A global location register having real-time location information about subscribers
for contacting the subscribers in real-time even when the subscribers are not co-located
with their customer premise equipment being called. In one embodiment, the global
location register includes subscriber location information and service scripts
for providing subscriber location estimates to be included in the subscriber location
information, wherein subscriber location information includes subscriber information
for identifying subscribers and current location information for indicating locations
at which subscribers are Likely to be reached in real-time. In an embodiment, the
current location information may indicate current access networks and/or current
destination addresses associated with the current location. The global location
register can be used to respond to queries regarding subscribers' current locations
or to route calls to subscribers in real-time.