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Definition and explanation of access point names (APNs)

Updated on January 30, 2022

An access point name (APN) on mobile phones establishes a connection vĩ đại the gateway between the carrier's network and the mạng internet. The APN finds the IP address that the device is identified with on the network, determines if a private network is needed, chooses the correct security settings, and more.

The APN for T-Mobile is fast.tmobile.com for 4G LTE devices. An older one is wap.voicestream.com, and the T-Mobile Sidekick APN is hiptop.voicestream.com. The APN name for AT&T smartphones is NXTGENPHONE, modems and netbooks is isp.cingular, for all smartwatches it's Phone, and the AT&T all tablets and mobile broadband is broadband. The APN for Verizon is vzwinternet for mạng internet connections and vzwims for text messaging.

APN may stand for other things, too, even if they have nothing vĩ đại bởi with mobile phones, such as Advanced Practice Nurse.

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The Different APN Settings

APN settings usually include several specific configuration nodes:

  • APN: In the U.S., the APN name is often wholesale.
  • APN type: Generic, supl, mms, and wap are the four APN types.
  • MMSC: Multimedia Messaging Service is only necessary when using MMS. It's a requirement on most mobile virtual network operators that use MMS.
  • Proxy: Some mobile carriers use this setting vĩ đại phối up a proxy between the network and the mạng internet, much lượt thích a proxy on a computer.
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Switch APNs

Typically, APN is auto-configured or auto-detected for your phone or tablet, which means you don't need vĩ đại make any changes vĩ đại the APN settings.

Wireless carriers use different pricing for different APNs. Switching from one carrier vĩ đại another can change you from one type of data plan vĩ đại another. It can also cause problems and additional charges on your wireless bill, sánh changing the APN isn't advised.

However, there are a few reasons vĩ đại switch or modify the APN:

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  • The APN settings are not correct and give an error message that it could not activate a cellular data network.
  • You have an unlocked phone and want vĩ đại use it with a different carrier.
  • You're on a prepaid plan and don't want vĩ đại get charged for data usage or vĩ đại avoid data usage overages..
  • You're traveling outside of your wireless provider's service area and want vĩ đại avoid data roaming charges.

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