4G LTE & 5G Coverage In Ann Arbor

The table below shows the proportion of Ann Arbor with coverage from different cellular technologies.

Network	4G Coverage	5G Coverage
AT&T	100%	100%
T-Mobile	100%	96%
Verizon	100%	100%
Dish	0%	99%

Don't be alarmed by Dish's lack of 4G coverage in Ann Arbor. Dish has a newly-built network that's 5G-only.

US Cellular And Dish Roaming Coverage

US Cellular does not have native coverage in Ann Arbor. However, some US Cellular subscribers may still have coverage in Ann Arbor thanks to roaming agreements.

Millimeter Wave 5G

Parts of Ann Arbor have millimeter wave 5G coverage. This novel celluar technology offers extremely fast speeds, but the coverage potential is limited. Millimeter waves aren't well-suited for traveling long distances.

Network	Millimeter Wave
Verizon	✓
AT&T	?
T-Mobile	?

Millimeter wave coverage in Ann Arbor is likely sparse (mostly limited to dense, outdoor areas like popular parks or sports stadiums).

Ann Arbor Cell Signal Strength

There are 693 map hexes within the census-defined boundaries of Ann Arbor. The table below shows the proportion of hexes at various levels of signal strength. Where both 4G and 5G coverage is available, data is drawn from whichever technology offers a stronger signal.

Network	Strong	Decent	Weak	None
AT&T	14%	59%	28%	0%
T-Mobile	39%	57%	4%	0%
Verizon	38%	61%	1%	0%
Dish	9%	79%	11%	1%

For most purposes, decent signals are perfectly sufficient. Weak or non-existent signals cause far greater degradation in user experience.

Crowdsourced Coverage Data In Ann Arbor

Coverage Critic has 15,340 crowdsourced data points from 426 map hexes within the boundaries of Ann Arbor. Data is available for AT&T, T-Mobile, and Verizon.

Network	Unique Hexes	Total Observations
AT&T	293	5,414
T-Mobile	324	3,177
Verizon	278	6,731

Click here to toggle to the map's crowdsourced data layer.

Michigan State-Wide Coverage Scores

Network	Coverage Score
Verizon	8.6 / 10
AT&T	8.7 / 10
T-Mobile	8.1 / 10

Data Sourcing

Coverage maps draw on data from the FCC's Broadband Data Collection and Coverage Critic's crowdsourcing.

The coverage information for Ann Arbor is rated as medium-high confidence. Documentation is available elsewhere covering limitations of Coverage Critic's approach.