States / New York / Westchester County
Internet providers in Westchester County, NY: CGNAT, static IP and IPv6
Short answer: 2 of the ISPs we track report home service in Westchester County, New York, in the FCC's broadband data. Public IPv4 by default, according to our sources: Optimum (Altice). CGNAT on some or all plans, according to our sources: Spectrum (Charter).
Listed ISPs report home service to at least 1% of the county's homes. That doesn't mean your address can get them: check availability with the ISP. Every fact links to a source on the ISP's page.
- 428,774 homes (FCC count of residential locations)
- 89% of homes can get fiber
- 78% can get 1 Gbps down / 100 Mbps up
Filter this county in the ISP finder: all ISPs in Westchester County · without CGNAT · static IP on home plans · IPv6
Wired and regional ISPs in Westchester County
| ISP | Share of the county's homes (FCC) | Type | CGNAT by default | Static IP on home plans | IPv6 | Server rules |
|---|---|---|---|---|---|---|
| Optimum (Altice) | 88% | Cable / Fiber | No reports | Business only | Unknown | Limited |
| Spectrum (Charter) | 6% | Cable | Some plans/areas partly official | Business only | Yes | No explicit ban |
The share is the part of the county's homes where the ISP's parent company reported home service, so it can include the company's other brands and technologies. Some ISPs we track aren't in this county data (see the New York page for ISPs mapped by state).
Sold nationwide (satellite and 5G home internet)
These are sold across the US, but whether you can get them depends on your address and, for 5G, on local network capacity.
| ISP | Type | CGNAT by default | IPv6 | Server rules | Where the state comes from |
|---|---|---|---|---|---|
| AT&T Internet Air | 5G fixed wireless | Yes partly official | Unknown | Unknown | sold nationwide |
| Verizon 5G Home Internet | 5G fixed wireless | Some plans/areas reports | Unknown | Unknown | sold nationwide |
| T-Mobile Home Internet | 5G fixed wireless | Yes partly official | Yes | Unknown | sold nationwide |
| Starlink | Satellite (LEO) | Yes official | Yes | Unknown | sold nationwide |
| Hughesnet | Satellite (GEO) | Yes reports | Unknown | Unknown | sold nationwide |
| Viasat | Satellite (GEO) | Unknown | No | Restricted | sold nationwide |
FAQ
Which internet providers in Westchester County don't use CGNAT?
Of the ISPs we track that report home service in Westchester County, New York, these give a public IPv4 address by default, according to our sources: Optimum (Altice). Check availability at your address with the ISP.
How many homes in Westchester County can get fiber internet?
The FCC's broadband data (Dec 31, 2025 filing) counts 428,774 homes in Westchester County; 89% of them can get fiber service from at least one provider, and 78% can get 1 Gbps download / 100 Mbps upload service by any technology.
Source for coverage and home counts: FCC Broadband Data Collection (county summaries, Dec 31, 2025 filing). CGNAT, static IP, IPv6 and server rules come from the sources on each ISP page. · All county pages · Am I behind CGNAT? · Submit a report