Best 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

View Plans & Pricing



  • 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

View Plans & Pricing



  • 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

View Plans & Pricing

Cellular Access In Diamond Bar, CA

  • AT&T has the best cell phone coverage in Diamond Bar.
  • Diamond Bar, CA has an average of 99.74% coverage across the four major carriers.
  • Diamond Bar is 250th in California for cell reception ahead of Walnut, Mt Meadows Area, Chino Hills, and San Dimas, but behind Pomona.
  • AT&T is ranked as the fastest provider in California.
  • Diamond Bar has 16 cell towers within 25 miles of the city center.

Diamond Bar Cellular Coverage Map

Cell Phone Coverage By ZIP In Diamond Bar

ZIP Code Verizon ATT T-Mobile

Cell Phone Towers Near Diamond Bar, California

Licensee Address Height Tower Type
Los Angeles SMSA Limited Partnership1960 Northview Ct, Azusa, CA 9170215.2POLE
Los Angeles SMSA Limited Partnership1461 N Red Gum St, Anaheim, CA 9280645.7POLE
Los Angeles SMSA Limited Partnership1414 Buena Vista St, Duarte, CA 9101019.8B
Los Angeles SMSA Limited Partnership2426 N Euclid Ave, Upland, CA 917846.7BANT
Los Angeles SMSA Limited Partnership5146 E Hunsford Dr, Orange, CA 9286743.9MAST

User Reported Dead Zones In Diamond Bar

Carrier Address Comment Date Added
Verizon576 N Diamond Bar BlvdWeak 4G LTE Signal. 4G LTE Service drops to 3G service.2014
Data Provided By

Cell Phone Stores Closest To Diamond Bar, CA

Carrier Address Phone Directions
AT&T515 N Grand Ave Suite A, Walnut, CA, 91789909-551-8237Directions
Verizon21080 Golden Springs Dr, Walnut, CA, 91789909-869-0059Directions
T-Mobile21710 Valley Blvd Suite D, Walnut, CA, 91789909-444-6803Directions