Columbia, MD
Cell Phone Coverage & Plans

Cellular Access In Columbia, MD

• AT&T has the best cell phone coverage in Columbia.
• Columbia, MD has an average of 99.86% coverage across the four major carriers.
• Columbia is 138th in Maryland for cell reception ahead of Elkridge, Ellicott City, Jessup, and Annapolis Junction, but behind Clarksville.
• AT&T is ranked as the fastest provider in Maryland.
• Columbia has 42 cell towers within 25 miles of the city center.
• The zip code in Columbia with the best coverage for October 2025 is 21045.

Columbia Cellular Coverage Map

Cell Phone Coverage By ZIP In Columbia

ZIP Code	Verizon	ATT	T-Mobile
21045	100%	100%	100%
21044	100%	100%	100%
21046	100%	100%	100%

Cell Phone Towers Near Columbia, Maryland

Licensee	Address	Height	Tower Type
NEW CINGULAR WIRELESS PCS, LLC	22409 MD-97, Brookeville, MD 20833	44.2	UPOLE
NEW CINGULAR WIRELESS PCS, LLC	10407 Balsamwood Ct, Laurel, MD 20708	41.5	UPOLE
Cellco Partnership	14196 Frederick Rd, Cooksville, MD 21723	147.2	TOWER
Cellco Partnership	17851 Lochness Cir, Olney, MD 20832	37.2	TANK
NEW CINGULAR WIRELESS PCS, LLC	13701 Jericho Park Rd, Bowie, MD 20720	55.5	MAST

User Reported Dead Zones In Columbia

Carrier	Address	Comment	Date Added
Verizon	7517 Water Lily Way	Never more than 2 bars, and it often degrades and drops during a call.	2014
AT&T	6415 Dry Barley Ln	Poor signal strength. Incoming calls frequently go straight to voicemail. Often incoming callers can hear me but I cannot hear them. Phone is useless here and has been for years.	2019
Verizon	6480 Freetown Rd	Verizon Dead zone at Giant Foods in Hickory Ridge.	2016
Verizon	6346 Wind Rider Way	Poor signal strength. Frequent problems making and receiving calls.	2019
Verizon	6480 Dobbin Center Way	Dobbin Center Way, Columbia, MD, United States	2019
AT&T	5911 Tamar Dr	Dead zone; failed calls ...was bad; then got better....now worst ever; impossible	2015
Verizon	5414 Hesperus Dr	Poor network coverage, dropped calls	2015
T-Mobile	10704 Cottonwood Way	No reception. Not able to make calls.	2019

Data Provided By DeadCellZones.com

Cell Phone Stores Closest To Columbia, MD

Carrier	Address	Phone	Directions
AT&T	10300 Little Patuxent Parkway, Columbia, MD, 21044	410-715-9448	Directions
Verizon	6480 Dobbin Center Way, Columbia, MD, 21045	410-344-5005	Directions
T-Mobile	10300 Little Patuxent Pkwy 1310, Columbia, MD, 21044	443-805-3499	Directions

Cell Phone Coverage In Nearby Cities

• Marriottsville, MD
• Windsor Mill, MD
• Glenwood, MD
• Brookeville, MD
• Linthicum Heights, MD
• Olney, MD
• Cooksville, MD
• Randallstown, MD
• Crisfield, MD
• Bronxville, NY