Document Name: INC-2025-00130R001.docx
Description Currently there is no direction in ATIS-0300119, Thousands-Block
(NPA-NXX-X) & Central Office Code (NPA-NXX) Administration Guidelines
Section 9.2 regarding effective date changes to Pooled CO Codes.
NANPA suggests adding language to ATIS-0300119, Thousands-Block (NPA-NXX-X)
& Central Office Code (NPA-NXX) Administration Guidelines regarding
effective date changes to Pooled CO Codes. NANPA suggests adding the
following to a new Section 9.2.8:
• an effective date change may be modified to an earlier effective date,
• an effective date change may be modified to a later effective date when
there are no Thousands-Blocks assigned to SPs other than the Code Holder
• an effective date change shall be denied when there are Thousands-Blocks
assigned to SPs other than the Code Holder
Each item would indicate the impacts on the Part 4 Due Date, Available Date
of Thousands-Blocks in the Industry Inventory Pool, and direction on how to
update the Thousands-Block Holders when an effective date change is denied. Download Latest Revision
Submitter: Anna Karditzas Group: INC - Industry Numbering Committee Folder: 2025 Date submitted: 2025-10-22 20:47:49 Revision: 1
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Anna Karditzas
ATIS, Senior Coordinator - Global Standards Development
+1 (202) 434-8843
akarditzas@atis.org---------------------------------