| Number Theory Conferences, New and Old: Compiled by Keith Matthews as part of the Number Theory Web. |
| ANTS VII: Algorithmic Number Theory Symposium. Technische Universität Berlin, Germany; 23--28 July 2006. |
| Arithmetic Algebraic Geometry: El Escorial, Madrid, Spain; 4--8 September 2006. |
| Arithmetic Dynamics and Modular Forms: Research Experiences for Undergraduates (REU). University of Wisconsin, Madison, WI, USA; 5 June -- 28 July 2006. |
| Automorphic Galois Representations, L-functions and Arithmetic: Instructional Workshop. Columbia University, New York, NY, USA; 17--22 June 2006. |
| Celebration of Bryan Birch's 75th Birthday: University of Bristol, UK; 15--16 September 2006. |
| CNTA IX: 9th meeting of the Canadian Number Theory Association. University of British Columbia, Vancouver, BC, Canada; 9--14 July 2006. |
| Computational Number Theory and Applications to Cryptography: University of Wyoming, Laramie, WY, USA; 19 June -- 7 July 2006. |
| Iwasawa 2006: Dedicated to Thong Nguyen Quang Do on the occasion of his sixtieth birthday. Limoges, France; 3--7 July 2006. |
| Number Theory and Cryptography - Open Problems: Workshop in the research session on Securing Cyberspace. Institute for Pure and Applied Mathematics (IPAM) Los Angeles, CA, USA; 9--13 October 2006. |
| Number Theory and Functional Analysis: Université de Lille I, France; 15--17 June 2006. |
| Rational and Integral Points on Higher-Dimensional Varieties: Research programme at the Mathematical Sciences Research Institute, Berkeley, CA, USA; 9 January -- 19 May 2006. |
| Subconvexity Bounds for L-functions: ARCC Workshop. AIM, Palo Alto, CA, USA; 16--20 October 2006. |
| Summer School on Arithmetic Geometry: Clay Mathematics Institute 2006 Summer School. Georg-August-Universität, Göttingen, Germany; 17 July -- 11 August. |