E.164
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... relatively recent (since ~1995).
E.164 numbers can be non-geographic and geographic numbers. Non-
geographic numbers do not reveal the location information of those
numbers. Geographic E.164 ...
... E.164 numbers can be non-geographic and geographic numbers. Non-
geographic numbers do not reveal the location information of those
numbers. Geographic E.164 numbers were intentionally designed as
hierarchical routing addresses ...
... management, and other functions.
NP changes the fundamental nature of a dialed E.164 number from a
hierarchical physical routing ...
... make NP transparent to subscribers by incorporating a translation
function to map a dialed, potentially ported E.164 address, into a
network ...
... routing address (either a number prefix or another E.164
address) which can be hierarchically routed.
...
... NP bifurcates the historical role of a subscriber's E.164 address
into two or more data elements ...
... need to be able to perform n-digit global title translation (GTT) to
translate a dialed E.164 address into its network address ...
... This document describes three types of number portability and the
four schemes that have been standardized to support SPNP for
geographic E.164 numbers specifically. Following that, specific
information regarding the call routing and database ...
... just TN) in the GSTN, there are correspondingly several types of
E.164 NP in the GSTN. First there are so-called non-geographic E.164
...
... E.164 NP in the GSTN. First there are so-called non-geographic E.164
numbers, commonly used for service-specific applications such as
...
... NPA+NXX" code.
Similarly, in other national E.164 numbering plans, number ranges
cover a contiguous range of numbers ...
... NP Implementations for Geographic E.164 Numbers ...
... services and/or Internet
resources associated with a particular E.164 number. [ENUMPO]
outlines the principles for the operation of a telephone number ...
... environment; therefore, they may not be the proper entities to have
the authority for a given E.164 number. Not only that, there is a
regulatory requirement on NP in some countries that the donor network ...
... DNS process. The delegated authority for a given E.164 number is
likely to be an entity designated by the end user that owns/controls
...
... IP-based networks also may need to support some forms of number
portability in the future if E.164 numbers are assigned to the IP-
based end users. One method ...
... particular dialed directory number. Many other types of networks use
E.164 numbers to identify the end users or terminals in those
networks ...
... ITU-T Recommendation E.164, "The International Public Telecommunications Numbering Plan," 1997. ...