On Wed, Sep 8, 2010 at 7:52 PM, Alex Balashov <abalashov at evaristesys.com>wrote:
1) NANPA assigned blocks list (available free, publicly).
2) National Pooling assigned blocks list (available free, publicly).
If it's useful to folks, we've got an easy, free way to access that data via HTTP API, HTTP for a browser, and DNS API: http://digits.cloudvox.com/ Like: http://digits.cloudvox.com/2066831234 http://digits.cloudvox.com/2066831234.json It has data for 3, 6, 7, and 10 digit numbers/prefixes, and augments the data with other fields: lat/lng, wireless/wireline access type (guess), ratecenter formatted for display, and nearby metro ratecenter (ie, city). The site has API examples, a Google Spreadsheets custom function that inlines the JSON, and a bookmarklet. If you have special requests, send it via the contact info on the site. We're usually able to add things if it will let someone use it in a new way. Troy