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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 | 24,346 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 768 |
| 1.1K |
| 8 |
| AS1062US | EMMETT-FIBER - City of Emmett | 768 | — | 3 |
| AS395975US | DENTONCOAS-1 - Denton County, Texas | 768 | — | 3 |
| AS12012US | NOV-NET-02 - Novani, LLC | 768 | — | 3 |
| AS36506US | WA-ASN - Woodward Academy | 768 | — | 2 |
| AS63454US | SHM-AS-63454 - Summit Health Management, LLC | 768 | — | 3 |
| AS393852US | SOFI - Hollywood Park Management Co, LLC | 768 | — | 3 |
| AS26446US | AS-OSTRA - Ostra Cybersecurity, Inc. | 768 | — | 2 |
| AS64296US | ONRADINC - Onrad, Inc. | 768 | — | 2 |
| AS26160US | LCEC-BGPNET-YHWH - LCEC | 768 | — | 3 |
| AS27548US | USAN-AS-A - United States Advanced Network Inc. | 768 | — | 3 |
| AS396285US | CBTS-AS-FGA - Cincinnati Bell Technology Solutions | 768 | — | 3 |
| AS395823US | DOOF - doof.net | 768 | 4.1K | 6 |
| AS26976US | LIZ-CLAIBORNE-INC - Kate Spade Holdings LLC | 768 | — | 3 |
| AS54790US | SHARECARE - Sharecare, Inc. | 768 | — | 3 |
| AS398071US | ACSC1001 - Automobile Club of Southern California | 768 | — | 3 |
| AS36134US | POOLCORP - Pool Corporation | 768 | — | 3 |
| AS20176US | FNNI-AS20176 - First National Bank of Omaha | 768 | — | 3 |
| AS33499US | LHP-NET - AHS Management Company, Inc. | 768 | — | 3 |
| AS10494US | AAI - Rodney Grimes, Sole Proprietorship | 768 | 4.1K | 3 |
| AS13620US | EMBLEMHEALTH - EMBLEMHEALTH SERVICES COMPANY, LLC | 768 | — | 3 |
| AS397562US | UCOMTEL-01 - UComtel Inc | 768 | — | 3 |
| AS33636US | WOFFORD-COLLEGE - Wofford College | 768 | — | 3 |
| AS40892US | EFTSOURCE2008 - EFT Source, Inc. | 768 | — | 3 |
| AS30570US | AEPCO-30570 - Arizona Electric Power Cooperative, Inc. | 768 | — | 3 |
| AS393483US | YEO-YEO - Yeo & Yeo CPAs & Business Consultants | 768 | 1 | 4 |
| AS40177US | THE-INSTITUTES - The Institutes | 768 | — | 2 |
| AS17145US | TEAJAX - THE ENERGY AUTHORITY | 768 | — | 2 |
| AS7996US | VSCO - Victoria's Secret | 768 | — | 3 |
| AS218859US | ALLSYSNET IT HELP LCC | 768 | 65.5K | 3 |
| AS26151US | ARTHREXINC - Arthrex Inc. | 768 | — | 3 |
| AS26476US | CYBERU - CyberU, Inc. | 768 | — | 3 |
| AS14227US | BTX-01 - Brownsville Public Library System | 768 | — | 3 |
| AS26815US | LOWENS01 - Lowenstein Sandler | 768 | — | 3 |
| AS32231US | PATHWARD - Pathward, N.A. | 768 | — | 3 |
| AS29912US | CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation | 768 | — | 3 |
| AS14620US | ITALK - iTalk Global Communications, Inc. | 768 | — | 3 |
| AS54772US | KLEIN-ISD - Klein Independent School District | 768 | — | 3 |
| AS54686US | AS54686-CFBROADBAND - Central Florida Broadband | 768 | 256 | 3 |
| AS27253US | ASN1 - AMERICAN RESIDENTIAL SERVICES L.L.C. | 768 | — | 3 |
| AS17240US | CLASSMATES-1 - PeopleConnect, Inc. | 768 | — | 3 |
| AS400346US | APOG-ECKERD - Apogee Telecom Inc. | 768 | — | 2 |
| AS40124US | AS-CHARGED - QuickMeg Inc | 768 | — | 3 |
| AS23284US | COMPL-AS - Complete Genomics Inc. | 768 | — | 3 |
| AS18872US | VERITAS - Veritas Technologies LLC | 768 | 1 | 4 |
| AS395558US | GSCOMPUTING - Garden State Computing LLC | 768 | 65.5K | 4 |
| AS54153US | LACMTA-ASN - Los Angeles County Metropolitan Transportation Authority | 768 | — | 3 |