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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| 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.
32,247 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| — |
| — |
| 0 |
| AS11735US | ITRON-OAKLAND-HOSTING - ITRON INC. | — | — | 0 |
| AS11882US | WELLCARE-INET1-AS - Centene Corporation | — | — | 0 |
| AS12112US | HICKORYTECH - Fidium | — | — | 0 |
| AS12141US | EPOCHWIDE-01 - Epoch Systems, Inc. | — | — | 0 |
| AS12151US | LEARNING-TREE-INTL-OPERATIONS - Learning Tree International, Inc. | — | — | 0 |
| AS12262US | TWC-12262-NA - Charter Communications Inc | — | — | 0 |
| AS12280US | SIERRA-PACIFIC-INDUSTRIES-SL - Sierra Pacific Industries | — | — | 0 |
| AS12411US | LLNW-GCC Uplynk, Inc | — | — | 0 |
| AS13084US | Yahoo Inc. | — | — | 0 |
| AS13330US | TECHNOLOGY-CENTER-SNA - Corelogic Solutions, LLC | — | — | 0 |
| AS13397US | ITLNET - ITLNet | — | — | 0 |
| AS13493US | ASN-CXA-RI-13493-CBS - Cox Communications Inc. | — | — | 0 |
| AS13578US | MDASSOCIATES-MAIN - MDAssociates, Inc. | — | — | 0 |
| AS13594US | INCOMM-NET5 - InComm | — | — | 0 |
| AS13603US | LL-ICN-AS - Western Iowa Tech Community College | — | — | 0 |
| AS13647US | NETACTUATE - NetActuate, Inc | — | — | 0 |
| AS13648US | VIRGINIA-LOTTERY - Virginia State Lottery Department | — | — | 0 |
| AS13775US | FORTINET-13775 - Fortinet Inc. | — | — | 0 |
| AS13885US | DUNDEE - Dundee Internet Services, Inc | — | — | 0 |
| AS13947US | SITESTAR-13947 - Enterprise Diversified, Inc | — | — | 0 |
| AS13982US | NIBWAN01 - National Industries for the Blind | — | — | 0 |
| AS14146US | LEVENGER - Levenger | — | — | 0 |
| AS14182US | EDATA - LexisNexis Risk Data Management Inc. | — | — | 0 |
| AS14189US | WITT-KIEFFER - Witt-Kieffer | — | — | 0 |
| AS14266US | IPAG - Imerys Pigments | — | — | 0 |
| AS14271US | AZURE-MICROSOFT-PEERING - Proconex, Inc. | — | — | 0 |
| AS14309US | G2ANET - Go2America LLC | — | — | 0 |
| AS14359US | IDEAL TECHNOLOGY - Windstream Communications LLC | — | — | 0 |
| AS14367US | TDS-TELECOM-AS - TDS TELECOM | — | — | 0 |
| AS14396US | IVANET-BURLINGTON - IBASIS INC. | — | — | 0 |
| AS14563US | DATAGRAM-PACIFIC - Internap Holding LLC | — | — | 0 |
| AS14577US | AS-TBWACDLA - TBWA Chiat Day | — | — | 0 |
| AS14644US | HPCITY-02 - City of High Point | — | — | 0 |
| AS14668US | COMCAST-TELECOMM-6 - Comcast Cable Communications, LLC | — | — | 0 |
| AS14783US | NUANCE-BURLINGTON - Microsoft Corporation | — | — | 0 |
| AS14788US | HAVAS-HEALTH-NYC - Havas Health, Inc. | — | — | 0 |
| AS14831US | CAMERON-COUNTY-TX - Cameron County | — | — | 0 |
| AS14833US | AS-SD-ACCURATE-PUB-WEB - ACCURATE BACKGROUND LLC | — | — | 0 |
| AS14855US | AOL-MTC1 - Yahoo Holdings Inc. | — | — | 0 |
| AS14961US | HYUNDAI-INFORMATION-SERVICE-NORTH-AMERICA - Kia America, Inc. | — | — | 0 |
| AS15010US | IT-DIMENSIONS - IT Dimensions, Inc. | — | — | 0 |
| AS15138US | MOTOROLA-MOBILITY - Motorola Inc | — | — | 0 |
| AS15222US | GRACE-CLOUD-NET - Grace International Inc. | — | — | 0 |
| AS15257US | NBT-LABS - NBT Labs, LLC | — | — | 0 |
| AS15279US | PHHMORT-AS - PHH Mortgage Corporation | — | — | 0 |
| AS15341US | ALLEGHENYINTEL - Breezeline | — | — | 0 |