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🇺🇸 Sparklight (Cable One)
Sparklight, formerly Cable One, rebranded in 2019 and serves smaller markets across 24 US states, focusing on broadband-first strategy over TV bundles.
Privacy on Sparklight (Cable One)
United States has a largely free and open internet (internet freedom 4/5). VPNs are fully legal to use, and data-retention rules vary by region. Online censorship is rated minimal. United States privacy details →
Find Your Sparklight (Cable One) IP Address
Your public IP is assigned by Sparklight (Cable One) when your router or device connects, typically through DHCP or PPPoE — it is not printed anywhere on your device. The Your IP card above shows the address your current connection is using right now; for full details (location, ASN, network type, VPN detection) run the HackMyIP check or look any address up with IP Lookup. Consumer plans typically get a dynamic address that can change on reconnect or lease renewal — see static vs dynamic IP.
Sparklight (Cable One) DNS Servers
Your router receives Sparklight (Cable One) resolver addresses automatically over DHCP when it connects, so most customers never configure DNS at all. The exact resolver addresses vary by region and plan — check your router admin page for the values in use, or run the DNS leak test to see which resolver is answering your queries right now. Whichever resolver you use can see every domain you look up, which is why many people switch to a public resolver: see the best DNS servers compared and what your ISP can see. Some ISP-supplied routers do not allow changing DNS; in that case set it per device instead.
Does Sparklight (Cable One) Use CGNAT?
Whether your line sits behind carrier-grade NAT depends on your plan and region, so check it yourself: compare your router WAN address with the public IP shown above. If they differ, or the WAN address falls in 100.64.0.0/10 (the shared range RFC 6598 reserves for CGNAT), you are behind CGNAT — one public IP shared by many customers, which matters for port forwarding, hosting a server, and some games. Many providers, and most mobile networks, deploy it. Classify any address with the Special-Use IP Checker or read what CGNAT is.
Sparklight (Cable One) IP Ranges — AS11492
Sparklight (Cable One) announces its public IP ranges under ASN 11492 in the global BGP routing table, so addresses in those prefixes trace back to this network. Browse the announced prefixes on the AS11492 page, look up a single address with IP Lookup, or read what an ASN is.
FAQ
What is Sparklight (Cable One) ASN?
Sparklight (Cable One) operates under ASN 11492. This Autonomous System Number identifies their network globally.
Is Sparklight (Cable One) good for privacy?
Sparklight (Cable One) operates in United States, where data-retention rules vary by region. A VPN prevents your provider from logging your traffic.
What speed does Sparklight (Cable One) offer?
Connection speeds on Sparklight (Cable One) depend on your specific plan, the access technology (fiber, cable, DSL, or mobile), and your location. For an accurate figure, run a speed test on your own connection.
How do I check if an IP address belongs to Sparklight (Cable One)?
Look the address up and check its ASN and organization: ranges Sparklight (Cable One) announces under ASN 11492 appear in the global BGP routing table. Use the HackMyIP IP Lookup for a single address, or browse the prefixes announced under AS11492 on the ASN page.
How do I find my Sparklight (Cable One) IP address?
Your public IP is assigned by Sparklight (Cable One) when your router or device connects, typically through DHCP or PPPoE, so it is not printed anywhere on your device. The fastest way to see it is an external check, which shows the address the rest of the internet sees. The Your IP card on this page shows the address your current connection is using right now.
What DNS servers does Sparklight (Cable One) use?
Your router receives Sparklight (Cable One) resolver addresses automatically over DHCP, and the exact addresses vary by region and plan, so check your router admin page for the values in use. You can also run a live DNS leak test to see which resolver is answering your queries right now, and replace the ISP resolvers with a public resolver on your router or per device.
Does Sparklight (Cable One) use CGNAT?
That depends on your plan and region, so check your own line: compare your router WAN address with the public IP shown on this page. If they differ, or the WAN address falls between 100.64.0.0 and 100.127.255.255 (the shared range RFC 6598 reserves for carrier-grade NAT), you are behind CGNAT. Many providers, and most mobile networks, use CGNAT to share one public IP among many customers.
Why does my Sparklight (Cable One) IP address keep changing?
Consumer ISPs typically assign dynamic public IPs with a limited lease, and address pools are reused as leases expire, so a reconnect, a router reboot, or a lease renewal can hand you a different address. If you need an address that never changes, ask Sparklight (Cable One) whether your plan supports a static IP.
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