MARK R. WARN~R 
VIRGINIA 
The Hon. Tom Whee ler 
tinitfd ~tatcs ~cnatc 
WASHINGTON, DC 20510-4606 
September 24, 20 14 
Federa l Communications Commission 
445 12th Street, S.W. 
Washington, DC 20554 
Dear Chairman Wheeler: 
COMMITTEESˇ 
FINANCE 
BANKING, HOUSING, AND 
URBAN AFFAIRS 
BUDGET 
INTELLIGENCE 
RULES AND ADMINISTRATION 
SSCI # 2014-2856 
Jam writing regarding the FCC's upcoming selection of the Administrator for the Local 
Number Portability Administration (LPN A). My intention is not to sway the FCC's decision one way 
or another, but to urge you , as you make this important decision , to take into account the national 
security implications ofthis selection. 
The LPNA 's database is used to enable telephone company customers to retain their 
telephone number even if they switch carriers. [t also is an important tool for authorized law 
enforcement and national security investigations, since the database must often be queried by law 
enforcement agencies as an initial step in determining which te lephone company is associated with a 
particular telephone number. This is done so that any further investigative action or subpoena may be 
presented to the right company. 
As the FBI has indicated, " law enforcement agencies require that their queries of the system 
maintained by the LNPA remain confidentia l so that a potential criminal will not learn that law 
enforcement is investigating them, wh ich could result in an individual fleeing, destroying vital 
evidence of their criminal activity, or continuing to -compromise national security." If a criminal or 
foreign intelligence entity under investigation should learn that the FBI is making queries about its 
telephone number, an investigation could be compromised before it even begins. 
Given the large number of recent data breaches of U.S. commercial and government 
computers by malicious cyber actors, the security of the LPNA ' s database- including the abi lity to 
block potential cyber, insider, and other threats- is critica l. 
1 therefore urge you to ensure that the solicitation and selection process for the database 
admini strator, based upon which the FCC wi ll make its selection, fully consider the national security 
and law enforcement implications that should be required in maintaining a database that is so 
important and sens itive - regardless of who is ultimately selected. 
I look forward to your response. 
CC: FBI Director James B. Corney, Jr. 
Sincerely Yours, 
Mark R. Warner 
U. S. Senate 
http://warner.senate.gov 
PRINTED ON RECYC~ED PAPER 
1028