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Filing Detail
Form 424B5 - Prospectus [Rule 424(b)(5)]:
SEC Accession No. 0001193125-08-204315
Filing Date
2008-10-01
Accepted
2008-10-01 10:53:28
Documents
2

Document Format Files

Seq Description Document Type Size
1 PRELIMINARY PROSPECTUS SUPPLEMENT d424b5.htm 424B5 304685
3 GRAPHIC g32235g52q48.gif GRAPHIC 2334
  Complete submission text file 0001193125-08-204315.txt   309769
Mailing Address 200 FIRST ST SE ALLIANT ENERGY TOWER CEDAR RAPIDS IA 52401
Business Address 200 FIRST ST SE ALLIANT ENERGY TOWER CEDAR RAPIDS IA 52401 3193984411
INTERSTATE POWER & LIGHT CO (Filer) CIK: 0000052485 (see all company filings)

IRS No.: 420331370 | State of Incorp.: IA | Fiscal Year End: 1231
Type: 424B5 | Act: 33 | File No.: 333-151898 | Film No.: 081098804
SIC: 4931 Electric & Other Services Combined