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Operational Bulletin (2003 editions)
 Operational Bulletin No. 802 (15.XII.2003)
 Operational Bulletin No. 801 (1.XII.2003) and Annexed List: Mobile Network Code (MNC) for the international identification plan for mobile terminals and mobile users (According to ITU-T Recommendation E.212 (11/98)) (Position on 1 December 2003)
 Operational Bulletin No. 800 (15.XI.2003)
 Operational Bulletin No. 799 (1.XI.2003) and Annexed List: List of Signalling Area/Network Codes (SANC) (Complement to ITU-T Recommendation Q.708 (03/99)) (Position on 1 November 2003)
 Operational Bulletin No. 798 (15.X.2003) and Annexed List: List of Data Network Identification Codes (DNIC)(According to ITU-T Recomendation X.121) (Position on 15 October 2003)
 Operational Bulletin No. 797 (1.X.2003) and Annexed List: List of International Signalling Point Codes (ISPC) (According to ITU-T Recommendation Q.708 (03/99)) (Position on 1 October 2003)
 Operational Bulletin No. 796 (15.IX.2003)
 Operational Bulletin No. 795 (1.IX.2003)
 Operational Bulletin No. 794 (15.VIII.2003)
 Operational Bulletin No. 793 (1.VIII.2003)
 Operational Bulletin No. 792 (15.VII.2003)
 Operational Bulletin No. 791 (1.VII.2003)
 Operational Bulletin No. 790 (15.VI.2003)
 Operational Bulletin No. 789 (1.VI.2003) and Annexed List: Access codes/numbers for mobile networks (According to ITU-T Recommendation E.164) (Position on 1 June 2003)+TSB Circular 164 of 26 May 2003: Satisfaction Survey concerning ITU Operational Bulletin
 Operational Bulletin No. 788 (15.V.2003)
 Operational Bulletin No. 787 (1.V.2003) and Annexed List: Dialling Procedures (International prefix, national (Trunk) prefix and national (significant) number) (in accordance with ITU-T Recommendation E.164 (05/97))
 Operational Bulletin No. 786 (15.IV.2003)
 Operational Bulletin No. 785 (1.IV.2003) and Annexed List: List of Issuer Identifier Numbers for the International Telecommunication Charge Card (In accordance with ITU-T Recommendation E.118) (Position on 1 April 2003)
 Operational Bulletin No. 784 (15.III.2003)
 Operational Bulletin No. 783 (1.III.2003) and Annexed List: List of mobile country or geographical area codes (Complement to ITU-T Recommendation E.212 (11/98) (Position on 1 March 2003)
 Operational Bulletin No. 782 (15.II.2003)
 Operational Bulletin No. 781 (1.II.2003) and Annexed List: Various tones used in national networks (According to ITU-T Recommendation E.180) (03/1998) (Position on 1 February 2003)
 Operational Bulletin No. 780 (15.I.2003)
 Operational Bulletin No. 779 (1.I.2003) and Annexed List: Mobile Network Code (MNC) for the international identification plan for mobile terminals and mobile users (According to ITU-T Rec. E.212 (11/98)) (Position on 1 January 2003)
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