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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,270 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,323 |
| 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.
32,193 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,009 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,230 |
| RRD - R.R. Donnelley and Sons, Co. |
| 6.4K |
| — |
| 24 |
| AS20101US | MICHWAVE - Michwave Technologies, Inc. | 6.4K | — | 10 |
| AS17195US | TAYLOR-CORPORATION - Taylor Corporation | 6.4K | — | 10 |
| AS18975US | STANCOEORG95354 - Stanislaus County Office of Education | 6.4K | — | 3 |
| AS396290US | NCL-203-396290 - Nielsen Consumer LLC | 6.4K | — | 18 |
| AS18785US | SANTELCOMMCOOP - Santel Communications Cooperative, Inc. | 6.4K | 65.5K | 13 |
| AS2011US | WELLSFARGO-2011 - Wells Fargo Bank, N.A. | 6.4K | 1 | 9 |
| AS20464US | HP-POLY - HP Inc. | 6.4K | 1 | 24 |
| AS40605US | AITL-US - ANYCONNECT INFORMATION TECHNOLOGY CO., LTD | 6.4K | 4.1K | 23 |
| AS33168US | INLANDIMAGING - INLAND IMAGING L.L.C. | 6.4K | — | 22 |
| AS7105US | DOWJONES-AS - Dow Jones & Company, Inc. | 6.4K | — | 24 |
| AS54536US | ADAMSSTATE - Adams State University | 6.4K | 1 | 4 |
| AS40910US | BAYLOR - Baylor Health Care System | 6.4K | — | 3 |
| AS30043US | RBAND-AS30043 - ResortInternet | 6.4K | — | 25 |
| AS395100US | RVBA2016 - Roanoke Valley Broadband Authority | 6.4K | 65.5K | 5 |
| AS23228US | AS1-CO-EL-PASO-TX - The County of El Paso | 6.4K | — | 10 |
| AS46528US | JRSIMP - J.R. Simplot Company | 6.4K | — | 22 |
| AS63201US | COEOSOLUTIONS - Coeo Solutions, LLC | 6.4K | — | 19 |
| AS29736US | DWS-ORL - Disney Worldwide Services, Inc. | 6.4K | — | 17 |
| AS19223US | NTEGRATED-SOLUTIONS - Ntegrated Solutions | 6.4K | — | 3 |
| AS27521US | CATCOMM-ASN - CATCOMM INTERNET SERVICES, LLC | 6.4K | — | 25 |
| AS32145US | OPENCAPE - OpenCape Corporation | 6.4K | — | 8 |
| AS636US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | 6.4K | — | 4 |
| AS32634US | FULL-SERVICE-NETWORK - FULL SERVICE NETWORK LP | 6.4K | — | 3 |
| AS29987US | SINFONY6 - Sinfony6, LLC | 6.4K | — | 22 |
| AS395246US | LEGACYISP1 - Legacy ISP, LLC | 6.4K | — | 19 |
| AS40181US | ELITESYSTEMS - Elite Systems, LLC | 6.4K | — | 12 |
| AS396107US | 3CI-CRYSTAL-BEACH - Southern Broadband, LLC | 6.4K | — | 14 |
| AS397363US | AMS-PUBLIC - HEWLETT PACKARD ENTERPRISE COMPANY | 6.4K | — | 11 |
| AS40232US | MIDSTATES-WIRELESS - Mid-States Services, LLC. | 6.4K | 65.5K | 19 |
| AS62707US | GLEXIA-AS - Glexia, Inc. | 6.4K | 65.5K | 26 |
| AS14413US | LINKEDIN - LinkedIn Corporation | 6.4K | 18 | 43 |
| AS13341US | TRANQUILITY - Tranquility Internet Services Inc. | 6.4K | — | 5 |
| AS1009US | GOV-ISP-PAFB - Air Force Technical Applications Center | 6.4K | — | 6 |
| AS21832US | KELLINCOM-1 - Kellin Communications | 6.4K | — | 25 |
| AS21534US | AS21534 - BroadSoft, Inc. | 6.4K | 8 | 33 |
| AS30371US | AS-GTT-30371 - GTT Americas, LLC | 6.4K | 4 | 8 |
| AS26938US | COMPUSOURCE - CompuSOURCE Communications Corp. | 6.4K | — | 4 |
| AS40165US | VCS - Voxology Carrier Services, Inc. | 6.4K | 65.5K | 26 |
| AS19236US | STEELCASEINET - Steelcase, Inc. | 6.7K | — | 11 |
| AS21725US | RITTERNET-MIL - Ritter Communications | 6.7K | — | 4 |
| AS19400US | SPX-FLOW-AS - SPX Flow Inc. | 6.7K | — | 12 |
| AS40703US | WBD-AS40703 - Turner Broadcasting System, Inc. | 6.7K | — | 11 |
| AS54934US | JC-39-AS - JEFFERSON CO. CABLE, INC. | 6.7K | 1 | 14 |
| AS18885US | M2NGAGE2 - M2ngage Telecommunications II Corp. | 6.7K | — | 9 |
| AS54806US | LRMCOM1 - Lrm-Com, Inc. | 6.7K | — | 18 |
| AS23277US | SMART-CITY-SDCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 6.7K | 16 | 4 |