Internet Service Providers near Diamond Bar, CA

26 locations found near Diamond Bar

“I'm have been so pleased with Netdragon Websoft Inc! The service, staff & overall experience has been just as satisfying as not having to be strong armed by the powers that be. Now if they could expand to the financial industry I can buck the rest of the system! Kudos to you Netdragon Websoft Inc...”

2.3 Poor5 Reviews

“I was not only helped here with my new phone but given the best advice to get the best deal. Thank you anais for all the help you saved me alot of money and gained a forever customer”

4.8 Superb204 Reviews

“I love this place, all the representatives are very helpful they helped me today. I visited many metros but this one gave me the better deal. Special thanks to the store manager for her promotion.”

4.6 Superb127 Reviews

“Christian Lopez and his manager were more than helpful, answered all my questions, and got me out the door with an amazing deal. I live about an hour away, and next time I need a new phone, I will be coming back to him. Nothing but great service!!! This is how getting a new phone should feel like.”

4.1 Good140 Reviews

“Had an amazing experience at the Walnut Version store. Carlos and Victor were absolutely incredible. Carlos was so patient, kind, and knowledgeable while helping us set up with my son’s new iPhone He got everything transferred over and working perfectly before we left. Victor gave me a great package deal for out of country phone usage and fixed some issues on my husband’s phone. Both Carlos and Victor are extremely knowledgeable , helpful, and professional! If you need help, these guys are the best!”

4.8 Superb32 Reviews

“I had an issue transferring phone service from another carrier to Boost, and stopped by the Boost store in Covina (Arrow Hwy & Azusa Ave.) The service rep (going by memory, I believe reps' name was Martin) did an excellent job setting up service with Boost, which was a tricky situation for a number of reasons, knew all the work arounds to get it done, and was patient as it took a little time. Service was set up and working by the time we left the store.”

4.4 Superb71 Reviews

“Kevin made the switch over from AT&T perfect. He took his time explained everything in a easy to understand way. I recommend if you come to this location ask for Kevin hands down the best salesperson I have ever dealt with. 6 star experience.”

3.9 Good155 Reviews

“Went to handover tradin phone after upgrade and out in 2 mins ! Fantastic support staff . Only reason it is 4 and not 5 star, it was overcrowded and had to return twice . Tmobile can promote online appt possibly make it mandatory to enter store .”

3.8 Good175 Reviews

“Hector took the time to explain all the benefits to my IPhone 17 Pro Max. That’s what I value the most with a company that I’m working with. CUSTOMER SERVICE. KEEPS MY BUSINESS. AWESOME EXPERIENCE. THX Hector”

3.7 Good142 Reviews

“We bought two iPhones and two iPads here and the service is excellent. All those people that helped us were competent and responsive, and then followed up helping us transfer our phones. This will carry my highest recommendations.”

3.7 Good191 Reviews

“Carlos was super helpful with a new phone and line. Informative and gave great suggestions but wasn’t pushy when we decided what we wanted. Great customer service and made sure I was out of there in the timeframe I had.”

3.6 Good276 Reviews

“My recent visit at the store was great thanks to Claudia she’s amazing. She helps a lot I recommend to ask for her if you pass by . Exelente experience to talk to her she the best”

3.9 Good153 Reviews

“Nichole S was very professional! She deserves a raise and paid time vacation! She helped open a new Verizon mobile service for 3 of my family members. Tried to do this over the phone for 2 days and nobody could help me. Kudos Nichole S! ?

Also, Tamara for phone support was good.

The MVP for this is Dennis Aquino!
He never gave up. Took me 2 days and multiple hours to try to port my phone number from another provider. Dennis was patient and stayed with it until successful transfer to Verizon! He deserves cash and free meals! A blessing!”

3.7 Good171 Reviews

“Thank you Stephanie H. for your patience, knowledge and excellent customer service ??. You made my transition to TMobile a very pleasant experience ?. Thank you, thank you ??.”

3.7 Good66 Reviews

“To whom it may concern Leandra one of ur employees needs a raise she has gone above and beyond her work duties she is personable knowledgable smart and sweet that's why she needs a raise as well as her supervisor Miss JLoc, Maria and Joaquin are also super warmest thoughts Miss Candy Nunley”

3.6 Good134 Reviews

“Chris was amazing at helping us have a smooth experience when we upgraded our phones! He was super knowledgeable and friendly. We are so happy with our experience. Thank you Chris!”

3.7 Good127 Reviews

“Amazing Experience at the T-Mobile Kiosk in Costco!

I stopped by the T-Mobile kiosk inside Costco to look into plan options for my sister and I and I’m so glad I did. The rep who helped us was super kind, patient, and really took the time to explain everything in a way that made sense.
They showed us the difference between our current plan and the new ones available — and how we could actually get more value with better features that fit our needs. It didn’t feel salesy at all, just honest and helpful guidance.
The whole experience was quick, easy, and honestly a relief. If you’re thinking about switching or upgrading, definitely check out this kiosk. they made the process simple and genuinely care about their customers.”

3.7 Good95 Reviews

“Diana was amazing ? with helping my husband and i with our New Phones & home internet services, he got IPhone and i got my Samsung Thank you again Diana see you in 12 months”

3.5 Good146 Reviews

“Cameron helped out my wife in purchasing a new cell phone for my son. This was his 1st phone ? and Cameron had a lot of patience with my wife which I greatly appreciate.”

3.3 Good85 Reviews

“Manny helped big time. Long story short make sure you have insurance or you’ll have to go into great detail with whatever options are available to you and there’s not many. Thankfully Manny was super patient and helped me replace my phone explained all options available in detail. He even showed
me the accessories I would use daily with my new phone. Thanks a bunch Manny.”

3.2 Average134 Reviews

“I came into this t mobile store yesterday to pick up a new phone for my mother. We were greeted right away by Karina she put us on the waiting list. Luckily she ended up helping us with what we needed. She was very helpful and patient. My mom’s old phone had so many issues and she took her time to fix it since we wanted to keep her same number. She showed no signs of distress or frustration. We were there for like an hour but she got the work done ✅ and my mom left happy! Thank you Karina for your great customer service.”

3.2 Average66 Reviews

“Store was nice and the wait was short. However store employee Luis was horrible had no interest in helping us and merely brushed us off to his Manager. The manager Eduardo took care of my parents that switched from Verizon to Spectrum mobile. I was very thankful that Eduardo was patient and eager to help us.”

3.1 Average117 Reviews

“I had an excellent experience with T-Mobile thanks to Tony and Debbie. Both of them were extremely helpful, patient, and professional. They took the time to answer all my questions and made sure I understood everything clearly.”

3.1 Average143 Reviews

“Hi Robert, thanks a lot for helping to cancel the acc. Very friendly very effective very patient very professionally . You are the best ! Definitely later on any business , deserve u! Thanks a lot & Happy new year 2026! T mobile provide the best customer service & Robert is the best team member.”

3.1 Average116 Reviews

“So far so good. Been using it for about a year and their service has been great.

Very few internet outages. Solid Speeds. Responsive customer service (via email).

I accidentally pulled up the wire once while pulling weeds and they fixed it asap. No visible damage to my lawn either.”

3.1 Average48 Reviews

“My knowledge of and interest in technology are very limited. ISN Global has taken care of my technology needs for the last 20 years. Whether recovering documents following a computer crash, replacing hardware, providing assistance over the phone or in person, I have been very pleased with ISN Global’s services and staff. Thank you CEO Ed Reece and staff for keeping my technology operating.”

3.7 Good3 Reviews