We connect you with what matters most. Sparklight Business is a leading broadband communications provider serving more than 106,000 business customers in 24 states. Sparklight Business provides consumers with a wide array of connectivity and entertainment services, including high-speed internet and advanced Wi-Fi solutions, cable and IP television and phone services.Sparklight Business provides scalable and cost-effective services for businesses ranging in size from small to mid-market, in addition to enterprise, wholesale and carrier customers.Business InternetBusiness PhoneBusiness TVEnterprise Solutions
Sparklight Business (business.sparklight.com) has 44 customer reviews on Five Star Index, with an average rating of 3.6 out of 5.
Also known as
business.sparklight.com
Website
business.sparklight.com
Category
Internet & Software
Location
Phoenix, Arizona
Listed on Five Star Index
2026
About these reviews
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The company replied to 77% of reviews.
Latest
Most recent review: April 2026.
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Reviews are shown as their authors wrote them. The company can reply, but cannot edit them.
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I would stay away from Sparklight as much as I can. They were the only provider in my area so I have no choice but to use their service. My internet is going on and offline which makes it so inconvenient for my business. It’s much better when I’m connected to my hotspot on my phone. I have 3 years of contract with them; they would not let me break contract early even though they are unreliable. I would have to pay over $2,000 just to break contract which I have 2 years. They are the worst. I never have any problems with any other companies I had in the past in another area.
JB
Jason B.
Sales guy unprofessional
Sales guy unprofessional. When bill was due, he would come by 2 or 3 times a week to collect. Even would talk bad about previous customers that were late on bills. As well, he went to a Wake service to bad mouth me to advertising station to not do business with me .Also brought his supervisor to our store and she said she used to follow us on Facebook and in the same breath said she would put together an advertising plan for us. Unprofessional and will never do business with them again.
DC
David C.
Incorrect charges after install
After the installation I got a bill me charged for a modem I never got. I purchase my own modems.
Response from Sparklight BusinessOct 24, 2022
Hi David. We are truly sorry to hear this was your experience and would like to look into this further so we can improve our customer experience. If you have a moment, please send us an email with your name, account number or address, contact information and a link to this review for reference to [email protected]. Thank you.
PP
P. P.
Obsolete, oversubscribed network and little heed to customer requirements
I was given a committed service date without validating that was even feasible. Sparklight missed that date by over a month because they had no capacity left in the network. I was asked if I needed a modem and said "no, I've got a CM1200 I bought". Turns out they won't allow me to use that modem with static IPs, but they failed to tell me that when I signed up for service. They want me to buy an obsolete and expensive Arris Surfboard DOCSIS 3.0 router instead, then disable 90% of the functionality. I asked why their DNS servers don't implement DNSSEC for added protection against spoofing, and was told there was a problem with Netflix two years ago. Sparklight did no follow-on investigation to confirm that Netflix still has that issue [they don't], so they're basing their decision on information garnered 2 years ago and have not bothered to ensure that it's even still relevant.
Update: I responded last week to the solicitation (below) to look into the issue and resolve it, with all of the requested information and more. True to form, Sparklight never got back to me.
Update 2: I've sent 5 emails complaining about network abuse that's targeting my subnet. I have yet to have the issue acknowledged, much less resolved. I've never worked with a worse MSP in 30+ years. I rated them '1' star out of 5 because zero wasn't an option.
Update 3: I've complained 4 times over as many weeks about receiving NetBIOS Datagram broadcast traffic spoofed as my default gateway. I've not received a response, despite calling the Network Operations Center and bringing my previous email complaints to their attention. I was told someone would look into this and get back to me. Again, endemically underperforming, they failed to do so. Forwarding directed broadcasts has been proscribed since RFC-2644 was published 22 years ago. I'm told I can't operate a standalone modem because that's a security risk, but allowing DDoS amplification of Smurf Attacks isn't? Is there anyone at Sparklight who knows what they're doing?
Citing their own "Network Management Disclosure":
"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 such, Sparklight blocks ports 135, 136, 137, 138, 139 & 448."
If that were true, why would I be seeing this traffic?
Also citing this document:
"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."
Again, not so. I was told that if I wanted a static IP address, I had to purchase an Arris DOCSIS 3.0 device and couldn't use my Netgear DOCSIS 3.1 modem.
Further, this document references another:
.../115009158227-Which-Cable-Modems-are-Supported-
which states that Netgear CM1200 modems are "recommended", but that's the very device I was told I couldn't use (it's still in the box, alas).
Further:
"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 [...]"
Then why am I seeing directed broadcasts on port 138?
And the "Business Internet FAQ" states:
"Sparklight requires customers to use a DOCSIS 3.0 Cable Modem. These modems incorporate the latest cable technology, have the capability to deliver faster internet speeds, and have a longer expected lifetime."
Let's see... DOCSIS 3.0 was released August 2006. Is that when this document was last updated? Because DOCSIS 3.1 was in 2013 (nearly 10 years ago!), and DOCSIS 4.0 will be released some time in 2023.
Jenae Heck: are you out there listening?
Update 4: After asking a few simple questions, like "why do business customers pay more for inferior service with fewer choices?", "who decides what modems are homologated on the network, and why can residential subscribers choose from 40+ modems but business customers have 4-5 choices?", and "who can I talk to about getting my modem approved for connection?" I'm still waiting for a response.
Yeah, they can pay lip service and say how terribly sorry they are for the poor treatment I've gotten... even as they continue it. These are not complicated questions. Getting answers shouldn't be a 3 month odyssey. And why is my modem not a threat on the residential service, but is on the business service? Does the business service have inadequate security? And we pay more for this?
Update 5: Weeks later and no follow up. They can write "we'll follow up", but they don't actually do it, do they?
Response from Sparklight BusinessOct 24, 2022
Hi P. Prindeville. I'm truly sorry for the delay in response here. I have provided your information to our technical care team. Once I receive a response, I will respond to the email you had sent us to provide and update. Thank you.
DA
Dallas
Bad service
The service is terrible especially CUSTOMER SERVICE and they never send the first bill
Response from Sparklight BusinessOct 24, 2022
Dallas, providing great customer service at every interaction with our customers is very important to us and we are truly sorry to hear this has not been your experience. We'd love the chance to speak with you directly to obtain more information regarding your recent interaction, as well as provide any additional assistance you may need. Please send us an email with your name, account number or address, contact information and a link to this review for reference, to [email protected]. Thank you.
ST
Stefanie
We relocated our business and have been…
We relocated our business and have been without internet for 4 weeks….I don’t know why your asking how my installation went when I still haven’t had my internet installad after nearly a month
Response from Sparklight BusinessOct 24, 2022
Hi Stefanie. This certainly does not sound like the experience we strive to provide. Please send us an email with your name, account number or address, contact information and a link to this review for reference, to [email protected] so we can take a closer look into this for you. We hope to hear from you soon. Thanks.
MA
Mary
The guy who did the installation was…
The guy who did the installation was fantastic. But I have a real problem with the prices you charge for the service you provide. I am deeply disturbed regarding your actions of “protest” concerning the grant we won to have broadband capabilities in rural Lake Providence. Your actions are unconscionable and I will hold you accountable for this act of sheer greed. I am sincerely praying that God will get a hold of you and in His mercy bring to a better decision making process. You provide a “service” to your customers. You treat your customers appallingly because of the prices you charge and you do it because you choose to exploit our “smallness” and rural location. That is wrong. You need to do better and make appropriate changes because you can!!! With no real change to your bottom line and you know it. Stop taking advantage of those of us who are not in a position if power.
Response from Sparklight BusinessSep 28, 2022
Thank you for taking the time to provide your feedback. We’re truly sorry that you’re not completely satisfied with our services. Your comments have been provided to our leadership team so that they’re aware. If you have additional questions or concerns, please email us at [email protected].
TD
Tom DeRossett Harbor Lake S.
How not to do a new network install.
Fink 2 Project/ Harbor Lake Services
Incorrect configuration for network (installation delayed because attempting to port an incorrect phone number) Confusion of 2 different projects both pending. Re-submit contracts.
Installation Crew unprepared twice. Insufficient materials, tools and equipment.
Incomplete installation, Wi FI access points not provided as contracted. 2 additional service calls.
Refused to provide Password for network to Project Manager (10 day delay) 3rd service call to set-up network. Service technician was very helpful at this juncture.
Did not communicate Not a "Turn Key" installation. (Wi-Fi Access point installation customer responsibility.)
Second network still awaiting parts for install.
Response from Sparklight BusinessSep 21, 2022
Hello Tom. We are truly sorry to hear this was your experience! This certainly does not sound like the kind of service we aim to provide to our customers. If you have a moment, please send us an email with your contact information such as your name, and account number or service address, to [email protected] so we can see what we can do to assist you further. Thank you.