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Operational Bulletin (2001 editions)
 Operational Bulletin No. 754 (15.XII.2001)
 Operational Bulletin No. 753 (1.XII.2001)
 Operational Bulletin No. 752 (15.XI.2001)
 Operational Bulletin No. 751 (1.XI.2001)
 Operational Bulletin No. 750 (15.X.2001)
 Operational Bulletin No. 749 (1.X.2001)
 Operational Bulletin No. 748 (15.IX.2001)
 Operational Bulletin No. 747 (1.IX.2001)
 Operational Bulletin No. 746 (15.VIII.2001) and Annexed List: Access codes/numbers for mobile networks (According to ITU-T Recommendation E.164 (05/97)) (Position on 15 August 2001) and List fo Data Network Identification Codes (DNIC) on 15 August 2001
 Operational Bulletin No. 745 (1.VIII.2001)
 Operational Bulletin No. 744 (15.VII.2001)
 Operational Bulletin No. 743 (1.VII.2001)
 Operational Bulletin No. 742 (15.VI.2001)
 Operational Bulletin No. 741 (1.VI.2001) and Annexed List: List of Mobile Country or Geographical Area Codes (Complement to ITU-T Recommendation E.212 (11/98)) (Position on 1 June 2001)
 Operational Bulletin No. 740 (15.V.2001)
 Operational Bulletin No. 739 (1.V.2001) and Annexed List: List of ITU Carrier Codes (According to ITU-T Recommendation M. 1400 (02/2000)) (Position on 1 May 2001)
 Operational Bulletin No. 738 (15.IV.2001)
 Operational Bulletin No. 737 (1.IV.2001) and Annexed List: List of signalling Area/Network Codes (SANC) (Complement to ITU-T Recommendation Q.708 (03/99)) (Position on 1 April 2001)
 Operational Bulletin No. 736 (15.III.2001)
 Operational Bulletin No. 735 (1.III.2001) and Annexed List: List of International Signalling Point Codes (ISPC) (According to ITU-T Recommendation Q.708 (03/99)) (Position on 1st march 2001)
 Operational Bulletin No. 734 (15.II.2001)
 Operational Bulletin No. 733 (1.II.2001)
 Operational Bulletin No. 732 (15.I.2001)
 Operational Bulletin No. 731 (1.I.2001)
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