1、 ATIS-0300059 UNIFORM DIALING PLAN Reissued with the resolution of Issue 129 July 31, 1998 Copyright 1998 by the Alliance for Telecommunications Industry Solutions, Inc. All rights reserved. The INC Uniform Dialing Plan dated July 31, 1998 (former document number INC 97-0131-017) is copyrighted, pub
2、lished 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 permission of ATIS. Participants in
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4、TIS 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 ATIS is the leading technical planning and standards development organization committed to the rapid developmen
5、t 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, IP-Based and Wireless Technologies, Quality
6、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. ATIS is the North American Organizational Part
7、ner 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 more information please visit . - The Indus
8、try 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 document is maintained under the direction
9、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 be made through the INC issue resolution proc
10、ess and adopted by the INC as set forth in the ATIS Operating Procedures. - Notice of Disclaimer e.g., 800. N00 codes are commonly referred to as service access codes (SACs). North American Numbering Plan Administrator (NANPA) - With divestiture, key responsibilities for coordination and administrat
11、ion of the North American Numbering Plans were assigned to NANPA. . NPA (Numbering Plan Area) - Numbering Plan Area (NPA), also called area code. An NPA is the 3-digit code that occupies the A, B, and C positions in the 10-digit North American Numbering Plan (NANP) format that applies throughout the
12、 NANP Area. NPAs are of the form NXX, where N represents the digits 2-9 and X represents any digit 0-9. In the NANP, NPAs are classified as either geographic or non-geographic. A) Geographic NPAs are NPAs which correspond to discrete geographic areas within the NANP Area. B) Non-geographic NPAs are
13、NPAs that do not correspond to discrete geographic areas, but which are instead assigned for services with attributes, functionalities, or requirements that transcend specific geographic boundaries. The common examples are NPAs in the N00 format, e.g., 800. Permissible HNPA Local - although the stan
14、dard procedure for dialing a home NPA local call is shown under the HNPA LOCAL column, it is also “permissible“ for the caller to place the place the call using the method under this column (see Appendix B). Permissible HNPA Toll - although the standard procedure for dialing a home NPA toll call is
15、shown under the HNPA TOLL column, it is also “permissible“ for the caller to place the call using the method under this column (see Appendix B). INC Uniform Dialing Plan ATIS-0300059 July 1998 Page 17 of 21 _ Permissible FNPA Local - although the standard procedure for dialing a foreign NPA local ca
16、ll is shown under the FNPA LOCAL column, it is also “permissible“ for the dialer place the call using the method under this column (see Appendix B). INC Uniform Dialing Plan ATIS-0300059 July 1998 Page 18 of 21 _ APPENDIX B Resolution Concerning a Minimum Standard Dialing Plan WHEREAS, The Bell Comm
17、unications Research Corporation (Bellcore) was created as a result of the Modified Final Judgment between AT and WHEREAS, The Plan of Reorganization stipulated that Bellcore should be the administrator of the North American Numbering Plan for the telephone industry; and WHEREAS, Due to the rapid exh
18、aust of the supply of Number Plan Area (NPA) codes, Bellcore is planning to implement on January 1, 1995, an interchangeable Number Plan Area (INPA) code format, i.e., allowing the use of any number between 0 and 9 as the middle digit of an area code; and WHEREAS, When interchangeable NPAs are intro
19、duced, switching systems will not be able to distinguish between 7- and 10-digit addresses by examining the first three digits of the telephone number dialed; and WHEREAS, The Bellcore recommended dialing plan under INPA for those locations without Step-by-Step equipment is that all calls within the
20、 Home Numbering Plan Area (HNPA), whether local or toll, be dialed on a 7-digit basis, and some states are considering a HNPA 11-digit toll call dialing requirement; and WHEREAS, On May 26, 1993, the Ad Hoc Telecommunications Users Committee (Ad Hoc) filed a request for a rulemaking to adopt an alte
21、rnative dialing plan to the Bellcore proposal to eliminate the use of the prefix 1 as a toll call identifier as part of its implementation of INPA; and WHEREAS, The Ad Hoc recommended dialing plan shown below: Local call, Home NPA 7-digits NXX-XXX Local call, Foreign NPA 10-digits FNPA-NXX-XXXX Toll
22、 call, Home NPA 11-digits 1+HNPA-NXX-XXXX Toll call, Foreign NPA 11-digits 1+FNPA-NXX-XXXX retains the prefix 1 as a toll call identifier, which gives the consumer a clear indication when a call will be billed as a toll call; and WHEREAS, States have historically been involved in the implementation
23、of local dialing plans; and WHEREAS, A uniform nationwide dialing plan will assist states in dealing with the shortage of available numbering resources and the impending implementation of INPA codes; and INC Uniform Dialing Plan ATIS-0300059 July 1998 Page 19 of 21 _ WHEREAS, Uniformity of dialing p
24、lans across jurisdictions is desirable given the increasing mobile nature of our society; and WHEREAS, On July 27, 1993, the National Association of Regulatory Utility Commissioners (NARUC) Committee on Communications adopted a Communications Subcommittee proposal to establish a work group of intere
25、sted staff to review existing and proposed dialing plans to determine their workability and to develop a draft position on the feasibility of adopting a uniform nationwide dialing plan; and WHEREAS, The work group has developed a draft position supporting adoption of a minimum standard dialing plan
26、of Prefix 1 + Area Code + Central Office Code that should be established on a permissive basis in each state as an overlay to existing dialing plans; and WHEREAS, The draft position recommends that the local exchange company should route the call to an explanatory announcement about the applicable d
27、ialing procedures for a particular location, if the minimum standard dialing plan cannot be used in that location; now, therefore be it RESOLVED, That the Executive Committee of the NARUC, convened at its 1994 Winter Meeting in Washington, DC, endorses the minimum standard dialing plan of Prefix 1 +
28、 Area Code + Central Office Code on a permissive basis, as any overlay to existing state dialing plans; and be it further RESOLVED, That, if the minimum standard dialing plan is not workable in a particular location, the local exchange company should route the call to an explanatory announcement abo
29、ut the applicable dialing procedures for that location; and be it further RESOLVED, That all NARUC members are encouraged to adopt Prefix 1 + Area Code + Central Office Code as the minimum standard dialing plan within their state jurisdictions; and be it further RESOLVED, That, in addition to the mi
30、nimum standard dialing plan, all NARUC members are strongly urged to adopt a dialing plan, such as using the Prefix 1 as a toll indicator, within their state jurisdictions that gives the consumer the information to easily determine when a call will be billed as a toll call; and be it further RESOLVED, That the NARUC General Counsel shall file papers and other documents supporting the policies of this resolution in the appropriate forms to further this recommendation. Sponsored by the Committee on Communications Adopted March 1994
