I'm curious to know whether this situation is common or unusual. 703-957-1xxx and 703-957-2xxx are listed with US LEC as the carrier. US LEC was bought by PAETEC, which was then bought by Windstream. I've had a voip.ms DID in this batch since 2012, no problem. At the time I obtained the DID, I did not know how to look up the LRN, nor did I have much reason to, other than to learn how telecom works.
Eventually I discovered that the DID's actual CLEC is Level 3 Communications, at a different wire center than that used by US LEC/Windstream. The LRN is 3017106199. Later I used https://whocalld.com and it even gave a date for the port to Level 3: 8/2/2013. The CNAM is "Sterling VA", which is neither the rate center (Arcola) nor the location of the wire center (McLean), but it's in the same region.
I recently checked available DIDs at voip.ms and found they have plenty in this batch. So I tested a few, and found they're like mine: Level 3, etc. So my question is, what's the arrangement? The service provider acquires DIDs from their supplier, then ports them all to a different CLEC, either for business reasons or (less likely?) some technical reason. (And in this case, the port occurred a year after I acquired the DID.) I'm just wondering whether this is common practice or not.
And how do they come up with that CNAM?
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