Best Coverage!

AT&T

100.00%
Coverage

  • Plans From $65 to $85
  • Unlimited Talk & Text
  • Up To 100GB Premium Data & 30GB 4G Hotspot
  • Top Plan Includes HBO MAX
  • Up To 720p Streaming
Call 800-288-2020

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T-Mobile

99.83%
Coverage

  • Plans From $60 to $85
  • Unlimited Talk & Text
  • Up To 50GB Premium Data & 20GB 4G Hotspot
  • Netflix And Quibi Free For A Year
  • Up To 1080p Streaming
Call 800-866-2453

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Verizon

99.75%
Coverage

  • Plans From $70 to $90
  • Unlimited Talk & Text
  • Up To 75GB Premium Data & 30GB 4G Hotspot
  • Most Plans Include Apple Music and 1 Year Of Disney+
  • Up To 720p Streaming
Call 844-751-8735

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Cellular Access In Sunnyvale, CA


  • AT&T has the best cell phone coverage in Sunnyvale.
  • Sunnyvale, CA has an average of 99.89% coverage across the four major carriers.
  • Sunnyvale is 188th in California for cell reception ahead of Mountain View, Cupertino, Los Altos, and Alviso, but behind Santa Clara.
  • AT&T is ranked as the fastest provider in California.
  • Sunnyvale has 50 cell towers within 25 miles of the city center.
  • The zip code in Sunnyvale with the best coverage for November 2024 is 94087.

Sunnyvale Cellular Coverage Map


Cell Phone Coverage By ZIP In Sunnyvale

ZIP Code Verizon ATT T-Mobile
94087100%100%100%
94086100%100%100%
94085100%100%100%
9408998%100%99%

Cell Phone Towers Near Sunnyvale, California

Licensee Address Height Tower Type
GTE MOBILNET OF CALIFORNIA LIMITED PARTNERSHIP5500 Boscell Common, Fremont, CA 9453848MAST
GTE MOBILNET OF CALIFORNIA LIMITED PARTNERSHIP937 Lee Dr, Menlo Park, CA 9402535
GTE MOBILNET OF CALIFORNIA LIMITED PARTNERSHIP2020 Warm Springs Ct, Fremont, CA 9453930MAST
GTE MOBILNET OF CALIFORNIA LIMITED PARTNERSHIP149 Commonwealth Dr, Menlo Park, CA 9402519B
GTE MOBILNET OF CALIFORNIA LIMITED PARTNERSHIP5600 Mowry School Rd, Newark, CA 9456014.3B

User Reported Dead Zones In Sunnyvale

Carrier Address Comment Date Added
Verizon182 Locksunart WayIn our house and the surrounding 10 block arwa we barely get 1 bar 2 if we are lucky and only lite on my 4G Samsung I have even had the no signal sign. Called they said it was our building. No solitions just keep paying my outrageous bill.2014
AT&T1599 Meadowlark LnWork phone has worked for more than 2 years and since 8/15/15 has not2015
T-Mobile1548 Lewiston Drpoor coverage2014
Verizon604 Casa Alberta Apartments DrNo Verizon 3G or LTE. Only 1X.2014
Verizon810 Durshire WayCoverage always soso but worked. This week coverage went to zero. All calls go to voicemail. Most outgoing calls do not connect, time out or connection is very poor with man7y parts unintelligible.2019
Sprint907 Arrowrock Pldead inside, barely ok outside2014
Verizon543 Grand Fir AveVery Poor 4G, 3G, and spotty voice.2015
VerizonEl Camino & MathildaArea code 94089 Dead zone2015
Sprint824 Blair AveVery splotchy service while on a call2019
Verizon825 E Evelyn AveTerrible cell reception, inside and outside my apartment. 0-1 bars. No LTE, only 3G one bar. Impossible to make calls. Verizon sent me a network booster for free (they wanted me to pay $250 for it but I threatened to cancel my service). Works 95% of the time, sometimes the network booster even looses the signal. Basically nothing works, calls or data without bring on WiFi and booster.2014
Verizon899 Kifer RdMinimal signal inside the bldg. 1x and LTE completely useless. Dropped calls. Missed calls. Sending and receiving texts with any attachments are impossible. No internet, even with WiFi on.2015
AT&T260 A N Mathilda AveWe moved 1000 steps away from our previous location, and the bars went from 2 to 1. Reception went from tolerably bad to untolerably worse. Called the ATT technical support, and they validated the presence of many microcells in this area (which is an indication of folks having the issue). Apparently, by beginning of next year, the 2G towers will be decommissioned and will be covered by 3G/4G instead. Starting at Poinciana and Lawrence intersection to Monroe and Lawrence intersection - the signal just drops (it is a deadzone).2019
Verizon1100 N Fair Oaks Ave1x coverage. Very consistent at Tasman crossing - Tasman drive and Fairoaks2014
AT&T1330 Geneva DrWireless phone and data service has been down since before lunch today. That makes nearly four hours and counting.2014
Data Provided By DeadCellZones.com

Cell Phone Stores Closest To Sunnyvale, CA

Carrier Address Phone Directions
AT&T124 E El Camino Real, Sunnyvale, CA, 94087408-481-9340Directions
Verizon140 East El Camino Real, Sunnyvale, CA, 94087408-245-7100Directions
T-Mobile789 E. El Camino Real, Sunnyvale, CA, 94087408-736-7145Directions