AT&T GoPhone
GoPhone SIM Card Kit (Phone)が$9.99
$60でUnlimited Talk & Text + 2.5GB Data 追加は$10で1GB
$45でUnlimited Talk & Text + 1GB Data 追加は$10で500MB
New GoPhone Plans with Unlimited Text to Mexico, Canada, and over 100 Other Countries
Verizon
$49.99
$45のUnlimited Talk & Text + 500MB Data付き
$20で3GB追加可能
4G SIM Activation Kit - Verizon Wireless
Prepaid Smartphone Plans | Verizon Wireless
モバイルホットスポットのJetpackプランは$90で10GB
Prepaid Jetpack | Verizon Wireless
T-Mobile
$15でSIMカード
$80でUnlimited Talk, Text, Data
$60でUnlimited Talk, Text, Data。 4Gは3GBまで
SIM Card details from T-Mobile
Prepaid Phone Plans | Best Prepaid Cell Phone Plans | T-Mobile
小さい字で
Smartphone Mobile HotSpot tethering included up to the data limits on the $50, $60, and $70 plan options. The $80 plan option includes 5GB of Smartphone Mobile HotSpot tethering service.
と書いてあるので注意。