Department of Defense
High Performance Computing Modernization Program

IPv6 Cell Phones

Internet Protocol version 6 (IPv6) is supported on cell phones running:

Android 5.0 or later,
Apple iOS 4.1 or later, and
Microsoft Windows 10 Mobile or later

(and some older operating systems such as:

Microsoft Windows Phone 7, 8, and 8.1,
Symbian v7, and
Blackberry 10). 

Cell phones not listed above that support a Long Term Evolution (LTE) communications protocol also support IPv6. Cell phones running Android 4.3 or later come with the 464xlat (a widely supported IPv6 transition mechanism) built-in, although support for Dynamic Host Configuration Protocol for IPv6 (DHCPv6) is still missing. Cell phones running Microsoft Windows Phone 8.1 and Microsoft Windows 10 Mobile or later even come with 464xlat and DHCPv6 built-in.

Apps on Apple iOS 9 (or later) on Apple's App Store Social Networking web page must be compatible with IPv6 DNS64/NAT64 networks and also must support IPv6-only networking.

Whether IPv6 on a particular device is enabled and which interface(s) support IPv6 (Wi-Fi or cellular or both) is determined by the individual wireless carrier.

IPv6 Support by National US Wireless Carriers

All national United States (US) wireless carriers have deployed IPv6 across their wireless networks:

T-Mobile USA, Inc.,
Cellco Partnership d/b/a Verizon Wireless (a subsidiary of Verizon Communications, Inc.),
Sprint Corp. (Sprint Corp. and T-Mobile USA, Inc. have been in the process of merging since early 2018. 
   If/when the merger is completed, the resulting company will be called T-Mobile USA, Inc.), and
AT&T Wireless (also known as AT&T Mobility LLC, previously known as Cingular Wireless and BellSouth).

For each national US wireless carrier, a statement of IPv6 support is available -- click on the name of the national US wireless carrier. All national US wireless carriers are facilities-based carriers. That is, they own and manage the network equipment used to provide wireless communications services.

IPv6 support by Regional US Wireless Carriers

The approximately 70 regional US wireless carriers are also facilities-based carriers. None of them have released public statements about IPv6 support on their networks.

When a regional US wireless carrier that appears on this list of Autonomous System Numbers (ASN) maintained by Hurricane Electric displays a non-zero number in the Routes v6 column for any entry for that carrier (there may be more than one entry for a given carrier), it can be inferred that the company supports IPv6 or is working toward supporting IPv6. For example, United States Cellular Corporation d/b/a U.S. Cellular (also known as US Cellular or United States Cellular Telephone Company), a regional US wireless carrier that is larger than any of the other regional US wireless carriers, displays a zero in the Routes v6 column for each of its entries in the list and consequently does not support IPv6.

Since all cell phones that support an LTE communications protocol support IPv6, and all regional US wireless carriers (except for those in American Samoa) support an LTE protocol, regional US wireless carriers may support IPv6 in the future.

IPv6 support by US Mobile Virtual Network Operators (MVNOs)

There are over 100 US MVNOs that are not facilities-based. Instead, they resell wireless services (including IPv6 support) provided by the above nationwide US wireless carriers. Some US MVNOs are owned by nationwide US wireless carriers or by Internet Service Providers such as CenturyLink Business Inc., Charter Communications, or Comcast Corp.

Return to the IPv6 FAQ page.