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Provider-aggregatable address space
Provider-aggregatable
address space
is a
block
of
IP addresses
assigned by a
regional Internet registry
to an
Internet service provider
which can be
aggregated
into a single
route
advertisement
for improved
Internet routing
efficiency
.
Unlike
provider-independent address space
, the
end-user
of
address
blocks within a provider-supplied
space
cannot
reuse
the
addresses
if they
change
up-stream
connectivity
providers
.