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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. | 211.2M | 21,157 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,247 |
| 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 | 400 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,712 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,959 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,302 |
| — |
| — |
| 0 |
| AS18946US | FANNIEMAE-2 - Fannie Mae | — | — | 0 |
| AS19025US | XO-ASN12 - Verizon Business | — | — | 0 |
| AS19035US | HIX - Hawaii Internet Exchange | — | — | 0 |
| AS19066US | WIREDTREE - Liquid Web, L.L.C | — | — | 0 |
| AS19130US | DOCKNET - Aerioconnect | — | — | 0 |
| AS19183US | SHAFTER-ONLINE-01 - City of Shafter | — | — | 0 |
| AS19304US | GEORGETOWN-COLLEGE - Georgetown College | — | — | 0 |
| AS19327US | BBO-2 - BroadbandONE, LLC | — | — | 0 |
| AS19414US | RHODEISLAND-IX - Irontrust Networks | — | — | 0 |
| AS19485US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS19505US | STARWOODVO-OOC - Starwood Vacation Ownership | — | — | 0 |
| AS19508US | AZ TECHNOLOGY OF AMERICA - Allianz Technology of America, Inc. | — | — | 0 |
| AS19547US | ICOMMERCE - iCommerce, Inc. | — | — | 0 |
| AS19560US | GWHA - GW Hannaway & Associates | — | — | 0 |
| AS19598US | AS19598 - Ontario Datacenter LLC | — | — | 0 |
| AS19644US | WANLINK-OPEN - The Liberty Hampshire Company, LLC | — | — | 0 |
| AS19654US | BBO-3 - BroadbandONE, LLC | — | — | 0 |
| AS19703US | VALUELINE - Value Line Publishing Inc. | — | — | 0 |
| AS19837US | 206-208-88-0 - BUILDERS FIRSTSOURCE, INC. | — | — | 0 |
| AS19882US | AS-LL - Acuity Brands, Inc. | — | — | 0 |
| AS19892US | HUBERTASN - HUBERT COMPANY, LLC | — | — | 0 |
| AS19916US | ASTRUM-0001 - OLS LLC | — | — | 0 |
| AS19954US | ATDESK - Citigroup Inc. | — | — | 0 |
| AS20064US | ASH-COLO - Resonate Networks, Inc. | — | — | 0 |
| AS20093US | ZEROLAG - Performive LLC | — | — | 0 |
| AS20156US | PGCPS - Board of Education of Prince George's County | — | — | 0 |
| AS20165US | EXPEDIA-PHX2 - EXPEDIA, INC | — | — | 0 |
| AS20216US | CBSITE-ASH - CareerBuilder, LLC | — | — | 0 |
| AS20219US | MTSKYWEST - Montana Sky West LLC | — | — | 0 |
| AS20309US | ASN-20309 - Nasdaq, Inc. | — | — | 0 |
| AS20431US | VGRS-AC19 - VeriSign Global Registry Services | — | — | 0 |
| AS20458US | ASN1 - CAS Severn | — | — | 0 |
| AS20471US | MICHAEL - Michael Newcomb, Sole Proprietorship | — | — | 0 |
| AS21536US | MILLENNIUM-PHARMACY-SYSTEMS - Millennium Pharmacy Systems, Inc. | — | — | 0 |
| AS21588US | SPOKEO - Spokeo, Inc | — | — | 0 |
| AS21653US | CIMCO3 - First Communications LLC | — | — | 0 |
| AS21684US | XIATIAN-LLC - XIATIAN.LLC | — | — | 0 |
| AS21815US | WEATHERFORDCOLLEGE - Weatherford College | — | — | 0 |
| AS21850US | ACI-WORLDWIDE - ACI Worldwide, Inc. | — | — | 0 |
| AS21878US | SAGE-PUBLIC-AS - Sage Publications, Inc. | — | — | 0 |
| AS21954US | TELES-27 - Telestream, Inc. | — | — | 0 |
| AS22017US | ADP-EDC - CDK Global, LLC | — | — | 0 |
| AS22036US | DT-RTS - Dealertrack, Inc. | — | — | 0 |
| AS22057US | SAP-DC-NS - SAP America Inc. | — | — | 0 |
| AS22107US | DIGITALAI - Digital.ai Software, Inc. | — | — | 0 |
| AS22117US | COMNEXIA - COMNEXIA Corporation | — | — | 0 |