United States
HSDPA
LTE

AT&T APN settings for Microsoft Lumia 950 XL Dual SIM

      AT&T   Microsoft Lumia 950 XL Dual SIM   Windows

Microsoft Lumia 950 XL Dual SIM is compatible with AT&T HSDPA and AT&T LTE.

To configure AT&T APN settings with Microsoft Lumia 950 XL Dual SIM follow below steps. Microsoft Lumia 950 XL Dual SIM maximum data transter speed with AT&T is 102/51 Mbps.

AT&T Internet & MMS APN settings

Go to App list, tap Settings Network & Wireless Cellular & SIM

In Cellular, select your SIM card
Select Properties

Under Internet APN select Add an Internet APN

Profile name: AT&T 2
APN: phone
User name:
Password:
Type of sign-in info: None
IP type: IPv4

Enable Use this APN for LTE and replace the one from my mobile operator


Proxy server (URL):
Proxy port:

Tap Save


In Cellular, select your SIM card
Select Properties
Under MMS APN select Add an MMS APN

Profile name: AT&T 2
APN: phone
User name:
Password:
Type of sign-in info: None
IP Type: IPv4
Proxy server: proxy.mobile.att.net
Proxy port: 80
MMSC (URL): http://mmsc.mobile.att.net/
MMSC port:
Maximum MMS size (KB): 2048

Tap Save.


If the above AT&T Internet & MMS APN settings do not work on your Lumia 950 XL Dual SIM, make below changes to AT&T Internet & MMS APN settings to get Cingular 380 ATT on your Microsoft Lumia 950 XL Dual SIM.

APNproxy
MMSC (URL)http//mmsc.cingular.com/
MMS APN: Proxy serverwireless.cingular.com
MMS APN: Proxy portblank
IP typeIPv4

If the above AT&T Internet & MMS APN settings too do not work on your Lumia 950 XL Dual SIM, make below changes to AT&T Internet & MMS APN settings to get ATT Phone on your Microsoft Lumia 950 XL Dual SIM.

MMSC (URL)http//mmsc.mobile.att.net
IP typeIPv4

If the above AT&T Internet & MMS APN settings too do not work on your Lumia 950 XL Dual SIM, make below changes to AT&T Internet & MMS APN settings to get ATT WAP on your Microsoft Lumia 950 XL Dual SIM.

APNwap.cingular
MMSC (URL)http//mmsc.cingular.com/
MMS APN: Proxy serverwireless.cingular.com
MMS APN: Proxy portblank
IP typeIPv4

If the above AT&T Internet & MMS APN settings too do not work on your Lumia 950 XL Dual SIM, make below changes to AT&T Internet & MMS APN settings to get For unlocked non AT&T devices on your Microsoft Lumia 950 XL Dual SIM.

APNNXTGENPHONE
MMSC (URL)http//mmsc.mobile.att.net

If the above AT&T Internet & MMS APN settings too do not work on your Lumia 950 XL Dual SIM, make below changes to AT&T Internet & MMS APN settings to get Net 10 ATT 4G LTE on your Microsoft Lumia 950 XL Dual SIM.

APNtfdata
MMSC (URL)http//mmsc.mobile.att.net
Type of sign-in infoPAP

If the above AT&T Internet & MMS APN settings too do not work on your Lumia 950 XL Dual SIM, make below changes to AT&T Internet & MMS APN settings to get Net 10 via AT&T on your Microsoft Lumia 950 XL Dual SIM.

APNRESELLER
MMSC (URL)http//mmsc.mobile.att.net
IP typeIPv4

If the above AT&T Internet & MMS APN settings too do not work on your Lumia 950 XL Dual SIM, make below changes to AT&T Internet & MMS APN settings to get Net 10 via AT&T Tracfone on your Microsoft Lumia 950 XL Dual SIM.

APNtftdata
MMSC (URL)http//mmsc.mobile.att.net
Type of sign-in infoPAP
IP typeIPv4

Straight Talk for AT&T APN Settings

Go to App list, tap Settings Network & Wireless Cellular & SIM

In Cellular, select your SIM card
Select Properties

Under Internet APN select Add an Internet APN

Profile name: AT&T 2
APN: tfdata
User name:
Password:
Type of sign-in info: None
IP type: IPv4

Enable Use this APN for LTE and replace the one from my mobile operator


Proxy server (URL):
Proxy port:

Tap Save


In Cellular, select your SIM card
Select Properties
Under MMS APN select Add an MMS APN

Profile name: AT&T 2
APN: tfdata
User name:
Password:
Type of sign-in info: None
IP Type: IPv4
Proxy server: mms3.tracfone.com
Proxy port: 80
MMSC (URL): http://mms-tf.net
MMSC port:
Maximum MMS size (KB): 2048

Tap Save.


For Microsoft Lumia 950 XL Dual SIM, when you type AT&T APN settings, make sure you enter APN settings in correct case. For example, if you are entering AT&T Internet & MMS APN settings make sure you enter APN as phone and not as PHONE or Phone. If entering Straight Talk for AT&T APN Settings above to your Microsoft Lumia 950 XL Dual SIM, APN should be entered as tfdata and not as TFDATA or Tfdata.

Microsoft Lumia 950 XL Dual SIM compatibility with AT&T

Microsoft Lumia 950 XL Dual SIM is compatible with below network frequencies of AT&T.

3G
HSDPA850 MHz, 1900 MHz
4G
LTEBand 12 700 MHz, Band 17 700 MHz
Band 4 1700/2100 MHz, Band 2 1900 MHz, Band 5 850 MHz, Band 40 2300 MHz*
*These frequencies of AT&T may not have countrywide coverage for Microsoft Lumia 950 XL Dual SIM.

Explain Microsoft Lumia 950 XL Dual SIM compatibility with AT&T

AT&T 3G APN with Microsoft Lumia 950 XL Dual SIM

Microsoft Lumia 950 XL Dual SIM supports AT&T 3G on HSDPA 850 MHz and 1900 MHz.

AT&T 4G LTE APN with Microsoft Lumia 950 XL Dual SIM

Microsoft Lumia 950 XL Dual SIM supports AT&T 4G on LTE Band 12 700 MHz and Band 17 700 MHz.
It will also support AT&T 4G on LTE Band 4 1700/2100 MHz, Band 2 1900 MHz, Band 5 850 MHz and Band 40 2300 MHz only in some areas of United States.

Overall compatibililty of Microsoft Lumia 950 XL Dual SIM with AT&T is 100%. The compatibility of Microsoft Lumia 950 XL Dual SIM with AT&T, or the AT&T network support on Microsoft Lumia 950 XL Dual SIM we have explained here is only a technical specification match between Microsoft Lumia 950 XL Dual SIM and AT&T network. Even Microsoft Lumia 950 XL Dual SIM is listed as compatible here, AT&T network can still disallow (sometimes) Microsoft Lumia 950 XL Dual SIM in their network using IMEI ranges. Therefore, this only explains if AT&T allows Microsoft Lumia 950 XL Dual SIM in their network, whether Microsoft Lumia 950 XL Dual SIM will work properly or not, in which bands Microsoft Lumia 950 XL Dual SIM will work on AT&T and the network performance between AT&T and Microsoft Lumia 950 XL Dual SIM. To check if Microsoft Lumia 950 XL Dual SIM is really allowed in AT&T network please contact AT&T support. Do not use this website to decide to buy Microsoft Lumia 950 XL Dual SIM to use on AT&T.

Max download & upload speeds on AT&T 4G for Microsoft Lumia 950 XL Dual SIM per LTE band

Band 2 1900 102 Mbps 51 Mbps
Band 4 1700 102 Mbps 51 Mbps
Band 5 850 102 Mbps 51 Mbps

Microsoft Lumia 950 XL Dual SIM network specifications

OS Microsoft Windows 10
Network bands GSM / HSPA / LTE
Speed HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Network frequencies GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 20(800), 28(700), 38(2600), 40(2300)
See full specs at GSM.COOL... Select a different device... Select a different network...