{"license":"https://creativecommons.org/licenses/by/4.0/","dataset":"atlas","updatedThrough":"2026-08-15","guardrail":"The atlas exposes only relationships declared in the current public data. A link or issue grouping does not make unlike measures comparable, establish ownership or control, define an antitrust market, assign liability, or show that a policy event caused an economic outcome.","filters":{"depth":1,"edgeType":"all","edgeTypeMatched":true,"focus":"report:insight-fixed-broadband-scale-divergence","focusMatched":true,"kind":"all","kindMatched":true,"layer":"all","layerMatched":true,"query":"","view":"network"},"summary":{"nodeCount":5478,"edgeCount":19193,"sourceCount":45,"profileCount":5433,"nodeKindCount":13,"layerCount":4,"eligibleEdgeCount":19193,"matchedNodeCount":3,"plottedEdgeCount":2,"plottedNodeCount":3,"hiddenNodeCount":0,"directNeighborCount":2},"focusNode":{"id":"report:insight-fixed-broadband-scale-divergence","kind":"report","label":"National fixed-broadband HHI rose while three geographic medians fell.","shortLabel":"Broadband scales","description":"One FCC release provides a useful scale comparison, but the national value and medians of area-level HHIs remain different summary statistics. The state, county, and tract rows are medians of separate area HHIs, not components that average to the national HHI. Reporting geographies are screening units, not presumed legal broadband markets.","href":"/insights/fixed-broadband-scale-divergence-2024","metricLabel":"Exact signals","metricValue":"4","detail":"AR-CI-2026-05 / Focused note","status":"current insight","year":2026,"color":"#6366f1","searchText":"national fixed-broadband hhi rose while three geographic medians fell. broadband scales one fcc release provides a useful scale comparison, but the national value and medians of area-level hhis remain different summary statistics. broadband geographies focused note ar-ci-2026-05 the national connection-share summary moved higher. united states moved from hhi 1,195 in dec 2023 to 1,501 in dec 2024 (+306 hhi points). all three published area medians moved lower. median state moved from hhi 2,994 in dec 2023 to 2,937 in dec 2024 (-57 hhi points). median county moved from hhi 5,356 in dec 2023 to 4,599 in dec 2024 (-757 hhi points). median census tract moved from hhi 5,859 in dec 2023 to 5,504 in dec 2024 (-355 hhi points). the apparent divergence is a research question, not a contradiction. national concentration and the median of local concentration distributions can move differently when provider shares, coverage, entry, technology, or the distribution of area-level values changes. the release does not by itself identify which mechanism dominates. median census tract residential fixed broadband tract median median county residential fixed broadband county median median state residential fixed broadband state median u.s. fixed broadband connections residential fixed broadband national hhi","connectionCount":2},"nodes":[{"id":"report:insight-fixed-broadband-scale-divergence","kind":"report","label":"National fixed-broadband HHI rose while three geographic medians fell.","shortLabel":"Broadband scales","description":"One FCC release provides a useful scale comparison, but the national value and medians of area-level HHIs remain different summary statistics. The state, county, and tract rows are medians of separate area HHIs, not components that average to the national HHI. Reporting geographies are screening units, not presumed legal broadband markets.","href":"/insights/fixed-broadband-scale-divergence-2024","metricLabel":"Exact signals","metricValue":"4","detail":"AR-CI-2026-05 / Focused note","status":"current insight","year":2026,"color":"#6366f1","searchText":"national fixed-broadband hhi rose while three geographic medians fell. broadband scales one fcc release provides a useful scale comparison, but the national value and medians of area-level hhis remain different summary statistics. broadband geographies focused note ar-ci-2026-05 the national connection-share summary moved higher. united states moved from hhi 1,195 in dec 2023 to 1,501 in dec 2024 (+306 hhi points). all three published area medians moved lower. median state moved from hhi 2,994 in dec 2023 to 2,937 in dec 2024 (-57 hhi points). median county moved from hhi 5,356 in dec 2023 to 4,599 in dec 2024 (-757 hhi points). median census tract moved from hhi 5,859 in dec 2023 to 5,504 in dec 2024 (-355 hhi points). the apparent divergence is a research question, not a contradiction. national concentration and the median of local concentration distributions can move differently when provider shares, coverage, entry, technology, or the distribution of area-level values changes. the release does not by itself identify which mechanism dominates. median census tract residential fixed broadband tract median median county residential fixed broadband county median median state residential fixed broadband state median u.s. fixed broadband connections residential fixed broadband national hhi","connectionCount":2,"distance":0,"labelVisible":true,"radius":20,"x":450,"y":260},{"id":"topic:geographic-competition","kind":"topic","label":"Geographic Competition","shortLabel":"Geographic Competition","description":"How does competitive structure vary across national, state, county, tract, route, and other local frames?","href":"/research/topics/geographic-competition","metricLabel":"Publication memberships","metricValue":"7","detail":"AR-T04 / 4 issue programs / 5 evidence lanes","status":"institutional research topic","year":2026,"color":"#ea580c","searchText":"ar-t04 geographic competition places how does competitive structure vary across national, state, county, tract, route, and other local frames? connect place-based concentration screens to their exact geography, source vintage, ownership rules, and local-market research needs. a statewide, county, tract, or national screen does not establish a legal geographic market. medians of local hhis are not interchangeable with one national hhi. area-level shares and distributions, ownership and entry histories, local prices and quality, commuting or procurement patterns, capacity, switching, and stable geographic definitions. local officials, researchers, journalists, and community advocates ar-sc-2026-01 the u.s. competition landscape ar-dn-2026-02 housing competition needs local ownership data ar-rb-2026-03 state banking structure, 2015-2025 ar-rb-2026-06 fixed broadband concentration across geographic scales, 2020-2024 ar-rb-2026-07 state individual insurance concentration, 2024 ar-ci-2026-04 geographic concentration screens point in different directions at different scales. ar-ci-2026-05 national fixed-broadband hhi rose while three geographic medians fell.","connectionCount":17,"x":450,"y":112,"distance":1,"radius":11,"labelVisible":true},{"id":"source:fcc-internet-access-dec-2024","kind":"source","label":"Internet Access Services: Status as of December 31 2024","shortLabel":"Federal Communication...","description":"FCC statistical report publishing national and median state county and census-tract HHI for residential fixed connections of at least 100 Mbps downstream and 20 Mbps upstream from December 2020 through December 2024.","href":"/sources/fcc-internet-access-dec-2024","metricLabel":"Access date","metricValue":"2026-07-21","detail":"Federal Communications Commission","status":"agency report","year":2026,"color":"#64748b","searchText":"fcc-internet-access-dec-2024 internet access services: status as of december 31 2024 federal communications commission fcc statistical report publishing national and median state county and census-tract hhi for residential fixed connections of at least 100 mbps downstream and 20 mbps upstream from december 2020 through december 2024. federal communications commission, internet access services: status as of december 31, 2024, figure 5, published 2026. agency_report","connectionCount":7,"x":450,"y":408,"distance":1,"radius":11,"labelVisible":true}],"rows":[{"id":"report-source:insight-fixed-broadband-scale-divergence:fcc-internet-access-dec-2024","layer":"research","relationshipType":"report_source","relationshipLabel":"Declared publication source","fromId":"report:insight-fixed-broadband-scale-divergence","fromKind":"report","fromLabel":"National fixed-broadband HHI rose while three geographic medians fell.","fromHref":"/insights/fixed-broadband-scale-divergence-2024","toId":"source:fcc-internet-access-dec-2024","toKind":"source","toLabel":"Internet Access Services: Status as of December 31 2024","toHref":"/sources/fcc-internet-access-dec-2024","evidenceLabel":"Federal Communications Commission","evidenceDetail":"Internet Access Services: Status as of December 31 2024 appears in the source-custodied signal packet for AR-CI-2026-05.","sourceId":"fcc-internet-access-dec-2024","sourceUrl":"https://docs.fcc.gov/public/attachments/DOC-418459A1.pdf","confidenceLevel":"bounded","indicatorId":null,"entityCode":null,"observationCount":null,"firstYear":null,"latestYear":null,"preferredView":null,"sourceIds":null,"guardrail":"A source edge records the public evidence basis declared by the publication and does not erase the source's limitations."},{"id":"topic-publication:geographic-competition:AR-CI-2026-05","layer":"research","relationshipType":"topic_publication","relationshipLabel":"Declared topic membership","fromId":"topic:geographic-competition","fromKind":"topic","fromLabel":"Geographic Competition","fromHref":"/research/topics/geographic-competition","toId":"report:insight-fixed-broadband-scale-divergence","toKind":"report","toLabel":"National fixed-broadband HHI rose while three geographic medians fell.","toHref":"/insights/fixed-broadband-scale-divergence-2024","evidenceLabel":"Publication theme contract","evidenceDetail":"AR-CI-2026-05, National fixed-broadband HHI rose while three geographic medians fell., carries the exact Geographic Competition publication-theme membership.","sourceId":null,"sourceUrl":null,"confidenceLevel":"bounded","indicatorId":null,"entityCode":null,"observationCount":null,"firstYear":null,"latestYear":null,"preferredView":null,"sourceIds":null,"guardrail":"A topic-to-publication link records one exact editorial theme membership. It does not rank publication quality, evidence strength, importance, impact, or policy effect."}]}