Comcast CableComcast CableIP Ranges101,286Total IPs60,804,233 AS33667 US JP Chicago Houston Philadelphia+2482 more
AT&T InternetAT&T InternetIP Ranges56,403Total IPs74,027,968 AS7018 US GB CA+5 more Houston Chicago St Louis+1573 more
Cogent CommunicationsCogent CommunicationsIP Ranges20,023Total IPs22,391,203 AS174 US GB CA+80 more Washington New York Ashburn+1614 more
LumenLumenIP Ranges10,161Total IPs32,412,187 AS3356 US GB BR+47 more Wichita Houston Washington+1091 more
CenturyLinkCenturyLinkIP Ranges9,460Total IPs25,370,600 AS203 US GB CA+10 more Phoenix Denver Seattle+1207 more
Verizon Internet ServicesVerizon Internet ServicesIP Ranges9,213Total IPs30,534,791 AS701 US MX GB+2 more New York Philadelphia Queens+1192 more
Comcast BusinessComcast BusinessIP Ranges8,798Total IPs7,394,780 AS53851 US MD GB Denver Portland Chicago+2049 more
AT&T BusinessAT&T BusinessIP Ranges6,164Total IPs16,195,518 AS6269 US PR Chicago Atlanta Houston+1266 more
Verizon Fios BusinessVerizon Fios BusinessIP Ranges5,097Total IPs1,543,167 AS701 US New York Brooklyn Queens+819 more
Optimum OnlineOptimum OnlineIP Ranges4,606Total IPs4,296,595 AS6128 US Brooklyn The Bronx Great Neck+344 more
Verizon WirelessVerizon WirelessIP Ranges3,438Total IPs21,070,589 AS6167 US CR Queens Columbus Celina+318 more
Astound BroadbandAstound BroadbandIP Ranges2,933Total IPs4,989,024 AS6079 US SC MU+16 more Ashburn Chicago Upper Darby+234 more
Optimum FiberOptimum FiberIP Ranges1,061Total IPs723,645 AS6128 US The Bronx Newark Brooklyn+211 more
US Department of DefenseUS Department of DefenseIP Ranges750Total IPs4,401,920 AS668 US Vicksburg Yuma El Paso+87 more
WhiteSky Communications, LLCWhiteSky Communications, LLCIP Ranges291Total IPs162,047 AS54119 US Dallas Carbondale Columbus+88 more
365 Data Centers365 Data CentersIP Ranges155Total IPs126,648 AS29838 US GB New York Jersey City Washington+33 more
Ntt-global-data-centers-america-incNtt-global-data-centers-america-incIP Ranges80Total IPs54,784 AS395368 US Sacramento Vallejo Garland+10 more
Intelsat Global Service CorporationIntelsat Global Service CorporationIP Ranges66Total IPs254,208 AS22351 US ZA TZ+9 more Ellenwood Seattle Rockville+3 more
National Institutes of HealthNational Institutes of HealthIP Ranges56Total IPs333,312 AS3527 US Bethesda Boonsboro Durham+10 more
Allied Telecom Group, LLCAllied Telecom Group, LLCIP Ranges39Total IPs77,824 AS22925 US Washington Silver Spring Hyattsville+7 more
University of MarylandUniversity of MarylandIP Ranges26Total IPs249,856 AS10886 US College Park Capitol Heights Annapolis+8 more
US National Institute of Standards & TechnologyUS National Institute of Standards & TechnologyIP Ranges21Total IPs65,024 AS49 US Rockville Germantown Hagerstown+6 more
US Food and Drug AdministrationUS Food and Drug AdministrationIP Ranges12Total IPs65,536 AS22828 US Rockville
National Library of MedicineNational Library of MedicineIP Ranges8Total IPs67,840 AS70 US Potomac Rockville Bethesda
Bloomingdale Home TelephoneBloomingdale Home TelephoneIP Ranges6Total IPs2,816 AS54239 US Rockville Bloomingdale