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Comment by IgorPartola | Hacker News Reader

So if I grab a SIM card from T-Mobile or AT&T and put it in my iPhone, will I actually get an IPv6 address? What about Verizon and Sprint? This is actually a valid use case for me as a way to access stuff at home while I am remote.

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Yes. But since too many sites still are only reachable via IPv4, you either get also an IPv4 address (dual stack) or you get connectivity via NAT64/DNS64. The latter case means your phone cannot be reached from the outside via IPv4 (this is rarely needed on a phone, except when tethering a laptop, maybe).

I am well aware of all that. I have been deploying IPv6 sites for a while now. I was more curious if there was any movement towards mobile devices getting IPv6. I am stuck with AT&T for a month longer or so and so I was wondering which carries actually support what I need. Last I checked AT&T did not, but that was over a year ago.

VZW gives you an ipv6 address. I actually use a USB stick + vzw SIM for a backup internet connection via pfsense and it works well - ipv6 included.

I have seen IPv6 addresses allocated to some ATT UEs. Not sure what was the percentage. Go here from the handset and check again? http://test-ipv6.com

My VZW phone has been IPv6 primarily for at least 3 years. (Portland OR market, 4G LTE) Edit: To clarify, the phone also has IPv4, but starts with IPv6 and falls back.

Now if only I could get Comcast Business to support IPv6

Comcast business supports ipv6 at least where i am, both for static and dynamic ips.

Only barely. I supposedly get a /56 up here in Seattle, but prefix delegation will give me a /60 half the time and a "/59" half the time. The latter completely breaks every router I've thrown at it (pfsense, Cisco ASA, and tomatoUSB), and even with a supposedly-open support ticket I cannot get ahold of a Comcast Engineer for love nor money.

I've tried Verizon, AT&T, and T-Mobile. Verizon and T-Mobile give my phone IPv6 addresses while AT&T is IPv4 only. Only Verizon gives my tethered devices IPv6 addresses.

I believe I have received a IPv6 address from a tethered LG G3 with T-Mobile. Have not tested with a tethered iPhone or paid attention in a while.

For a single datapoint, my iPhone 6 running iOS 10 on AT&T does not seem to get an IPv6 address (it does on my home network, but not on AT&T LTE).

In my experience, for Verizon around the DC area, yes.

My AT&T iPhone gets a v4 address when I'm using my cellular data - but when I use my AT&T DSL connection, I get v6.

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