Telecommunication standardization bureau
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- INTERNATIONAL TELECOMMUNICATION UNION TSB TELECOMMUNICATION STANDARDIZATION BUREAU OF ITU
- _______________________________________________________________ Geneva, 2011 List of International Signalling Point Codes (ISPC)
- List of International Signalling Point Codes (ISPC) for signalling system No. 7 (According to ITU-T Recommendation Q.708 (03/99))
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Annex to ITU Operational Bulletin No. 979 – 1.V.2011
TSB TELECOMMUNICATION STANDARDIZATION BUREAU OF ITU _______________________________________________________________ LIST OF INTERNATIONAL SIGNALLING POINT CODES (ISPC) (ACCORDING TO ITU-T RECOMMENDATION Q.708 (03/99)) (POSITION ON 1 MAY 2011) _______________________________________________________________ Geneva, 2011 List of International Signalling Point Codes (ISPC) Note from TSB 1. This List of International Signalling Point Codes (ISPC) replaces the previous one published as Annex to the ITU Operational Bulletin No. 956 of 15.V.2010. Since then, a number of notifications have been received at TSB and they have been published separately in various issues of the ITU Operational Bulletin. The present list recapitulates all the different amendments that have been published up to ITU Operational Bulletin No. 979 of 1.V.2011. 2. Recommendation Q.708 states that the assignment of signalling area/network codes (SANC) is to be administered by TSB. Each country will then be responsible for the assignment of international signalling point codes (ISPC) that will then be notified to TSB. 3. The numbering plan of Recommendation Q.708 contains 2 048 SANCs providing for 16 384 international signalling points. From these, currently 1 536 SANCs are available for assignment allowing for 12 288 international points. At present 937 SANCs are assigned; the reported utilization is 5 417 international signalling points. 4. In order to keep the list up to date, administrations are, therefore, requested to notify TSB, by using the notification form attached, as soon as an ISPC assignment or withdrawal is made, www.itu.int/itu-t/inr/forms/ispc.html . 5. This List will be updated by numbered series of amendments published in the ITU Operational Bulletin. Furthermore, the information contained in this Annex is also available on the ITU website www.itu.int/itu-t/bulletin/annex.html . 6. Please address any comments or any modifications concerning this List to the Director of TSB: Director of TSB International Telecommunication Union Place des Nations CH-1211 GENEVA 20 Switzerland Tel: +41 22 730 5211 Fax: +41 22 730 5853 E-mail: tsbtson@itu.int 7. The designations employed and the presentation of material in this List do not imply the expression of any opinion whatsoever on the part of ITU concerning the legal status of any country or geographical area, or of its authorities. List of International Signalling Point Codes (ISPC) for signalling system No. 7 (According to ITU-T Recommendation Q.708 (03/99))
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