages API 2.0, but here's the catch: Instead of their free account being rate-limited, as it was in their API 1.0, it is now limited to 200 queries, after which your trial is over and you have to upgrade to a paid account. I'm going to politely ask them for another pricing option to compete with opencnam.com. -- Steve