EXHIBIT (a)(5)(N)
                                   VERIO INC.

        NOTICE REGARDING TREATMENT OF UNVESTED OPTIONS IN TENDER OFFER
                             UNDER THE VERIO INC.
         1996 STOCK OPTION PLAN, 1997 CALIFORNIA STOCK OPTION PLAN AND
                           1998 STOCK INCENTIVE PLAN
(Applicable to Option Agreements with "double trigger" acceleration of vesting
                                  provision)

1.   NTT Communications Corporation ("NTT Communications") has made a tender
     offer to purchase all outstanding Common Stock of Verio Inc. ("Verio") for
     cash at a price of $60.00 per share (the "Offer"). This Notice explains the
     effects of the Offer on the portion of your outstanding options to purchase
     shares of Common Stock of Verio that previously were granted to you under
     the terms of Verio's 1996 Stock Option Plan, 1997 California Stock Option
     Plan, and/or 1998 Stock Incentive Plan (as applicable, collectively and
     individually, the "Plan") and your Option Agreement(s) and that remain
     unvested immediately prior to the completion of the Offer by NTT
     Communications (the "Unvested Options"). Unless otherwise defined herein,
     the terms defined in your Option Agreement(s) and the Plan shall have the
     same defined meanings in this Notice.

2.   Your Unvested Options automatically will be canceled in exchange for the
     right to receive cash in an aggregate amount equal to (A) the product of
     (1) the number of shares of Common Stock subject to your Unvested Options
     and (2) the excess, if any, of the $60.00 per share Offer price over the
     applicable exercise price per share for the purchase of Common Stock
     subject to your Unvested Options, minus (B) all applicable federal, state
     and local taxes required to be withheld in respect of such payment. This
     cash will be paid to you in installments, based on the current vesting
     schedule applicable to your Unvested Options. These installments will be
     paid after the end of the calendar month which includes the date on which
     all or any portion of your Unvested Options would have become exercisable
     pursuant to the terms of your Option Agreement(s) had your Unvested Options
     not been canceled, and the amount of each installment will be based on the
     number of Unvested Options that would have become exercisable on that date.
     Your right to receive the cash is subject to the same terms and conditions
     (including vesting and forfeiture) as your Unvested Options, as set forth
     in your Option Agreement(s) and the Plan.

3.   Under the terms of your current Option Agreement(s), if your Continuous
     Status as an Employee, Director or Consultant is terminated by Verio
     without Cause (as defined in your Option Agreement) or voluntarily by you
     with Good Reason (as defined in your Option Agreement) within twelve (12)
     months after the completion of a Corporate Transaction (as defined in your
     Option Agreement), your Unvested Options would automatically become
     exercisable. (We refer to this generally as "double trigger" acceleration.)
     The Offer constitutes a Corporate Transaction as defined under the Option
     Agreement. This same provision will apply following the completion of the
     Offer, so that if your Continuous Status as an Employee, Director or
     Consultant is terminated by Verio without Cause (as defined in your Option
     Agreement) or voluntarily by you with Good Reason (as defined in your
     Option


     Agreement) within twelve (12) months after the completion of the Offer, any
     of the aggregate cash amount described in paragraph 2 above that remains
     unpaid at that time will become immediately payable.

4.   Upon completion of the Offer, you will receive a written amendment to your
     Option Agreement(s) documenting your rights to receive cash as described in
     this Notice. Also upon completion of the Offer, the Plan will be terminated
     and you will have no further rights to acquire the Verio Common Stock
     represented by your Unvested Options.

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