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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,173 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,245 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,707 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,420 |
| — |
| — |
| 0 |
| AS10427US | RAMS-FIE-AS - Federal Information Exchange | — | — | 0 |
| AS10431US | SONORANSERVERS - Sonoran Software Systems LLC | — | — | 0 |
| AS10453US | CNIWEB - CREATIVE NETWORK INNOVATIONS, INC. | — | — | 0 |
| AS10478US | PTINETCORP - PTI Communications | — | — | 0 |
| AS10483US | AKPERMFUND - Alaska Permanent Fund | — | — | 0 |
| AS10488US | TFM-ASN - TFM Associates LLC | — | — | 0 |
| AS10507US | SPCS - Sprint Personal Communications Systems | — | — | 0 |
| AS10549US | EMINET - The EmiNet Domain | — | — | 0 |
| AS10559US | WEBSTREETSECURITIES - Web Street Securities, Inc. | — | — | 0 |
| AS10636US | CG-FS-AS1 - Cap Gemini America, Inc. | — | — | 0 |
| AS10675US | VIET-MY - Viet-My | — | — | 0 |
| AS10705US | NU01-WS-NC - NetUnlimited Inc. | — | — | 0 |
| AS10740US | OWO-AS - Origin Systems, INC. | — | — | 0 |
| AS10765US | CLOUDNET-AS - CloudNet | — | — | 0 |
| AS10774US | SBIS-ASN-BLK-2 - AT&T Enterprises, LLC | — | — | 0 |
| AS10789US | BIGNET-AS - The Bignet | — | — | 0 |
| AS10822US | UNISTAR - Unistar Entertainment, Inc | — | — | 0 |
| AS10831US | CENTURYLINK-QC-MOE-PORTLAND - CenturyLink Communications, LLC | — | — | 0 |
| AS10887US | BPSI-AS - BPSI Internet Services | — | — | 0 |
| AS10901US | TERABIT - TERABIT.NET | — | — | 0 |
| AS10948US | INTERNET - Voya Investment Management LLC | — | — | 0 |
| AS10994US | TWC-10994-NA - Charter Communications Inc | — | — | 0 |
| AS11108US | WELOCALIZE - Welocalize, Inc. | — | — | 0 |
| AS11129US | BCMONE-CN - BCM One, Inc. | — | — | 0 |
| AS11141US | MORGAN-ASN-EV-4 - Morgan Stanley | — | — | 0 |
| AS11148US | VRIS-11145-11149 - Verizon Business | — | — | 0 |
| AS11266US | SMUGMUG - SmugMug, Inc. | — | — | 0 |
| AS11329US | ASN-USI - AT&T Corp. - ITS | — | — | 0 |
| AS11344US | YOUTUBE - YouTube, LLC | — | — | 0 |
| AS11349US | WINDSTREAM - Windstream Communications LLC | — | — | 0 |
| AS11368US | GOLDENSTATEIX - San Francisco Metropolitan Internet Exchange (SFMIX) | — | — | 0 |
| AS11484US | NET-LINK - CoreComm Internet Services Inc | — | — | 0 |
| AS11518US | ROBBINSMORTON - Robins & Morton, L.L.C. | — | — | 0 |
| AS11675US | MCPS-MECKLENBURG-COUNTY-PUBLIC-SCHOOLS - Mecklenburg County Public Schools | — | — | 0 |
| AS11701US | ASN-PATHAI - PathAI, Inc. | — | — | 0 |
| AS11779US | MORRI-30-11779 - Optimum Online | — | — | 0 |
| AS11818US | BHN-11818-NA - Charter Communications, Inc | — | — | 0 |
| AS11843US | AFN-01 - Auravox, LLC | — | — | 0 |
| AS11846US | BROADVIEWNET - Windstream Communications LLC | — | — | 0 |
| AS11853US | ASN-INTERNAP-BLK - Unitas Global | — | — | 0 |
| AS11880US | TICKE-19-ASN - Tickets.com, Inc. | — | — | 0 |
| AS11968US | LEXISNEXIS-RISK-ASSETS - ChoicePoint, Inc. | — | — | 0 |
| AS12014US | AMERICAS-HEALTH-INSURANCE-PLANS - AHIP | — | — | 0 |
| AS12040US | INTELEPEER-US - IntelePeer, Inc. | — | — | 0 |
| AS12063US | SMMJ-01 - Stuart, Maue, Mitchell & James, Ltd. | — | — | 0 |
| AS12080US | ARA-AS-2 - Allison Royce & Associates, Inc. | — | — | 0 |