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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 | 24,632 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,210 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 256 |
| — |
| 1 |
| AS18824US | PCCA-HQ - Plains Cotton Cooperative Association | 256 | — | 1 |
| AS398160US | PUBLIC-BGP-01 - CompX Security Products, Inc. | 256 | — | 1 |
| AS396469US | NUWAVE-TECHNOLOGY-INC - Nuwave Technology Inc | 256 | — | 1 |
| AS397764US | REPLIMUNE-US - Replimune Inc | 256 | — | 1 |
| AS53551US | PCS-666 - Precision Computer Services | 256 | — | 1 |
| AS3408US | AMC-NETWORKS - Rainbow Media Holdings LLC | 256 | — | 1 |
| AS27622US | RSA-AL - Retirement Systems of Alabama | 256 | — | 1 |
| AS26440US | SPRAGUE-ENERGY - Sprague Operating Resources LLC | 256 | — | 1 |
| AS395484US | PETCO-NSC - Petco | 256 | — | 1 |
| AS35991US | PAULSON-CO - Paulson & CO. INC. | 256 | — | 1 |
| AS398062US | SPTA-1-AS-1 - Southeastern Pennsylvania Transportation Authority | 256 | — | 1 |
| AS400855US | AVD-PRINCETON - Advantage Voice & Data, LLC | 256 | — | 1 |
| AS402522US | TAL-ASN - TACKLE | 256 | — | 1 |
| AS33032US | AMI - American Megatrends, Inc. | 256 | — | 1 |
| AS1380US | MCVEAN - McVEAN Trading & Investments, LLC | 256 | — | 1 |
| AS395186US | POP - POP | 256 | — | 1 |
| AS400661US | WIA-ORIG-01 - Western Iowa Wireless Inc | 256 | — | 1 |
| AS23153US | KENNAMETAL - Kennametal Inc. | 256 | — | 1 |
| AS399866US | COBASO-NET - Cobaso, LLC. | 256 | — | 1 |
| AS401245US | GOSHEN-HEALTH - GOSHEN HEALTH | 256 | — | 1 |
| AS400923US | ENC-DAL - Encore Group (USA) LLC | 256 | — | 1 |
| AS397723US | LAST-MILE-NETWORKS - Last Mile Networks LLC | 256 | 65.5K | 2 |
| AS33249US | ZNT-AS-01 - Zurita Network Technologies LLC | 256 | — | 1 |
| AS400140US | NTTDATA-TAG-LNK - Transaction Applications Group, Inc. | 256 | — | 1 |
| AS400563US | AS-MVPS621-01 - Mounds View Public Schools | 256 | 256 | 2 |
| AS395278US | SERTASIMMONSBEDDING - Serta Simmons Bedding, LLC | 256 | — | 1 |
| AS62677US | WFASN - William Floyd Union Free School District | 256 | — | 1 |
| AS23880US | Yahoo-AEA - Internet content provider | 256 | 1 | 2 |
| AS30171US | NASCAR-TRACK-ASN - NASCAR Holdings, LLC | 256 | — | 1 |
| AS54894US | SRA-NY-9W57 - Summit Rock Advisors, LLC | 256 | — | 1 |
| AS40636US | PLEXUSSYSTEMS-US1 - ROCKWELL AUTOMATION Inc. | 256 | — | 1 |
| AS12036US | POE - Poe Foundation | 256 | 256 | 2 |
| AS11768US | GRYPHO5-02 - Grypho5, LLC | 256 | — | 1 |
| AS13575US | WISCONSINPUBLICPOWER - Wisconsin Public Power, Inc. | 256 | — | 1 |
| AS402433US | HG-ITS-AS2 - Hourglass | 256 | — | 1 |
| AS36846US | HQ-INET-TW-ATT - The Health Care Authority for Baptist Health, An Affiliate of UAB Health System | 256 | — | 1 |
| AS14132US | BLUEMATRIX-AS-BLUEMATRIX-INC - Blue Matrix I LLC | 256 | — | 1 |
| AS54599US | COMMUNITYAMERICA - CommunityAmerica Credit Union | 256 | — | 1 |
| AS400131US | QCRH-AS - QCR Holdings, Inc. | 256 | — | 1 |
| AS26154US | VOIP-MINUTES-EXCHANGE - VOIP ME | 256 | — | 1 |
| AS401754US | HAMKING - Double Dog Adventures, LLC | 256 | 256 | 2 |
| AS214691US | CubeData Timothy McDaniel | 256 | — | 1 |
| AS400319US | COMPLETEBANKDATA - CompleteBankData.com | 256 | — | 1 |
| AS401051US | MEDPACE-NA1 - Medpace, Inc. | 256 | — | 1 |
| AS393745US | WI-TRONIX-AS1 - Wi-Tronix LLC | 256 | — | 1 |
| AS30299US | THE-MARTIN-AGENCY-HQ - THE MARTIN AGENCY | 256 | — | 1 |