4 Colo. Code Regs. § 723-2-2702
Current through Register Vol. 48, No. 1, January 10, 2025
Section 4 CCR 723-2-2702 - Assignment of Telephone Numbers in Colorado(a) All providers with numbers assigned from the NPAs in the Colorado (303, 719, 970, 720, or any future NPAs assigned to Colorado) shall assign numbers from a single opened thousand block within an NXX before assigning telephone numbers from an uncontaminated thousand block.(b) Notwithstanding paragraph (a), a provider may assign telephone numbers in a thousand block different from the thousand block described in paragraph (a) if the available numbers in the opened thousand block are not sufficient to meet a specific customer request.(c) The Central Office Code Administrator and Pooling Administrator must perform their central office code administration and thousand block administration functions in such a manner as to support these rules.(d) Upon implementation of any number pooling between providers in Colorado, providers participating in pooling must make uncontaminated thousand blocks and thousand blocks with less than ten percent contamination available to the Pooling Administrator for possible reassignment to other providers in a number pooling process.(e) All providers that are required to be local number portability (LNP) capable pursuant to paragraph 2724(c) shall participate in number pooling for a particular geographic area when implemented by the Pooling Administrator.(f) All providers shall provide services in such a manner as not to encourage the inefficient use or depletion of telephone numbers in any Colorado NPA.(g) All VoIP providers authorized to request numbering resources directly from the Numbering Administrators must file a notice with the Commission at least 30 days before requesting numbers from the Numbering Administrators on a form provided by the Commission on its website.(h) All VoIP providers must maintain accuracy of all contact information and certification. If any contact information and certification is no longer accurate, the VoIP provider must file a correction with the Commission within 30 days of the change.39 CR 21, November 10, 2016, effective 12/1/201640 CR 15, August 10, 2017, effective 9/1/201741 CR 03, February 10, 2018, effective 3/2/201842 CR 02, January 25, 2019, effective 2/14/201942 CR 07, April 10, 2019, effective 4/30/201943 CR 02, January 25, 2020, effective 2/14/202043 CR 17, September 10, 2020, effective 8/17/202044 CR 17, September 10, 2021, effective 8/11/202144 CR 18, September 25, 2021, effective 10/15/202145 CR 03, February 10, 2022, effective 12/29/202145 CR 01, January 10, 2022, effective 1/30/202246 CR 05, March 10, 2023, effective 3/30/2023