[AT&T LG G2] Scott:
It shouldnt be lost, but it may be hidden.

I used the APN file from the T-Mo ROM with no changes at all...

<?xml version="1.0" encoding="utf-8"?>
<!--
/*
** Copyright 2006, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
-->

<!-- use empty string to specify no proxy or port -->

<!-- If you edit this version, also edit the version in the partner-supplied
apns-conf.xml configuration file -->
<apns version="7">

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="160"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="160"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="160"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="200"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="200"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="200"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="210"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="210"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="210"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="220"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="220"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="220"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="230"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="230"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="230"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="240"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="240"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="240"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="250"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="250"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="250"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="260"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="260"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="260"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="270"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="270"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="270"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="300"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="300"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="300"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="310"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="310"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="310"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="490"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="490"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="490"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="530"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="530"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="530"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="580"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="580"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="580"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="590"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="590"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="590"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="640"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="640"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="640"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="660"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="660"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="660"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="800"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="800"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="800"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="26"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="26"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="26"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="T-Mobile LTE"
mcc="310"
mnc="21"
apn="fast.t-mobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc"
mmsproxy=""
mmsport=""
type="default,mms,supl"
preferapp="" />

<apn carrier="T-Mobile Tethering"
mcc="310"
mnc="21"
apn="pcweb.tmobile.com"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="dun"
preferapp="" />

<apn carrier="T-Mobile IMS"
mcc="310"
mnc="21"
apn="ims"
user=""
password=""
authtype="0"
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="ims"
protocol="IPV6"
preferapp="" />

<apn carrier="LGE DEFAULT"
mcc="450"
mnc="00"
apn="qe"
user="lge"
password="lge"
authtype="1"
server=""
proxy=""
port=""
mmsc="http://203.229.247.19/mm1"
mmsproxy="203.229.247.28"
mmsport="8000"
type="default,mms,supl"
defaultflag="0"
preferapp="" />

<apn carrier="LGE 2G 3G IPv6 Only"
mcc="450"
mnc="00"
apn="iv6"
authtype="0"
user=""
password=""
server=""
proxy=""
port=""
mmsc=""
mmsproxy=""
mmsport=""
type="default"
protocol="IPV6"
defaultflag="0"
preferapp="" />

</apns>