| Core Routers |
| core1.56mar.sox.net (Atlanta, GA) | core1.sidco.sox.net (Nashville, TN) | core2.56mar.sox.net (Atlanta, GA) |
| core3.56mar.sox.net (Atlanta, GA) | rtr.125meyers.sox.net (Charlotte, NC) | rtr.365dc.sox.net (Nashville, TN) |
| rtr.codac.sox.net (Atlanta, GA) | rtr.msmdc.sox.net (Atlanta, GA) |