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              I had this happen to me recently.
              
              Customer came in with a number that had very little
              coverage, but our
              carrier had a 1,000 block in the same ratecenter, so we
              held out some hope.
              
              Once we dug into it, the 1,000 block was designated for a
              different
              "service offering" with the carrier. They were not
              offering portability in
              that Ratecenter, despite having coverage, or even hardware
              or leased
              hardware there.
              
              So we had to send the customer off. There really were only
              about 5 carriers
              serving the Ratecenter, 3 of them wireless, one very
              local, and our
              carrier.
              
              If your carrier decides not to port a number, even when
              they seem to be
              present in the ratecenter in question, they are not
              required by any law or
              rule to port, AFAIK.
              
              If a company will port in, the other carrier must (IMHO)
              port out. If not,
              then you can't port. There may be some subtleties to that,
              but this is my
              understanding.
              
              Fun!
              
              Beckman
              
              On Wed, 9 Jun 2021, Mike Hammett wrote:
              
              > I first asked on a list much more narrow in scope,
              but failing to get
              > sufficient data points, I've expanded my scope.
              >
              > Assuming the number isn't held by someone exempt from
              porting, what would
              > prevent someone from being able to port a number from
              a particular rate
              > center in a LATA they have coverage in?
              >
              > We picked up a particular carrier for our out-of-area
              needs and the first
              > thing we throw at them in a LATA we know they have
              coverage in, they
              > can't do. They have a non-useful reason why. It
              doesn't appear to have
              > moved to a state where they contacted the losing
              provider as the response
              > was very fast, so my provider rejected the port, not
              theirs.
              >
              > When I started at this company (where we do our own
              porting), I made sure
              > to port a bunch of numbers from all over our LATA to
              see what would
              > happen. All successful. That seems to indicate that
              it doesn't matter
              > which xLEC or tandem currently serves that number, it
              can move elsewhere.
              >
              >
              >
              > -----
              > Mike Hammett
              > Intelligent Computing Solutions
              > 
http://www.ics-il.com
              >
              > Midwest-IX
              > 
http://www.midwest-ix.com
              >
              >
              
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              Peter
              Beckman                                                 
              Internet Guy
              
beckman@angryox.com                                 
                http://www.angryox.com/
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