Technical Notes
General
The information presented in this report is based on data from FCC Form 477. Through Form 477,
facilities-based broadband providers submit information to the FCC about where they offer and have
subscribers to Internet access services over 200 kilobits per second (kbps) in at least one direction. In
June 2013, the Commission adopted several changes to Form 477.
Detailed information about those
changes and about the Form 477 reporting requirements in general is available at www.fcc.gov/form477.
Due to technical difficulties in 2014 with the redesigned Form 477 filing interface, the filing deadline for
Form 477 data as of June 30, 2014 was moved to December 11, 2014. Because of that delay, the
Commission staff were not able to perform their typical process of identifying anomalies or errors in the
data, following up with filers, and requesting updates to the data where appropriate – a process which
usually generates a significant number of corrections and hence a more accurate Form 477 data set.
Form 477 collects information about Internet access connections in service to end-user locations that are
advertised to deliver information to and/or from the end user – that is, in at least one direction – at transfer
rates (speeds) above 200 kilobits per second (kbps). Information is collected about the number of
connections by the advertised speeds associated with each product subscribed to in the relevant
geographic area, census tracts for fixed and states for mobile. Fixed providers report connections by the
maximum advertised upload and download speeds, while mobile providers report connections by
minimum advertised upload and download speeds. Fixed connections are further categorized by the
technology employed by the part of the connection that terminates at the end-user location. Wherever a
number of providers is cited in this report, multiple Form 477 filers within a holding company structure
count as one provider.
“End users” are residential, business, institutional, or government entities who use services for their own
purposes and who do not resell such services to other entities. Facilities-based providers report
information about connections they provide directly to their own end-user customers and also connections
that they provide to Internet Service Providers for resale to end users. For Form 477 purposes, the
facilities-based provider of a connection is the entity that owns the portion of the physical facility that
terminates at the end-user location, obtains an unbundled network element (UNE), special access line, or
other leased facility that terminates at the end-user location and provisions/equips it as a connection that
transfers information at rates over 200 kbps in at least one direction, or provisions/equips a wireless
channel that transfers information at rates over 200 kbps in at least one direction to the end-user location
over licensed spectrum or over spectrum that the provider uses on an unlicensed basis.
The mutually exclusive Form 477 technology categories are: asymmetric Digital Subscriber Line (aDSL
in this report), symmetric Digital Subscriber Line (sDSL), other copper wireline, cable modem, optical
carrier / fiber to the end user, satellite, terrestrial fixed wireless (using licensed or unlicensed spectrum),
mobile wireless, and all other (which is included to capture deployment of additional technologies over
time). In the Form 477 data collection, aDSL-based services delivered over fiber-to-the-node architecture
are reported in the aDSL category. The other wireline category comprises T1/DS1, T3/DS3, and other
Modernizing the FCC Form 477 Data Program, WC Docket No. 11-10, Report and Order, 28 FCC Rcd 9887
(2013). See also High-Speed Services for Internet Access: Status as of December 31, 2014 (March 2016) at 1-2,
available at https://www.fcc.gov/reports-research/reports/internet-access-services-reports/internet-access-services-
reports.