Skip to: Content | Footer | Accessibility
Click for RSS Feed of PUC Website     |    Resizing Fonts

Filing a Language Access Complaint
Welcome to the California Public Utilities Commission
Public Utilities Commission 505 Van Ness Avenue San Francisco, CA 94102

Broadband Mapping

Skip Navigation LinksPUC > Communications > Service Provider Programs and Information > Broadband Mapping > State Broadband Mapping Program

State Broadband Mapping Program Data Submission


At the end of 2014, the National Telecommunications and Information Administration (NTIA) State Broadband Initiative program concluded.  In order to continue using broadband availability data to determine areas eligible for broadband grants, the FCC has amended Form 477 to include broadband availability data.  Visit the FCC Form 477 website for more information.

The CPUC will continue to collect broadband availability data from providers in an effort to keep the  California Interactive Broadband Map current, and to use as a resource for state grant programs such as the California Advanced Services Fund (CASF).

To streamline this data collection, we ask California broadband providers to submit a copy of their FCC 477 data to us by April 1st of each year.  Data Requests will be sent on or about March 1st of each year, outlining any instructions or changes in our data collection process.  Please note:  for this year, we have extended the deadline to May 1.

Please use the CPUC instructions and file formats on this website for your data submission as some file formats may differ from FCC 477 file formats.


Data current as of ...

CPUC Deadline for Submission


December 31, 2014

May 1, 2015 (April 1 for video franchise holders under DIVCA)

Who should submit data?

  • facilities-based providers only (Not pure resellers)
  • providers with broadband speeds > 768/200 Kbps
  • must be able to provision new requests for broadband services within 10 days of a request


Where and How to submit the data?

  • via email (3 MB or less only):
  • via ftp:  send us an email and we will provide you with a secure FTP link
  • via CD/DVD:  California Public Utilities Commission
                        State Broadband Mapping Program
                        505 Van Ness Avenue, 3rd Floor
                        San Francisco, CA  94102

Please feel free to send any questions regarding this Data Request or your submissions to:

Last Modified: 5/26/2015

Visit the CalPhoneInfo website!