Some Verizon FIOS subscribers in DFW blocked from tcp80/443 to regional higher-eds

Our help desk has fielded dozens of calls from Verizon FIOS subscribers in the Dallas/Ft Worth area. Traceroutes from Verizon subscribers make it to campus, and traceroutes from campus make it to the subscribers' IP addresses. One subscriber can hit some of our websites, another subscriber can hit none. The outage is inconsistent, as if some kind of deep-packet inspection is in play. My upstream tells me we're not the only higher-ed affected. Any advice on how to get hold of Verizon NOC? -- Regards, Jeff a.k.a. jeff (underscore) wilson (at) baylor (dot) edu AS 30674