Bell Atlantic Gives Carriers Link to Number Portability Database

Bell Atlantic Gives Carriers Link to Number Portability Database

Help in Finding Customers Among Myriad of Phone Companies

November 6, 1997

Media contacts:

Paul Miller


NEW YORK -- A new Bell Atlantic service, the first of its kind in the
U.S., will make finding phone customers decidedly easier for competing
telecommunications carriers.

Bell Atlantic's new service, known as Service Provider Number
Portability Database Service, lets other phone companies locate the
proper route to send calls to customers who switch local phone

This new technology is essential as long-term local number
portability (LNP) is introduced. LNP allows customers to keep their
phone numbers when they change companies without changing locations.

Last week, Bell Atlantic became the first telephone company in the
nation to introduce a long-term form of local number portability in
switching offices in Gaithersburg, Md., and part of Center City
Philadelphia. By the end of next year, the technology will be
available in all 23 major markets the company serves.

Bell Atlantic's long-term LNP system uses intelligent network systems
and a remote database. This database stores the "ported" phone
numbers of customers who have changed local phone companies, as well
as "location routing numbers," which are assigned to each competing
local telephone company's switch that handles calls.

Here's how it works:

When Customer A calls Customer B, who has switched local phone
companies, a signal checks the database, where it finds that Customer
B's phone number is now served by another local telephone company.
The call is routed via the appropriate location routing number to the
switching center of Customer B's phone company, and from there to
Customer B's phone.

The new Bell Atlantic - formed through the merger of Bell Atlantic and
NYNEX - is at the forefront of the new communications, information and
entertainment industry. With 40 million telephone access lines and
5.8 million wireless customers worldwide, Bell Atlantic companies are
premier providers of advanced wireline voice and data services, market
leaders in wireless services and the world's largest publishers of
directory information. Bell Atlantic companies are also among the
world's largest investors in high-growth global communications
markets, with operations and investments in 21 countries.