AT&T against T-Mobile only, one state at a time: the share of each state's area where each reports 4G LTE or 5G outdoors.
AT&T vs T-Mobile nationally
By share of US area with 4G LTE outdoors, AT&T reports 57.4% and T-Mobile 47.3%: a gap of 10.1 points in AT&T's favor.
On 5G at 7/1 Mbps the order is reversed: T-Mobile 40.7% against AT&T 34.2%, a 6.5-point gap.
| Measure (share of US area) | AT&T | T-Mobile | Gap (AT&T − T-Mobile) |
|---|---|---|---|
| 4G LTE, outdoors | 57.4% | 47.3% | +10.1 |
| 4G LTE, in a moving car | 35.3% | 20.7% | +14.6 |
| 5G, 7/1 Mbps | 34.2% | 40.7% | -6.5 |
| 5G, 35/3 Mbps | 23.2% | 28.9% | -5.7 |
Source: FCC National Broadband Map, carrier filings as of December 31, 2025. Share of area where each carrier reports 4G LTE or 5G to a phone outdoors. Carrier-reported, not measured.
All 50 states and DC, head to head
AT&T leads in 26, T-Mobile in 1, and 24 show no clear leader.
| State | AT&T | T-Mobile | Margin (AT&T − T-Mobile) | Result | |
|---|---|---|---|---|---|
| Alabama | 81.9% | 57.6% | +24.3 | AT&T by 24.3 points | View → |
| Alaska | 4.2% | 0% | +4.2 | Low from both | View → |
| Arizona | 62.8% | 41.7% | +21.1 | AT&T by 21.1 points | View → |
| Arkansas | 76.6% | 56.2% | +20.4 | AT&T by 20.4 points | View → |
| California | 57.3% | 51.4% | +5.9 | AT&T ahead 5.9, inside the 4.8% water | View → |
| Colorado | 68.6% | 50.7% | +17.9 | AT&T by 17.9 points | View → |
| Connecticut | 84.3% | 78.7% | +5.6 | AT&T ahead 5.6, inside the 12.6% water | View → |
| Delaware | 78.1% | 73.7% | +4.4 | Too close (AT&T +4.4) | View → |
| District of Columbia | 99.2% | 99.7% | -0.5 | Too close (T-Mobile +0.5) | View → |
| Florida | 69.7% | 58.1% | +11.6 | AT&T ahead 11.6, inside the 24.9% water | View → |
| Georgia | 84.5% | 62.5% | +22 | AT&T by 22 points | View → |
| Hawaii | 37.1% | 30.7% | +6.4 | AT&T ahead 6.4, inside the 41.5% water | View → |
| Idaho | 45% | 40% | +5 | AT&T ahead 5, inside the 1.1% water | View → |
| Illinois | 93% | 83.6% | +9.4 | AT&T by 9.4 points | View → |
| Indiana | 93.5% | 83.3% | +10.2 | AT&T by 10.2 points | View → |
| Iowa | 75.3% | 93.1% | -17.8 | T-Mobile by 17.8 points | View → |
| Kansas | 89.3% | 84.9% | +4.4 | Too close (AT&T +4.4) | View → |
| Kentucky | 74% | 60.8% | +13.2 | AT&T by 13.2 points | View → |
| Louisiana | 80.9% | 62.4% | +18.5 | AT&T ahead 18.5, inside the 17.5% water | View → |
| Maine | 33% | 31.5% | +1.5 | Too close (AT&T +1.5) | View → |
| Maryland | 75.2% | 71.9% | +3.3 | Too close (AT&T +3.3) | View → |
| Massachusetts | 72.4% | 66.2% | +6.2 | AT&T ahead 6.2, inside the 26.1% water | View → |
| Michigan | 49.7% | 36.3% | +13.4 | AT&T ahead 13.4, inside the 41.5% water | View → |
| Minnesota | 90.6% | 69.5% | +21.1 | AT&T by 21.1 points | View → |
| Mississippi | 85.3% | 64.5% | +20.8 | AT&T by 20.8 points | View → |
| Missouri | 85.9% | 68.8% | +17.1 | AT&T by 17.1 points | View → |
| Montana | 42.8% | 44.3% | -1.5 | Too close (T-Mobile +1.5) | View → |
| Nebraska | 73.8% | 75.1% | -1.3 | Too close (T-Mobile +1.3) | View → |
| Nevada | 52% | 30.5% | +21.5 | AT&T by 21.5 points | View → |
| New Hampshire | 75.9% | 63.6% | +12.3 | AT&T by 12.3 points | View → |
| New Jersey | 84.8% | 74.3% | +10.5 | AT&T ahead 10.5, inside the 15.6% water | View → |
| New Mexico | 71.2% | 56.8% | +14.4 | AT&T by 14.4 points | View → |
| New York | 71.4% | 51.9% | +19.5 | AT&T by 19.5 points | View → |
| North Carolina | 76.5% | 68% | +8.5 | AT&T ahead 8.5, inside the 9.7% water | View → |
| North Dakota | 93.4% | 81.4% | +12 | AT&T by 12 points | View → |
| Ohio | 87.7% | 75.9% | +11.8 | AT&T ahead 11.8, inside the 8.8% water | View → |
| Oklahoma | 84.9% | 83.1% | +1.8 | Too close (AT&T +1.8) | View → |
| Oregon | 54.3% | 37.6% | +16.7 | AT&T by 16.7 points | View → |
| Pennsylvania | 80% | 65.5% | +14.5 | AT&T by 14.5 points | View → |
| Rhode Island | 69.3% | 68.2% | +1.1 | Too close (AT&T +1.1) | View → |
| South Carolina | 87.7% | 72.5% | +15.2 | AT&T by 15.2 points | View → |
| South Dakota | 89.6% | 71.8% | +17.8 | AT&T by 17.8 points | View → |
| Tennessee | 79.4% | 63.1% | +16.3 | AT&T by 16.3 points | View → |
| Texas | 84.1% | 72.3% | +11.8 | AT&T by 11.8 points | View → |
| Utah | 58.7% | 44.6% | +14.1 | AT&T by 14.1 points | View → |
| Vermont | 63.7% | 44.1% | +19.6 | AT&T by 19.6 points | View → |
| Virginia | 66.4% | 59.4% | +7 | AT&T ahead 7, inside the 7.7% water | View → |
| Washington | 55.2% | 50.7% | +4.5 | Too close (AT&T +4.5) | View → |
| West Virginia | 49.4% | 41.9% | +7.5 | AT&T by 7.5 points | View → |
| Wisconsin | 63.5% | 59.9% | +3.6 | Too close (AT&T +3.6) | View → |
| Wyoming | 53.7% | 43.2% | +10.5 | AT&T by 10.5 points | View → |
Where AT&T's lead over T-Mobile is widest
AT&T's biggest margins over T-Mobile, net of water, are in Alabama, Nevada, Arizona, Georgia and Arkansas.
| State | AT&T | T-Mobile | Margin | Water | |
|---|---|---|---|---|---|
| Alabama | 81.9% | 57.6% | +24.3 | 3.4% | View → |
| Nevada | 52% | 30.5% | +21.5 | 0.6% | View → |
| Arizona | 62.8% | 41.7% | +21.1 | 0.3% | View → |
| Georgia | 84.5% | 62.5% | +22 | 2.9% | View → |
| Arkansas | 76.6% | 56.2% | +20.4 | 2.3% | View → |
Where T-Mobile's lead over AT&T is widest
T-Mobile's biggest margins over AT&T, net of water, are in Iowa.
| State | T-Mobile | AT&T | Margin | Water | |
|---|---|---|---|---|---|
| Iowa | 93.1% | 75.3% | +17.8 | 0.7% | View → |
The states with no clear leader
In 12 states the two carriers are within 5 points of each other: Alaska, Delaware, District of Columbia, Kansas, Maine, Maryland, Montana, Nebraska, Oklahoma, Rhode Island, Washington and Wisconsin.
In 12 more the raw gap is 5 points or wider but inside the state's water share: California, Connecticut, Florida, Hawaii, Idaho, Louisiana, Massachusetts, Michigan, New Jersey, North Carolina, Ohio and Virginia.
Does the order hold in a moving car?
On in-car 4G LTE, under the same rule, AT&T leads in 35 states, T-Mobile in 1, and 15 have no clear leader. Nowhere does the in-car leader contradict the outdoor one.