700 West Mineral Littleton, CO 80120

Disclosure Date: February 7, 2000
Summary:	This update primarily changes the name of the service from MegaBit IDSL to Qwest IDSL. * An asterisk in the left margin denotes a change or addition from the previous This Qwest disclosure is for a service called Qwest IDSL. This service will provide a nominal 144 Kbit/s always on connection to a Qwest DSL Host. The physical layer connection from the customer to the network is based on the ANSI standard T1.601.1992 Ð Telecommunications ISDN Basic Access Interface for use on Metallic Loops for application on the Network Side of the NT, Layer 1 Specification. Information on how Qwest has implemented this interface in a private line mode can be found in Qwest Technical Publication 77399. Above the physical layer the customer will be required to have Point to Point Protocol (PPP) in High-level Data Link Control (HDLC) Framing as described in Request For Comment (RFC) 1549.
Locations and Timing of Deployment:	Locations where Qwest IDSL is planned or currently available can be found in Attachment 1. If the interface changes in the future, Qwest will issue a new Network Disclosure. In addition, any new deployment locations will be added to the Qwest web site at http://www.qwest.com/disclosures/ in disclosure #448
Pricing:	Order and pricing of this service will be offered under tariff in the locations identified in Attachment 1.
Interface Requirements:	Interface specifications are contained in the following documents: ANSI-T1.601-1992 Telecommunications Ð Integrated Services Digital Network (ISDN) Ð Basic Access Interface for Use on Metallic Loops for Application on the Network Side of the NT (Layer 1 Specification) American National Standards Institute document can be obtained by contacting: American National Standards Institute, Inc. 11 West 42nd Street New York, NY 10036 or call 1-212-642-4900 or at www.ansi.org A summarization of technical information of how the ISDN "U" interface is utilized for IDSL Private Line Service will be contained in Qwest Technical Publication 77399. This document is available from http://www.qwest.com/techpub/ Information on the end to end service can be found in Qwest Technical Publication 77392. This document is available from http://www.qwest.com/techpub/ All RFCs are available on the Internet at various web pages. One source is the RFC Editors Homepage at URL http://www.rfc-editor.org/
Additional Information:	Any customer premises equipment vendor or manufacturer wanting to offer products and services to interface with Qwest IDSL service from Qwest may request additional information by contacting: Michelle Y. Walker Product Manager 1801 California Room 800 Denver, CO 80202 (303) 308-5083
OFFICE NAME SWITCH ID AVAILABILITY Arizona CACTUS PHNXAZCA NOW CHANDLER MAIN CHNDAZMA NOW CHANDLER WEST CHNDAZWE NOW CRAYCROFT TCSNAZCR NOW FLOWING WELLS TCSNAZFW NOW GILBERT MESAAZGI NOW GLENDALE GLDLAZMA NOW GREENWAY PHNXAZGR NOW MCCLINTOCK TEMPAZMC NOW MESA MAIN MESAAZMA NOW PHOENIX EAST PHNXAZEA NOW PHOENIX MAIN PHNXAZMA NOW PHOENIX NORHTHEAST PHNXAZNE NOW PHOENIX NORTH PHNXAZNO NOW PHOENIX NORTHWEST PHNXAZNW NOW PHOENIX SOUTHEAST PHNXAZSE NOW PHOENIX WEST PHNXAZWE NOW RINCON TCSNAZRN NOW SCOTTSDALE SCDLAZMA NOW SCOTTSDALE SHEA SCDLAZSH NOW SUNNYSLOPE PHNXAZSY NOW SUPERSTITION MAIN SPRSAZMA NOW SUPERSTITION WEST SPRSAZWE NOW TEMPE TEMPAZMA NOW THUNDERBIRD SCDLAZTH NOW TUCSON EAST TCSNAZEA NOW TUCSON MAIN TCSNAZMA NOW TUCSON NORTH TCSNAZNO NOW Colorado ARVADA ARVDCOMA NOW AURORA AURRCOMA NOW GUNBARREL BLDRCOGB NOW BOULDER MAIN BLDRCOMA NOW BROOMFIELD BRFDCOMA NOW COLORADO SPRINGS MAIN CLSPCOMA NOW PIKEVIEW CLSPCOPV NOW CAPITOL HILL DNVRCOCH NOW COLUMBINE DNVRCOCL NOW COTTONWOOD DNVRCOCW NOW DRY CREEK DNVRCODC NOW DENVER EAST DNVRCOEA NOW DENVR MAIN DNVRCOMA NOW DENVER NORTHEAST DNVRCONE NOW DENVER NORTH DNVRCONO NOW DENVER SOUTHEAST DNVRCOSE NOW SMOKEY HILL DNVRCOSH NOW SULLIVAN DNVRCOSL NOW DENVER SOUTH DNVRCOSO NOW DENVER SOUTHWEST DNVRCOSW NOW DENVER WEST DNVRCOWS NOW ENGLEWOOD ENWDCOMA NOW ERIE ERIECOMA NOW EVERGREEN EVRGCOMA NOW HARMONY FTCLCOHM NOW FT COLLINS MAIN FTCLCOMA NOW GOLDEN MAIN GLDNCOMA NOW GREELEY MAIN GRELCOMA NOW LAKEWOOD LKWDCOMA NOW LONGMONT LNMTCOMA NOW HIGHLANDS RANCH LTTNCOHL NOW LITTLETON LTTNCOMA NOW LOVELAND LVLDCOMA NOW NORTHGLENN NGLNCOMA NOW IOWA AMES WEST AMESIAWS NOW ANKENY ANKNIACO NOW CEDAR PAPIDS DOWNTOWN CDRRIADT NOW DAVENPORT DOWN TOWN DVNPIADT NOW DES MOINES DOWNTOWN DESMIADT NOW DES MOINES-ASHWORTH DESMIAAW NOW DES MOINES NORTHWEST DESMIANW NOW DES MOINES WEST DESMIAWS NOW Idaho BOISE MAIN BOISIDMA NOW BOISE NORTHWEST BOISIDNW NOW BOISE SOUTHWEST BOISIDSW NOW BOISE WEST BOISIDWE NOW EAGLE EAGLIDNM NOW MERIDIAN MRDNIDMA NOW * NAMPA NMPAIDMA NOW Minnesota NORMANDALE BLTNMNNO NOW BLOOMINGTON SOUTH BLTNMNSO NOW BURNSVILLE BRVLMNBU NOW COTTAGE GROVE CTGVMNCG NOW LEXINGTON EAGNMNLB NOW EDEN PRAIRIE EDPRMNEP NOW GLEN PRAIRIE EDPRMNGP NOW EXCELSIOR EXCLMNEX NOW ORCHARD GLVYMNOR NOW HOPKINS HPKNMNHO NOW PILLSBURY MPLSMNPI NOW MAPLEWOOD MPWDMNMA NOW PARK ROW NSPLMNPR NOW FERNBROOK PLMOMNFE NOW ROCHESTER ROCHMNRO NOW RICE SHVWMNRI NOW ST CLOUD STCDMNTO NOW BEECH STPLMNBE NOW STILLWATER STWRMNST NOW WHITE BEAR LAKE WBLKMNWB NOW SAINT PAUL WEST (OAKDALE) WSPLMNWS NOW WAYZATA WYZTMNWA NOW Nebraska OMAHA DOUGLAS OMAHNENW NOW OMAHA 84TH OMAHNE84 NOW OMAHA 90TH OMAHNE90 NOW OMAHA 135TH OMAHNECE NOW Oregon ALBANY ALBYOR63 NOW CORVALLIS CRVSOR65 NOW EUGENE RIVER ROAD EUGNOR28 NOW EUGENE 10TH AVE EUGNOR53 NOW MILWAUKIE MLWKOR17 NOW ALPINE PTLDOR11 NOW ATLANTIC PTLDOR12 NOW BELMONT PTLDOR13 NOW BUTLER PTLDOR14 NOW PROSPECT PTLDOR18 NOW PORTLAND CAPITOL PTLDOR69 NOW SALEM10 (KEIZER) SALMOR59 NOW SPRINGFIELD SPFDOR01 NOW South Dakota SIOUX FALLS MAIN SXFLSDCO NOW SIOUX FALLS SOUTHEAST SXFLSDSE NOW Utah BOUNTIFUL BNTFUTMA NOW CLEARFIELD CLFDUTMA NOW HOLLADAY HLDYUTMA NOW KAYSVILLE KYVLUTMA NOW MIDVALE MDVAUTMA NOW MURRAY MRRYUTMA NOW OGDEN MAIN OGDNUTMA NOW OREM OREMUTMA NOW SALT LAKE CITY MAIN SLKCUTMA NOW SALT LAKE CITY SOUTH SLKCUTSO NOW PROVO MAIN PROVUTMA NOW WASHINGTON AUBURN AUBNWA01 NOW BELLINGHAM RGENT BLHMWA01 NOW BELLEVUE GLENCOURT BLLVWAGL NOW BELLEVUE SHERWOOD BLLVWASH NOW BREMERTON ESSEX BMTNWA01 NOW FEDERALWAY FDWYWA01 NOW ISSAQUAH ISQHWAEX NOW KENT-ULRICK KENTWA01 NOW KENT-MERIDIAN KENTWAME NOW KENT-O-BRIEN KENTWAOB NOW OLYMPIA-WHITEHALL OLYMWA02 NOW ORCHARD ORCHWA01 NOW PUYALLUP PYLPWA01 NOW RENTON RNTNWA01 NOW SPKN RIVRSIDE SPKNWA01 NOW SPKN WALNUT SPKNWAWA NOW SEATTLE EAST STTLWA03 NOW SEATTLE ATWATER STTLWA05 NOW SEATTLE MAIN STTLWA06 NOW SEATTLE CAMPUS STTLWACA NOW SEATTLE ELLIOTT STTLWAEL NOW SEATTLE LAKE VIEW STTLWALA NOW SEATTLE SUNSET STTLWASU NOW TACOMA FAWCETT TACMWAFA NOW TAC GREENFIELD TACMWAGF NOW TAC JUNIPER TACMWAJU NOW TAC WAVERLY-RMT (2) TACMWAWA NOW TACOMA WAVERLY (7) TACMWAWV NOW VANCOUVER OXFORD VANCWA01 NOW

NOTE: This announcement has been released in accordance with the FCC Rule 51.333(a), Certification of Short Term Public Notice.

Questions regarding Network Disclosure information can be referred to the individual listed on the Disclosure Announcement, or contact Jamal Boudhaouia, CenturyLink's Manager of Network Disclosures at Jamal.Boudhaouia@CenturyLink.com or (303) 707-8561.