United States
HSDPA
LTE
50%

AT&T APN settings for Asus Zenfone 3s Max ZC521TL

      AT&T   Asus Zenfone 3s Max ZC521TL   Android

Asus Zenfone 3s Max ZC521TL is compatible with AT&T HSDPA and AT&T LTE 50%.

To configure AT&T APN settings with Asus Zenfone 3s Max ZC521TL follow below steps. Asus Zenfone 3s Max ZC521TL maximum data transter speed with AT&T is 102/51 Mbps.

AT&T Internet & MMS APN settings

Go to Settings Connections Mobile networks Access Point Names in your Asus Zenfone 3s Max ZC521TL app drawer.

Add a new APN by pressing  on right top corner. If device has already set values for AT&T 2 for any fields below leave them as they are (MCC, MNC etc). Change other fields as below.

Name: AT&T 2
APN: phone
Proxy:
Port:
Username:
Password:
Server:
MMSC: http://mmsc.mobile.att.net/
MMS proxy: proxy.mobile.att.net
MMS port: 80
MCC: 310
MNC: 410
Authentication type: None
APN type: default,mms,supl,hipri,fota
APN protocol: IPv4
APN roaming protocol: IPv4
Bearer: LTE
APN PPP phone number: Not set

Please be sure to set Bearer to LTE to enjoy high data transfer speeds with AT&T. Now restart your Asus Zenfone 3s Max ZC521TL to apply new AT&T APN settings.

If the above AT&T Internet & MMS APN settings do not work on your Zenfone 3s Max ZC521TL, make below changes to AT&T Internet & MMS APN settings to get Cingular 380 ATT on your Asus Zenfone 3s Max ZC521TL.

APNproxy
MMSChttp://mmsc.cingular.com/
MMS proxywireless.cingular.com
MMS portblank
APN typedefault,supl,mms
APN protocolIPv4

If the above AT&T Internet & MMS APN settings too do not work on your Zenfone 3s Max ZC521TL, make below changes to AT&T Internet & MMS APN settings to get ATT Phone on your Asus Zenfone 3s Max ZC521TL.

MMSChttp://mmsc.mobile.att.net
APN typedefault,mms,supl,fota
APN protocolIPv4

If the above AT&T Internet & MMS APN settings too do not work on your Zenfone 3s Max ZC521TL, make below changes to AT&T Internet & MMS APN settings to get ATT WAP on your Asus Zenfone 3s Max ZC521TL.

APNwap.cingular
MMSChttp://mmsc.cingular.com/
MMS proxywireless.cingular.com
MMS portblank
APN typedefault,supl,mms
APN protocolIPv4

If the above AT&T Internet & MMS APN settings too do not work on your Zenfone 3s Max ZC521TL, make below changes to AT&T Internet & MMS APN settings to get For unlocked non AT&T devices on your Asus Zenfone 3s Max ZC521TL.

APNNXTGENPHONE
MMSChttp://mmsc.mobile.att.net
APN typedefault,mms,supl,hipri

If the above AT&T Internet & MMS APN settings too do not work on your Zenfone 3s Max ZC521TL, make below changes to AT&T Internet & MMS APN settings to get Net 10 ATT 4G LTE on your Asus Zenfone 3s Max ZC521TL.

APNtfdata
MMSChttp://mmsc.mobile.att.net
APN typedefault,mms,supl,hipri
Authentication typePAP

If the above AT&T Internet & MMS APN settings too do not work on your Zenfone 3s Max ZC521TL, make below changes to AT&T Internet & MMS APN settings to get Net 10 via AT&T on your Asus Zenfone 3s Max ZC521TL.

APNRESELLER
MMSChttp://mmsc.mobile.att.net
APN typedefault,mms,supl
APN protocolIPv4

If the above AT&T Internet & MMS APN settings too do not work on your Zenfone 3s Max ZC521TL, make below changes to AT&T Internet & MMS APN settings to get Net 10 via AT&T Tracfone on your Asus Zenfone 3s Max ZC521TL.

APNtftdata
MMSChttp://mmsc.mobile.att.net
APN typedefault,mms,supl,hipri
Authentication typePAP
APN protocolIPv4

Straight Talk for AT&T APN Settings

Go to Settings Connections Mobile networks Access Point Names in your Asus Zenfone 3s Max ZC521TL app drawer.

Add a new APN by pressing  on right top corner. If device has already set values for AT&T 2 for any fields below leave them as they are (MCC, MNC etc). Change other fields as below.

Name: AT&T 2
APN: tfdata
Proxy:
Port:
Username:
Password:
Server:
MMSC: http://mms-tf.net
MMS proxy: mms3.tracfone.com
MMS port: 80
MCC: 310
MNC: 410
Authentication type: None
APN type:
APN protocol: IPv4
APN roaming protocol: IPv4
Bearer: LTE
APN PPP phone number: Not set

Please be sure to set Bearer to LTE to enjoy high data transfer speeds with AT&T. Now restart your Asus Zenfone 3s Max ZC521TL to apply new AT&T APN settings.

For Asus Zenfone 3s Max ZC521TL, 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 Asus Zenfone 3s Max ZC521TL, APN should be entered as tfdata and not as TFDATA or Tfdata.

AT&T MCC-MNC values

310-380
310-410

Asus Zenfone 3s Max ZC521TL compatibility with AT&T

Asus Zenfone 3s Max ZC521TL is compatible with below network frequencies of AT&T. Zenfone 3s Max ZC521TL has variants Global, Taiwan and India.

3G
HSDPAGlobal850 MHz, 1900 MHz
4G
LTETaiwanBand 4 1700/2100 MHz, Band 2 1900 MHz, Band 5 850 MHz*
  IndiaBand 5 850 MHz, Band 40 2300 MHz*
*These frequencies of AT&T may not have countrywide coverage for Asus Zenfone 3s Max ZC521TL.

Explain Asus Zenfone 3s Max ZC521TL compatibility with AT&T

Asus Zenfone 3s Max ZC521TL has modal variants Global, Taiwan and India.

AT&T 3G APN with Asus Zenfone 3s Max ZC521TL

Global

Asus Zenfone 3s Max ZC521TL Global supports AT&T 3G on HSDPA 850 MHz and 1900 MHz.

AT&T 4G LTE APN with Asus Zenfone 3s Max ZC521TL

Compatibility of Asus Zenfone 3s Max ZC521TL with AT&T 4G depends on the modal variants Taiwan and India.

Taiwan

Asus Zenfone 3s Max ZC521TL Taiwan supports AT&T 4G on LTE Band 4 1700/2100 MHz, Band 2 1900 MHz and Band 5 850 MHz only in some areas of United States.

India

Asus Zenfone 3s Max ZC521TL India supports AT&T 4G on LTE Band 5 850 MHz and Band 40 2300 MHz only in some areas of United States.

Overall compatibililty of Asus Zenfone 3s Max ZC521TL with AT&T is 67%. The compatibility of Asus Zenfone 3s Max ZC521TL with AT&T, or the AT&T network support on Asus Zenfone 3s Max ZC521TL we have explained here is only a technical specification match between Asus Zenfone 3s Max ZC521TL and AT&T network. Even Asus Zenfone 3s Max ZC521TL is listed as compatible here, AT&T network can still disallow (sometimes) Asus Zenfone 3s Max ZC521TL in their network using IMEI ranges. Therefore, this only explains if AT&T allows Asus Zenfone 3s Max ZC521TL in their network, whether Asus Zenfone 3s Max ZC521TL will work properly or not, in which bands Asus Zenfone 3s Max ZC521TL will work on AT&T and the network performance between AT&T and Asus Zenfone 3s Max ZC521TL. To check if Asus Zenfone 3s Max ZC521TL is really allowed in AT&T network please contact AT&T support. Do not use this website to decide to buy Asus Zenfone 3s Max ZC521TL to use on AT&T.

Max download & upload speeds on AT&T 4G for Asus Zenfone 3s Max ZC521TL per LTE band

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

Asus Zenfone 3s Max ZC521TL network specifications

OS Android 7.0 (Nougat)
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 / 1900 / 2100 - Global
LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 18(800), 19(800), 26(850), 28(700), 38(2600), 41(2500) - Taiwan
LTE band 1(2100), 3(1800), 5(850), 8(900), 40(2300) - India
See full specs at GSM.COOL... Select a different device... Select a different network...