IMPORTANT INSTRUCTIONS AND INFORMATION: With this FCC Form 470 CENIC is procuring lit or managed circuits and optional dark fiber segments for middle mile connections for the K12 High Speed Network. CENIC is seeking data transmission services only and not Internet access services. Note that in order to receive addresses for CalREN hub sites, bidders must complete Exhibit A CENIC NDA and return to 2027K12RFP@cenic.org unless they already have a current NDA on file. All questions are to be submitted in writing to 2027K12RFP@cenic.org. Frequently asked questions are posted at CENICs website at the following URL: https://cenic.org/publications/2027k12noderfp. Note that the quantities listed on this FCC Form 470 are best estimates. Final quantities ordered will depend on the available bandwidths and final network configurations. Exhibit D lists the A and Z locations for which E-rate eligible pricing and solutions are requested as well as indicates desired bandwidths. Broadband services SHALL consist of one of the following or equivalent: (1) Metro Ethernet service (MEF standards compliant) at the CIRs requested, (2) dedicated lit DWDM-based or direct-fiber-based point-to-point at Gigabit (1,000 Mb/s), 10 Gigabit (10,000 Mb/s), 100 Gigabit (true 100GbE not 10x10GbE) (100,000 Mb/s), or 400 Gigabit (true 400GbE not 4x100GbE (400,000 Mb/s), or (3) a pair of single mode dark fibers (Optional), connecting each site to the specified location on Exhibit D. Note that some of the bandwidths requested may exceed the maximum currently available in the FY 2027 FCC Form 470 dropdown selections which currently lists the maximum as 100 Gbps. If discounts are available for ordering multiple circuits, please indicate the discounted rates under the Multiple Bandwidth sections in Exhibit D. CENIC plans to post a separate Form 470 and RFP for Category One network equipment for all of its segments. For the convenience of sorting and evaluation, responses MUST be submitted using the Pricing Worksheet (Exhibit D) and responses cannot be in PDF or locked spreadsheets. SPAM and/or robotic responses will not be considered valid bid responses and will be disqualified from consideration. Bidders are to carefully review the Request for Proposal documents and exhibits for all minimum bidding requirements, terms and conditions, bid disqualification factors, and deadlines associated with this procurement. Refer to attached RFP Documents: Request For Proposal 2nd K12 Node Exhibit A: Nondisclosure Agreement Exhibit B: CENIC Hub Site List (must have a current NDA on file. This Exhibit may be returned signed by emailing 2027k12rfp@cenic.org Exhibit C: Reporting Requirements for Federal and State Discounts Exhibit D: Circuit Pricing Worksheet Exhibit E: Required Information for Special Construction for USAC Program Integrity Review provided for reference only

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