On Mon, 20 Sep 2010, Peter R. wrote:
How do you geo-map for cell-only households which has grown past 15% of the market now? In my own circle of non-telecom friends, very few have a landline and most have a cell phone with an area code outside Tampa.
Obviously if you have a NY cell phone and live in FL, it won't be accurate. That's impossible. But I _CAN_ show where that NY cell phone resides in the NANPA world, or at least a rough estimate. Sure, some ratecenters cover hundreds of miles, but for the most part you can get a good handle on where a number originates from. I don't care about where the device that rings when you call a number is located. Privacy issues abound there. I'm merely looking for a definitive source of Geo-telecom data for NANPA.
LATA boundaries really only affect ILEC's. CLEC's offer LATA wide and state-wide calling in some cases. VoIP isn't exactly rate center based EXCEPT with ported numbers.
What VoIP isn't rate center based? Sure, billing may not be, but that doesn't cause an npanxx not to be linked to a physical location. And some providers still do full npanxx based call decks. Sometimes you want to give the customer some insight into the call -- if you don't have a name, give an accurate location at least (more than a state). I know my provider, VoIPo, sends information like "Anytown OH Mobile" or similar when a name isn't available. That's useful! Beckman --------------------------------------------------------------------------- Peter Beckman Internet Guy beckman at angryox.com http://www.angryox.com/ ---------------------------------------------------------------------------