Exhibit 31.2
CERTIFICATION OF CHIEF FINANCIAL OFFICER
PURSUANT TO RULE 15d-14(a) OF THE SECURITIES EXCHANGE ACT OF 1934
I, Ken desGarennes, Chief Financial Officer of Zayo Group, LLC, certify that:
| 1. | I have reviewed this Amendment No. 1 to Quarterly Report on Form 10-Q of Zayo Group, LLC; and |
| 2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report. |
| Date: February 24, 2012 | By: | /s/ Ken desGarennes | ||
| Ken desGarennes | ||||
| Chief Financial Officer |
