Cogent Communications Holdings, Inc. (CCOI): SC 13G/A filed Feb 2, 2012

Name: Cogent Communications Holdings, Inc. SC 13G/A (0000919574-12-000382)
Creator: Cogent Communications Holdings, Inc.
Published: 2012-02-02

Form type: SC 13G/A
Filing date: Feb 2, 2012
Accession number: 0000919574-12-000382
Filer: Cogent Communications Holdings, Inc. (CIK 1158324)