Black Wireless APN Settings for iPhone iPad

My Black Wireless USA Manual 4G Internet and MMS Settings for iPhone X XPlus 8 8Plus 7 Plus 7S  6S 6 5 4S iPad

iPhone APN for Black Wireless

In your Apple iPhone go to Settings -> Cellular -> Cellular Data Network -> APN. and enter the following details

Cellular Data:
APN: Reseller (or) att.mvno
Username: Blank
Password: Blank
LTE Setup(Optional):
APN: Blank
Username: Blank
Password: Blank
MMS:
APN: Reseller (or) att.mvno
Username: blank
Password: blank
MMSC : http://mmsc.mobile.att.net
MMS Proxy:  proxy.mobile.att.net:80
MMS Message Size: 1048576
MMS UA Prof URL: blank