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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 | 21,264 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,722 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,957 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,297 |
| — |
| — |
| 0 |
| AS395716US | WESTERN-HEIGHTS-PUBLIC-SCHOOLS - Western Heights Public Schools | — | — | 0 |
| AS395803US | REDHAT-4 - Red Hat, Inc. | — | — | 0 |
| AS395830US | PRODUCTION - Citizens Business Bank | — | — | 0 |
| AS395875US | EVERLIGHTRADIOLOGY-AS-NA - Everlight Radiology | — | — | 0 |
| AS395910US | GOH - Gift of Hope Organ & Tissue Donor Network | — | — | 0 |
| AS395920US | PH-LSK-004 - Parker Hannifin Corporation | — | — | 0 |
| AS395995US | ROK-MKE - ROCKWELL AUTOMATION Inc. | — | — | 0 |
| AS396132US | LOUISIANA-SECRETARY-OF-STATE - Louisiana Secretary of State | — | — | 0 |
| AS396546US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396588US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396614US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396660US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396680US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396690US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396693US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396695US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396705US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396708US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396724US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396735US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396750US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396793US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396800US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396852US | CFS-NY - Clarity Fiber Solutions | — | — | 0 |
| AS396855US | TNC - TNC COMMUNICATIONS, INC. | — | — | 0 |
| AS396863US | COBA-SYSTEMS - Coba Systems | — | — | 0 |
| AS396871US | ECKOH-INC - ECKOH INC. | — | — | 0 |
| AS396880US | ORL01-PEOPLESHOST - Complete Digital Solutions, LLC. | — | — | 0 |
| AS396942US | KDOH-ASN - Kings Daughters Medical Center | — | — | 0 |
| AS397014US | FARMERS-AND-MERCHANTS-BANK - Farmers and Merchants Bank of Long Beach | — | — | 0 |
| AS397052US | PACIFIC-WAVE-WESTERN-REGION-NETWORK - Pacific Wave | — | — | 0 |
| AS397135US | NNMC-ASN-1 - Northern New Mexico College | — | — | 0 |
| AS397145US | RANGELEY - Rangeley Internet Company, LLC | — | — | 0 |
| AS397152US | MEI-ASN-01 - Methode Electronics, Inc. | — | — | 0 |
| AS397194US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397195US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397236US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397317US | PINDROP-SECURITY-CARRIER - Pindrop Security, Inc. | — | — | 0 |
| AS397328US | AS-BIINC - BI Incorporated | — | — | 0 |
| AS397557US | ARCTERA - Arctera US LLC | — | — | 0 |
| AS397580US | MGS-EXIT-HUB - MIC GLOBAL SERVICES, LLC | — | — | 0 |
| AS397662US | 903-BROADBAND - 360 Broadband, LLC | — | — | 0 |
| AS397682US | HII-TSD-DR-ASN - HII Technical Solutions Corporation | — | — | 0 |
| AS397704US | FWCCL - Jimmy Swaggart Ministries | — | — | 0 |
| AS397707US | GUARDIAN - Sudo Security Group, Inc. | — | — | 0 |
| AS397777US | TORANI-AS - Torani | — | — | 0 |