1、 ATIS-0300070 Guidelines for the Administration of Telephone Numbers Reissued with the resolution of Issue 850. April 20, 2018 Page 2 Copyright 2018 by the Alliance for Telecommunications Industry Solutions, Inc. All rights reserved. The Guidelines for the Administration of Telephone Numbers dated A
2、pril 20, 2018, 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 pe
3、rmission 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 order
4、ing 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 As a leading technology and solutions development organization, the Al
5、liance for Telecommunications Industry Solutions (ATIS) brings together the top global ICT companies to advance the industrys most pressing business priorities. ATIS nearly 200 member companies are currently working to address the All-IP transition, 5G, network functions virtualization, big data ana
6、lytics, cloud services, device solutions, emergency services, M2M, cyber security, network evolution, quality of service, billing support, operations, and much more. These priorities follow a fast-track development lifecycle from design and innovation through standards, specifications, requirements,
7、 business use cases, software toolkits, open source solutions, and interoperability testing. ATIS is accredited by the American National Standards Institute (ANSI). The organization is the North American Organizational Partner for the 3rd Generation Partnership Project (3GPP), a founding Partner of
8、the oneM2M global initiative, a member of and major U.S. contributor to the International Telecommunication Union (ITU), as well as a member of the Inter-American Telecommunication Commission (CITEL). For more information, visit www.atis.org. - The Industry Numbering Committee (INC) provides an open
9、 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 document is maintained under the direction of ATIS and the INC. Suggestions for improveme
10、nt 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 be made through the INC issue resolution process and adopted by the INC as set forth in the
11、 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-blocks19The above exceptions do not apply to individual vanity number requests.20Upon a findin
12、g 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 resources to that SP in the applicable NPA until the SP demonstrates that it does not have suff
13、icient numbering resources to meet a specific customer request.215.0 Audits SPs and numbering resource administrators are responsible for managing numbering resources in accordance with these guidelines and the orders of applicable regulatory authorities. Both SPs and numbering resource administrato
14、rs are subject to audits. Further information may be found in FCC 1847 CFR 52.15 (j) (1). 1947 CFR 52.15 (j) (2). 20FCC DA 00-1549 released July 11, 2000. 2147 CFR 52.15 (j) (3). Guidelines for the Administration of Telephone Numbers ATIS-0300070 April 20, 2018 Page 1000-104 62, FCC 00-429 81-99, FC
15、C 01-362 95-111, and 47 CFR 52.15 (k). Guidelines for the Administration of Telephone Numbers ATIS-0300070 April 20, 2018 Page 116.0 GLOSSARY Administrative Numbers Administrative numbers are numbers used by telecommunications carriers to perform internal administrative or operational functions nece
16、ssary to maintain reasonable quality of service standards (47 CFR 52.15 (f) (1) (i) and FCC 00-104, 36 and 62). Examples of administrative numbers are: Test numbers, employee/official numbers, Location Routing Numbers, Temporary Local Directory Numbers (TLDN), soft dial tone numbers and Pseudo-Autom
17、atic Number Identification (p-ANI) numbers. 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 be aged for no more than 90 calendar days. N
18、umbers 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 specific end users or customers for their use, or num
19、bers 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/NANPA/PA that is the subject of an audit. Audit
20、or 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 program (47 CFR 52.15 (k) (3). Available Numbers Av
21、ailable numbers are numbers that are available for assignment to subscriber access lines, or their equivalents, within a switching entity or point of Guidelines for the Administration of Telephone Numbers ATIS-0300070 April 20, 2018 Page 12interconnection and are not classified as assigned, intermed
22、iate, 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 from the total of numbers in the inventory of a co
23、de 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 an assignee for a pooled NXX are defined in Section
24、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 Routing Guide as the NPA-NXX-A (Assignee) OCN record
25、 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 for donation. For purposes of this provision, a tele
26、phone 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 is no longer associated between the end user and the
27、 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. Guidelines for the Administration of Telephone Numbers ATIS-0300070 April 20, 2
28、018 Page 13Effective Date The date by which routing and rating changes 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 to as “the LERG effective date”). Effective Release Da
29、te: 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. Emergency Service Query Key (ESQK) (VoIP) The ESQK identifies an E911 call instance processed through a VoIP Positioning Cent
30、er (VPC). An ESQK is associated with a particular PSAP or area within a PSAP. The ESQK is delivered to the PSAP as the calling number/ANI for the call, and is subsequently used by the PSAP to request ALI information for the call. The ALI database includes the ESQK in location requests sent to the VP
31、C. The ESQK is used by the VPC as a key to look up the location object and other call information associated with an emergency call instance. The ESQK is a non-dialable North American Numbering Plan (NANP) number in the format of NPA-NXX-XXXX. Emergency Services Routing Digit (ESRD) and Emergency Se
32、rvice Routing Key (ESRK) (Wireless) A 10-digit number used for the purpose of routing an E911 call to the appropriate Public Service Answering Point (PSAP) when that call is originating from wireless equipment. The Emergency Services Routing Digit (ESRD) identifies the cell site and sector of the ca
33、ll origination in a wireless call scenario. The Emergency Services Routing Key (ESRK) uniquely identifies the call in a given cell site/sector and correlates data that is provided to a PSAP by different paths, such as the voice path and the Automatic Location Identification (ALI) data path. Both the
34、 ESRD and ESRK define a route to the proper PSAP. The ESRK alone, or the ESRD and/or Mobile Identification Number (MIN), is signaled to the PSAP where it can be used to retrieve from the ALI database, the mobile callers call-back number, position and the emergency service agencies (e.g., police, fir
35、e, Guidelines for the Administration of Telephone Numbers ATIS-0300070 April 20, 2018 Page 14medical, etc.) associated with the callers location. If a NANP TN is used as an ESRD or ESRK, this number cannot be assigned to a customer. See “Administrative Numbers” definition. In Service A code or block
36、 for which local routing information appears 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
37、Assigned and do not satisfy the In Service requirement. Interconnected Voice over Internet Protocol (VoIP) Service Provider An entity that provides interconnected VoIP service, as that term is defined in 47 U.S.C. 153(25) (47 CFR 52.5 (b). Interconnected VoIP providers are providers of a service tha
38、t (1) enables real-time, two way voice communications, (2) requires a broadband connection from the users location, (3) requires Internet protocol-compatible customer premises equipment, and (4) permits users generally to receive calls that originate on the public switched telephone network and to t
39、erminate calls to the public switched telephone network (47 CFR 9.3). 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.
40、Numbers ported for the purpose of transferring an established customers service to another service provider shall not be classified as intermediate numbers (47 CFR 52.15 (f) (1) (v). Numbers such as dealer number pools should be included as a subcategory of intermediate numbers (FCC 00-104 36). An “
41、intermediate” number is one that is made available to a carrier or non-carrier entity from another carrier, but has not necessarily been assigned to an end-user or customer by the receiving carrier or non-carrier entity (FCC 15-70 30). Numbers provided to carriers, interconnected VoIP providers, or
42、other Guidelines for the Administration of Telephone Numbers ATIS-0300070 April 20, 2018 Page 15non-carrier entities by numbering partners should be reported as “intermediate,” and do not qualify as “end users” or “customers” (FCC 15-70, 32). NANPA (North American Numbering Plan Administration) The
43、NANPA is responsible for the neutral administration of NANP numbering resources, subject to directives 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 indu
44、stry segment.22Under contract to the FCC, NANPAs responsibilities include assignment of NANP resources, 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 Civi
45、l Relief Act (See also NRUF Guidelines) Numbers related to contracts terminated as provided by 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 A
46、ssigned numbers. See Title III, Section 302 of the Veterans Benefit Act of 2010 for further information: . 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 Pub
47、lic Switched Telephone Network (PSTN) 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
48、use in Centrex or PBX systems may be categorized as 22Administration 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 April 20, 2018 Page 16assigned numbers by reporting carriers, to the extent 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
