Addenda and Errata to ANTS 7 article The elliptic curve database for conductors to 130000 as of 31 July 2006 Page numbers refer to the printed edition which starts on page 11. 1. Page 20, under Magma: Version 2.13 (late July 2006) has all the curves of conductors up to 130000 so LargestConductor(ECDB) now returns 130000 and NumberOfCurves(ECDB) gives 845960. 2. Page 23, Fig.1: The percentages in the pie chart are correct to 120000, but to 130000 should be replaced by: rank 0: 38.22% rank 1: 50.75% rank 2: 10.87% rank 3: 0.16% These were given correctly at the conference. 3. Page 25: the penultimate paragraph of section 3.4 should read At the other extreme, the minimal height of a generator is for curve $3990v1=[1,1,1,-125615,61201397]$, whose generator $(7107,-602054)$ has canonical height~$0.0089$. 4. Page 26, Table 4: for C_16 read C_2 x C_8. Same for slide #26. 5. Page 27, Table 5: OK in the proceedings but on slide #29 the figures were given as for N<120000 (approximately). 6. Page 27, Theorem 1: Everything from "except for the following cases" can be deleted, as reported at the conference.