Comcast CableComcast CableIP Ranges103,871Total IPs60,822,180 AS33667 US JP Philadelphia Chicago Houston+2486 more
AT&T InternetAT&T InternetIP Ranges58,354Total IPs74,019,493 AS7018 US GB CA+5 more Houston Chicago St Louis+1610 more
Cogent CommunicationsCogent CommunicationsIP Ranges20,325Total IPs22,021,069 AS174 US CA GB+78 more Washington New York Brooklyn+1624 more
LumenLumenIP Ranges10,193Total IPs32,360,666 AS3356 US GB BR+47 more Wichita New York Houston+1113 more
CenturyLinkCenturyLinkIP Ranges9,756Total IPs25,245,649 AS203 US GB CA+10 more Phoenix Denver Seattle+1209 more
Verizon Internet ServicesVerizon Internet ServicesIP Ranges9,185Total IPs30,581,130 AS701 US MX GB+2 more Washington Philadelphia Brooklyn+1223 more
Comcast BusinessComcast BusinessIP Ranges8,799Total IPs7,393,500 AS53851 US MD GB Portland Morrison Denver+2057 more
AT&T BusinessAT&T BusinessIP Ranges6,153Total IPs16,196,286 AS6269 US PR Chicago Atlanta Houston+1296 more
Verizon Fios BusinessVerizon Fios BusinessIP Ranges5,114Total IPs1,548,287 AS701 US New York Brooklyn Queens+825 more
Optimum OnlineOptimum OnlineIP Ranges4,671Total IPs4,290,445 AS6128 US Brooklyn The Bronx Staten Island+349 more
Verizon WirelessVerizon WirelessIP Ranges3,436Total IPs21,070,589 AS6167 US CR Charlotte Columbus Brooklyn+305 more
Astound BroadbandAstound BroadbandIP Ranges2,983Total IPs5,032,540 AS6079 US SC NL+15 more Ashburn Chicago Upper Darby+225 more
Optimum FiberOptimum FiberIP Ranges1,108Total IPs723,639 AS6128 US The Bronx Brooklyn Newark+209 more
US Department of DefenseUS Department of DefenseIP Ranges744Total IPs4,472,320 AS668 US Yuma Killeen El Paso+84 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 Brooklyn New York Silver Spring+35 more
National Park ServiceNational Park ServiceIP Ranges150Total IPs1,075,200 AS22284 US Yuma Denver Reston+18 more
AT&T Internet ServicesAT&T Internet ServicesIP Ranges137Total IPs739,336 AS4185 US GB NL+4 more Dallas Oakton Washington+19 more
National Institutes of HealthNational Institutes of HealthIP Ranges56Total IPs333,312 AS3527 US Bethesda Gaithersburg Durham+7 more
Allied Telecom Group, LLCAllied Telecom Group, LLCIP Ranges39Total IPs77,824 AS22925 US Washington Silver Spring Alexandria+7 more
University of MarylandUniversity of MarylandIP Ranges26Total IPs249,856 AS10886 US Silver Spring College Park Capitol Heights+8 more
Salt Lake City CorporationSalt Lake City CorporationIP Ranges13Total IPs4,608 AS22473 US Salt Lake City Rockville
National Library of MedicineNational Library of MedicineIP Ranges8Total IPs67,840 AS70 US Potomac Rockville Silver Spring
Bloomingdale Home TelephoneBloomingdale Home TelephoneIP Ranges6Total IPs2,816 AS54239 US Rockville Bloomingdale
TT Government SolutionsTT Government SolutionsIP Ranges5Total IPs2,304 AS54735 US Princeton Hallandale Rockville+1 more