<story><title>I made 50k calls to explore the telephone network</title><url>https://shufflingbytes.com/posts/wardialing-finnish-freephones/</url></story><parent_chain><item><author>geoduck14</author><text>Oh hey! I have experience with this! I used to analyze data for a call center. We had a law that prevented us from calling people at night.&lt;p&gt;This is hard because of the following reasons:
Zip codes and time zones don&amp;#x27;t align well (looking at you, West Florida!)&lt;p&gt;Area codes and zip codes don&amp;#x27;t align well&lt;p&gt;Area codes and time zones don&amp;#x27;t align well&lt;p&gt;People move!</text></item><item><author>therealcamino</author><text>The author says that lots of measures were taken not to wake people up in the middle of the night, but that despite those efforts 3 people were. Wouldn&amp;#x27;t the most obvious method have been not to dial numbers at night local time?</text></item></parent_chain><comment><author>irrational</author><text>People move is a big one. Since smartphones became popular, I’ve noticed that people tend to keep the same phone number from where they got their first phone number. So I will receive calls from all over the place, except they really are all local calls from people that now live in my town. So when I see that a call is from Wisconsin, that is meaningless since it could be from someone living down the street.</text></comment>
<story><title>I made 50k calls to explore the telephone network</title><url>https://shufflingbytes.com/posts/wardialing-finnish-freephones/</url></story><parent_chain><item><author>geoduck14</author><text>Oh hey! I have experience with this! I used to analyze data for a call center. We had a law that prevented us from calling people at night.&lt;p&gt;This is hard because of the following reasons:
Zip codes and time zones don&amp;#x27;t align well (looking at you, West Florida!)&lt;p&gt;Area codes and zip codes don&amp;#x27;t align well&lt;p&gt;Area codes and time zones don&amp;#x27;t align well&lt;p&gt;People move!</text></item><item><author>therealcamino</author><text>The author says that lots of measures were taken not to wake people up in the middle of the night, but that despite those efforts 3 people were. Wouldn&amp;#x27;t the most obvious method have been not to dial numbers at night local time?</text></item></parent_chain><comment><author>nonameiguess</author><text>Area codes mean little in the mobile phone era. Just tells you where a person lived when they were a teenager or otherwise first got their own phone.</text></comment>