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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS397046US | CRYSTALBN - Crystal Broadband Networks, INC. | — | — | 0 |
| AS12203US | POP1 - Webster Bank, National Association | — | — | 0 |
| AS12270US | TWC-12270-NA - Charter Communications Inc | — | — | 0 |
| AS11606US | ARCHTOP-FIBER-WVTC02 - Archtop Fiber | — | — | 0 |
| AS11508US | AS-VULTR2 - The Constant Company, LLC | — | — | 0 |
| AS394616US | TIRE-HOSTING-INC - THE WHEEL AND TIRE CLUB, INC | — | — | 0 |
| AS10642US | POWERNET - DHM Information Management, Inc | — | — | 0 |
| AS401431US | BLUE-QUARTZ-0 - Blue Quartz | — | 5 | 5 |
| AS393752US | DE-CIX-RIC-AS - DE-CIX North America Inc. | — | — | 0 |
| AS36805US | ASN-APPNEXUS-OAS - AppNexus Resources Inc. | — | — | 0 |
| AS396640US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS36439US | RSIVPN - Rimini Street | — | — | 0 |
| AS36274US | ERIC-ATLANTADC - Ericsson Inc. | — | — | 0 |
| AS36370US | MEMX-LLC - MEMX | — | — | 0 |
| AS33681US | COMPTRK - Competitrack Inc. | — | — | 0 |
| AS33578US | ALTER-TRADING - ALTER TRADING COMPANY | — | — | 0 |
| AS40132US | KITTELSON-DIGIWEST-BOISE - KITTELSON AND ASSOCIATES, INC. | — | — | 0 |
| AS396577US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS36816US | BBIX-USA-CH - BBIX USA, INC. | — | — | 0 |
| AS396699US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS36664US | HTBAS - Enotch Technologies, LLC | — | — | 0 |
| AS36784US | SOCRATES - SOCRATES | — | — | 0 |
| AS32272US | UNWIRED-ASN - Unwired Broadband, LLC | — | — | 0 |
| AS32271US | TRAPP-ONLINE - Trapp Online, LLC | — | — | 0 |
| AS32070US | TAMNET - TAM Network | — | — | 0 |
| AS32502US | SLCL-ASN - St. Louis County Library | — | — | 0 |
| AS32116US | YAHOO-4 - Yahoo Holdings Inc. | — | — | 0 |
| AS33451US | METACAPITAL-NYC - METACAPITAL MANAGEMENT, L.P. | — | — | 0 |
| AS396255US | FRIT - Federal Realty Investment Trust | — | — | 0 |
| AS396795US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS397250US | 69-55-21X - Leader Communications LLC | — | — | 0 |
| AS398541US | PELOTON-01 - Peloton Interactive Inc. | — | — | 0 |
| AS398503US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398012US | NISLABTESTCUSTOMER - Comporium, Inc | — | — | 0 |
| AS398333US | CARBYNE-POI - Carbyne Inc. | — | — | 0 |
| AS397607US | UIOWA-MIC-AS397607 - University of Iowa | — | — | 0 |
| AS397583US | RACINE-COUNTY-1 - Racine County | — | — | 0 |
| AS200332US | FOLFY-ASN Nolan Trapp | — | 1 | 1 |
| AS218869US | ORG-PGL22-AS ProWave Groups LLC | — | — | 0 |
| AS395492US | IOVATION-AS15301 - Trans | — | — | 0 |
| AS395426US | ASN-NCS - NATIONAL COMMERCIAL SERVICES | — | — | 0 |
| AS395255US | UDEMY-AS - Udemy | — | — | 0 |
| AS395373US | PV-ISP - PureVoltage Hosting Inc. | — | — | 0 |
| AS396666US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396664US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396626US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |