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Filing Detail
Form 424B5 - Prospectus [Rule 424(b)(5)]:
SEC Accession No. 0001193125-13-389522
Filing Date
2013-10-03
Accepted
2013-10-03 08:43:53
Documents
1

Document Format Files

Seq Description Document Type Size
1 PRELIMINARY PROSPECTUS SUPPLEMENT d605988d424b5.htm 424B5 366114
  Complete submission text file 0001193125-13-389522.txt   367428
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.: 333-178577-02 | Film No.: 131132189
SIC: 4931 Electric & Other Services Combined