Fiber in Greene & Montgomery Counties: About 99% of Beavercreek and 88% of Kettering Have It, and the 2026 altafiber Build-Out Is Changing the Map

Fiber-optic internet is now the default option across most of Greene County and Montgomery County, but coverage is address-specific and the real retrofit gap is inside the house, not at the curb. In Beavercreek, Metronet reports fiber at roughly 99% of addresses; in Kettering, AT&T Fiber reaches about 88% to 99% of addresses; and in Xenia, the county-wide altafiber build is still landing neighborhood by neighborhood, with AT&T Fiber at roughly 17% of addresses. Because the FCC National Broadband Map and every provider's availability page can disagree at the address level, the first step of any smart-home retrofit is checking your exact address, and the second is planning the wiring inside the home.

The Miami Valley is in the middle of the largest fiber build in its history. In February 2022, Greene County commissioners approved a partnership with Cincinnati Bell, now altafiber, committing $9.6 million in county American Rescue Plan Act funds to pull roughly $55 million of private investment into a gigabit-capable fiber-to-the-premise network, about 5 million feet of fiber aimed at close to 40,000 addresses in Xenia, Cedarville, Jamestown, Bellbrook, Beavercreek, and Fairborn. On the Montgomery County side, altafiber announced a 10-gig build in February 2024 targeting roughly 27,000 addresses in Centerville, Washington Township, and Kettering, and by February 2026 the company reported passing 70,000 Dayton-region addresses across both counties as part of a roughly $200 million, 2,300-route-mile program. What all of that means for a buyer, a seller, or a homeowner planning a smart-home retrofit is the subject of this guide, verified against the sources listed at the bottom on October 22, 2026.

Which Fiber Providers Actually Serve Greene and Montgomery Counties?

Five providers dominate residential fiber in the two counties: Metronet, AT&T Fiber, altafiber, Spectrum, and Omni Fiber. The mix differs by city. Metronet is the dominant fiber provider in Beavercreek and Huber Heights, AT&T Fiber leads in Kettering, and altafiber is the county partner on Greene County's expansion and the mid-build network across Centerville, Washington Township, and Kettering. The numbers below come from address-level coverage trackers built on FCC Broadband Data Collection reporting and from the providers' own city pages, and the ranges reflect that different trackers pull different snapshots of a moving build.

City / county	Dominant fiber provider	Reported address share	Other fiber options	Source
Beavercreek (Greene)	Metronet	~99% of addresses (tracker); Metronet lists fiber live across downtown, midtown, west, north, and east sides	altafiber ~5 to 13%; Spectrum fiber widely available; AT&T Fiber in portions	BroadbandMap.com, bestneighborhood.org, Metronet, 2026
Kettering (Montgomery)	AT&T Fiber	~88% to 99% of addresses	altafiber ~68% (mid-build); Metronet ~6%; Spectrum mostly cable	bestneighborhood.org, BroadbandMap.com, AT&T, 2026
Centerville (Montgomery)	AT&T Fiber	~66% to 89% of addresses	altafiber ~23% (construction began 2025); Metronet ~8%; Point Broadband ~9%	bestneighborhood.org, BroadbandMap.com, altafiber, 2026
Huber Heights (Montgomery)	Metronet	~93% to 98% of addresses	AT&T Fiber ~79%; Spectrum fiber ~18%; altafiber DSL only in parts	bestneighborhood.org, BroadbandMap.com, ISPReports, 2026
Fairborn (Greene)	altafiber (county project)	~58% of homes (altafiber); Metronet ~10%	AT&T Fiber in portions	bestneighborhood.org, Greene County, 2026
Xenia (Greene)	altafiber (county project)	Build landing neighborhood by neighborhood; AT&T Fiber ~17%	County project covers eastern and southern Greene County	BroadbandNow, Greene County, 2026
Bellbrook, Cedarville, Jamestown (Greene)	altafiber	Covered by the county partnership project	Metronet fiber in Bellbrook	Greene County, 2026
Dayton (Montgomery)	Address-specific	Varies by neighborhood; AT&T Fiber, Metronet, and Spectrum available in many areas	Omni Fiber available in portions	Provider city pages, 2026

Reporting note: address-share figures are provider-reported or tracker estimates built on FCC Broadband Data Collection filings and were accessed October 2026. altafiber's build is ongoing, so any percentage will be higher by the month. Always confirm at the individual address.

How Do I Check Fiber Availability at My Exact Address?

The official starting point is the FCC National Broadband Map at broadbandmap.fcc.gov. Enter a street address and the map returns the providers that report service there, the technology type (fiber, cable, DSL, fixed wireless, satellite), and the advertised speeds. The map is built from provider filings to the FCC's Broadband Data Collection and is updated on a rolling basis, and if the data for your address looks wrong you can file a challenge through the same site. Greene County also publishes an availability map for its altafiber project, and every major provider, from AT&T and altafiber to Metronet and Omni Fiber, runs an address check on its own site.

In our work with buyers across Greene and Montgomery counties, the availability check comes first and the wiring plan comes second. A home can sit on a gigabit fiber line at the curb and still stream poorly in the far bedroom because the router is in a basement utility room and the walls are plaster and lath. Before an offer, we walk clients through the FCC map and, for an older house, budget for a mesh system or a structured ethernet drop, because the retrofit reality is that the fiber drop is maybe a third of the work. The interior network, the devices, and the power behind them are the rest.

What Does a Smart Home Retrofit Actually Require Beyond the Fiber Drop?

Fiber to the home is the fastest, lowest-latency connection you can buy, and it is the right backbone for a house full of smart devices, but the fiber terminal is only the beginning. A smart thermostat, video doorbell, security cameras, smart locks, garage controllers, and smart lighting all depend on reliable WiFi coverage, and coverage is where Ohio's housing stock pushes back. Mid-century ranches in Kettering and Beavercreek often have plaster walls, a single central utility room, and no structured ethernet; century homes and older suburbs add knob-and-tube-era walls where running cable is harder and where a WiFi signal struggles to cross the rooms. The practical retrofit order is: confirm fiber at the address, install the provider's gateway in a central location, add a mesh WiFi system or ethernet backhaul for whole-home coverage, then add devices and a smart panel or battery backup for the systems you depend on.

The speeds matter too. A gigabit fiber plan is about headroom: dozens of devices, multiple 4K streams, video calls, gaming, and uploads all at once. For most households 500 Mbps to 1 gigabit is plenty, and fiber's symmetrical uploads are the feature that matters for cameras and work-from-home video. Here is what current plans run in the Dayton area, with the caveat that nearly all of these are promotional rates for a set term, that equipment and taxes add on, and that prices reset after the term ends.

Provider	Plan	Promo price	Notes
AT&T Fiber	300 Mbps / 500 Mbps / 1 Gig	~$35 to $50 / ~$55 to $65 / ~$70 to $80 per month	Symmetrical, no data caps, no equipment fee, no annual contract; multi-gig tiers in some areas
altafiber (Fioptics)	400 Mbps / 600 Mbps / 1 Gig	~$40 / ~$50 to $55 / ~$80 per month, promos lower with eBill	2 and 3 gigabit tiers available; modem or router rental ~$11.99 per month
Metronet	500 Mbps / 1 Gig	~$60 / ~$70 per month with AutoPay; intro rates from ~$34.95 (150 Mbps) and ~$49.95 (1 Gig)	No data caps, no annual contract; first-month-free promos
Omni Fiber	500 Mbps / 1 Gig	~$65 / ~$85 per month with eBill and AutoPay discount	One-year price guarantee, free install, WiFi router included, no data caps
Spectrum	100 Mbps / 500 Mbps / 1 Gig	~$30 / ~$40 / ~$50 per month for year one	Fiber-powered service is mostly hybrid fiber-coaxial in Dayton; true fiber-to-the-home in select new areas; free modem

Pricing note: rates are promotional, tied to a term, and exclusive of taxes, fees, and some equipment charges. Verify current pricing and availability at your address with the provider before making any decision.

Which Greene and Montgomery County Areas Are Still Waiting for Fiber?

The remaining gaps are the ones public money exists to close. BroadbandOhio, the state office inside the Ohio Department of Development, administers the Ohio Residential Broadband Expansion Grant (ORBEG) program, created by House Bill 2 in 2021 with federal Capital Projects Fund money. Round 1, announced March 18, 2022, awarded more than $232 million across 31 counties and 33 projects to about 43,000 households, and both Greene and Montgomery counties were in that first round. Round 2, announced August 21, 2024, included Time Warner Cable Midwest, the Charter/Spectrum entity, which received about $83.1 million total for five projects, including about $17.5 million to serve 6,645 households across Auglaize, Butler, Logan, Montgomery, and Preble counties.

The programs target unserved and underserved addresses, which is why the suburban cities with strong private build-outs rarely show up on the grant lists while rural townships do. Charter separately committed a roughly $750 million private investment in late 2023 to expand service in Montgomery, Butler, Clark, Warren, Greene, Miami, Darke, Preble, and Champaign counties, and reported bringing fiber to about 930 previously unserved or underserved homes and businesses in Montgomery County by 2026. If you are buying on the eastern or southern edge of Greene County, in a rural township, or in an older Montgomery County neighborhood, the address-level map is the only honest answer, and it is worth checking the BroadbandOhio project list and the FCC map before you fall for a listing photo of a router.

Program / investment	Counties / cities	Scale	Status
Greene County + Cincinnati Bell (altafiber) partnership, Feb. 2022	Xenia, Cedarville, Jamestown, Bellbrook, Beavercreek, Fairborn	$9.6M county ARPA + ~$55M private; ~5 million feet of fiber to ~40,000 addresses	Construction underway 2022 through 2025 to 2026; address-by-address completion
altafiber Dayton-region 10-gig build, announced Feb. 2024	Centerville, Washington Township, Kettering (Montgomery); plus Greene County	~$200M total, 2,300 route miles; 70,000 addresses passed by Feb. 2026	Mid-build as of early 2026; targeting ~27,000 addresses in the Centerville and Kettering area
ORBEG Round 1, announced March 2022	31 Ohio counties including Greene and Montgomery	$232M+, 33 projects, 11 ISPs, ~43,000 households	Awarded; construction completed or in progress
ORBEG Round 2, announced Aug. 2024	Montgomery County among 23 counties (Time Warner Cable Midwest / Spectrum)	~$17.5M of an ~$83.1M award to serve 6,645 households across five counties	Awarded; construction underway
Charter / Spectrum private expansion, announced late 2023	Montgomery, Butler, Clark, Warren, Greene, Miami, Darke, Preble, Champaign	~$750M investment; fiber to ~930 previously unserved or underserved sites in Montgomery County by 2026	Ongoing

Source: Greene County, BroadbandOhio, Ohio Department of Development, Charter Communications, and provider announcements, accessed October 2026.

What Should Buyers and Sellers Check Before an Offer or a Listing?

Internet availability is not part of Ohio's standard residential disclosure form, so it never appears in the paperwork unless the seller volunteers it. For buyers, that means the FCC map and provider address checks are your own due diligence, done before the offer so the fiber gap is a budget line, not a surprise after closing. For a property where running fiber from the street to the house would cross a neighbor's lot or a utility easement, or where the home is in a historic district, ask about exterior wiring rules before you plan a mesh system that needs outside access points.

For sellers, a home with fiber to the premises and a clean, documented interior network is a legitimate marketing point, and it is one more data point in the Ohio REALTORS residential disclosure conversation. There is no rule that says you must disclose your internet provider, but a seller who can point to a gigabit connection and a whole-home WiFi setup answers a question most buyers are already asking quietly. In our experience, buyers moving from other states ask about internet in the first conversation, because remote work is a deal-breaker question in this region.

For the full picture around where fiber sits relative to the rest of a move, our Greene County region guide covers Beavercreek, Bellbrook, Fairborn, and Xenia, and our Montgomery County region guide covers Kettering, Centerville, Huber Heights, and the Dayton core. Homeowners weighing how the internet shapes the market can also read our update on how remote work is changing Dayton housing.