I had IPv6 from TWC, then for a month or so before the merger it went MIA, and then about a month after the merger it was back. For some reason I get a more reliable path to my IPv6 gateway than IPv4, so I missed it quite a bit.

Spectrum/TWC has had IPv6 via DHCPv6 with prefix delegation for a few years in Louisville, but only with a select set of modems. A Juniper DOCSIS 3 wouldn't work for me while a Motorola had no trouble.

I wonder if it's a regional thing? A friend of mine has spectrum from Charter (formerly Bresnan in this case) and he gets ipv6.