COGENT COMMUNICATIONS GROUP INC
EXHIBIT 19.19
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<DESCRIPTION>EXHIBIT 19.19
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<P ALIGN="RIGHT"><FONT SIZE=2><A
NAME="lk1265_exhibit_10.19"> </A>
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<BR></FONT><FONT SIZE=2><B>Exhibit 10.19    <BR>  </B></FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><B>[COGENT LETTERHEAD]  </B></FONT></P>

<P ALIGN="RIGHT"><FONT SIZE=2>1015 31<SUP>st</SUP> Street, NW<BR>
Suite 330<BR>
Washington, DC 20007<BR>
Tel: 202-295-4208<BR>
Confidential Fax: 202-342-8269 </FONT></P>

<P><FONT SIZE=2>October&nbsp;11,
2000 </FONT></P>

<BR>

<P><FONT SIZE=2>Helen
Lee </FONT></P>

<P><FONT SIZE=2>Dear
Helen, </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cogent
Communications is offering you the position of Chief Financial Officer. This position will offer an annual compensation of $220,000. This role is defined as an "exempt" position
and will not be eligible for overtime compensation. Base salary will be paid semi-monthly. </FONT></P>


<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In
addition to the cash compensation you receive, Cogent will issue to you options to purchase 450,000 shares of common stock in the company at a strike price of $1.50.
Twenty-five percent (25%) of these options will vest immediately upon hire. The remainder will vest quarterly over the next three (3)&nbsp;years so that you will be fully vested after
three (3)&nbsp;years of employment. In order to receive these options you must sign Cogent's option agreement at the time of your employment. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cogent
will periodically perform employee evaluations at minimum intervals of 12&nbsp;months commencing within 18&nbsp;months of your employment. These reviews will be utilized to
evaluate your compensation package relative to the market for similar level individuals at organizations of comparable stage of development and market opportunity to Cogent. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In
the event of Constructive Termination Without Cause, you will receive 6&nbsp;months salary against $220,000, six months of benefits coverage, all vested shares and shares to be
vested in the quarter of termination. For purposes of this Agreement, "Constructive Termination Without Case" shall mean (1)&nbsp;your employment as Chief Financial Officer of Cogent being
terminated by Cogent (other than for Cause); (2)&nbsp;any of your titles or responsibilities being reduced in any material respect by Cogent (other than for Cause), without your prior consent and
not based on merit; and (3)&nbsp;your base salary or benefits being reduced by any material amount. In the event of a Change of Control, in addition to the conditions mentioned above, you will
receive 100% of your unvested shares at the $1.50 strike price. Upon Initial Public Offering (IPO), 50% of the remaining unvested shares will vest immediately. Those remaining will vest on the
schedule listed above. Also, it is explicitly stated that sections 14B&nbsp;&amp; 22 of the stock option agreement will not be apply to this optionee. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In
order to compensate you for moving expenses associated with this position, Cogent proposes a $45,000 moving budget with a commitment on your part to relocate your principal residence
to the company's headquarter location in Washington, DC within 9&nbsp;months. During the intervening period, you are committed to spending 5&nbsp;days per week at the company's headquarters or on
company related travel and bearing all non-company related travel and lodging expenses associated with that commitment from the budget mentioned above. </FONT></P>


<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As
a member of Cogent's team, you will be entitled to company funded health care insurance, dental coverage, and life insurance. The company has also implemented a 401(k) retirement plan
that is corporately administered, however, it requires individual contributions on a non-matching basis by individual participants. You will be eligible for 3 weeks paid vacation annually.
Additionally, the company has 6 fixed major holidays and 2 discretionary floating holidays to be chosen by you. </FONT></P>

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<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Your
employment date will be November&nbsp;20th, 2000, or at a mutually agreed to date between yourself and the company. Also, as a condition of employment, you will be required to
sign Cogent's standard agreement providing for invention disclosure and assignment, limitation of your right to compete with Cogent if you leave, and non-disclosure of confidential
information. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We
look forward to having you join our team and build the most advanced next generation network for high-speed Internet services. This offer remains in effect through
October&nbsp;20th, 2000 at 10:00am. If you have any further questions, please give me a call at 202-295-4208. </FONT></P>

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Sincerely,</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
<TD WIDTH="32%"><FONT SIZE=2><BR>
&nbsp;</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
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&nbsp;</FONT></TD>
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/s/ Dave Schaeffer</FONT></TD>
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&nbsp;</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
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&nbsp;</FONT></TD>
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Dave Schaeffer<BR>
CEO</FONT></TD>
<TD WIDTH="3%" VALIGN="TOP"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
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&nbsp;</FONT></TD>
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&nbsp;</FONT></TD>
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Accepted</FONT></TD>
<TD WIDTH="3%"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
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&nbsp;</FONT></TD>
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&nbsp;</FONT></TD>
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/s/ H. Helen Lee</FONT><HR NOSHADE><FONT SIZE=2> Helen Lee</FONT></TD>
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Oct.&nbsp;20, 2000</FONT><HR NOSHADE><FONT SIZE=2> Date</FONT></TD>
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&nbsp;</FONT></TD>
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