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Operational Bulletin (2004 editions)
 Operational Bulletin No. 826 (15.XII.2004)
 Operational Bulletin No. 825 (1.XII.2004) and Annexed List: List of signalling area/network codes (SANC) (Position on 1 December 2004) - Complement to ITU-T Recommendation Q.708 (03/99) (Position on 1 December 2004)
 Operational Bulletin No. 824 (15.XI.2004)
 Operational Bulletin No. 823 (1.XI.2004) and Annexed List: List of International Signalling Point Codes (ISPC) (According to ITU-T Recommendation Q.708 (03/99)) (Position on 1 November 2004)
 Operational Bulletin No. 822 (15.X.2004)
 Operational Bulletin No. 821 (1.X.2004)
 Operational Bulletin No. 820 (15.IX.2004)
 Operational Bulletin No. 819 (1.IX.2004)
 Operational Bulletin No. 818 (15.VIII.2004) and Annexed List: List of Data Network Identification Codes (DNIC) (According to ITU-T Recommendation X.121 (10/00)) (Position on 15 August 2004)
 Operational Bulletin No. 817 (1.VIII.2004) and Annexed List: List of Data Country or Geographical Area Codes (According to ITU-T Rec. X.121) (Position on 1 August 2004)
 Operational Bulletin No. 816 (15.VII.2004) and Annexed List: Access codes/numbers for mobile networks (According to ITU-T rec. E.164) (Position on 15 July 2004)
 Operational Bulletin No. 815 (1.VII.2004) and Annexed List: List of terrestrial trunk radio mobile country codes
 Operational Bulletin No. 814 (15.VI.2004)
 Operational Bulletin No. 813 (1.VI.2004)
 Operational Bulletin No. 812 (15.V.2004)
 Operational Bulletin No. 811 (1.V.2004)
 Operational Bulletin No. 810 (15.IV.2004)
 Operational Bulletin No. 809 (1.IV.2004)
 Operational Bulletin No. 808 (15.III.2004)
 Operational Bulletin No. 807 (1.III.2004)
 Operational Bulletin No. 806 (15.II.2004)
 Operational Bulletin No. 805 (1.II.2004) and Annexed List: List of ITU-T Recommendation E.164 assigned country codes (position on 1 February 2004)
 Operational Bulletin No. 804 (15.I.2004)
 Operational Bulletin No. 803 (1.I.2004) and Annexed List: List of Mobile Country or Geographical Area Codes (Complement to ITU T Recommendation E.212 (11/98)) (Position on 1 January 2004)
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