| US 7,574,437 B1 | ||
| Method for identifying new or recently changed telephone service | ||
| Xiaodan Guo, Lake Hopatcong, N.J. (US); Robert C. Hain, Berkeley Heights, N.J. (US); Ronald Mueller, Neshanic Station, N.J. (US); William J. Infosino, Watchung, N.J. (US); and John G. Ramage, Westfield, N.J. (US) | ||
| Assigned to AT&T Corp., New York, N.Y. (US) | ||
| Filed on Sep. 30, 2005, as Appl. No. 11/240,293. | ||
| Int. Cl. G06F 1/00 (2006.01); G06F 17/30 (2006.01) | ||
| U.S. Cl. 707—7 [707/3; 707/6; 707/10] | 10 Claims |
| 1. A method for identifying new or recently changed telephone service comprising the steps of:
categorizing a telephone number that is obtained by a communication network as a known telephone number or an unknown telephone
number;
analyzing the unknown telephone number for evidence of disconnection from the communications network by checking the unknown
number against the communications network company records;
c. looking-up the unknown telephone number from a current directory service to obtain a name and address that matches the
unknown telephone number;
d. comparing the name and address to information in at least one historical data source; and
e. identifying the unknown telephone number as a new customer or recently changed telephone service customer when the unknown
telephone number differs from the information in the at least one historical data source, or identifying the unknown telephone
number as an old customer when the unknown telephone number is the same as the information in the at least one historical
data source.
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