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    ATIS 0300070-2012 Guidelines for the Administration of Telephone Numbers.pdf

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    ATIS 0300070-2012 Guidelines for the Administration of Telephone Numbers.pdf

    1、 ATIS-0300070 GUIDELINES FOR THE ADMINISTRATION OF TELEPHONE NUMBERS Reissued with the resolution of Issue 722 January 20, 2012 Page 2 Copyright 2012 by the Alliance for Telecommunications Industry Solutions, Inc. All rights reserved. The Guidelines for the Administration of Telephone Numbers dated

    2、January 20, 2012, is copyrighted, published and distributed by ATIS on behalf of the Industry Numbering Committee (INC). Except as expressly permitted, no part of this publication may be reproduced or distributed in any form, including electronic media or otherwise, without the prior express written

    3、 permission of ATIS. Participants in the INC and other parties are hereby authorized to reproduce this document and distribute it within their own business organizations for business purposes, provided that this notice continues to appear in the reproduced documentation. Resale is prohibited. For or

    4、dering information, please contact: ATIS 1200 G Street N.W., Suite 500 Washington, DC 20005 (202) 628-6380 incatis.org A complete listing of INC Documents is available on the ATIS Web Site at: http:/www.atis.org/inc/docs/.asp Page 3 ATIS is the leading technical planning and standards development or

    5、ganization committed to the rapid development of global, market-driven standards for the information, entertainment and communications industry. More than 250 companies actively formulate standards in ATIS 18 Committees, covering issues including: IPTV, Service Oriented Networks, Energy Efficiency,

    6、IP-Based and Wireless Technologies, Quality of Service, and Billing and Operational Support. In addition, numerous Incubators, Focus and Exploratory Groups address emerging industry priorities including “Green”, IP Downloadable Security, Next Generation Carrier Interconnect, IPv6 and Convergence. AT

    7、IS is the North American Organizational Partner for the 3rd Generation Partnership Project (3GPP), a member and major U.S. contributor to the International Telecommunication Union (ITU) Radio and Telecommunications Sectors, and a member of the Inter-American Telecommunication Commission (CITEL). For

    8、 more information please visit . - The Industry Numbering Committee (INC) provides an open forum to address and resolve industry-wide issues associated with planning, administration, allocation, assignment and use of North American Numbering Plan (NANP) numbering resources within the NANP area. This

    9、 document is maintained under the direction of ATIS and the INC. Suggestions for improvement of this document are welcome. They should be sent to the Alliance for Telecommunications Industry Solutions, INC Staff, 1200 G Street NW, Suite 500, Washington, DC 20005. All changes to this document shall b

    10、e made through the INC issue resolution process and adopted by the INC as set forth in the ATIS Operating Procedures. - Notice of Disclaimer (2) The SPs inability to meet the specific customer request for telephone numbers from the available numbers within the service providers opened thousands-bloc

    11、ks19 The above exceptions do not apply to individual vanity number requests.20 Upon a finding by a state commission that an SP inappropriately assigned telephone numbers from an uncontaminated thousands-block, the NANPA or the PA shall suspend assignment or allocation of any additional numbering res

    12、ources to that SP in the applicable NPA until the SP demonstrates that it does not have sufficient numbering resources to meet a specific customer request.21 5.0 Audits SPs and numbering resource administrators are responsible for managing numbering resources in accordance with these guidelines and

    13、the orders of applicable regulatory authorities. Both SPs and numbering resource administrators are subject to audits. Further information may be found in FCC 00-104 62, FCC 00-429 81-99, FCC 01-362 95-111, and 47 CFR 52.15 (k). 18 47 CFR 52.15 (j) (1) 19 47 CFR 52.15 (j) (2) 20 FCC DA 00-1549 relea

    14、sed July 11, 2000 21 47 CFR 52.15 (j) (3) Guidelines for the Administration of Telephone Numbers ATIS-0300070 January 20, 2012 Page 10 Guidelines for the Administration of Telephone Numbers ATIS-0300070 January 20, 2012 Page 11 6.0 GLOSSARY Administrative Numbers Administrative numbers are numbers u

    15、sed by telecommunications carriers to perform internal administrative or operational functions necessary to maintain reasonable quality of service standards. Examples of administrative numbers are: Test numbers, employee/official numbers, Location Routing Numbers, Temporary Local Directory Numbers,

    16、soft dial tone numbers and wireless E911 (ESRD/ESRK) numbers. (47 CFR 52.15 (f) (1) (i). Aging Numbers Aging numbers are disconnected numbers that are not available for assignment to another end user or customer for a specified period of time. Numbers previously assigned to residential customers may

    17、 be aged for no more than 90 calendar days. Numbers previously assigned to business customers may be aged for no more than 365 days. (47 CFR 52.15 (f) (1) (ii). Assigned Numbers Assigned numbers are numbers working in the PSTN under an agreement such as a contract or tariff at the request of specifi

    18、c end users or customers for their use, or numbers not yet working but having a customer service order pending. Numbers that are not yet working and have a service order pending for more than five calendar days shall not be classified as assigned numbers. (47 CFR 52.15 (f) (1) (iii). Auditee The SP/

    19、NANPA/PA that is the subject of an audit. Auditor The FCCs Enforcement Bureau or its other designated agents perform audits of US numbering resources (47 CFR 52.15 (k) (2). State Commissions also may conduct audits. (FCC 01-362 101) and may request “for cause” audits under the national auditing prog

    20、ram (47 CFR 52.15 (k) (3). Available Numbers Available numbers are numbers that are available for assignment to subscriber access lines, or their equivalents, within a switching entity or point of interconnection and are not classified as assigned, Guidelines for the Administration of Telephone Numb

    21、ers ATIS-0300070 January 20, 2012 Page 12 intermediate, administrative, aging, or reserved (47 CFR 52.15 (f) (1) (iv). Available numbers is a residual category that can be calculated by subtracting a sum of numbers in the assigned, reserved, intermediate, aged, and administrative primary categories

    22、from the total of numbers in the inventory of a code or block holder. (FCC 00-104, 35). Block Holder The entity to which a thousands-block (NXX-X) has been assigned for use. Code Holder An assignee of a pooled or non-pooled NXX that is assigned by the CO Code Administrator. The responsibilities of a

    23、n assignee for a pooled NXX are defined in Section 4.2.1 of the Thousands Block Number (NXX-X) Pooling Administration Guidelines (TBPAG) and for a non pooled NXX are defined in Section 6.3 of the Central Office Code (NXX) Assignment Guidelines (COCAG). A given Code Holder is identified in the LERG R

    24、outing Guide as the NPA-NXX-A (Assignee) OCN record holder. Contamination Contamination occurs when at least one telephone number within a thousands-block of telephone numbers is not available for assignment to end users or customers. Blocks contaminated up to and including 10 percent are eligible f

    25、or donation. For purposes of this provision, a telephone number is “not available for assignment” if it is classified as administrative, aging, assigned, intermediate, or reserved as defined in FCC rules (47 CFR 52.7 (h). Disconnect Date The date specified by the end user that the telephone number i

    26、s no longer associated between the end user and the current service provider. This date signals the beginning of the aging interval. Disconnected Number A number that is no longer used to route calls to equipment owned or leased by the disconnecting subscriber of record. Effective Date The date by w

    27、hich routing and rating changes Guidelines for the Administration of Telephone Numbers ATIS-0300070 January 20, 2012 Page 13 within the PSTN must be complete for the assigned thousands-block or the assigned CO Code. Also, the date by which the thousands-block becomes an active block. (Also referred

    28、to as “the LERG effective date”). Effective Release Date: The date on which a disconnected ported telephone number reverts or “snaps” back to the Code Holder or Block Holder and when the NPACs broadcast of the disconnect occurs. In Service A code or block for which local routing information appears

    29、in the LERG Routing Guide, and one or more telephone numbers within the NXX code or NXX-X block has been Assigned to an end user (FCC 00-104, 240). Numbers that are categorized as Administrative, Aging, Intermediate, Reserved, or Available cannot also be Assigned and do not satisfy the In Service re

    30、quirement. Intermediate Numbers Intermediate numbers are numbers that are made available for use by another telecommunications carrier or non-carrier entity for the purpose of providing telecommunications service to an end user or customer. Numbers ported for the purpose of transferring an establish

    31、ed customers service to another service provider shall not be classified as intermediate numbers. (47 CFR 52.15 (f) (1) (v). NANP (North American Numbering Plan) A numbering architecture in which every station in the NANP area is identified by a unique ten-digit address consisting of a three-digit N

    32、PA code, a three digit central office code of the form NXX, and a four-digit line number of the form XXXX, where N represents the digits 2-9 and X represents the digits 0-9. It is the basic numbering scheme for the telecommunications networks located in American Samoa, Anguilla, Antigua, Bahamas, Ba

    33、rbados, Bermuda, British Virgin Islands, Canada, Cayman Islands, Dominica, Dominican Republic, Grenada, Jamaica, Montserrat, St. Kitts & Nevis, St. Lucia, St. Vincent, Turks & Caicos Islands, Trinidad & Tobago, and the United States (including Puerto Guidelines for the Administration of Telephone Nu

    34、mbers ATIS-0300070 January 20, 2012 Page 14 Rico, the U.S. Virgin Islands, Guam, the Commonwealth of the Northern Mariana Islands) 47 CFR 52.5 (c). NANPA (North American Numbering Plan Administration) The NANPA is responsible for the neutral administration of NANP numbering resources, subject to dir

    35、ectives from regulatory authorities in the NANP member countries (see also 47 CFR 52.7 (e). The NANPA is an impartial non-governmental entity that is not aligned with any particular telecommunications industry segment.22 Under contract to the FCC, NANPAs responsibilities include assignment of NANP r

    36、esources, and, in the U.S. and its territories, coordination of area code relief planning and collection of utilization and forecast data. See also 47 CFR 52.13. Numbers Retained per the Servicemembers Civil Relief Act (See also NRUF Guidelines) Numbers related to contracts terminated as provided by

    37、 the Servicemembers Civil Relief Act (as amended by the Veterans Benefit Act of 2010), which service providers have retained for re-subscription by the servicemember. These numbers shall be categorized as Assigned numbers. See Title III, Section 302 of the Veterans Benefit Act of 2010 for further in

    38、formation: http:/www.govtrack.us/congress/billtext.xpd?bill=h111-3219. Numbers Used for Intermittent Purposes (See also NRUF Guidelines) Numbers used for intermittent purposes are numbers designated for use by a particular customer that may be “working” in the Public Switched Telephone Network (PSTN

    39、) periodically, but that remain designated for the customers use even if they are not “working.” Numbers used for intermittent or cyclical purposes should not be categorized as reserved numbers for NRUF reporting purposes Numbers contained in blocks assigned for use in Centrex or PBX systems may be

    40、categorized as 22 Administration of the North American Numbering Plan, Report and Order, CC Docket No. 92-237, 11 FCC Rcd 2588, 2608 (1995) (NANP Order). Guidelines for the Administration of Telephone Numbers ATIS-0300070 January 20, 2012 Page 15 assigned numbers by reporting carriers, to the extent

    41、 that fifty percent (50%) or more of such numbers are “working” at all times. Also, numbers “working” periodically for regular intervals of time, such as numbers assigned to summer homes or student residences, may be categorized as assigned numbers, to the extent that they are “working” for a minimu

    42、m of 90 days during each calendar year in which they are assigned to a particular customer (FCC 01-362, 122). Pooling Administrator (PA) The term Pooling Administrator refers to the entity or entities responsible for administering a thousands-block number pool (47 CFR 52.7 (g). The Pooling Administr

    43、ator is responsible for the neutral administration of thousands-blocks from Central Office (CO) Codes in areas where thousands-block number pooling has been ordered or implemented. The PA is an impartial non-governmental entity that is not aligned with any particular telecommunications industry segm

    44、ent and is under contract to the FCC. Rate Center Rate Center is used for numbering resource applications and reports to associate telephone numbers with a geographic area, as defined by the relevant regulatory agency. A Rate Center is also a uniquely defined point (Vertical & Horizontal Coordinates

    45、) located within an exchange area from which mileage measurements are determined. These measurements can be used with the tariffs in the message rating processes. Reserved Number Reserved numbers are numbers that are held by service providers at the request of specific end users or customers for the

    46、ir future use. Numbers held for specific end users or customers for more than 180 calendar days shall not be classified as reserved numbers. (47 CFR 52.15 (f) (1) (vi). Sequential Number Assignment An FCC mandate which requires all carriers first assign all available telephone numbers within an open

    47、ed thousands-block before opening another thousands-block, unless the available numbers in the opened thousands-block are not sufficient to Guidelines for the Administration of Telephone Numbers ATIS-0300070 January 20, 2012 Page 16 meet a customer request. This requirement shall apply to a service

    48、providers existing numbering resources as well as any new numbering resources it obtains in the future. (47 CFR 52.15 (j) (1). Snap Back On the Effective Release Date of the disconnected ported telephone number, the NPAC notifies the code holder/block holder of the disconnected telephone number and its corresponding effective release and disconnect dates, i.e., telephone number snaps back to code holder/block holder. The telephone number is now available for the code holder/block holder to assign to a subscriber. If no effective release date is provided to the NPAC by


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