The "Sprint", "Embarq", CenturyLink, and Telefonica modems/routers
Network Tallahassee distributes are manufactured by ZyXEL:
  http://www.zyxel.com

In most cases, the complete model number is printed on the bottom of the
DSL modem/router.  The CenturyLink/Embarq-branded ZyXEL DSL modem/router
they and we distribute labeled "660R Compact" or "EQ-660R" on the bottom
is the ZyXEL P-660R-D1 (Prestige 660R-D1).

The "P" at the beginning of ZyXEL modems represents the "Prestige" line of
ZyXEL products.  For example, the ZyXEL "Prestige 660R-D1" = "P-660R-D1".