Telephone number use analysis for groups of telephone numbers

A system comprising:

• a network device including a memory to store a database including a plurality of records, wherein each record in the database stores an area code, a maximum length for a telephone number (TN) corresponding to the area code, and a minimum length for the TN corresponding to the area code;
• and
• one or more processors to validate a length of a received TN against information stored in the database.

A computer-implemented method comprising:

• executing a first thread to update a record in a first database and to store information in the first database indicating the first database was updated, wherein the first database includes a plurality of records, each record in the first database storing a telephone number (TN) and a status of the corresponding TN;
• and
• executing a second thread, different from the first thread, to generate a second database from the first database in response to the stored information indicating that the one of the records in the first database was updated, wherein the second database stores a plurality of records, wherein each record in the second database indicates a range of consecutive TNs from the first database having a same status.