ALESTRA

FY: Dec 31 2012

FY: Dec 31 2011

FY: Dec 31 2010

FY: Dec 31 2010

FY: Dec 31 2009

FY: Dec 31 2008

FY: Dec 31 2007

FY: Dec 31 2006

FY: Dec 31 2005

FY: Dec 31 2004

FY: Dec 31 2003

FY: Dec 31 2003

FY: Dec 31 2002

FY: Dec 31 2001

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Certification of termination of registration of a class of securities (Section 12(b))

Prospectus Supplement for Primary Offering

Notice of Effectiveness

Registration statement for securities of certain foreign private issuers issued in certain business combination transactions (amendment)

Registration statement for securities of certain foreign private issuers issued in certain business combination transactions

Registration of Securities on Exchange

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Registration statement for securities of certain foreign private issuers issued in certain business combination transactions (amendment)

Registration statement for securities of certain foreign private issuers issued in certain business combination transactions (amendment)

Withdrawal of a registration statement

Registration statement for securities of certain foreign private issuers issued in certain business combination transactions

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Registration statement for securities of certain foreign private issuers issued in certain business combination transactions (amendment)

Registration statement for securities of certain foreign private issuers issued in certain business combination transactions (amendment)

Registration statement for securities of certain foreign private issuers issued in certain business combination transactions (amendment)

Registration statement for securities of certain foreign private issuers issued in certain business combination transactions (amendment)

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

No description available

Letter from the SEC

Letter from the SEC

Correspondence with the SEC

No description available

Post-effective amendment filed solely to add exhibits

No description available