410 (Maryland)

719 Blocks Found in Area 410 - List All

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Block Name Assigned To Switches 410-955 VERIZON MARYLAND BLTMMDWLDS0 410-238 VERIZON MARYLAND ESSXMDEXDS0 410-546 VERIZON MARYLAND SLBRMDSBDS1 410-296 VERIZON MARYLAND TWSNMDTWDS0 410-800 NATIONSLINE SPRINT NEXTEL COMCAST DIGITAL PHONE T-MOBILE PAETEC COMMUNICATIONS VERIZON WIRELESS BLTMMDCH13Z HNVAMDBIW01 WHMRMDATPS0 BLTMMDCH40Z BLTMMDCHW29 CTVLMDBACM3 410-866 VERIZON MARYLAND BLTMMDFRDS0 410-938 VERIZON MARYLAND TWSNMDTWDS0 410-936 VERIZON MARYLAND BLTMMDMD6WD 410-913 VERIZON WIRELESS WDLWMDEMCM2 410-369 TW TELECOM T-MOBILE LARLMDCC1MD BLTMMDCH40Z 410-398 VERIZON MARYLAND EKTNMDEKDS0 410-857 VERIZON MARYLAND WMNSMDWMDS0 410-573 VERIZON MARYLAND PARLMDPADS0 410-645 BANDWIDTH.COM VERIZON BUSINESS GLOBAL TELECOM BROKERS CORETEL - MD TW TELECOM NATIONSLINE COMCAST DIGITAL PHONE BLTMMDCH45Z BLTOMDKHDS0 BLTMMDCH08Z BLTMMD91DS1 LARLMDCC1MD BLTMMDCH13Z WHMRMDATPS0 410-349 VERIZON MARYLAND GLOBAL TELECOM BROKERS AT&T MOBILITY VERIZON WIRELESS STMRMDSMRS1 BLTMMDCH08Z CLMAMDORGT0 WDLWMDEMCM2 410-418 VERIZON MARYLAND ELCYMDELDS0 410-248 VERIZON MARYLAND GLOBAL TELECOM BROKERS LEVEL 3 NATIONSLINE PRHLMDPHDS0 BLTMMDCH08Z BLTMMDCHXZY BLTMMDCH13Z 410-799 VERIZON MARYLAND EKRGMDELDS0 410-733 AT&T MOBILITY CLMAMDORGT0 410-824 CAVALIER TELEPHONE YMAX COMMUNICATIONS AT&T LOCAL TW TELECOM HRNDVA13DS0 WASLDCRGDS0 WASHDCDTDS2 LARLMDCCDC0 410-290 VERIZON MARYLAND CLMAMDSRRS0 CLMAMDOBDS0 410-429 BANDWIDTH.COM VERIZON MARYLAND COMCAST DIGITAL PHONE BLTMMDCH45Z RSTWMDRSDS0 WHMRMDATPS0 410-983 VERIZON MARYLAND AT&T MOBILITY CRDFMDCDRS0 CLMAMDORGT0 410-943 VERIZON MARYLAND NATIONSLINE COMCAST DIGITAL PHONE CORETEL - MD HRLCMDHLRS0 SLBRMDSBX7X SLBRMDSBXHX SLBRMDFSDS0 410-599 AT&T MOBILITY CLMAMDORGT0 410-565 TW TELECOM TCG COMCAST DIGITAL PHONE LARLMDCC1MD BLTMMDFMDS0 WHMRMDATPS1 410-526 VERIZON MARYLAND RSTWMDRSDS0 410-323 VERIZON MARYLAND BLTMMDYKDS0 410-845 SPRINT PCS NATIONSLINE AT&T MOBILITY VERIZON MARYLAND SLBRMDSBRMD SLBRMDSBX7X SLBRMDSCXLX SLBRMDSBDS1 410-694 VERIZON MARYLAND FPATMDFRDS0 410-777 VERIZON ACCESS TRANSMISSION SERVICES LEVEL 3 BLTMMDDNDS0 BLTMMDSNDS1 410-821 VERIZON MARYLAND TWSNMDTWDS0 410-884 VERIZON MARYLAND CLMAMDCBDS0 410-856 VERIZON MARYLAND BROADVIEW NETWORKS CYVLMDDADS0 SLSPMDBCDS0 410-273 VERIZON MARYLAND ABRDMDABDS0 410-576 VERIZON MARYLAND BLTMMDCHDS3 410-804 VERIZON WIRELESS CTVLMDBACM3 410-713 AT&T MOBILITY VERIZON WIRELESS VERIZON MARYLAND LEVEL 3 SPRINT NEXTEL SLBRMDSCXLX SLBRMDAZCM2 SLBRMDSBDS1 SLBRMDSBUMD SLBRMDEPCM1 410-765 VERIZON MARYLAND FPATMDFRDS0 410-755 CORETEL - MD NATIONSLINE AT&T LOCAL VERIZON MARYLAND SLBRMDFSDS0 SLBRMDSBX7X WYMLMDMWLMD CCTNMDCLRS0 410-386 VERIZON MARYLAND WMNSMDWMDS0 410-333 VERIZON MARYLAND BLTMMDCHDS2 BLTMMDMDRS0 410-638 VERIZON MARYLAND BLARMDBLDS0 410-725 SPRINT PCS SLBRMDSBRMD 410-647 VERIZON MARYLAND SVPKMDSPDS0 410-774 LEVEL 3 GLOBAL TELECOM BROKERS NATIONSLINE VERIZON MARYLAND ATX TELECOMMUNICATIONS SERVICES VERIZON ACCESS TRANSMISSION SERVICES BLTMMDSNDS1 BLTMMDCH08Z BLTMMDCH13Z COTNMDCRDS0 BLTMMDCHAMD BLTMMDDNDS0 410-855 VERIZON MARYLAND FPATMDFRDS0 410-207 VERIZON WIRELESS WDLWMDEMCM2 410-557 VERIZON MARYLAND ONE COMMUNICATIONS BALTIMORE-WASHINGTON TELEPHONE COMPANY JRVLMDJERS0 BLTMMDCH14Z LARLMDEH00T 410-830 VERIZON WIRELESS VERIZON MARYLAND CTVLMDBACM3 TWSNMDTWDS0 410-729 VERIZON MARYLAND DRCRMDDCDS0 410-675 VERIZON MARYLAND BLTMMDWLDS0 410-814 COMCAST LONG DISTANCE T-MOBILE CAVALIER TELEPHONE BLTPMDHIDS0 BLTMMDCH40Z HNVAMDBHRS0 410-559 TCG BLTMMDFMDS0 410-922 VERIZON MARYLAND RNTWMDRADS0 410-572 VERIZON MARYLAND SLBRMDSBDS1 410-860 VERIZON MARYLAND SLBRMDSBDS1 410-409 VERIZON WIRELESS CTVLMDBACM3 410-732 VERIZON MARYLAND BLTMMDWLDS0 410-967 AT&T MOBILITY CLMAMDORGT0 410-287 VERIZON MARYLAND NRTEMDNERS0 410-642 VERIZON MARYLAND BNBRMDBRRS0 410-654 VERIZON MARYLAND OWMLMDOMDS0 410-676 VERIZON MARYLAND EDWDMDEGDS0 410-828 VERIZON MARYLAND TWSNMDTWDS0 410-629 VERIZON MARYLAND CORETEL - MD NATIONSLINE AT&T MOBILITY BRLNMDBLRS1 SLBRMDFSDS0 SLBRMDSBX7X SLBRMDSCXLX 410-897 VERIZON MARYLAND VERIZON WIRELESS PARLMDPADS0 WDLWMDEMCM2 410-641 VERIZON MARYLAND BRLNMDBLRS1 OCPNMDCRRS1 410-721 VERIZON MARYLAND COTNMDCRDS0 410-788 VERIZON MARYLAND CTVLMDCTDS0 410-542 VERIZON MARYLAND BLTMMDLBDS0 410-538 VERIZON MARYLAND EDWDMDEGDS0 410-975 VERIZON MARYLAND PAETEC COMMUNICATIONS COMCAST DIGITAL PHONE YMAX COMMUNICATIONS SVPKMDSPDS0 BLTMMDCHW29 WHMRMDATPS0 BLTMMDSNDS6 410-519 VERIZON MARYLAND ODTNMDONDS0 ODTNMDPORS2 410-761 VERIZON MARYLAND GLBRMDGLDS0 410-432 VERIZON MARYLAND SVPKMDSPDS0 410-793 VERIZON MARYLAND LEVEL 3 COMCAST DIGITAL PHONE ATX TELECOMMUNICATIONS SERVICES COTNMDCRDS0 BLTMMDSNDS1 WHMRMDATPS0 BLTMMDCHAMD 410-361 SPRINT NEXTEL VERIZON MARYLAND HNVAMDBIW01 BLTMMDCHDS2 410-209 AT&T MOBILITY VERIZON MARYLAND CLMAMDORGT0 BLTMMDCHDS2 410-633 VERIZON MARYLAND DNDLMDDNDS0 410-329 VERIZON MARYLAND CYVLMDDADS0 PKTNMDPKRS0 MANRMDMNRS0 410-636 VERIZON MARYLAND BRKLMDBKDS0 410-593 VERIZON MARYLAND FORKMDFKRS1 410-314 VERIZON ACCESS TRANSMISSION SERVICES ATX TELECOMMUNICATIONS SERVICES BLTMMDDNDS0 BLTMMDCHAMD 410-817 VERIZON MARYLAND FORKMDFKRS1 410-873 CORETEL - MD NATIONSLINE VERIZON MARYLAND SLBRMDFSDS0 SLBRMDSBX7X NNTCMDNTRS1 410-563 VERIZON MARYLAND BLTMMDWLDS0 410-940 QUANTUM TELECOMMUNICATIONS SPRINT NEXTEL ATX TELECOMMUNICATIONS SERVICES AT&T MOBILITY BLTMMD91DS2 HNVAMDBICM1 BLTMMDCHAMD ANNPMDAN8MD CLMAMDORGT0 410-888 VERIZON MARYLAND LARLMDLRDS0 410-215 VERIZON WIRELESS CTVLMDBACM3 410-795 VERIZON MARYLAND SYVLMDSKDS0 410-521 VERIZON MARYLAND RNTWMDRADS0 410-684 VERIZON MARYLAND FPATMDFRDS0 410-925 VERIZON WIRELESS WDLWMDEMCM2 410-778 VERIZON MARYLAND CHRTMDCHDS0 410-613 VERIZON MARYLAND BLTMMDCH1DD 410-969 VERIZON MARYLAND GLBRMDGLDS0 410-256 VERIZON MARYLAND PRHLMDPHDS0 410-464 VERIZON MARYLAND CAVALIER TELEPHONE BLTMMDYKDS0 HNVAMDBHRS0 410-846 LEVEL 3 COMCAST DIGITAL PHONE VERIZON ACCESS TRANSMISSION SERVICES BLTMMDSNDS1 WHMRMDATPS0 BLTMMDDNDS0 410-594 VERIZON MARYLAND WDLWMDWLDS0 410-510 TCG GLOBAL TELECOM BROKERS CORETEL - MD NATIONSLINE COMCAST DIGITAL PHONE BLTMMDFMDS0 BLTMMDCH08Z BLTMMD91DS1 BLTMMDCH13Z WHMRMDATPS0 410-234 VERIZON MARYLAND BLTMMDCHDS3 410-697 CORETEL - MD LEVEL 3 COMCAST DIGITAL PHONE LEVEL 3 XO COMMUNICATIONS INC ATX TELECOMMUNICATIONS SERVICES VERIZON ACCESS TRANSMISSION SERVICES BLTMMD91DS1 BLTMMDCHXZY WHMRMDATPS0 BLTMMDSNDS1 BLTMMDSN5MD BLTMMDCHAMD BLTMMDDNDS0 410-400 CAVALIER TELEPHONE HNVAMDBHRS0 410-495 VERIZON MARYLAND MUTLMDMTRS0 410-396 VERIZON MARYLAND BLTMMDCHDS2 410-417 VERIZON MARYLAND LEVEL 3 BANDWIDTH.COM EDWDMDEGDS0 BLTMMDSNDS1 BLTMMDCH45Z 410-299 VERIZON WIRELESS CTVLMDBACM3 410-875 VERIZON MARYLAND ATX TELECOMMUNICATIONS SERVICES WMNSMDWMDS0 BLTMMDCHAMD 410-624 VERIZON MARYLAND PAETEC COMMUNICATIONS AT&T MOBILITY BLTMMDEDCG0 BLTMMDCHW29 CLMAMDORGT0 410-744 VERIZON MARYLAND CTVLMDCTDS0 410-747 VERIZON MARYLAND CTVLMDCTDS0 410-707 VERIZON WIRELESS WDLWMDEMCM3 410-982 QUANTUM TELECOMMUNICATIONS SPRINT NEXTEL PAETEC COMMUNICATIONS AT&T MOBILITY BLTMMD91DS2 HNVAMDBIW01 BLTMMDCHW29 CLMAMDORGT0 410-376 VERIZON MARYLAND CORETEL - MD NATIONSLINE LEVEL 3 VINNMDVNRS0 SLBRMDFSDS0 SLBRMDSBX7X SLBRMDSBUMD 410-585 VERIZON MARYLAND AT&T MOBILITY CAVALIER TELEPHONE PIVLMDPKDS1 CLMAMDORGT0 HNVAMDBHRS0 410-643 VERIZON MARYLAND RMCKMDRRRS0 STVLMDSTRS1 410-288 VERIZON MARYLAND DNDLMDDNDS0 410-544 VERIZON MARYLAND SVPKMDSPDS0 410-272 VERIZON MARYLAND ABRDMDABDS0 410-241 VERIZON WIRELESS WDLWMDEMCM2 410-472 VERIZON MARYLAND MANRMDMNRS0 410-454 VERIZON ACCESS TRANSMISSION SERVICES BLTMMDDNDS0 410-891 VERIZON BUSINESS LEVEL 3 COMCAST DIGITAL PHONE BLTOMDKHDS0 BLTMMDCHXZY WHMRMDATPS0 410-522 VERIZON MARYLAND T-MOBILE BLTMMDWLDS0 BLTMMDCH40Z 410-780 VERIZON MARYLAND ESSXMDEXDS0 410-324 VERIZON MARYLAND TWSNMDTWDS0 410-203 VERIZON MARYLAND ELCYMDELDS0 410-986 VERIZON MARYLAND BLTMMDCHDS3 410-372 VERIZON MARYLAND LEVEL 3 AT&T LOCAL NATIONSLINE AT&T MOBILITY BLTMMDYKDS0 BLTMMDCHXZY BLTMMDCHDS7 BLTMMDCH13Z CLMAMDORGT0 410-430 VERIZON WIRELESS SLBRMDAZCM2 410-310 VERIZON WIRELESS SLBRMDAZCM2 410-842 VERIZON ACCESS TRANSMISSION SERVICES AT&T MOBILITY BLTMMDDNDS0 CLMAMDORGT0 410-604 VERIZON MARYLAND AT&T LOCAL STVLMDSTRS1 WYMLMDMWLMD 410-467 VERIZON MARYLAND BLTMMDUVDS0 410-579 VERIZON MARYLAND EKRGMDELDS0 410-292 AT&T MOBILITY CLMAMDORGT0 410-335 VERIZON MARYLAND CHASMDCHDS0 410-502 VERIZON MARYLAND BLTMMDWLDS0 410-328 VERIZON MARYLAND BLTMMDCHDS2 410-590 VERIZON MARYLAND GLBRMDGLDS0 410-482 CORETEL - MD NATIONSLINE VERIZON MARYLAND IDT AMERICA COMCAST DIGITAL PHONE VERIZON BUSINESS SLBRMDFSDS0 SLBRMDSBX7X GNBOMDGRRS0 QNTWMDARPS0 SLBRMDSBXHX ESTNMDES5MD 410-309 VERIZON MARYLAND CLMAMDOBDS0 410-709 LEVEL 3 CORETEL - MD BROADVIEW NETWORKS BANDWIDTH.COM VERIZON ACCESS TRANSMISSION SERVICES BLTMMDSN6MD BLTMMD91DS1 BLTMMDSNDS1 PIVLMDPKFMD BLTMMDCH45Z BLTMMDDNDS0 410-949 AT&T MOBILITY VERIZON ACCESS TRANSMISSION SERVICES SPRINT NEXTEL CLMAMDORGT0 BLTMMDDNDS0 HNVAMDBIW01 410-258 SPRINT PCS HNVAMDAYCM3 410-295 VERIZON MARYLAND ANNPMDANDS0 410-267 VERIZON MARYLAND ANNPMDANDS0 410-443 LEVEL 3 VERIZON WIRELESS SLBRMDSBXFX SLBRMDAZCM2 410-598 VERIZON WIRELESS CTVLMDBACM3 410-422 AT&T MOBILITY SLBRMDSCXLX 410-756 BANDWIDTH.COM VERIZON MARYLAND GLOBAL TELECOM BROKERS NATIONSLINE BLTMMDCH45Z TNTWMDTNRS0 BLTMMDCH08Z BLTMMDCH13Z 410-280 VERIZON MARYLAND ANNPMDANDS0 410-414 VERIZON MARYLAND ATX TELECOMMUNICATIONS SERVICES PRFRMDPFRS1 BLTMMDCHAMD 410-997 VERIZON MARYLAND CLMAMDCBDS0 410-315 VERIZON MARYLAND SVPKMDSPDS0 410-634 VERIZON MARYLAND CORETEL - MD NATIONSLINE COMCAST DIGITAL PHONE HLBOMDTKRS0 SLBRMDFSDS0 SLBRMDSBX7X SLBRMDSBXHX 410-528 VERIZON MARYLAND T-MOBILE BLTMMDCHDS2 BLTMMDCH40Z 410-347 VERIZON MARYLAND BLTMMDCHDS3 410-481 VERIZON MARYLAND BLTMMDCH1DD 410-581 VERIZON MARYLAND OWMLMDOMDS0 410-717 TW TELECOM LARLMDCC1MD 410-883 VERIZON MARYLAND CORETEL - MD NATIONSLINE SHTWMDSTRS1 SLBRMDFSDS0 SLBRMDSBX7X 410-345 VERIZON MARYLAND OWMLMDOMDS0 410-673 CORETEL - MD VERIZON MARYLAND NATIONSLINE COMCAST DIGITAL PHONE SLBRMDFSDS0 PSTNMDPSRS0 SLBRMDSBX7X SLBRMDSBXHX 410-677 VERIZON MARYLAND SLBRMDSBDS1 410-740 VERIZON MARYLAND CLMAMDCBDS0 410-244 VERIZON MARYLAND BLTMMDCHDS2 410-515 VERIZON MARYLAND WNRNMDWNRS1 410-577 VERIZON MARYLAND OWMLMDOMDS0 410-903 SPRINT PCS HNVAMDAYCM3 410-582 VERIZON MARYLAND COMCAST DIGITAL PHONE GLBRMDGLDS0 WHMRMDATPS1 410-712 VERIZON MARYLAND EKRGMDPKRS0 EKRGMDELDS0 410-552 VERIZON MARYLAND SYVLMDSKDS0 410-499 SPRINT PCS HNVAMDAYCM3 410-981 VERIZON MARYLAND LEVEL 3 FPATMDFRDS0 BLTMMDSNDS1 410-939 VERIZON MARYLAND HDGRMDHVDS0 410-990 VERIZON MARYLAND ANNPMDANDS0 410-917 AT&T MOBILITY CLMAMDORGT0 410-963 SPRINT PCS HNVAMDAYCM3 410-964 VERIZON MARYLAND CLMAMDCBDS0 410-344 VERIZON MARYLAND LEVEL 3 NATIONSLINE LEVEL 3 ATX TELECOMMUNICATIONS SERVICES CHASMDCHDS0 BLTMMDSNDS1 BLTMMDCH13Z BLTMMDCHXZY BLTMMDCHAMD 410-769 VERIZON MARYLAND TWSNMDTWDS0 410-424 LEVEL 3 VERIZON MARYLAND BLTMMDSN6MD GLBRMDGLDS0 410-242 VERIZON MARYLAND ARBTMDARDS0 410-808 SPRINT NEXTEL BLTMMDAFCM1 410-312 VERIZON MARYLAND CLMAMDSRRS0 CLMAMDOBDS0 410-496 VERIZON MARYLAND RNTWMDRADS0 410-995 VERIZON MARYLAND CLMAMDCBDS0 CLMAMDOBDS0 410-213 VERIZON MARYLAND NATIONSLINE VERIZON BUSINESS WOCYMDBARS0 SLBRMDSBX7X ESTNMDES5MD 410-550 VERIZON MARYLAND BLTMMDKMRS0 410-781 VERIZON MARYLAND BALTIMORE-WASHINGTON TELEPHONE COMPANY YMAX COMMUNICATIONS SYVLMDSKDS0 LARLMDEH00T BLTMMDSNDS6 410-357 VERIZON MARYLAND BANDWIDTH.COM PKTNMDPKRS0 BLTMMDCH45Z 410-514 ATX TELECOMMUNICATIONS SERVICES GLOBAL TELECOM BROKERS CORETEL - MD NATIONSLINE ONE COMMUNICATIONS LEVEL 3 VERIZON MARYLAND LEVEL 3 BLTMMDCHAMD BLTMMDCH08Z BLTMMD91DS1 BLTMMDCH13Z BLTMMDCH14Z BLTMMDSNDS1 DRCRMDDCDS0 BLTMMDCHXZY 410-683 VERIZON MARYLAND CYVLMDCKDS0 410-637 VERIZON MARYLAND SPRINT NEXTEL BLTMMDCHDS2 HNVAMDBIW01 410-968 VERIZON MARYLAND CORETEL - MD NATIONSLINE CRFDMDCRRS0 SLBRMDFSDS0 SLBRMDSBX7X 410-483 VERIZON MARYLAND CAVALIER TELEPHONE BLTMMDFRDS0 HNVAMDBHRS0 410-202 NATIONSLINE SPRINT NEXTEL LEVEL 3 VERIZON BUSINESS VERIZON WIRELESS SLBRMDSBX7X SLBRMDEPCM1 SLBRMDSBUMD ESTNMDES5MD SLBRMDAZCM2 410-384 VERIZON MARYLAND LEVEL 3 LEVEL 3 NATIONSLINE YMAX COMMUNICATIONS SVPKMDSPDS0 BLTMMDCHXZY BLTMMDSNDS1 BLTMMDCH13Z BLTMMDSNDS6 410-867 VERIZON MARYLAND VERIZON BUSINESS GLVLMDGLRS1 BLTOMDKHDS0 410-485 VERIZON MARYLAND BLTMMDFRDS0 410-375 VERIZON WIRELESS CTVLMDBACM3 410-221 VERIZON MARYLAND CMBRMDCMDS0 410-282 VERIZON MARYLAND DNDLMDDNDS0 410-340 AT&T MOBILITY CLMAMDORGT0 410-766 VERIZON MARYLAND GLBRMDGLDS0 410-226 VERIZON MARYLAND IDT AMERICA CORETEL - MD OXFRMDOXRS0 QNTWMDARPS0 SLBRMDFSDS0 410-616 VERIZON BUSINESS ATX TELECOMMUNICATIONS SERVICES COMCAST DIGITAL PHONE BLTOMDKHDS0 BLTMMDCHAMD WHMRMDATPS0 410-874 VERIZON ACCESS TRANSMISSION SERVICES ATX TELECOMMUNICATIONS SERVICES COMCAST DIGITAL PHONE BLTMMDDNDS0 BLTMMDCHAMD WHMRMDATPS0 410-224 VERIZON MARYLAND PARLMDPADS0 410-660 SPRINT PCS LEVEL 3 LEVEL 3 WASHDCSWXCZ BLTMMDSNDS1 BLTMMDSNDS2 410-379 VERIZON MARYLAND EKRGMDELDS0 410-810 VERIZON MARYLAND AT&T MOBILITY CHRTMDCHDS0 SLBRMDSCXLX 410-767 VERIZON MARYLAND BLTMMDMDDS0 410-993 VERIZON MARYLAND FPATMDFRDS0 410-516 VERIZON MARYLAND BLTMMDUVDS0 410-479 VERIZON MARYLAND CORETEL - MD DNTNMDDTRS0 SLBRMDFSDS0 410-277 VERIZON MARYLAND WDLWMDWLDS0 410-298 VERIZON MARYLAND WDLWMDWLDS0 410-219 VERIZON MARYLAND SLBRMDSBDS1 SLBRMDSBDS0 410-453 VERIZON MARYLAND CYVLMDCKDS0 410-427 TCG BLTMMDFMDS0 410-848 VERIZON MARYLAND WMNSMDWMDS0 410-736 AT&T MOBILITY VERIZON MARYLAND CLMAMDORGT0 BLTMMDCHDS2 410-946 QUANTUM TELECOMMUNICATIONS LEVEL 3 YMAX COMMUNICATIONS VERIZON MARYLAND BLTMMD91DS2 BLTMMDSNDS1 BLTMMDSNDS6 PARLMDPADS0 410-962 VERIZON MARYLAND BLTMMDCHDS2 410-360 VERIZON MARYLAND ARMGMDARDS0 410-553 VERIZON MARYLAND GLBRMDGLDS0 410-819 VERIZON MARYLAND ESTNMDESDS0 410-425 CORETEL - MD VERIZON MARYLAND SLBRMDFSDS0 SMISMDSIRS0 410-350 VERIZON MARYLAND AT&T MOBILITY BRKLMDBKDS0 CLMAMDORGT0 410-871 VERIZON MARYLAND QUANTUM TELECOMMUNICATIONS AT&T LOCAL WMNSMDWMDS0 BLTMMD91DS2 BLTMMDCHDS7 410-770 VERIZON MARYLAND ESTNMDESDS0 410-661 VERIZON MARYLAND PKVLMDPKDS0 410-433 VERIZON MARYLAND BLTMMDYKDS0 410-236 AT&T MOBILITY CLMAMDORGT0 410-518 VERIZON MARYLAND SVPKMDSPDS0 410-343 VERIZON MARYLAND CORETEL - MD LEVEL 3 ATX TELECOMMUNICATIONS SERVICES BANDWIDTH.COM PKTNMDPKRS0 BLTMMD91DS1 BLTMMDSNDS1 BLTMMDCHAMD BLTMMDCH45Z 410-818 AT&T MOBILITY TCG CLMAMDORGT0 BLTMMDFMDS0 410-252 VERIZON MARYLAND CYVLMDCKDS0 410-924 VERIZON WIRELESS SLBRMDAZCM2 410-900 T-MOBILE ONE COMMUNICATIONS BLTMMDCH40Z BLTMMDCH14Z 410-596 VERIZON WIRELESS WDLWMDEMCM3 410-421 VERIZON MARYLAND SVPKMDSPDS0 410-438 CORETEL - MD VERIZON MARYLAND NATIONSLINE IDT AMERICA SLBRMDFSDS0 SDVLMDSDRS0 SLBRMDSBX7X QNTWMDARPS0 410-920 AT&T MOBILITY EKTNMDEK2MD 410-451 VERIZON MARYLAND COTNMDCRDS0 410-575 LEVEL 3 BANDWIDTH.COM VERIZON MARYLAND BLTMMDSNDS1 BLTMMDCH45Z ABRDMDABDS0 410-751 VERIZON MARYLAND TNTWMDTNRS0 WMNSMDWMDS0 410-205 AT&T MOBILITY COMCAST DIGITAL PHONE XO COMMUNICATIONS INC VERIZON MARYLAND BANDWIDTH.COM CLMAMDORGT0 WHMRMDATPS0 BLTMMDSNDS5 PIVLMDPKDS1 BLTMMDCH45Z 410-868 AT&T MOBILITY CLMAMDORGT0 410-882 VERIZON MARYLAND PKVLMDPKDS0 410-650 VERIZON ACCESS TRANSMISSION SERVICES GLOBAL TELECOM BROKERS LEVEL 3 NATIONSLINE TW TELECOM BLTMMDDNDS0 BLTMMDCH08Z BLTMMDSNDS1 BLTMMDCH13Z LARLMDCC1MD 410-595 TW TELECOM VERIZON MARYLAND LEVEL 3 COMCAST DIGITAL PHONE LARLMDCC1MD GLBRMDGLDS0 BLTMMDSNDS1 WHMRMDATPS1 WHMRMDATPS0 410-435 VERIZON MARYLAND BLTMMDYKDS0 410-727 VERIZON MARYLAND BLTMMDCHDS3 410-844 VERIZON MARYLAND BLTMMDDT4TD 410-402 AT&T MOBILITY VERIZON ACCESS TRANSMISSION SERVICES CLMAMDORGT0 BLTMMDDNDS0 410-754 VERIZON MARYLAND CORETEL - MD VERIZON BUSINESS FDBGMDFERS0 SLBRMDFSDS0 ESTNMDES5MD 410-776 QUANTUM TELECOMMUNICATIONS TCG COMCAST DIGITAL PHONE ONE COMMUNICATIONS BLTMMD91DS2 BLTMMDFMDS0 WHMRMDATPS0 BLTMMDCH14Z 410-834 VERIZON MARYLAND LARLMDLRDS0 410-948 AT&T MOBILITY CLMAMDORGT0 410-305 VERIZON MARYLAND COMCAST DIGITAL PHONE CORETEL - MD LEVEL 3 ODTNMDONDS0 WHMRMDATPS1 BLTMMD91DS1 BLTMMDSNDS1 410-919 VERIZON ACCESS TRANSMISSION SERVICES AT&T MOBILITY BLTMMDDNDS0 CLMAMDORGT0 410-710 SPRINT NEXTEL NATIONSLINE T-MOBILE HNVAMDBIW01 BLTMMDCH13Z BLTMMDCH40Z 410-789 VERIZON MARYLAND BRKLMDBKDS0 410-302 AT&T MOBILITY CLMAMDORGT0 410-787 VERIZON MARYLAND GLBRMDGLDS0 410-737 VERIZON MARYLAND ARBTMDARDS0 410-953 VERIZON MARYLAND CLMAMDSRRS0 410-760 VERIZON MARYLAND GLBRMDGLDS0 410-465 VERIZON MARYLAND ELCYMDELDS0 410-798 VERIZON MARYLAND MAYOMDMYRS1 410-346 LEVEL 3 QUANTUM TELECOMMUNICATIONS VERIZON MARYLAND BLTMMDSNDS1 BLTMMD91DS2 SLRNMDSLRS0 410-836 VERIZON MARYLAND BLARMDBLDS0 410-762 CORETEL - MD VERIZON MARYLAND NATIONSLINE BLTMMD91DS1 GLBRMDGLDS0 BLTMMDCH13Z 410-504 VERIZON MARYLAND LEVEL 3 AT&T MOBILITY COMCAST DIGITAL PHONE COMCAST LONG DISTANCE OWMLMDOMDS0 BLTMMDSNDS1 CLMAMDORGT0 WHMRMDATPS0 BLTPMDHIDS0 410-752 VERIZON MARYLAND BLTMMDCHDS3 410-880 VERIZON MARYLAND LARLMDLRDS0 410-659 VERIZON MARYLAND BLTMMDCHDS3 410-364 CORETEL - MD IDT AMERICA VERIZON MARYLAND COMCAST DIGITAL PHONE SLBRMDFSDS0 QNTWMDARPS0 HLBOMDTKRS0 SLBRMDSBXHX 410-260 VERIZON MARYLAND ANNPMDANDS0 410-822 VERIZON MARYLAND ESTNMDESDS0 410-910 VERIZON ACCESS TRANSMISSION SERVICES BLTMMDDNDS0 410-505 GLOBAL TELECOM BROKERS VERIZON MARYLAND CORETEL - MD LEVEL 3 LEVEL 3 NATIONSLINE ATX TELECOMMUNICATIONS SERVICES BLTMMDCH08Z CLMAMDOBDS0 BLTMMD91DS1 BLTMMDSNDS1 BLTMMDCHXZY BLTMMDCH13Z BLTMMDCHAMD 410-602 VERIZON MARYLAND PIVLMDPKDS1 410-394 VERIZON MARYLAND CORETEL - MD US LEC LEVEL 3 SLMNMDSLRS1 BLTMMD91DS1 CLMAMDJTDS0 BLTMMDSNDS1 410-870 COMCAST DIGITAL PHONE WHMRMDATPS0 410-250 VERIZON MARYLAND OCCYMDMBRS1 410-237 VERIZON MARYLAND BLTMMDCH1DD 410-944 VERIZON MARYLAND WDLWMDWLDS0 410-560 VERIZON MARYLAND CYVLMDCKDS0 410-591 VERIZON WIRELESS WDLWMDEMCM2 410-735 CAVALIER TELEPHONE VERIZON MARYLAND HNVAMDBHRS0 BLTMMDLBDS0 410-363 VERIZON MARYLAND OWMLMDOMDS0 410-201 VERIZON MARYLAND XXXXXXXXXXX 410-367 VERIZON MARYLAND BLTMMDLBDS0 410-404 VERIZON WIRELESS WDLWMDEMCM2 410-448 VERIZON MARYLAND NATIONSLINE WDLWMDWLDS0 BLTMMDCH13Z 410-682 VERIZON MARYLAND ESSXMDEXDS0 410-813 VERIZON MARYLAND MRKKMDMKDS0 410-723 VERIZON MARYLAND OCCYMDONDS0 410-523 VERIZON MARYLAND BLTMMDMDDS0 410-872 VERIZON MARYLAND CLMAMDSRRS0 410-488 VERIZON MARYLAND BLTMMDFRDS0 410-837 VERIZON MARYLAND BLTMMDCHDS3 410-954 VERIZON MARYLAND BLTMMDCHDS3 410-987 VERIZON MARYLAND DRCRMDDCDS0 410-772 VERIZON MARYLAND CLMAMDCBDS0 410-648 CORETEL - 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Block Name Assigned To Switches 410-390 TCG SLBRMDSBXUX 410-835 VERIZON MARYLAND CORETEL - MD NATIONSLINE WLRDMDWRRS1 SLBRMDFSDS0 SLBRMDSBX7X 410-413 VERIZON ACCESS TRANSMISSION SERVICES BLTMMDDNDS0 410-403 VERIZON ACCESS TRANSMISSION SERVICES NATIONSLINE BLTMMDDNDS0 BLTMMDCH13Z 410-644 VERIZON MARYLAND ARBTMDARDS0 410-289 VERIZON MARYLAND OCCYMDOCRS0 410-420 VERIZON MARYLAND GLOBAL TELECOM BROKERS NATIONSLINE BLARMDBLDS0 BLTMMDCH08Z BLTMMDCH13Z 410-501 BROADVIEW NETWORKS COMCAST DIGITAL PHONE LEVEL 3 BLTMMDCH21Z WHMRMDATPS1 BLTMMDSNDS1 410-999 BALTIMORE-WASHINGTON TELEPHONE COMPANY LARLMDEH00T BLTMMDCH25Z 410-881 LEVEL 3 CORETEL - MD VERIZON ACCESS TRANSMISSION SERVICES BLTMMDSNDS1 BLTMMD91DS1 BLTMMDSN6MD BLTMMDDNDS0 410-356 VERIZON MARYLAND OWMLMDOMDS0 410-779 CAVALIER TELEPHONE LEVEL 3 SPRINT NEXTEL HNVAMDBHRS0 BLTMMDSNDS1 HNVAMDBIW01 410-620 VERIZON MARYLAND EKTNMDEKDS0 410-690 NATIONSLINE SPRINT NEXTEL LEVEL 3 AT&T LOCAL SLBRMDSBX7X SLBRMDEPCM1 SLBRMDSBUMD ESTNMDES8MD WYMLMDMWLMD 410-923 VERIZON MARYLAND DRCRMDDCDS0 410-901 VERIZON MARYLAND SPRINT PCS CMBRMDCMDS0 SLBRMDSBRMD 410-532 VERIZON MARYLAND BLTMMDYKDS0 410-381 VERIZON MARYLAND CLMAMDOBDS0 410-790 AT&T MOBILITY CLMAMDORGT0 410-741 VERIZON MARYLAND CORETEL - 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