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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. | 211.1M | 21,109 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,674 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,430 |
| — |
| 1 |
| AS26640US | OGFIBER - Oso Grande Technologies, Inc. | 256 | — | 1 |
| AS395951US | ZIPDATA - ZIPDATA.NET | 256 | — | 1 |
| AS46236US | GUTHRIE-HEALTHCARE-SYSTEMS - Guthrie Healthcare System | 256 | — | 1 |
| AS26032US | TRPC7 - TEST RITE PRODUCTS CORP. | 256 | — | 1 |
| AS46397US | MOSES-ASN - Moses & Singer LLP | 256 | — | 1 |
| AS397282US | CASTLEVPN - Castle VPN | 256 | — | 1 |
| AS5733US | MONRO-1 - Monroe County | 256 | — | 1 |
| AS40713US | OCI-01 - Orbiting Code, Inc. | 256 | 4.1K | 2 |
| AS40791US | COR-ASN - City of Redding | 256 | — | 1 |
| AS401721US | EVOLUTIONFIBER-US-TX - Evolution Fiber LLC | 256 | 64 | 2 |
| AS398550US | ICCMS - Itawamba Community College | 256 | — | 1 |
| AS14915US | FDBS-BCS - Financial Database Services | 256 | — | 1 |
| AS402156US | CLOUDLOGICS-1 - CloudLogics LLC | 256 | — | 1 |
| AS401787US | OMNITEC - Omnitec Corporation | 256 | — | 1 |
| AS35866US | SILVER-CHIP - Silver Chip Interactive | 256 | 65 | 3 |
| AS30087US | APCO - Automobile Protection Corporation | 256 | — | 1 |
| AS33630US | WCSR - WOMBLE CARLYLE SANDRIDGE & RICE, LLP | 256 | — | 1 |
| AS26997US | GPJOSEPH - Joseph Hage Aaronson LLC | 256 | — | 1 |
| AS46900US | REPC-AS - Rushmore Electric Power Cooperative, Inc. | 256 | 256 | 2 |
| AS14662US | CSTONE-NET - Cornerstone Systems Inc. | 256 | — | 1 |
| AS46168US | CALLTOWER - CallTower, Inc. | 256 | — | 1 |
| AS39936US | PAYLOCITY-LAB - Paylocity Corporation | 256 | — | 1 |
| AS7064US | WBMLP-MUNI-01 - West Boylston Municipal Light Plant | 256 | — | 1 |
| AS2738US | AS-SHIELDS-COM - Shields Health Care Group | 256 | — | 1 |
| AS214691US | CubeData Timothy McDaniel | 256 | — | 1 |
| AS14305US | AS14305 - Accuray Incorporated | 256 | — | 1 |
| AS216102US | XeroGroup_LLC XeroGroup LLC | 256 | — | 1 |
| AS400134US | BON-ASN-01 - Balance of Nature | 256 | — | 1 |
| AS54561US | SECUREDRAGON - Secure Dragon LLC. | 256 | 1 | 2 |
| AS54495US | BYTESPUR - Bytespur Corporation | 256 | 1 | 2 |
| AS33648US | INTERNET-LLC - Patriot Broadband | 256 | 1.5K | 7 |
| AS395609US | COF-EQX-ASH-PP - Capital One Financial Corporation | 256 | — | 1 |
| AS16901US | MUTUAL - Mutual of Enumclaw Insurance Company | 256 | — | 1 |
| AS47061US | 5QCLOUDY - 5Q Cloud | 256 | — | 1 |
| AS40008US | REDWOOD-MATERIALS - Redwood Materials, Inc. | 256 | — | 1 |
| AS62742US | BDNET-01 - Blackdragon Networks, LLC | 256 | — | 1 |
| AS401986US | COHERENTLY - Coherently Inc | 256 | 65.5K | 2 |
| AS62680US | CBJ-JUNEAU-AK - City & Borough of Juneau | 256 | — | 1 |
| AS400000US | PCB - PCB Piezotronics, Inc. | 256 | — | 1 |
| AS22897US | 84LUMB-CORP - 84 LUMBER COMPANY | 256 | — | 1 |
| AS401724US | HAMILTON-CONNECTS - Hamilton Connects | 256 | 65.5K | 2 |
| AS23347US | ZYC - ZYC Network LLC | 256 | 264 | 7 |
| AS399271US | WALTHAM-INTERNET - BIVF Management Services, LLC | 256 | — | 1 |
| AS401114US | COLUMBIACOUNTYWI - Columbia County | 256 | — | 1 |
| AS40466US | OSI-FISERV-HAWAII-DC - Fiserv Solutions, LLC | 256 | — | 1 |
| AS399860US | CRSCHOOLS-1 - CEDAR RAPIDS COMMUNITY SCHOOL DISTRICT | 256 | — | 1 |