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Network Management Disclosure



Sparklight® is a dba ("doing business as") alias of Cable One, Inc. (NYSE:CABO). The Federal Communications Commission ("FCC") requires that we provide the following information regarding our mass market retail broadband Internet access services, including information regarding any network management practices that we employ, the performance characteristics of our services, and the commercial terms of our service offerings. This disclosure is intended to provide information sufficient for consumers to make informed choices regarding the use of such services and for content, application, service, and device providers to develop, market and maintain internet offerings, and should be read in conjunction with Sparklight's "Acceptable Use Policy" ("AUP"), available at and our "Terms of Service" ("TofS"), available at

This statement relates solely to that portion of our network devoted to providing mass market retail broadband Internet access service to our customers. Other portions of our network may be used to provide TV service, phone service, or other information or specialized services, each of which is subject to its own terms and conditions of service. For further information regarding the services offered by Sparklight in your area, please see




Network Management

The bandwidth and network resources used to deliver our Internet access service are limited and shared among users. While we strive to provide sufficient bandwidth to meet the foreseeable needs of our customers, our network may be negatively affected by the rapidly increasing demands of users whose actions strain the ability of the Internet to meet that demand. Conscious of this, the FCC allows Internet access service providers such as Sparklight to engage in "reasonable network management practices" to respond to situations such as network congestion or excessive users.

Consistent with the FCC's rules, Sparklight reserves the right to employ the types of "reasonable network management" tools and techniques that are commonly used in the industry to protect consumers from activity that can unreasonably burden our network and may cause service degradation, including security attacks and network congestion. The use of certain network management tools and techniques may affect users' Internet performance, such as download and upload times or response times while surfing the Internet or playing games. The effects of network management typically will be noticeable only for a brief period of time, if at all.

Network management tools and techniques may include detecting malicious traffic patterns and preventing the distribution of viruses or other malicious code, limiting the number of sessions a user can conduct at the same time, limiting the aggregate bandwidth available for certain usage protocols, regulating the delivery speed of mass emails, rejection or removal of "spam" or otherwise unsolicited bulk email, detecting and preventing the distribution of viruses and other malware, port blocking, measuring subscriber bandwidth usage, bandwidth allowances, traffic prioritization and other tools and techniques as Sparklight may from time to time determine are appropriate. New network management techniques are being developed on an ongoing basis to address evolving challenges and threats to the network and users, and Sparklight may elect to use some or all available network management techniques on a temporary or as-needed basis. Network management tools and techniques may also be employed to allow Sparklight to comply with various legal requirements, including, but not limited to, providing proper assistance to law enforcement, national security, emergency response and disaster relief agencies.

The network management tools and techniques employed by Sparklight do not target specific usages or applications and instead focus in a content-neutral manner on bandwidth usage in real time, with the goal of providing reasonable and equitable access to the network for all similarly situated customers. In other words, to the extent that the use of network management practices may affect the performance or other characteristics of Internet service, they are designed to affect all similarly situated customers equally.



Usage Limits

In addition to reserving the right to manage network usage to ensure that the activity of a small number of users at a particular point in time does not degrade, inhibit or interfere with the use of our network by others, Sparklight also maintains an "excessive use" policy that addresses total usage of an account in a month.

Please see our AUP at for more information regarding Sparklight's excessive use policy.



Application Specific Behavior

Sparklight does not discriminate against or prevent you or other users of its service from sending and receiving the lawful content of their choice; running lawful applications and using lawful services of their choice; or connecting their choice of legal devices, provided that such applications and services do not harm the network or the provision of broadband Internet access service, cause malicious traffic patterns facilitate theft of service or the distribution of unlawful content, or otherwise harm or unreasonably impair other users of the service. Similarly, Sparklight does not impair or degrade particular content, applications, services or non-harmful devices so as to render them effectively unusable, subject to the policies and procedures outlined herein.

As described above, Sparklight reserves the right to employ network management practices, e.g., to prevent the distribution of viruses or other malicious code, as well as to block, in accordance with applicable law, transfer of unlawful content such as child pornography or the unlawful transfer of content. As such, Sparklight blocks ports 135, 136, 137, 138, 139 & 448. SMTP Port 25 is restricted to Sparklight Mail servers for residential customers. In addition, Sparklight may enter into arrangements to provide Internet service to third party establishments (such as coffee shops, bookstores, hotels or libraries) who then may offer such service to their customers, guests or others. Nothing herein is intended to address network management practices, performance characteristics or commercial terms that may be adopted by such third party premise operators in connection with the provision of Internet service to others.



Device Attachment Rules

Sparklight requires customers to use a modem model to connect to its network that Sparklight's research has indicated is compatible with its equipment and services. Use of a non-approved modem may be subject to service interruption due to network updates or incompatibility. A DOCSIS 3.1 or higher modem is required to receive nearly all of Sparklight's speed offerings (8 channel or higher version works best). Although DOCSIS 3.1 modems will operate on our network at this time, customers may experience substantially slower speeds than advertised. Information regarding approved modem models can be found at or by contacting our customer service center at 877-692-2253. The pace of technological change is rapid and due to customer demand and other advancements, modem models previously compatible may become obsolete. Sparklight may require customers to replace a non-approved or previously approved modem model with an approved one and reserves the right to discontinue provision of service to any non-approved modem . Customer may choose to lease a modem from Sparklight or purchase an approved model from a retailer.




Sparklight also employs certain practices to protect the security of our customers and our network from unwanted and harmful activities. These include practices designed to protect our servers against Denial of Service attacks and to prevent spam and identity theft. For more information, see



General Spam Filtering

Inbound filtering for Sparklight email is done via Gmail provided by Google. Google will block email from any source that exceeds its thresholds for email that is sent using identified spam methods. This includes but is not limited to numbers of recipients, number of rejected users and certain header information. These thresholds are dynamic and more data cannot be given without compromising the integrity of our filtering methods.

More information on Spam can be found on the Help Page:

When security measures are employed, they may affect performance characteristics of service or the ability to access certain websites, but such measures are employed in a manner designed to have non-discriminatory impact on all similarly-situated customers. Sparklight engages in network security measures such as those outlined above to enhance the online experience of its customers. However, no such measures are infallible and we cannot guarantee against security problems.



Service Description

Sparklight provides what is known as a "fixed broadband" Internet access service that is designed to provide the capability to transmit data to and receive data from all or substantially all Internet end points. Sparklight offers multiple packages (or "tiers") of Internet access service for residential or commercial use with varying targeted speeds, features and bandwidth usage limitations that may affect the suitability of such service for real-time applications. The features, pricing and other commercial terms of our service offerings are modified from time to time, and not all packages are available in all areas. Each package is priced to reflect the particular speed, features and bandwidth usage limitations of that package. Full descriptions of currently available packages and pricing can be found on Sparklight's website at or by contacting our customer service center at 877-692-2253.

The FCC requires that we disclose information regarding the expected and actual speed and latency of our Internet access service offerings. Our advertised speeds represent our targeted speed for a particular service package. Actual speeds may be faster or slower than advertised speeds. The speed a subscriber experiences may vary based on a number of factors including, but not limited to (i) variances in network usage; (ii) the capabilities and capacities of the customer's computer and/or local area network (LAN) devices such as wireless routers; (iii) latency (i.e., the time delay in transmitting or receiving packets as impacted in significant part by the distance between points of transmission); (iv) the performance of the content and application providers the consumer is accessing, such as a search engine or video streaming site; and (v) performance characteristics of transmissions over portions of the Internet that are not subject to Sparklight's control. Our Internet access service is provided on a best efforts basis and speeds or other performance characteristics cannot be guaranteed.

Below is a summary of speed and latency test results conducted by Sparklight between September 1, 2022 and September 30, 2022:


Non-Prime Time

Advertised Download Tested Average Download Advertised Upload Tested Average Upload Average Latency
10 Mbps 17 Mbps 1 Mbps 1 Mbps 37 ms
15 Mbps 17 Mbps 1 Mbps 1 Mbps 36 ms
15 Mbps 17 Mbps 3 Mbps 2 Mbps 34 ms
25 Mbps 24 Mbps 3 Mbps 3 Mbps 32 ms
50 Mbps 60 Mbps 5 Mbps 5 Mbps 58 ms
100 Mbps 113 Mbps 3 Mbps 3 Mbps 28 ms
100 Mbps 113 Mbps 10 Mbps 11 Mbps 27 ms
150 Mbps 167 Mbps 5 Mbps 5 Mbps 30 ms
200 Mbps 209 Mbps 10 Mbps 11 Mbps 31 ms
200 Mbps 212 Mbps 20 Mbps 21 Mbps 29 ms
250 Mbps 243 Mbps 10 Mbps 11 Mbps 30 ms
300 Mbps 291 Mbps 10 Mbps 10 Mbps 29 ms
300 Mbps 300 Mbps 20 Mbps 20 Mbps 29 ms
300 Mbps 304 Mbps 30 Mbps 30 Mbps 29 ms
500 Mbps 402 Mbps 40 Mbps 36 Mbps 29 ms
600 Mbps 531 Mbps 30 Mbps 30 Mbps 28 ms
940 Mbps 655 Mbps 50 Mbps 49 Mbps 28 ms


Prime Time (8- 11pm)

Advertised Download Tested Average Download Advertised Upload Tested Average Upload Average Latency
10 Mbps 17 Mbps 1 Mbps 1 Mbps 37 ms
15 Mbps 17 Mbps 1 Mbps 1 Mbps 32 ms
15 Mbps 17 Mbps 3 Mbps 2 Mbps 36 ms
25 Mbps 24 Mbps 3 Mbps 3 Mbps 33 ms
50 Mbps 60 Mbps 5 Mbps 5 Mbps 58 ms
100 Mbps 113 Mbps 3 Mbps 3 Mbps 28 ms
100 Mbps 113 Mbps 10 Mbps 11 Mbps 27 ms
150 Mbps 166 Mbps 5 Mbps 5 Mbps 31 ms
200 Mbps 208 Mbps 10 Mbps 11 Mbps 31 ms
200 Mbps 211 Mbps 20 Mbps 21 Mbps 30 ms
250 Mbps 243 Mbps 10 Mbps 11 Mbps 31 ms
300 Mbps 279 Mbps 10 Mbps 10 Mbps 28 ms
300 Mbps 296 Mbps 20 Mbps 20 Mbps 29 ms
300 Mbps 302 Mbps 30 Mbps 30 Mbps 29 ms
500 Mbps 394 Mbps 40 Mbps 35 Mbps 29 ms
600 Mbps 525 Mbps 30 Mbps 30 Mbps 28 ms
940 Mbps 642 Mbps 50 Mbps 48 Mbps 28 ms

There are many factors affecting speed and latency. Customers may wish to conduct their own test. Speed tests are available at and



Impact of Specialized Services

The FCC's "open Internet" rules distinguish between our mass market retail broadband Internet access services and "specialized services" that share capacity with our broadband Internet access service over our last-mile facilities. Examples of such "specialized services" may include Sparklight's voice over IP phone ("VoIP") service which shares bandwidth with our Internet access service and because of its nature sometimes receives network priority. Because of this, it is possible that increased use of our phone service may temporarily impact our broadband Internet access service at particular times. Sparklight routinely monitors how all its services use bandwidth to minimize any impact on our broadband Internet access service.




As noted above, Sparklight offers multiple tiers of broadband Internet access service. The current pricing and other terms and conditions of these tiers (including information regarding fees for early termination or additional network services) can be found by clicking here (PDF reader required; Disable pop-up blocker) or obtained by calling our customer service center at 877-692-2253. The pricing and other commercial terms of our broadband Internet access services are subject to change and the information provided in this disclosure statement is not intended to supersede or modify any of the terms and conditions of service as applicable to a particular customer.


Privacy Policies

Your privacy is very important to us. Personal information you provide to Sparklight is governed by Sparklight's Privacy Policy, which is posted on Sparklight's website at and is subject to change from time to time. Personal information provided by you to Sparklight is used primarily to provide a customized experience as you use our services, and is generally not shared with third parties. Sparklight reserves the right, as required or permitted by law, to provide account and user information, including email, to third parties and to cooperate with law enforcement authorities in the investigation of any criminal or civil matter. Such cooperation may include, but is not limited to, monitoring of Sparklight's network consistent with applicable law.


Redress Options

For immediate assistance with issues or complaints involving your broadband Internet access service, please contact our customer service centers at 877-692-2253. We have agents available 24 hours a day, seven days a week. Customers can also email us at  

Written complaints can also be sent via U.S. mail to: Jenae Heck, Esq. Sparklight, 210 East Earll Drive, Phoenix, AZ 85012. The FCC has established procedures for addressing informal and formal complaints relating to its "Open Internet" rules. For information concerning these formal and informal complaint procedures, please refer to the FCC's website at