As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

 2/13/07  EnerTech Cap Partners II, L.P.    SC 13G/A               1:81K  Arbinet Corp.                     Dr EDGAR & Consulting/FA 
          Ecp II Interfund L.P.³
          Ecp II Management, L.P.³
          Ecp II Management, LLC³
          Enertech Capital Partners II, L.P.³
          Mark J. Denino³
          Robert E. Keith, Jr.³
          Scott B. Ungerer³
          William G. Kingsley³
 2/14/06‡ EnerTech Cap Partners II, L.P.    SC 13G/A    2/13/06    1:73K  Arbinet Corp.                     Dr EDGAR & Consulting/FA 
          Ecp II Interfund L.P.³
          Ecp II Management, L.L.C.³
          Ecp II Management, L.P.³
          Enertech Capital Partners II, L.P.³
          Mark J. Denino³
          Robert E. Keith, Jr.³
          Scott B. Ungerer³
          William G. Kingsley³

____________
‡	A non-Insider-Ownership Filing that was accepted after the SEC “closed” at 5:30:00pm ET.  The legal “Filed As Of” date may be the next, or another, day.
¹	Filing/Form Type:  -K
	SC 13G	Statement of Acquisition of Beneficial Ownership by a “Passive” Investor — Schedule 13G.
	/A	Amendment to, or Amended version of, a previous Filing of this Type.
³	Group Member:  A Registrant or non-Registrant party to this Filing made by a Group.