Archived NANC Documents

Charge Letters

Archives

Call Authentical Trust Anchor (CATA) Working Group

STIR/SHAKEN, Caller Authentication, Robocalling Policies Outside the U.S.
Referral Letter (June 15, 2021)

Call Authentication Best Practices
Referral Letter (Feb. 27, 2020)
 

Numbering Administration Oversight (NAOWG) Working Group

Statement of Work and Billing and Collection Agent Requirements
Referral Letter (March 25, 2022)

Individual Telephone Numbers (ITN) Pooling Trials
Referral Letter (Feb. 9, 2022)

Extension Letter (July 1, 2022)

Referral Letter (Sept. 13, 2022)
 

Nationwide Number Portability (NNP) Working Group

Internet Protocol Local Routing Number Solutions
Referral Letter (Dec. 16, 2019)

Toll Free Number Modernization Issues (TFAM) Working Group

Unassigned Toll Free Numbers Auction
Referral Letter (Dec. 16, 2019)