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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.7M | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.9M | 20,988 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,222 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,578 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,934 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.3M | 4,544 |
| 27.6K |
| 131.1K |
| 40 |
| AS399673US | TRI-COGO - Tri-CoGo | 27.6K | — | 26 |
| AS396287US | NEXTPOWEREDBYNAECLLC - Next, Powered by NAEC, LLC | 27.6K | — | 6 |
| AS55044US | LRCSNET - LR Communications, Inc. | 27.6K | — | 63 |
| AS29951US | SYPTEC-NOC - Syptec | 27.4K | — | 63 |
| AS53271US | PHENIXCITYCABLE - Phenix Cable | 27.4K | — | 9 |
| AS11409US | EFXSECURE - Equifax, Inc. | 27.4K | 1 | 27 |
| AS3738US | SSB-ASN-3738 - State Street Bank and Trust Company | 27.4K | — | 87 |
| AS19149US | US-SIGNAL-IA01 - US Signal Company, L.L.C. | 27.4K | 256 | 9 |
| AS6423US | DF-PTL2-3 - Digital Fortress | 27.4K | 512 | 11 |
| AS62728US | VGPE-ASN1 - VELOCITY, A MANAGED SERVICES COMPANY | 27.1K | — | 11 |
| AS215595US | SPARKTECH SparkTech LTD | 27.1K | — | 96 |
| AS40306US | VIASAT-3 - ViaSat,Inc. | 27.1K | — | 106 |
| AS396956US | MLEC-ASN-1 - Meriwether Lewis Electric Cooperative | 27.1K | 65.5K | 12 |
| AS6507US | RIOT-NA1 - Riot Games, Inc | 27.1K | 524.3K | 36 |
| AS394708US | HORIZONCHILLICOTHETELEPHONE - Horizon Telcom Inc. | 26.9K | — | 46 |
| AS29831US | FONENET - FONE.NET, LLC | 26.9K | 65.6K | 80 |
| AS12054US | ALAMEDACOUNTYDATAPROCESSING - Alameda County | 26.9K | — | 5 |
| AS13791US | INTERNAP-BLK3 - Unitas Global | 26.9K | 65.5K | 24 |
| AS2639US | ZOHO-AS - ZOHO | 26.9K | 13 | 44 |
| AS2003US | EPRI-PA - Electric Power Research Institute | 26.9K | — | 28 |
| AS5049US | MORGAN-ASN - Morgan Stanley Group Inc. | 26.9K | — | 20 |
| AS394684US | AS-GOLD - GOLD DATA USA INC | 26.9K | 262.1K | 33 |
| AS40627US | RC-COLO1 - RingCentral Inc | 26.9K | 1 | 36 |
| AS26831US | CAMERON-COMMUNICATIONS - Cameron Communications, LLC | 26.9K | — | 83 |
| AS46303US | POPP-COM - POPP.com, Inc. | 26.9K | — | 9 |
| AS54501US | SVEC-1 - Sequachee Valley Electric Cooperative | 26.9K | 98.3K | 36 |
| AS32645US | PIVOT - Fidium | 26.6K | — | 31 |
| AS11049US | DYN - Oracle Corporation | 26.6K | 28.3K | 53 |
| AS19637US | AVG19637 - Avago Technologies U.S. Inc. | 26.6K | 14 | 106 |
| AS11734US | CONNECTRIA-ASN-1 - Connectria | 26.6K | 12.3K | 73 |
| AS25645US | MOMENTUM-ACCESS - Momentum Telecom, Inc. | 26.6K | 13 | 94 |
| AS7224US | AMAZON-AS - Amazon.com, Inc. | 26.6K | — | 30 |
| AS393398US | ASN-DIS - 1515 ROUNDTABLE DR PROPERTY, LLC | 26.6K | 65.5K | 44 |
| AS53306US | OUTSCALE-INC - OUTSCALE INC | 26.6K | — | 9 |
| AS53768US | LABCORP - Laboratory Corporation of America | 26.4K | — | 16 |
| AS33362US | WIKTEL - Wikstrom Telephone Company, Incorporated | 26.4K | 1M | 15 |
| AS50245US | SERVEREL-AS Serverel Inc. | 26.4K | 524.3K | 16 |
| AS11448US | CLEARWAVE-FIBER - Clearwave Communications | 26.4K | 65.5K | 35 |
| AS22903US | EDGE-HOSTING - Databank Holdings, Ltd | 26.1K | 1 | 54 |
| AS21737US | SPRINGNET2-NET - SpringNet | 26.1K | 65.5K | 11 |
| AS10962US | CERNER-CORP-ASN - Cerner Corporation | 26.1K | — | 5 |
| AS13855US | CFU-NET - The Municipal Communications Utility of the City of Cedar Falls, Iowa | 26.1K | 65.5K | 11 |
| AS20474US | NCIDATACOM - NCI Data.com, Inc. | 26.1K | — | 22 |
| AS22255US | ALLEGHENYHEALTHNETWORK - Allegheny Health Network | 26.1K | — | 18 |
| AS12285US | ONE-ELEVEN - ShawneeLink Corporation | 26.1K | — | 9 |
| AS23342US | UNITEDLAYER - Unitedlayer, Inc. | 25.9K | 73.7K | 26 |