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Form S-3ASR - Automatic shelf registration statement of securities of well-known seasoned issuers:
SEC Accession No. 0001193125-11-343983
Filing Date
2011-12-16
Accepted
2011-12-16 16:14:59
Documents
15
Effectiveness Date
2011-12-16

Document Format Files

Seq Description Document Type Size
1 S-3ASR d271663ds3asr.htm S-3ASR 627523
2 EX-5.1 d271663dex51.htm EX-5.1 17892
3 EX-5.2 d271663dex52.htm EX-5.2 12170
4 EX-5.3 d271663dex53.htm EX-5.3 12722
5 EX-5.4 d271663dex54.htm EX-5.4 10536
6 EX-5.5 d271663dex55.htm EX-5.5 11689
7 EX-23.6 d271663dex236.htm EX-23.6 1649
8 EX-23.7 d271663dex237.htm EX-23.7 1558
9 EX-23.8 d271663dex238.htm EX-23.8 1576
10 EX-24.1 d271663dex241.htm EX-24.1 24808
11 EX-24.2 d271663dex242.htm EX-24.2 25232
12 EX-24.3 d271663dex243.htm EX-24.3 25232
13 EX-25.1 d271663dex251.htm EX-25.1 61252
14 EX-25.2 d271663dex252.htm EX-25.2 52244
15 EX-25.3 d271663dex253.htm EX-25.3 57071
  Complete submission text file 0001193125-11-343983.txt   946067
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: S-3ASR | Act: 33 | File No.: 333-178577-02 | Film No.: 111266526
SIC: 4931 Electric & Other Services Combined

Mailing Address 4902 N BILTMORE LANE SUITE 1000 MADISON WI 53718-2148
Business Address 4902 NORTH BILTMORE LANE SUITE 1000 MADISON WI 53718-2148 608-458-3311
WISCONSIN POWER & LIGHT CO (Filer) CIK: 0000107832 (see all company filings)

IRS No.: 390714890 | State of Incorp.: WI | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-178577-01 | Film No.: 111266525
SIC: 4931 Electric & Other Services Combined

Mailing Address 4902 NORTH BILTMORE LANE SUITE 1000 MADISON WI 53718-2148
Business Address 4902 NORTH BILTMORE LANE SUITE 1000 MADISON WI 53718-2148 608-458-3311
ALLIANT ENERGY CORP (Filer) CIK: 0000352541 (see all company filings)

IRS No.: 391380265 | State of Incorp.: WI | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-178577 | Film No.: 111266524
SIC: 4931 Electric & Other Services Combined