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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,160 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 3,669 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,372 |
| DATAXPORT-ELP - DataXport.Net, LLC |
| 256 |
| — |
| 1 |
| AS396274US | SVGKC1 - Spring Venture Group LLC | 256 | — | 1 |
| AS400657US | DACOMM - DACOMM Inc. | 256 | — | 1 |
| AS394884US | FAMOUS-SMOKE-AS - Famous Smoke Shop | 256 | — | 1 |
| AS32551US | KOHLBERG - Kohlberg & Co., L.L.C. | 256 | — | 1 |
| AS14479US | OG-ASN-01 - The Oneida Group Inc. | 256 | — | 1 |
| AS13583US | AIP-AS13583 - Allstate Identity Protection | 256 | — | 1 |
| AS54068US | CGS-BGP - City of Greenville, SC | 256 | — | 1 |
| AS30074US | WIFIBER-NETWORK-01 - WiFiber Corp. | 256 | 65.5K | 2 |
| AS26436US | IMS-ASN - Inperium Management Services, Inc. | 256 | — | 1 |
| AS53505US | DRCFA - Huntington Place | 256 | — | 1 |
| AS395548US | HFCU-NET - Hughes Federal Credit Union | 256 | — | 1 |
| AS54443US | EP-ISD272 - Eden Prairie School District | 256 | — | 1 |
| AS18951US | 400-CAPITAL-MANAGEMENT - 400 Capital Management LLC | 256 | — | 1 |
| AS32643US | RDI - RESOURCE DATA, INC. | 256 | — | 1 |
| AS16554US | CLOUDSOURCE-01 - Cloud Source, Inc. | 256 | 1 | 2 |
| AS396131US | FERRE226-ARIN - Town of Hempstead | 256 | — | 1 |
| AS396090US | SEMINOLECOUNTY - Seminole County Government | 256 | — | 1 |
| AS33373US | FHLBB-5 - Federal Home Loan Bank of Boston | 256 | — | 1 |
| AS6500US | NEXUS-22-6500 - Nexusguard, Inc | 256 | — | 1 |
| AS40072US | TCSG - Technical College System of Georgia | 256 | — | 1 |
| AS19865US | ICARZ - Icarz, Inc | 256 | — | 1 |
| AS18748US | DAL-B2BVPN - Delta Air Lines | 256 | — | 1 |
| AS394768US | LTS-IL01 - Links Technology Solutions, Inc. | 256 | — | 1 |
| AS11347US | ORC-F2 - ORC | 256 | — | 1 |
| AS399406US | AS-BILL360 - Bill360, Inc. | 256 | — | 1 |
| AS402250US | BOLD-MUST-HED - Apogee Telecom Inc. | 256 | — | 1 |
| AS36270US | STERLING-TRADING-TECH-NY - STT Acquisition Intermediate Holdco, Inc. | 256 | — | 1 |
| AS26510US | FTCH-HQ-ASN - Fishbeck, Thompson, Carr & Huber, Inc. | 256 | — | 1 |
| AS398841US | AVERITT-IP-BLOCK - Averitt Express, INC | 256 | — | 1 |
| AS394619US | OANDA-2 - OANDA Corporation | 256 | — | 1 |
| AS395408US | SBLI-MA - SBLI | 256 | — | 1 |
| AS27177US | SIMPLEASN-SIMPLEHUMAN-US - SIMPLEHUMAN, LLC | 256 | — | 1 |
| AS19594US | SALEMHOSPITALASN - Salem Hospital | 256 | — | 1 |
| AS20344US | BILLERICAPS-MA-ASN - Billerica Public Schools | 256 | 1 | 2 |
| AS394503US | PSEUDONYM-NET - Pseudonym.mx LLC | 256 | 1 | 2 |
| AS206100US | ccr_ripe Circle Computer Resources Inc | 256 | — | 1 |
| AS36189US | NEILMEDAS - Neil Medical Group | 256 | — | 1 |
| AS54878US | BIC-NET-13579 - Backlund Investment Co. | 256 | — | 1 |
| AS18513US | MCSD-NET-01 - Muscogee County School District | 256 | — | 1 |
| AS26031US | MONMOUTH-COUNTY - Monmouth County | 256 | — | 1 |
| AS53970US | SELMED-1 - Select Medical Corporation | 256 | — | 1 |
| AS22470US | NBME - National Board of Medical Examiners | 256 | — | 1 |
| AS402500US | GCL-01 - Gecko | 256 | 256 | 2 |
| AS398832US | STRAYANET-01 - Strayanet LLC. | 256 | — | 1 |
| AS26007US | SWICKTECH - Swick Technologies, LLC | 256 | — | 1 |
| AS30056US | VUBIQUITY - Avail Media | 256 | — | 1 |