All of Tier 2 DSL technical support has been outsourced as of 2/26/2016. Both Richardson TX and San Ramon CA have been closed. If you have a legacy DSL lan/wan, good luck getting help from these outsourced centers. Here is a site that shows last years (NIC) National Internet Contract layoff that affected 93 tier 2 agnets or 204 total agents.
http://www.cwalocal4250.org/assets/article_resource/pdf/a_1450197059-9956_2.pdf