NPA
NXX
CLLI
City, ST
Telco
410
457
DRTNMDDRRS0
DARLINGTON
VERIZON MARYLAND INC.
443
267
BLTMMDFMDS0
DARLINGTON
TELEPORT COMMUNICATIONS GROUP AMERICA INC. - MD
443
585
BLTMMDDN4MD
DARLINGTON
GLOBAL NAPS SOUTH INC. - MD
608
482
MDSNWIPUCM4
DARLINGTON
UNITED STATES CELLULAR CORP. - WISCONSIN
608
776
DRTNWIXARS0
DARLINGTON
CENTURYTEL OF CENTRAL WISCONSIN LLC
660
666
DRTNMOXARS0
DARLINGTON
GRAND RIVER MUTUAL TELEPHONE CO.
724
827
DRTNPAXDRS0
DARLINGTON
ALLTEL PENNSYLVANIA INC.
765
790
IPLTINMADS1
DARLINGTON
TCG AMERICA INDIANA INC.
765
794
DRTNIN01RSA
DARLINGTON
AMERITECH INDIANA
843
391
FLRNSCTSRS0
DARLINGTON
ITC DELTA COM - SC
843
393
DRTNSCMA39F
DARLINGTON
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL
843
395
DRTNSCMA39F
DARLINGTON
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL
843
398
DRTNSCMA39F
DARLINGTON
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL