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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549
FORM 12b-25
Commission File Number: 000-21091
NOTIFICATION OF LATE FILING
[X] Form 10-K for period ended December 31, 1998
Nothing in this form shall be construed to imply that the Commission has
verified any information contained herein.
If the notification relates to a portion of the filing checked above, identify
the Item(s) to which the notification relates:
PART I - REGISTRANT INFORMATION
Full Name of Registrant: Advanced Radio Telecom Corp.
Former name if applicable:
Address of Principal Executive Office: 500 108th Avenue, NE Suite 2600
City, State and Zip Code: Bellevue, Washington 98004
PART II - RULES 12b-25(b) and (c)
If the subject report could not be filed without unreasonable effort or expense
and the registrant seeks relief pursuant to Rule 12-b-25(b), the following
should be completed. (Check box if appropriate). [X]
(a) The reasons described in reasonable detail in Part III of this form
could not be eliminated without unreasonable effort or expense;
(b) The subject annual report, semi-annual report, transition report on
Form 10-K, Form 20-F, 11-K or Form N-SAR, or portion thereof will be
filed on or before the fifteenth calendar day following the prescribed
due date; or the subject quarterly report or transition report on Form
10-Q, or portion thereof will be filed on or before the fifth calendar
day following the prescribed due date; and
(c) The accountant's statement or other exhibit required by Rule 12b-25(c)
has been attached if applicable.
PART III - NARRATIVE
State below in reasonable detail the reasons why Form 10-K, 11-K, 20-F, 10-Q, N-
SAR, or the transition report portion thereof could not filed within the
prescribed time period.
The Annual Report on Form 10-K could not be filed within the prescribed
period without unreasonable effort or expense.
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PART IV - OTHER INFORMATION
(1) Name and telephone number of person to contact in regard to this
notification
Thomas M. Walker (425) 990-1669
(Name) (Telephone Number)
(2) Have all other periodic reports required under section 13 or 15(d) of
the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act
of 1940 during the preceding 12 months or for such shorter period that the
registrant was required to file such report(s) been filed? If the answer is no,
identify report(s).
[X] Yes [ ] No
(3) Is it anticipated that any significant change in results of operations
from the corresponding period for the last fiscal year will be reflected by the
earnings statements to be included in the subject report or portion thereof?
[ ] Yes [X] No
If so; attach an explanation of the anticipated change, both narratively
and quantitatively, and, if appropriate, state the reasons why a reasonable
estimate of the results cannot be made.
Advanced Radio Telecom Corp.
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(Name of Registrant as specified in charter)
has caused this notification to be signed on its behalf by the undersigned
thereunto duly authorized.
Date: April 1, 1999 By: /s/Robert S. McCambridge
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Robert S. McCambridge
Executive Vice President and Chief
Financial Officer
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