Data infrastructure / open access
Public data catalog
Download the records behind the research, including market shares, concentration measures, official events, and source references. Coverage and missing values are documented for each dataset.
Source records move through market definitions, concentration calculations, confidence labels, and public data endpoints — 45 source records, 12 market profiles, 235808 record rows plus a 1 row summary endpoint across 62 API endpoints.
Record rows
235,808
Sources
45
Endpoints
62
Aug 15, 2026
Latest source review
62
Dataset families
4
Source types
Market-definition atlas
What market is this metric measuring?
Inspect each product boundary, geography, denominator, proxy choice, and permitted comparison use before treating concentration values as economic evidence.
Selected definition contract
U.S. mobile wireless service
Product boundary
Commercial mobile wireless service represented in FCC competition reporting
Geographic boundary
FCC economic areas summarized as a weighted national concentration measure
Measurement basis
FCC source-reported HHI by economic area
Denominator
The service and provider universe used in the FCC mobile wireless concentration screen
Included
Provider concentration captured by the FCC-reported economic-area HHI
Excluded
A national carrier-share table is not reconstructed from the reported HHI
Method and limitations
Use the FCC source-reported weighted average HHI and preserve the economic-area basis.
The published national signal is an aggregate of geographic market screens rather than an HHI computed from a public national carrier-share table.
Boundary source
2024 Communications Marketplace Report
Federal Communications Commission · accessed 2026-05-16
Open data needs public interpretation.
The API is a starting point, not a legal conclusion. Pair downloads with methodology notes, source records, and the data-gaps report when citing market concentration.