203 (Connecticut)

734 Blocks Found in Area 203 - List All

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Block Name Assigned To Switches 203-929 AT&T EAST HNTNCT00DS0 203-204 TCG LEVEL 3 HRFRCTCRDS0 SMFRCTPUDS0 203-513 AT&T MOBILITY COMCAST DIGITAL PHONE LEVEL 3 AT&T LOCAL AT&T INTERNET SERVICES BANDWIDTH.COM BRPTCT04GT0 MDTWCTNICM0 BRSTCTAHPS0 NWHNCT02Y8X CHSHCT02DS0 NWHNCT024MD HRFRCT0379Z 203-258 VERIZON WIRELESS WLFRCTAICM5 203-781 AT&T EAST T-MOBILE NWHNCT03DS0 BLFDCTAP2MD 203-844 LEVEL 3 VERIZON BUSINESS SMFRCTPUDS0 SMFRCTDSDS0 203-913 VERIZON WIRELESS WLFRCTAICM5 203-910 VERIZON WIRELESS WLFRCTAICM3 203-890 AT&T EAST SMFRCT01DS1 SMFRCT01DS2 203-332 AT&T EAST BRPTCT01DS0 203-360 METROPCS WIRELESS NRWLCT029MD 203-831 AT&T EAST NRWLCT02DS2 203-543 T-MOBILE BLFDCTAP2MD 203-615 AT&T EAST VERIZON WIRELESS AT&T MOBILITY BRPTCT01DS0 WLFRCTAICM5 MDTWCTNICM0 203-314 VERIZON WIRELESS WLFRCTAICM3 203-377 AT&T EAST SRFRCT00DS0 203-214 AT&T MOBILITY BRPTCT04CM3 203-779 ONE COMMUNICATIONS COMCAST DIGITAL PHONE PAETEC COMMUNICATIONS SPRINT PCS HRFRCT0370Z BRSTCTAHPS0 SMFRCTATW51 WLFRCTXBCM1 203-713 LEVEL 3 ONE COMMUNICATIONS GLOBAL CROSSING LOCAL SERVICES INC AT&T INTERNET SERVICES NWHNCT02Y8X SMFRCT0162Z SMFRCTQIDS0 NWHNCT024MD 203-799 AT&T EAST ORNGCT00RS0 203-252 AT&T MOBILITY T-MOBILE CONVERSENT COMMUNICATIONS CABLEVISION LIGHTPATH BRPTCT04GT0 BLFDCTAP2MD NWHNCTGODS0 NRWLCTCVDS0 203-388 VERIZON BUSINESS SMFRCTDSDS0 203-960 CABLEVISION LIGHTPATH NRWLCTCVDS0 203-918 AT&T MOBILITY BRPTCT04GT0 203-571 GLOBAL CROSSING LOCAL SERVICES INC CONVERSENT COMMUNICATIONS SPRINT PCS AT&T LOCAL SMFRCTQIDS0 NWHNCTGODS0 WLFRCTXBCM1 CHSHCT02DS0 203-534 AT&T EAST SPRINT NEXTEL BRPTCT01DS0 BRPTCT230MD 203-489 CABLEVISION LIGHTPATH NRWLCTCVDS0 203-285 T-MOBILE TCG LEVEL 3 AT&T MOBILITY BLFDCTAP2MD HRFRCTCRDS0 SMFRCTPUDS0 BRPTCT04CM3 203-820 SPRINT PCS WLFRCTXBCM1 203-671 VERIZON WIRELESS WLFRCTAICM3 203-756 AT&T EAST WTRBCT00DS0 203-796 AT&T EAST DNBRCT00DS1 203-867 AT&T EAST NWHNCT03DS3 203-830 AT&T EAST AT&T MOBILITY DNBRCT00DS1 BRPTCT04CM3 203-236 AT&T EAST WTRBCT00DS0 203-546 AT&T MOBILITY TCG CHARTER TELEPHONE GLOBAL NAPS BRPTCT04GT0 HRFRCTCRDS0 WLMNCT131MD NWHNCT02Y4X 203-784 AT&T EAST NWHNCT03DS3 203-690 T-MOBILE LEVEL 3 TCG BLFDCTAP2MD NWHNCT02Y8X SMFRCTCTDS0 203-744 AT&T EAST BANDWIDTH.COM DNBRCT00DS1 HRFRCT0379Z 203-734 AT&T EAST DRBYCT00DS0 203-351 AT&T EAST SMFRCT01DS2 203-296 T-MOBILE CABLEVISION LIGHTPATH VERIZON BUSINESS BLFDCTAP2MD NRWLCTCVGT1 NRWLCT028MD SMFRCTDSDS0 203-608 PAETEC COMMUNICATIONS SMFRCTATW51 203-704 SPRINT NEXTEL LEVEL 3 SPRINT PCS NWHNCT02Y7X NWHNCT02Y8X WLFRCTXBCM0 203-617 LEVEL 3 T-MOBILE AT&T LOCAL ONE COMMUNICATIONS SPRINT PCS SMFRCTPUDS0 BLFDCTAP2MD CHSHCT02DS0 SMFRCT0162Z WLFRCTXBCM1 203-753 AT&T EAST WTRBCT00DS1 203-829 SPRINT PCS WLFRCTXBCM1 203-496 SPRINT NEXTEL WHPLNYNBW09 203-524 AT&T MOBILITY BRPTCT04GT0 203-805 TCG AT&T MOBILITY BANDWIDTH.COM HRFRCTCRDS0 BRPTCT04CM3 HRFRCT0379Z 203-709 AT&T MOBILITY AT&T EAST BRPTCT04CM3 WTRBCT00DS1 WTRBCT00DS0 203-649 PAETEC COMMUNICATIONS LEVEL 3 SMFRCTATW51 NWHNCT02Y8X 203-993 VERIZON WIRELESS T-MOBILE LEVEL 3 WLFRCTAICM5 BLFDCTAP2MD NWHNCT02Y8X 203-791 AT&T EAST DNBRCT00DS1 203-526 SPRINT PCS WLFRCTXBCM1 203-898 SPRINT PCS VERIZON BUSINESS WLFRCTXBCM1 SMFRCTDSDS0 203-541 AT&T EAST PAETEC COMMUNICATIONS SMFRCT01DS2 SMFRCTATW51 203-837 VERIZON WIRELESS LEVEL 3 AT&T EAST AT&T MOBILITY WLFRCTAICM5 NWHNCT02Y8X DNBRCT00DS1 BRPTCT04GT0 203-371 AT&T EAST BRPTCT03DS0 203-712 LEVEL 3 ONE COMMUNICATIONS GLOBAL CROSSING LOCAL SERVICES INC VERIZON ACCESS TRANSMISSION SERVICES SMFRCTPU4MD NWHNCT030MD SMFRCTQIDS0 HRFRCTASDS0 203-940 VERIZON WIRELESS AT&T EAST WLFRCTAICM5 SMFRCT01DS2 203-249 VERIZON WIRELESS WLFRCTAICM5 203-612 AT&T MOBILITY CABLEVISION LIGHTPATH GLOBAL CROSSING LOCAL SERVICES INC LEVEL 3 MDTWCTNICM0 NRWLCTCVGT1 SMFRCTQIDS0 SMFRCTPUDS0 203-627 SPRINT NEXTEL NWHNCT02Y7X 203-650 SPRINT NEXTEL BRPTCT230MD 203-803 VERIZON WIRELESS LEVEL 3 WLFRCTAICM5 SMFRCTPUDS0 203-599 LEVEL 3 ONE COMMUNICATIONS AT&T MOBILITY CONVERSENT COMMUNICATIONS AT&T INTERNET SERVICES AT&T LOCAL SMFRCTPUDS0 HRFRCT0370Z BRPTCT04CM3 NWHNCTGODS0 NWHNCT024MD CHSHCT02DS0 203-878 AT&T EAST MLFRCT00DS0 203-610 VERIZON WIRELESS CONVERSENT COMMUNICATIONS WLFRCTAICM5 NWHNCTGODS0 203-699 AT&T EAST CHSHCT01DS0 203-770 AT&T MOBILITY BRPTCT04GT0 203-508 T-MOBILE ONE COMMUNICATIONS PAETEC COMMUNICATIONS BLFDCTAP2MD NWHNCT030MD SMFRCTATW51 203-504 SPRINT NEXTEL ONE COMMUNICATIONS CONVERSENT COMMUNICATIONS LEVEL 3 CABLEVISION LIGHTPATH SMFRCT21AMD SMFRCT0162Z NWHNCTGODS0 NWHNCT02Y8X NRWLCTCVDS0 203-948 SPRINT NEXTEL SMFRCT21AMD 203-481 AT&T EAST BRFRCT00DS0 203-739 AT&T EAST AT&T MOBILITY SPRINT PCS DNBRCT00DS1 BRPTCT04GT0 WLFRCTXBCM1 203-392 AT&T EAST T-MOBILE WSTVCT00DS0 BLFDCTAP2MD 203-774 ONE COMMUNICATIONS LEVEL 3 HRFRCT0370Z SMFRCTPUDS0 203-324 AT&T EAST SMFRCT01DS2 203-532 VERIZON NEW YORK CABLEVISION LIGHTPATH CONVERSENT COMMUNICATIONS PTCHNYPCDS0 HCVLNYAHDS2 MEVLNYOCDS0 203-603 AT&T EAST NWHNCT03DS0 203-293 VERIZON BUSINESS AT&T MOBILITY BANDWIDTH.COM SMFRCTDSDS0 BRPTCT04GT0 HRFRCT0379Z 203-606 T-MOBILE BLFDCTAP2MD 203-565 SPRINT PCS WLFRCTXBCM1 203-274 AT&T MOBILITY CABLEVISION LIGHTPATH LEVEL 3 PAETEC COMMUNICATIONS BRPTCT04GT0 NRWLCTCVGT1 NRWLCT028MD SMFRCTPUDS0 SMFRCTATW51 203-792 AT&T EAST DNBRCT00DS1 203-851 AT&T EAST NRWLCT02DS2 203-530 VERIZON WIRELESS WLFRCTAICM3 203-915 VERIZON WIRELESS WLFRCTAICM3 203-872 AT&T LOCAL AT&T INTERNET SERVICES CHSHCT02DS0 NWHNCT024MD 203-622 VERIZON NEW YORK GNWCCTGNDS0 203-776 AT&T EAST NWHNCT03DS3 203-483 AT&T EAST BRFRCT00DS0 203-984 VERIZON WIRELESS WLFRCTAICM5 203-656 AT&T EAST DARNCT00RS1 203-902 GLOBAL NAPS NWHNCT02Y4X 203-757 AT&T EAST WTRBCT00DS0 203-583 AT&T MOBILITY LEVEL 3 T-MOBILE MDTWCTNICM0 SMFRCTPUDS0 BLFDCTAP2MD 203-943 SPRINT NEXTEL SMFRCT21PMD 203-221 AT&T EAST WSPTCT00DS0 203-423 LEVEL 3 CABLEVISION LIGHTPATH VERIZON BUSINESS TCG SPRINT PCS SMFRCTPUDS0 NRWLCTCVDS0 SMFRCTDSDS0 HRFRCTCRDS0 WLFRCTXBCM1 203-821 AT&T EAST T-MOBILE NWHNCT03DS0 BLFDCTAP2MD 203-566 VERIZON BUSINESS SMFRCTDSDS0 203-465 AT&T EAST SPRINT NEXTEL T-MOBILE WTRBCT00DS0 NWHNCT02Y7X BLFDCTAP2MD 203-987 YMAX COMMUNICATIONS INFOHIGHWAY LEVEL 3 NYCMNY83D1S NYCPNYYKDS2 NYCMNY83DS8 203-674 AT&T EAST SMFRCT01DS2 203-363 AT&T EAST SPRINT NEXTEL SMFRCT01DS2 SMFRCT21AMD 203-450 VERIZON WIRELESS AT&T MOBILITY BANDWIDTH.COM WLFRCTAICM5 BRPTCT04GT0 HRFRCT0379Z 203-358 AT&T EAST SPRINT NEXTEL SMFRCT01DS2 SMFRCT21AMD 203-376 VERIZON WIRELESS WLFRCTAICM3 203-261 AT&T EAST TMBLCT00DS0 203-853 AT&T EAST NRWLCT02DS2 203-594 CABLEVISION LIGHTPATH AT&T INTERNET SERVICES NRWLCTCVDS0 NWHNCT024MD 203-723 AT&T EAST NGTCCT00DS0 203-727 AT&T MOBILITY SPRINT PCS VERIZON WIRELESS BRPTCT04GT0 WLFRCTXBCM1 WLFRCTAICM5 203-685 T-MOBILE BLFDCTAP2MD 203-956 CABLEVISION LIGHTPATH NRWLCTCVGT1 NRWLCTCVDS0 203-338 AT&T EAST SPRINT NEXTEL BRPTCT01DS0 BRPTCT230MD 203-557 CABLEVISION LIGHTPATH NRWLCTCVDS0 203-613 SPRINT PCS WLFRCTXBCM1 203-250 AT&T EAST CHSHCT01DS0 203-510 SPRINT PCS WLFRCTXBCM1 203-235 AT&T EAST MRDNCT00DS1 203-206 AT&T MOBILITY BRPTCT04CM3 203-431 AT&T EAST RDFDCT00RS1 203-410 SPRINT NEXTEL NWHNCT02Y7X 203-874 AT&T EAST MLFRCT00DS0 203-484 AT&T EAST NBFRCT00RS0 203-759 AT&T EAST BANDWIDTH.COM WTRBCT00DS0 HRFRCT0379Z 203-286 CONVERSENT COMMUNICATIONS LEVEL 3 CABLEVISION LIGHTPATH T-MOBILE NWHNCTGODS0 SMFRCTPUDS0 NRWLCTCVDS0 BLFDCTAP2MD 203-347 LEVEL 3 ONE COMMUNICATIONS VERIZON BUSINESS YMAX COMMUNICATIONS LEVEL 3 NYCMNY83DS8 WHPLNYWPX8X NYCMNY83DSZ NYCMNY83DS0 NYCMNY83D1S NYCMNYQODS1 203-963 AT&T EAST NRWLCT02DS2 203-335 AT&T EAST BRPTCT01DS0 203-389 AT&T EAST WSTVCT00DS0 203-271 AT&T EAST CHSHCT01DS0 203-817 AT&T EAST CABLEVISION LIGHTPATH NWLNCT02DS7 NRWLCTCVDS0 203-576 AT&T EAST BRPTCT01DS0 203-426 AT&T EAST NWTWCT00DS0 203-549 ONE COMMUNICATIONS SPRINT NEXTEL CABLEVISION LIGHTPATH HRFRCT0370Z BRPTCT230MD NRWLCTCVGT1 203-254 AT&T EAST FRFDCT00DS0 203-298 CABLEVISION LIGHTPATH T-MOBILE AT&T MOBILITY NRWLCTCVDS0 BLFDCTAPCM0 BRPTCT04CM3 203-458 AT&T EAST GUFDCT00DS0 203-292 BANDWIDTH.COM CABLEVISION LIGHTPATH AT&T INTERNET SERVICES HRFRCT0379Z NRWLCTCVDS0 NWHNCT024MD NRWLCT028MD 203-562 AT&T EAST NWHNCT03DS3 203-438 AT&T EAST RDFDCT00RS1 203-270 AT&T EAST NWTWCT00DS0 203-687 SPRINT NEXTEL LEVEL 3 VERIZON WIRELESS NWHNCT02Y7X SMFRCTPUDS0 WLFRCTAICM3 203-924 AT&T EAST DRBYCT00DS0 203-223 SPRINT NEXTEL SMFRCT21PMD 203-257 VERIZON WIRELESS WLFRCTAICM5 203-231 VERIZON WIRELESS WLFRCTAICM3 203-403 TCG LEVEL 3 COMCAST DIGITAL PHONE PAETEC COMMUNICATIONS AT&T INTERNET SERVICES GLOBAL CROSSING LOCAL SERVICES INC HRFRCTCRDS0 SMFRCTPU4MD BRSTCTAHPS0 SMFRCTATW51 NWHNCT024MD SMFRCTQIDS0 203-570 T-MOBILE BLFDCTAP2MD 203-381 AT&T EAST SRFRCT00DS0 203-735 AT&T EAST DRBYCT00DS0 203-243 T-MOBILE BLFDCTAP2MD 203-374 AT&T EAST BRPTCT03DS0 203-977 AT&T EAST SMFRCT01DS2 203-275 LEVEL 3 AT&T EAST VERIZON WIRELESS T-MOBILE BANDWIDTH.COM SMFRCTPUDS0 BRPTCT01DS0 WLFRCTAICM5 NRTNMAAACM6 HRFRCT0379Z BRPTCT03DS0 203-604 LEVEL 3 CONVERSENT COMMUNICATIONS NWHNCT02Y8X NWHNCTGODS0 NRWLCT025MD 203-492 AT&T EAST AT&T MOBILITY NWHNCT03DS0 BRPTCT04CM3 203-312 AT&T EAST ONE COMMUNICATIONS VERIZON WIRELESS SPRINT NEXTEL NWFLCT00RS1 SMFRCT0162Z WLFRCTAICM5 SMFRCT21AMD 203-437 SPRINT NEXTEL AT&T MOBILITY VERIZON BUSINESS LEVEL 3 COMCAST DIGITAL PHONE NWHNCT02Y7X BRPTCT04CM3 HRFRCTDWDS0 SMFRCTPUDS0 BRSTCTAHPS0 203-551 T-MOBILE AT&T MOBILITY TCG LEVEL 3 BLFDCTAP2MD BRPTCT04GT0 HRFRCTCRDS0 NWHNCT02Y8X 203-695 AT&T EAST VERIZON WIRELESS MDLBCT00RS0 WLFRCTAICM3 203-866 AT&T EAST NRWLCT02DS2 203-309 LEVEL 3 SPRINT PCS SMFRCTPUDS0 WLFRCTXBCM1 203-647 PAETEC COMMUNICATIONS SMFRCTATW51 203-651 ONE COMMUNICATIONS LEVEL 3 VERIZON ACCESS TRANSMISSION SERVICES SPRINT PCS HRFRCT0370Z SMFRCTPUDS0 HRFRCTASDS0 WLFRCTXBCM1 203-720 AT&T EAST NGTCCT00DS0 203-209 VERIZON WIRELESS WLFRCTAICM5 203-469 AT&T EAST EHVNCT00DS0 203-547 GLOBAL NAPS NWHNCT02DSY 203-883 LEVEL 3 CABLEVISION LIGHTPATH SMFRCTPUDS0 NRWLCT028MD 203-553 AT&T EAST COMCAST DIGITAL PHONE NWHNCT03DS0 BRSTCTAHPS0 203-689 ONE COMMUNICATIONS AT&T EAST COMCAST DIGITAL PHONE AT&T LOCAL NWHNCT030MD GUFDCT00DS0 BRSTCTAHPS0 CHSHCT02DS0 203-520 VERIZON WIRELESS WLFRCTAICM5 203-454 AT&T EAST WSPTCT00DS0 203-955 VERIZON BUSINESS SMFRCTDSDS0 203-914 POCKET COMMUNICATIONS HRFRCT0378Z 203-967 AT&T EAST SMFRCT01DS1 203-893 VERIZON WIRELESS AT&T MOBILITY T-MOBILE VERIZON ACCESS TRANSMISSION SERVICES WLFRCTAICM3 BRPTCT04CM3 BLFDCTAP2MD HRFRCTASDS0 BRPTCT04GT0 203-936 AT&T EAST AT&T MOBILITY BANDWIDTH.COM NWHNCT03DS0 BRPTCT04CM3 HRFRCT0379Z 203-937 AT&T EAST WSHNCT00DS0 203-308 VERIZON WIRELESS T-MOBILE AT&T MOBILITY PAETEC COMMUNICATIONS WLFRCTAICM3 BLFDCTAP2MD BRPTCT04CM3 SMFRCTATW51 203-748 AT&T EAST DNBRCT00DS1 203-383 VERIZON WIRELESS AT&T EAST AT&T INTERNET SERVICES SPRINT PCS WLFRCTAICM5 SRFRCT00DS0 NWHNCT024MD WLFRCTXBCM1 203-207 AT&T EAST AT&T MOBILITY DNBRCT00DS1 BRPTCT04GT0 203-786 AT&T EAST NWHNCT03DS3 203-272 AT&T EAST CHSHCT01DS0 203-451 AT&T MOBILITY BRPTCT04GT0 203-974 TCG VERIZON WIRELESS HRFRCTCRDS0 WLFRCTAICM3 203-986 VERIZON BUSINESS SMFRCTDSDS0 203-552 VERIZON NEW YORK LEVEL 3 GNWCCTGNDS0 NYCMNY83DSZ 203-517 LEVEL 3 PAETEC COMMUNICATIONS ONE COMMUNICATIONS AT&T MOBILITY CABLEVISION LIGHTPATH SMFRCTPUDS0 SMFRCTATW51 SMFRCT0162Z BRPTCT04GT0 NRWLCTCVDS0 203-761 AT&T EAST WLTOCT00DS0 203-321 AT&T EAST VERIZON WIRELESS SMFRCT02DS0 WLFRCTAICM5 203-468 AT&T EAST EHVNCT00DS0 203-655 AT&T EAST DARNCT00RS1 203-607 VERIZON BUSINESS SMFRCTDSDS0 203-942 SPRINT PCS COMCAST DIGITAL PHONE VERIZON WIRELESS WLFRCTXBCM1 BRSTCTAHPS0 WLFRCTAICM5 203-439 COX COMMUNICATIONS SPRINT PCS MNCHCTAVDS0 WLFRCTXBCM1 203-340 CABLEVISION LIGHTPATH YMAX COMMUNICATIONS HCVLNYAHDS2 NYCMNY83D1S 203-349 TCG LEVEL 3 HRFRCTCRDS0 SMFRCTPUDS0 203-845 AT&T EAST NRWLCT03DS0 203-441 BANDWIDTH.COM SPRINT NEXTEL COMCAST DIGITAL PHONE LEVEL 3 TCG HRFRCT0379Z NWHNCT02Y7X BRSTCTAHPS0 NWHNCT02Y8X HRFRCTCRDS0 203-337 AT&T EAST BRPTCT01DS0 203-661 VERIZON NEW YORK GNWCCTGNDS0 203-245 AT&T EAST MDSNCT01RS0 203-304 TCG CHARTER TELEPHONE PAETEC COMMUNICATIONS ONE COMMUNICATIONS LEVEL 3 AT&T INTERNET SERVICES HRFRCTCRDS0 WLMNCT131MD SMFRCTATW51 SMFRCT0162Z SMFRCTPUDS0 NWHNCT024MD 203-745 LEVEL 3 AT&T INTERNET SERVICES COMCAST DIGITAL PHONE VERIZON WIRELESS AT&T MOBILITY SMFRCTPUDS0 HRFRCT0376Z BRSTCTAHPS0 WLFRCTAICM3 BRPTCT04CM3 203-861 VERIZON NEW YORK GNWCCTGNDS0 203-587 CABLEVISION LIGHTPATH NRWLCT028MD 203-852 AT&T EAST NRWLCT02DS2 203-769 VERIZON NEW YORK CABLEVISION LIGHTPATH YMAX COMMUNICATIONS GNWCCTGNDS0 WHPLNYWPXSX NYCMNY83D1S 203-634 AT&T EAST MRDNCT00DS1 203-344 CABLEVISION LIGHTPATH AT&T INTERNET SERVICES GLOBAL CROSSING LOCAL SERVICES INC NRWLCTCVDS0 NWHNCT024MD SMFRCTQIDS0 203-788 AT&T MOBILITY BRPTCT04GT0 203-746 AT&T EAST NWFLCT00RS1 203-972 AT&T EAST NWCNCT00DS0 203-470 VERIZON WIRELESS WLFRCTAICM5 203-435 T-MOBILE BLFDCTAP2MD 203-240 VERIZON WIRELESS WLFRCTAICM5 203-260 AT&T MOBILITY BRPTCT04GT0 203-660 YMAX COMMUNICATIONS GLOBAL CROSSING LOCAL SERVICES INC VERIZON BUSINESS NYCMNY83D1S NYCMNYZR00E WHPLNYYFDS0 203-409 PAETEC COMMUNICATIONS TCG CONVERSENT COMMUNICATIONS VERIZON BUSINESS GLOBAL CROSSING LOCAL SERVICES INC SMFRCTATW51 HRFRCTCRDS0 NWHNCTGODS0 SMFRCTDSDS0 SMFRCTQIDS0 203-386 AT&T EAST SRFRCT00DS0 203-823 VERIZON WIRELESS SPRINT NEXTEL ONE COMMUNICATIONS AT&T MOBILITY COMCAST DIGITAL PHONE WLFRCTAICM3 NWHNCT02Y7X HRFRCT0370Z BRPTCT04CM3 SMFRCTCTDS0 203-716 VERIZON BUSINESS BANDWIDTH.COM GLOBAL CROSSING LOCAL SERVICES INC LEVEL 3 SMFRCTDSDS0 HRFRCT0379Z SMFRCTQIDS0 NWHNCT02Y8X 203-921 AT&T EAST VERIZON WIRELESS SMFRCT01DS2 WLFRCTAICM5 203-935 CONVERSENT COMMUNICATIONS GLOBAL CROSSING LOCAL SERVICES INC SPRINT PCS GLOBAL NAPS NWHNCTGODS0 SMFRCTQIDS0 WLFRCTXBCM0 NWHNCT02Y4X 203-323 AT&T EAST SMFRCT01DS1 203-521 VERIZON WIRELESS WLFRCTAICM5 203-794 AT&T EAST DNBRCT00DS1 203-384 AT&T EAST BRPTCT01DS0 203-315 AT&T EAST BRFRCT00DS0 203-849 AT&T EAST NRWLCT03DS0 203-749 AT&T EAST DNBRCT00DS1 203-635 LEVEL 3 ONE COMMUNICATIONS SMFRCTPUDS0 SMFRCT0162Z 203-985 AT&T EAST VERIZON WIRELESS NHVNCT00RS0 WLFRCTAICM3 203-393 AT&T EAST AT&T MOBILITY BTHNCT00RS0 BRPTCT04CM3 203-200 BANDWIDTH.COM AT&T EAST LEVEL 3 HRFRCT0379Z NWHNCT03DS0 SMFRCTPUDS0 203-480 VERIZON BUSINESS SMFRCTDSDS0 203-307 LEVEL 3 CONVERSENT COMMUNICATIONS ONE COMMUNICATIONS VERIZON BUSINESS SMFRCTPUDS0 NWHNCTGODS0 SMFRCT0162Z SMFRCTDSDS0 203-793 CONVERSENT COMMUNICATIONS GLOBAL CROSSING LOCAL SERVICES INC COMCAST DIGITAL PHONE NWHNCTGODS0 SMFRCTQIDS0 BRSTCTAHPS0 203-217 AT&T MOBILITY BRPTCT04CM3 203-901 VERIZON WIRELESS LEVEL 3 T-MOBILE SPRINT PCS WLFRCTAICM3 SMFRCTPUDS0 BLFDCTAP2MD WLFRCTXBCM0 203-880 TCG AT&T INTERNET SERVICES ONE COMMUNICATIONS LEVEL 3 CHARTER TELEPHONE HRFRCTCRDS0 NWHNCT024MD SMFRCT0162Z NWHNCT02Y8X WLMNCT131MD 203-568 PAETEC COMMUNICATIONS SPRINT NEXTEL T-MOBILE SMFRCTATW51 NWHNCT02Y7X BLFDCTAPCM0 203-380 AT&T EAST SRFRCT00DS0 203-397 AT&T EAST WSTVCT00DS0 203-896 ONE COMMUNICATIONS GLOBAL CROSSING LOCAL SERVICES INC NWHNCT030MD SMFRCTQIDS0 203-407 AT&T EAST T-MOBILE HMDNCT00DS0 BLFDCTAP2MD 203-545 SPRINT PCS WLFRCTXBCM1 203-730 AT&T EAST DNBRCT00DS1 203-988 AT&T MOBILITY BRPTCT04CM3 203-422 VERIZON NEW YORK CABLEVISION LIGHTPATH GNWCCTGNDS0 HCVLNYAHDS2 203-846 AT&T EAST NRWLCT03DS0 203-865 AT&T EAST NWHNCT03DS3 203-621 PAETEC COMMUNICATIONS SPRINT PCS SMFRCTATW51 WLFRCTXBCM1 203-567 PAETEC COMMUNICATIONS LEVEL 3 SMFRCTATW51 SMFRCTPUDS0 203-394 AT&T EAST AT&T MOBILITY BRPTCT01DS0 BRPTCT04CM3 203-706 AT&T MOBILITY ONE COMMUNICATIONS T-MOBILE SPRINT NEXTEL BRPTCT04CM3 WTRBCT001MD BLFDCTAP2MD NWHNCT02Y7X 203-819 AT&T EAST AT&T MOBILITY SPRINT NEXTEL NWLNCT02DS7 BRPTCT04CM3 NWHNCT02Y7X 203-365 AT&T EAST BRPTCT03DS0 203-733 VERIZON WIRELESS WLFRCTAICM5 203-755 AT&T EAST WTRBCT00DS1 203-808 T-MOBILE SPRINT NEXTEL BLFDCTAP2MD NWHNCT02Y7X 203-923 VERIZON BUSINESS CABLEVISION LIGHTPATH AT&T MOBILITY SPRINT PCS SMFRCTDSDS0 NRWLCTCVGT1 MDTWCTNICM0 WLFRCTXBCM1 203-266 AT&T EAST SOBYCT00DS0 203-895 AT&T MOBILITY BRPTCT04GT0 203-688 AT&T EAST NWHNCT03DS0 203-771 AT&T EAST NWHNCT03DS0 203-263 AT&T EAST SOBYCT00DS0 203-768 T-MOBILE BLFDCTAP2MD 203-718 ONE COMMUNICATIONS GLOBAL CROSSING LOCAL SERVICES INC WTRBCT001MD SMFRCTQIDS0 203-927 VERIZON WIRELESS SPRINT NEXTEL WLFRCTAICM3 NWHNCT02Y7X 203-738 ONE COMMUNICATIONS SPRINT PCS HRFRCT0370Z WLFRCTXBCM1 203-424 BANDWIDTH.COM AT&T INTERNET SERVICES SPRINT PCS HRFRCT0379Z NWHNCT024MD WLFRCTXBCM1 203-778 AT&T EAST DNBRCT00DS1 203-310 VERIZON BUSINESS SMFRCTDSDS0 203-810 CABLEVISION LIGHTPATH NRWLCTCVDS0 203-998 LEVEL 3 T-MOBILE SMFRCTPUDS0 BLFDCTAP2MD 203-740 AT&T EAST BRFDCT00DS0 203-459 AT&T EAST TMBLCT00DS0 203-731 AT&T MOBILITY VERIZON WIRELESS AT&T EAST BRPTCT04GT0 WLFRCTAICM5 DNBRCT00DS1 203-858 VERIZON WIRELESS WLFRCTAICM5 203-633 LEVEL 3 SPRINT NEXTEL CONVERSENT COMMUNICATIONS LEVEL 3 SMFRCTPUDS0 NWHNCT02Y7X NWHNCTGODS0 NWHNCT02Y8X 203-327 AT&T EAST SMFRCT01DS1 203-225 AT&T EAST HNTNCT00DS0 203-797 AT&T EAST DNBRCT00DS1 203-888 AT&T EAST SYMRCT00RS0 203-460 SPRINT NEXTEL SPRINT PCS AT&T LOCAL LEVEL 3 SMFRCT21AMD WLFRCTXBCM1 CHSHCT02DS0 NRWLCT025MD 203-574 AT&T EAST WTRBCT00DS1 203-357 AT&T EAST SMFRCT01DS2 203-848 AT&T MOBILITY CONVERSENT COMMUNICATIONS VERIZON WIRELESS BRPTCT04CM3 NWHNCTGODS0 WLFRCTAICM3 203-215 AT&T MOBILITY BRPTCT04CM3 203-202 CABLEVISION LIGHTPATH LEVEL 3 SPRINT PCS VERIZON BUSINESS NRWLCTCVDS0 SMFRCTPUDS0 WLFRCTXBCM1 SMFRCTDSDS0 203-919 T-MOBILE BLFDCTAP2MD 203-527 SPRINT NEXTEL VERIZON WIRELESS COMCAST DIGITAL PHONE AT&T INTERNET SERVICES AT&T EAST NWHNCT02Y7X WLFRCTAICM3 BRSTCTAHPS0 NWHNCT024MD PRSPCT00RS0 203-563 AT&T EAST AT&T INTERNET SERVICES WLTOCT00DS0 NWHNCT024MD 203-715 T-MOBILE BLFDCTAP2MD 203-326 AT&T MOBILITY AT&T EAST BRPTCT04CM3 SMFRCT01DS2 203-302 CABLEVISION LIGHTPATH CONVERSENT COMMUNICATIONS TELEPORT COMMUNICATIONS GROUP SPRINT NEXTEL GNWCCTGNDSN MEVLNYOCDS0 WHPLNY02DS5 WHPLNYNBCM3 203-330 AT&T EAST BRPTCT01DS0 203-367 AT&T EAST BRPTCT01DS0 203-406 AT&T EAST NEUTRAL TANDEM SMFRCT01DS1 HRFRCTBCDS1 203-654 AT&T MOBILITY ONE COMMUNICATIONS AT&T EAST SPRINT 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NRWLCT028MD WLFRCTAICM5 203-575 AT&T EAST WTRBCT00DS1 203-533 LEVEL 3 COMCAST DIGITAL PHONE BANDWIDTH.COM SMFRCTPUDS0 BRSTCTAHPS0 HRFRCT0379Z 203-662 AT&T EAST DARNCT00RS1 203-427 AT&T MOBILITY VERIZON ACCESS TRANSMISSION SERVICES T-MOBILE LEVEL 3 MDTWCTNICM0 HRFRCTASDS0 BLFDCTAP2MD SMFRCTPUDS0 203-554 AT&T MOBILITY BRPTCT04GT0 203-857 AT&T EAST NRWLCT02DS2 203-681 YMAX COMMUNICATIONS VERIZON NEW YORK NYCMNY83D1S GNWCCTGNDS0 203-598 AT&T EAST VERIZON WIRELESS MDLBCT00RS0 WLFRCTAICM3 203-482 AT&T MOBILITY BRPTCT04GT0 203-682 PAETEC COMMUNICATIONS AT&T INTERNET SERVICES SMFRCTATW51 NWHNCT024MD 203-559 SPRINT PCS TCG WLFRCTXBCM1 HRFRCTCRDS0 203-909 VERIZON WIRELESS AT&T MOBILITY LEVEL 3 T-MOBILE WLFRCTAICM3 BRPTCT04CM3 SMFRCTPU4MD BLFDCTAP2MD 203-359 AT&T EAST SMFRCT01DS1 203-938 AT&T EAST RDNGCT00RS0

Block Name Assigned To Switches 203-763 VERIZON BUSINESS LEVEL 3 SPRINT PCS SMFRCTDSDS0 SMFRCTPUDS0 WLFRCTXBCM1 203-353 AT&T EAST SMFRCT01DS1 203-809 T-MOBILE BLFDCTAP2MD 203-373 AT&T EAST BRPTCT03DS0 203-366 AT&T EAST BRPTCT01DS0 203-614 PAETEC COMMUNICATIONS AT&T EAST SMFRCTATW51 SMFRCT02DS0 203-251 AT&T EAST SMFRCT01DS2 203-379 AT&T EAST LEVEL 3 ONE COMMUNICATIONS AT&T MOBILITY MRDNCT00DS1 NWHNCT02Y8X WTRBCT001MD BRPTCT04GT0 MDTWCTNICM0 203-457 AT&T EAST AT&T INTERNET SERVICES MDSNCT02RS0 NWHNCT024MD 203-979 AT&T MOBILITY BRPTCT04GT0 203-859 VERIZON WIRELESS VERIZON BUSINESS COMCAST DIGITAL PHONE CONVERSENT COMMUNICATIONS WLFRCTAICM3 HRFRCTDWDS0 BRSTCTAHPS0 NWHNCTGODS0 203-320 VERIZON BUSINESS SMFRCTDSDS0 203-758 AT&T EAST PRSPCT00RS0 MDLBCT00RS0 203-589 VERIZON WIRELESS SPRINT PCS WLFRCTAICM3 WLFRCTXBCM1 203-665 PAETEC COMMUNICATIONS ONE COMMUNICATIONS BANDWIDTH.COM SMFRCTATW51 SMFRCT0162Z HRFRCT0379Z 203-899 AT&T EAST NRWLCT02DS2 203-881 AT&T EAST SYMRCT00RS0 203-497 AT&T EAST 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