So there are some pretty big Tier 1 names in the DID/telecom world: Level3, Verizon, Bandwidth.com. Many resellers resell the DIDs they get from these bigger companies. The problem is that the Tier 1 company shows up as the "owner" of phone numbers that we get from our Tier 2 or even Tier 3 providers. That's all fine and good, but the problem is this: Me ------> Tier 2 provider --> Tier 1 provider / Not Me --> Tier 2 provider / When someone submits a request to port a number, and they port it to a different Tier 2 provider that gets its numbers from the same Tier 1 provider, I have no way, not even with an LNP dip, to find out that it was ported, that the owner had changed. I'm pretty sure Tier 1 providers don't have an API or any way that I might be able to find out that they moved a number from one of their direct customers to another. Am I wrong? So how do we deal with this? How do we find out, in a definitive and authoritative and programmatic manner, when a number we think is ours is ported away? Beckman --------------------------------------------------------------------------- Peter Beckman Internet Guy beckman at angryox.com http://www.angryox.com/ ---------------------------------------------------------------------------