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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,999 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,154 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 231 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,882 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,990 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,318 |
| 2K |
| 65.5K |
| 9 |
| AS32194US | ASN-PHOENIX-CHILDRENS - PHOENIX CHILDREN'S HOSPITAL | 2K | — | 5 |
| AS40548US | INFINERA-US - Nokia of America Corporation | 2K | — | 5 |
| AS18793US | COM-PAIR-BROADBAND - Com-Pair Services | 2K | — | 4 |
| AS16581US | DEEPINFRA-01 - Deep Infra Inc. | 2K | — | 8 |
| AS23268US | NEULION - NeuLion, Inc. | 2K | — | 8 |
| AS46434US | MITSU-10-ASN - MUFG Securities Americas Inc. | 2K | — | 7 |
| AS3826US | HILTON-C - Hilton Worldwide Holdings Inc | 2K | — | 2 |
| AS19609US | MANDA-VEEDIX-NET - M&A Technology, Inc | 2K | — | 2 |
| AS202021US | RSOE-EU Take-Two Interactive Software, Inc. | 2K | — | 5 |
| AS399064US | CONTENTGURU-US - Content Guru Inc | 2K | — | 8 |
| AS394381US | L7-CONNECT - L7 Connect | 2K | — | 8 |
| AS22955US | CHHS-1 - Children's Hospital & Health System, Inc. | 2K | — | 5 |
| AS31801US | BHS-NET-LOU - Baptist Healthcare System | 2K | — | 8 |
| AS394738US | COLOCROSSING - HostPapa | 2K | — | 4 |
| AS36252US | TNWEB-LEW-001 - TNWEB LLC | 2K | — | 1 |
| AS36451US | RIGETTI-BERKELEY-01 - Rigetti Computing | 2K | — | 5 |
| AS18787US | DANAHER - Danaher | 2K | — | 6 |
| AS36591US | ZULUCARE - PixelRiver | 2K | — | 3 |
| AS46994US | TELAX09 - Telax Hosted Call Centre | 2K | — | 3 |
| AS11838US | HGTC-ASN - Horry-Georgetown Technical College | 2K | — | 4 |
| AS398224US | UNITEDBANK-01 - United Bankshares, Inc. | 2K | — | 4 |
| AS54312US | ROCKETFUEL - Rocket Fuel Inc. | 2K | — | 7 |
| AS31756US | COLORADOSPRINGS-GOV - City of Colorado Springs | 2K | — | 1 |
| AS17269US | NCFB-ASN - North Carolina Farm Bureau Mutual Insurance Company Inc | 2K | — | 3 |
| AS40685US | ANACOMP-SD - Doculynx Operations, LLC | 2K | — | 1 |
| AS21568US | NYTD - The New York Times Company | 2K | — | 1 |
| AS17093US | FAIRPOINT - Fidium | 2K | — | 5 |
| AS21904US | POWER1COM - PowerOne | 2K | — | 8 |
| AS11716US | WON-AS - William O'Neil & Company | 2K | — | 8 |
| AS19579US | THEVILLAGES - The Villages Operating Company | 2K | — | 1 |
| AS397340US | GLASTEL-ISP - Glasford Telephone Company | 2K | — | 4 |
| AS14303US | MEMASN1 - City of Memphis | 2K | — | 2 |
| AS46812US | LCS - London Computer Systems, Inc | 2K | — | 8 |
| AS398266US | ZIPLINK-SYSTEMS - ZipLink Systems LLC | 2K | 4.1K | 5 |
| AS53797US | PINPOINTE-N1 - Pinpointe On-Demand, Inc. | 2K | — | 1 |
| AS4880US | LIFELINE-ASN - Lifeline Systems, Company | 2K | — | 6 |
| AS54407US | ARENT-FOX-LLP - ArentFox Schiff LLP | 2K | — | 8 |
| AS36323US | EZRI-36323 - Ezri Inc | 2K | — | 2 |
| AS396447US | SILVERIP-MW-ASN - SilverIP Communications Inc. | 2K | — | 6 |
| AS26876US | CHICOS - chico's fas inc | 2K | — | 6 |
| AS14143US | RSINET-1 - Rock Solid Internet & Telephone | 2K | — | 1 |
| AS393339US | CONSILIO - Consilio | 2K | — | 8 |
| AS20038US | ALLENTOWNSD - Allentown School District | 2K | — | 1 |
| AS14849US | SCSD-AS - Superior Court of California, County of San Diego | 2K | — | 5 |
| AS397886US | SUPERNET - SUPERNet | 2K | — | 5 |
| AS36339US | SMART-CITY-SACC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 2K | 16 | 5 |