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.

As part of a broad industry effort to support IPv6 on cell phones (as described in this article), beginning in 2016 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 Nationwide US Wireless Carriers

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

T-Mobile US, Inc. and their subsidiary Metro by T-Mobile (formerly MetroPCS),
Cellco Partnership d/b/a Verizon Wireless (a subsidiary of Verizon Communications, Inc.) and
   their subsidiary Visible,
Sprint Corp. (previously known as Sprint Nextel Corp.) and their subsidiaries Boost Mobile and
   Virgin Mobile (Virgin Mobile ceased operation in February 2020), and
AT&T Wireless (also known as AT&T Mobility LLC and AT&T U.S. Mobility, previously known as
   Cingular Wireless and BellSouth) and their subsidiary Cricket Wireless.

T-Mobile US, Inc. and Sprint Corp. began the process of merging in early 2018 and completed it in early 2020. The merged company is now called T-Mobile US, Inc. As part of the merger, Boost Mobile was sold to Dish Network, which is now the fourth nationwide US wireless carrier.

For each nationwide US wireless carrier, a statement of IPv6 support is available -- click on the name of any nationwide US wireless carrier. All nationwide 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 these carriers have released public statements about IPv6 support on their networks except for Silver Star Communications. 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, all regional US wireless carriers may support IPv6 sometime in the future.

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.

The following regional US wireless carriers display at least one non-zero number in the Routes v6 column, so it can be inferred that they either already support IPv6 but have not (yet) released a public statement about IPv6 support on their network or are working toward supporting IPv6: Bluegrass Cellular. Bug Tussel Wireless, Evolve Broadband, Inland Cellular, Limitless Mobile, Nemont, Nex-Tech, Pioneer Cellular, West Central Wireless, and TelAlaska.

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.