Comcast Corporation

What the FCC Data Tells Us About Comcast Corporation

Comcast Corporation appears in the FCC Form 477 broadband deployment dataset with 1,694,032 individual filings spread across 40 states and territories. That volume of filings points to a nationwide operator — each record represents a distinct census-block-and-technology combination the provider has reported serving, so the raw count reflects both geographic reach and the number of technology tiers the company deploys (for example, fiber and DSL in the same block count as two records).

Pennsylvania is the largest single market for Comcast Corporation with 176,756 deployment records on file, followed by Illinois at 165,762 records. Averaged across its footprint, the provider files roughly 42,351 records per state — a useful yardstick for comparing how deeply it has penetrated each territory versus competitors listed on the same state pages.

Keep in mind Form 477 counts filings, not subscribers or homes passed. A high record count means the provider has told the FCC it is capable of serving many census blocks; it does not guarantee active service at any specific street address, nor does it reflect actual subscriber numbers. Use this page alongside the state breakdown below to see where Comcast Corporation's reported footprint is densest, and cross-reference with the technology mix on each state page to understand what speeds and delivery methods are on file for each market.