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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 | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| 512 |
| — |
| 2 |
| AS55239US | VWNA-AS2 - Volkswagen Group of America, Inc. | 512 | — | 2 |
| AS36565US | COUNTY-OF-MONTGOMERY-PA - County of Montgomery | 512 | — | 2 |
| AS54256US | VELOCITY-COMMUNICATIONS - Velocity Communications Inc. | 512 | 65.5K | 3 |
| AS1219US | NCUBE-OREGON-AS - Oracle Corporation | 512 | 1 | 3 |
| AS5036US | WCA - Whalley Computer Associates | 512 | — | 2 |
| AS3425US | ESNET-AS - ESnet | 512 | — | 2 |
| AS15718US | FL-749-15718 - FROSTWEB LLC | 512 | — | 2 |
| AS930US | CITY-OF-CELINA - CITY OF CELINA | 512 | — | 2 |
| AS402444US | LUMMI-NATION-CONNECT - Lummi | 512 | 65.5K | 2 |
| AS36279US | MISERI-COLLEGE-1 - Misericordia University | 512 | — | 2 |
| AS927US | QUINTILLION - Quintillion Subsea Operations, LLC | 512 | — | 2 |
| AS54262US | US-CERT-01 - CERTUSOFT INC | 512 | — | 2 |
| AS53738US | DDC-JVL - DATA DIMENSIONS CORP | 512 | — | 1 |
| AS395849US | OXIDE - Oxide Computer Company | 512 | 1 | 3 |
| AS36232US | NEXTGI - Nextgi, LLC. | 512 | 1 | 3 |
| AS214300US | Layer4-Group Layer 4 Group LLC | 512 | — | 2 |
| AS19193US | SPIDERROCK-GW - SPIDERROCK HOLDINGS, LLC | 512 | — | 2 |
| AS40632US | FGLIFE-COLO1 - Fidelity & Guaranty Life | 512 | — | 2 |
| AS394176US | I-NET-USA - I-NET USA, LLC | 512 | — | 1 |
| AS393378US | SACFCU-P7148 - Cobalt Credit Union | 512 | — | 2 |
| AS22554US | PEWNETWORK - The Pew Charitable Trusts | 512 | — | 2 |
| AS398737US | INTELLIVOICE - IntelliVoice | 512 | — | 2 |
| AS53902US | FLUXORUS-NETWORKS - Fluxorus Networks | 512 | 256 | 3 |
| AS399562US | IZT-CLOUD-UNIVERSAL - IZT Cloud | 512 | — | 2 |
| AS399285US | CSLICO - Citizens Financial Corporation | 512 | — | 2 |
| AS29750US | ALASKA-AIRGROUP-IGQ - Alaska Airlines, Inc. | 512 | — | 2 |
| AS32766US | FIDELITY-BANK - Fidelity Bank, N.A. | 512 | — | 2 |
| AS210266US | PHOENIXNAP-PL PHOENIX NAP, LLC. | 512 | 257 | 4 |
| AS55111US | CALVERT-COUNTY - Calvert County | 512 | — | 1 |
| AS11651US | AS-TKCHOLDINGS-LLC - Centric Group, LLC | 512 | — | 2 |
| AS13747US | DMIC-ASN1 - DONEGAL MUTUAL INSURANCE | 512 | — | 2 |
| AS55295US | NEWDAYASN - New Day Broadband One LLC | 512 | — | 1 |
| AS46140US | CSI - CAMP SYSTEMS INTERNATIONAL | 512 | — | 2 |
| AS7733US | FRZRMTN - Frazier Mountain Internet Service | 512 | — | 2 |
| AS11121US | FIRSTDATACORP-DB - Fiserv Solutions, LLC | 512 | — | 2 |
| AS35008US | KERFUFFLE - Kerfuffle, LLC | 512 | 257 | 4 |
| AS11145US | VRIS-11145-11149 - Verizon Business | 512 | — | 1 |
| AS46548US | ASN1 - New york City Housing Development Corporation | 512 | — | 2 |
| AS40227US | IPNS-LAB - IP Networked Services Inc. | 512 | — | 2 |
| AS199783US | PTTECH-AS PassThru Technologies LLC | 512 | — | 2 |
| AS400705US | JMRH-NET - Highland Networks, LLC | 512 | — | 1 |
| AS14911US | TMGAS - Taylor Made Golf Company, Inc. | 512 | — | 2 |
| AS401366US | VOX-FLOW - Vox Flow LLC | 512 | 1 | 3 |
| AS397999US | TGNA-WPMT - TEGNA Inc. | 512 | — | 2 |
| AS396439US | HCAA-ASN01 - Hillsborough County Aviation Authority | 512 | — | 2 |
| AS27523US | KAWAII-NETWORKS - Kawaii Networks LLC | 512 | 518 | 10 |