Opposition parties have so far provided names of 45 ridings which received reports of false or misleading calls during the 2011 federal election.

Conservative MP Pierre Poilievre says the Conservatives have reports of "troubling" phone calls hitting Conservative campaigns in 15 ridings. A party spokesman hasn't responded to a request for the list.

Ridings cited by the Liberal Party:

- Cambridge (Ont.)

- Egmont (P.E.I.)

- Eglinton-Lawrence (Ont.)

- Etobicoke Centre (Ont.)

- Guelph (Ont.)

- Haldimand-Norfolk (Ont.)

- Hamilton East-Stoney Creek (Ont.)

- Kingston and the Islands (Ont.)

- Kitchener-Conestoga (Ont.)

- Kitchener-Waterloo (Ont.)

- Lac-Saint-Louis (Que.)

- London North Centre (Ont.)

- London West (Ont.)

- Mississauga East-Cooksville (Ont.)

- Mount Royal (Que.)

- Niagara Falls (Ont.)

- Nipissing-Timiskaming (Ont.)

- Oakville (Ont.)

- Ottawa-Orléans (Ont.)

- Ottawa West-Nepean (Ont.)

- Parkdale-High Park (Ont.) (also on the NDP list)

- Perth-Wellington (Ont.)

- Pierrefonds-Dollard (Que.)

- Saint Boniface (Man.)

- St. Catharines (Ont.)

- St. Paul's (Ont.)

- Simcoe-Grey (Ont.)

- Sudbury (Ont.) (also on the NDP list)

- Sydney-Victoria (N.S.)

- Vancouver South (B.C.)

- Wascana (Sask.)

- Wellington-Halton Hills (Ont.)

- Willowdale (Ont.)

- Winnipeg South Centre (Man.)

Ridings cited by the NDP:

- Davenport (Ont.)

- Edmonton-Centre (Alta.)

- Edmonton East (Alta.)

- Elmwood-Transcona (Man.)

- Essex (Ont.)

- Ottawa Centre (Ont.)

- Parkdale-High Park (Ont.) (also on Liberal list)

- South Shore-St. Margaret's (N.S.)

- Sudbury (Ont.) (also on Liberal list)

- Thunder Bay-Superior North (Ont.)

- Windsor-Tecumseh (Ont.)

- Winnipeg South (Man.)

Green Party Leader Elizabeth May says her riding also had false calls:

- Saanich-Gulf Islands (B.C.)

Conservative MP Dean Del Mastro added his own riding to the list:

- Peterborough (Ont.)