London, 27 July 2021: The Derivatives Service Bureau (DSB), founded by the Association of National Numbering Agencies (ANNA) to facilitate the allocation and maintenance of International
The Derivatives Service Bureau (DSB) Limited is a company registered in England and Wales (No. 10542063)
LEI: 529900ORI6ALO8ABW676
Registered Address:
The Derivatives Service Bureau (DSB) Limited,
Randall House,
6 Dowgate Hill,
London, EC4R 2SU,
United Kingdom
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