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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 | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| — |
| — |
| 0 |
| AS22967US | CIMATELECOM1 - Cima Telecom, Inc. | — | — | 0 |
| AS22956US | AST - American Stock Transfer & Trust Co. | — | — | 0 |
| AS22526US | ITC-ASN - ITC Holdings Corp | — | — | 0 |
| AS23365US | IFBYPHONE - Invoca, Inc. | — | — | 0 |
| AS11129US | BCMONE-CN - BCM One, Inc. | — | — | 0 |
| AS29740US | SSI-BGP4 - Schaefer Systems International, Inc. | — | — | 0 |
| AS27561US | BRONGUS - Brongus | — | — | 0 |
| AS27642US | THEDOCTORSCOMPANY - The Doctors Company | — | — | 0 |
| AS26530US | SIRUS-AS1 - Sirus, Inc | — | — | 0 |
| AS27266US | SN-155 - Supernova Networks, INC | — | — | 0 |
| AS26910US | GOOGLE-CLOUD-2 - Google LLC | — | — | 0 |
| AS22144US | CHAPMAN - Chapman and Cutler | — | — | 0 |
| AS18921US | ASHERECHICAGOEQUINIXCH3 - HERE North America LLC | — | — | 0 |
| AS18879US | HR1 - HireRight LLC | — | — | 0 |
| AS18737US | VISANET-3 - VISA INTERNATIONAL SERVICE ASSOCIATION | — | — | 0 |
| AS18823US | MEDICALERT - Medicalert Foundation | — | — | 0 |
| AS21991US | BASED-NETWORKING - BNS Services LLC | — | — | 0 |
| AS17284US | VONAGE-17284 - Vonage Holdings, Inc. | — | — | 0 |
| AS13669US | VRIS-AS-BLOCK - Verizon Business | — | — | 0 |
| AS396784US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS13488US | 365DC-1 - BroadbandONE, LLC | — | — | 0 |
| AS13455US | ASGROUP1 - Reach Marketing LLC | — | — | 0 |
| AS13411US | W3D - W3D Trading Inc | — | — | 0 |
| AS13436US | INTERNET2-CONF - Internet2 | — | — | 0 |
| AS12014US | AMERICAS-HEALTH-INSURANCE-PLANS - AHIP | — | — | 0 |
| AS11968US | LEXISNEXIS-RISK-ASSETS - ChoicePoint, Inc. | — | — | 0 |
| AS11843US | AFN-01 - Auravox, LLC | — | — | 0 |
| AS12080US | ARA-AS-2 - Allison Royce & Associates, Inc. | — | — | 0 |
| AS15163US | MTD - MTD Products, Inc | — | — | 0 |
| AS15089US | MASSMUTUAL - Massachusetts Mutual Life Insurance Company | — | — | 0 |
| AS14824US | ZYNGA-01 - TAKE-TWO INTERACTIVE SOFTWARE, INC. | — | — | 0 |
| AS14897US | PKS-INVESTMENTS - Purshe Kaplan Sterling Investments, Inc. | — | — | 0 |
| AS200360US | FOLF-SYSTEMS-AS Cooper Greer | — | 23 | 5 |
| AS14542US | CALPOP - CALPOP.COM, INC. | — | — | 0 |
| AS14053US | ASN-LWCL - Long Wharf Real Estate Partners LLC | — | — | 0 |
| AS11675US | MCPS-MECKLENBURG-COUNTY-PUBLIC-SCHOOLS - Mecklenburg County Public Schools | — | — | 0 |
| AS10374US | WELLSFARGO-10372-10376 - Wells Fargo Bank, N.A. | — | — | 0 |
| AS10363US | LEESTL-ASN-10363 - Lee Enterprises, Incorporated | — | — | 0 |
| AS10241US | OCI - Options & Choices, Inc. | — | — | 0 |
| AS10291US | LABSHUB-NETWORKING - Amazon.com, Inc. | — | — | 0 |
| AS11368US | GOLDENSTATEIX - San Francisco Metropolitan Internet Exchange (SFMIX) | — | — | 0 |
| AS7966US | HARBOR - Harbor Communications | — | — | 0 |
| AS7739US | AUTOWEB - AutoWeb Interactive | — | — | 0 |
| AS8136US | IFSI - Internet Financial Systems Inc. | — | — | 0 |
| AS11349US | WINDSTREAM - Windstream Communications LLC | — | — | 0 |
| AS11344US | YOUTUBE - YouTube, LLC | — | — | 0 |