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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. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| — |
| — |
| 0 |
| AS396972US | DHS-39N - Department of Homeland Security | — | — | 0 |
| AS397063US | CITYOFSTCLOUD-AS-FOR-IPV6-RESERVATIONO - City of St. Cloud, MN | — | — | 0 |
| AS397096US | MICROSOFT-AZURE-DEDICATED - Microsoft Corporation | — | — | 0 |
| AS397164US | STEPCG - STEP CG | — | — | 0 |
| AS397200US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397206US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397221US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397262US | MATRIX - Matrix Executions, LLC | — | — | 0 |
| AS397357US | WCIP-SPRINGCREEK-EX-1 - WELLS COMMUNITY INTERNET PROJECT | — | — | 0 |
| AS397358US | NOVELIS - Novelis Inc | — | — | 0 |
| AS397381US | DTL-ASN1 - Dealer Tire, LLC | — | — | 0 |
| AS397416US | TINYASN01 - Tortoise Capital Advisors, L.L.C. | — | — | 0 |
| AS397438US | WEST-JEFFERSON-OHIO - Village of West Jefferson | — | — | 0 |
| AS397442US | STSL - Strategic Technology Solutions, LLC | — | — | 0 |
| AS397494US | NETSAPIENS-HYPERSCALE-AS01 - netsapiens | — | — | 0 |
| AS397558US | MIDWEST-COMPUTECH - Midwest Computech, Inc. | — | — | 0 |
| AS397560US | 300-SAHARA - 300 West Sahara, LLC | — | — | 0 |
| AS397611US | CCOA-ISP-ASN - Outdoor Management Services, Inc | — | — | 0 |
| AS397623US | RPINC - IT Recovery Group Inc | — | — | 0 |
| AS397788US | PCSO - Putnam County Sheriff's Office | — | — | 0 |
| AS397897US | GIGAPOWER - Gigapower, LLC | — | — | 0 |
| AS398075US | 10G-NET - Red-Proxy, LLC | — | — | 0 |
| AS398122US | CPAC-ASN-01 - Compliant Pharmacy Alliance Cooperative | — | — | 0 |
| AS398218US | TL-001 - Canopy Networks, Inc | — | — | 0 |
| AS398238US | PARAVIS-01 - Paravis, LLC | — | — | 0 |
| AS398276US | ORGANON - Organon & Co. | — | — | 0 |
| AS398524US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398532US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398622US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398629US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398664US | AMEX-TRAN-DFW - American Express Company | — | — | 0 |
| AS398677US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398682US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398683US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398693US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398694US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398718US | MASSIVEIT - MASSIVE IT, LLC | — | — | 0 |
| AS398739US | LIBREMAX-CAP-601 - LibreMax Capital, LLC | — | — | 0 |
| AS398775US | ACADIA-HEALTHCARE - ACADIA HEALTHCARE COMPANY, INC | — | — | 0 |
| AS398814US | EQUINIX-EC-PH - Equinix, Inc. | — | — | 0 |
| AS398817US | FCFS-AS - FIRSTCASH, INC. | — | — | 0 |
| AS398819US | LAT-US-01 - Lufthansa Aviation Training USA, Inc | — | — | 0 |
| AS398893US | CITYOFTUCSON-WIRELESS - City of Tucson | — | — | 0 |
| AS399025US | WESTNETWORKS-GNV-FL-02 - West Networks LLC | — | — | 0 |
| AS399085US | MASERGY-SASE - Masergy Communications, Inc. | — | — | 0 |
| AS399109US | HMIT-W1 - Dedicated IT, LLC | — | — | 0 |