Philip Linse, CenturyLink North American Numbering Council (NANC) Contract Oversight Subcommittee A subcommittee of the Numbering Administration Oversight Working Group June 20, 2019 Co-Chairs: Betty Sanders, Charter Philip Linse, CenturyLink

Contract Oversight Subcommittee (COSC) Activity Subcommittee Activities: Monthly Review of Deliverables B&C Agent Monthly Review of Deliverables NANPA/PA Reassigned Numbers Database (RND) Ongoing Technical Requirements Document (TRD) development (See Page 4) NANPA & PA Change Orders: NANPA “A”, and PA “A” NAS/PAS form updates that will facilitate efficient Guidelines administration and streamline eventual transition to a NANPA/PA unified system COSC Recommended Approval (April 28, 2019) 2019-2020 Contribution Factor Recommendation (See Pages 5-7)

Area of Responsibility Mission:  The Numbering Administration Oversight Working Group oversees the activities and reviews the performances of the Numbering Administrators, including the North American Numbering Plan Administrator (NANPA), the Pooling Administrator (PA), and the NANP Billing and Collection Agent, through the assistance of the Contract Oversight Subcommittee  FCC contract oversight of the following Vendors Billing & Collections (B&C) Agent – Welch LLC Bills and Collects from the Telecommunications industry for payment for the functions of the B&C Agent, NANPA and PA Vendors North American Numbering Administration (NANPA) – Somos Administers the allocation of the North American Numbering Plan (NANP) numbering resources Pooling Administration (PA) – Somos Administers the allocation of 1,000 Block Number Pooling This contract also includes the Routing Number Administration (RNA) for P-ANI numbering resources

Reassigned Numbers Database (RND)   FCC 18-177, December 13, 2018, Second Report And Order (Reassigned Numbers Database Order) US Federal Government Shutdown December 22, 2018 through January 25, 2019 RND Technical Requirements Document (TRD) development FCC kick-off on February 19, 2019 Parallel efforts to complete report pursuant to National Suicide Hotline Improvement Act (May 24, 2019) and the Report on the Proposals to Implement Nationwide Number Portability (May 8, 2019) Twenty seven, two hour meetings, twice weekly since February 2019 NANC Chair & NAOWG Chair request for extension to complete the work to develop the technical and operational requirements report. (April 30, 2019) DA 19-554, June 12, 2019, CGB & WCB granted request for an extension of time filed by the North American Numbering Council until September 13, 2019 and a progress report by July 12, 2019

Budget/Contribution Factor October 2019 – September 2020 The options provided, funds the deficit that resulted from unexpected transition of NANPA contract in November 2018 and subsequent cost of transition to a bridge contract. The budget also includes the anticipated potential costs for transition of bridge contract to a subsequent contract. The contingency fund was determined based upon consideration of potential change orders as well as contract uncertainty and potential base contract rate increase. 2019-2020:  Balance to be funded is: $9,178,803 Net US Carrier Contribution requirement: $11,178,803 This includes a $2M contingency fund Revenue base (estimate) – $123,150,183,000 Contribution factor – 0.0000908 Prior year (2018-2019): Revenue base (Actual) – $ 131,882,809,242 Contribution factor – 0.0000427

Budget/Contribution Factor Continued October 2019 – September 2020 The following considerations are not included in the recommended budget and contribution factor for October 2019-September 2020, but service providers should be aware of these anticipated costs in the future and plan accordingly:   Cost of RND development (Order suggests $32,400, but otherwise unknown until Contract Award) Cost of combining NANPA and PA systems (unknown until Contract Award) Cost of combined NANPA/PA annual operations (unknown until Contract Award, but anticipated to be less than current NANPA and PA contract rates combined) Cost of vendor study to allocate combined NANPA contract cost among international entities (US, Canada, and Caribbean) Resulting costs allocation adjustment determined based upon study results

History of NANP Fund Size and Contribution Factor

Contract Status NANPA: Somos 12 month Bridge Contract effective November 1, 2018 2 Month Transition Completed as of January 1st 2019 PA: B&C Agent: The contract awarded in April 2018 and is a 5 year contract beginning May 1st 2018

Contract Oversight Subcommittee (COSC) Membership COSC Voting Members: COSC Non-Voting Members: ACA AT&T Bandwidth CenturyLink Charter Cox NASUCA Sprint Verizon Washington PUC T-Mobile

Future Meetings/Contact Information Jul 25 Aug 29 Contact the Co-Chairs for complete meeting or conference call details betty.sanders@charter.com or philip.linse@centurylink.com