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Filing Detail
Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses:
SEC Accession No. 0001193125-10-137092
Filing Date
2010-06-10
Accepted
2010-06-10 15:32:33
Documents
1

Document Format Files

Seq Description Document Type Size
1 FREE WRITING PROSPECTUS dfwp.htm FWP 9495
  Complete submission text file 0001193125-10-137092.txt   12136
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 (Filed by) CIK: 0000052485 (see all company filings)

IRS No.: 420331370 | State of Incorp.: IA | Fiscal Year End: 1231
Type: FWP
SIC: 4931 Electric & Other Services Combined

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 (Subject) CIK: 0000052485 (see all company filings)

IRS No.: 420331370 | State of Incorp.: IA | Fiscal Year End: 1231
Type: FWP | Act: 34 | File No.: 333-159478 | Film No.: 10890266
SIC: 4931 Electric & Other Services Combined