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Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000107832-07-000078
Filing Date
2007-05-04
Accepted
2007-05-04 13:35:04
Documents
15
Period of Report
2007-03-31

Document Format Files

Seq Description Document Type Size
1 FORM 10Q 03/31/07 form10q033107.htm 10-Q 1472155
2 FORM 10Q 03/31/07 EXHIBIT 12.1 exhibit12pt1.htm EX-12 16650
3 FORM 10Q 03/31/07 EXHIBIT 12.2 exhibit12pt2.htm EX-12 15559
4 FORM 10Q 03/31/07 EXHIBIT 12.3 exhibit12pt3.htm EX-12 16301
5 FORM 10Q 03/31/07 EXHIBIT 31.1 exhibit31pt1.htm EX-31 13916
6 FORM 10Q 03/31/07 EXHIBIT 31.2 exhibit31pt2.htm EX-31 13936
7 FORM 10Q 03/31/07 EXHIBIT 31.3 exhibit31pt3.htm EX-31 12710
8 FORM 10Q 03/31/07 EXHIBIT 31.4 exhibit31pt4.htm EX-31 12240
9 FORM 10Q 03/31/07 EXHIBIT 31.5 exhibit31pt5.htm EX-31 12708
10 FORM 10Q 03/31/07 EXHIBIT 31.6 exhibit31pt6.htm EX-31 12239
11 FORM 10Q 03/31/07 EXHIBIT 32.1 exhibit32pt1.htm EX-32 3047
12 FORM 10Q 03/31/07 EXHIBIT 32.2 exhibit32pt2.htm EX-32 2913
13 FORM 10Q 03/31/07 EXHIBIT 32.1 exhibit32pt3.htm EX-32 3007
15 GRAPHIC img1.jpg GRAPHIC 2654
16 FORM 10Q 03/31/07 PDF form10q033107.pdf 10-Q 259212
  Complete submission text file 0000107832-07-000078.txt   1971800
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: 10-Q | Act: 34 | File No.: 001-04117 | Film No.: 07819365
SIC: 4931 Electric & Other Services Combined

Mailing Address 4902 N BILTMORE LANE PO BOX 77007 MADISON WI 53707-1007
Business Address 4902 NORTH BILTMORE LANE PO BOX 77007 MADISON WI 53707-1007 608-4583314
WISCONSIN POWER & LIGHT CO (Filer) CIK: 0000107832 (see all company filings)

IRS No.: 390714890 | State of Incorp.: WI | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 000-00337 | Film No.: 07819364
SIC: 4931 Electric & Other Services Combined

Mailing Address 4902 NORTH BILTMORE LANE PO BOX 77007 MADISON WI 53707-1007
Business Address 4902 NORTH BILTMORE LANE PO BOX 77007 MADISON WI 53707-1007 608-458-3314
ALLIANT ENERGY CORP (Filer) CIK: 0000352541 (see all company filings)

IRS No.: 391380265 | State of Incorp.: WI | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-09894 | Film No.: 07819363
SIC: 4931 Electric & Other Services Combined