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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
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 | 3,136 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.5M | 20,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | 73.1M | 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC |
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.
| 68.2M |
| 345 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 66.4M | 1,107 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 47.9M | 3,573 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,926 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.2M | 4,508 |
| 17 |
| 18 |
| AS11686US | ZAYO-ENA-11686 - Zayo Bandwidth | 961K | 66.8K | 256 |
| AS14340US | SALESFORCE - Salesforce.com, Inc. | 958.5K | 196.6K | 43 |
| AS11232US | MIDCO-NET - Midcontinent Communications | 937.5K | 2.3M | 98 |
| AS21859US | ZEN-ECN - Zenlayer Inc | 921.9K | 187.5K | 1,729 |
| AS158US | ERI-AS - Ericsson Inc. | 921.1K | 66.3K | 81 |
| AS20055US | AS-WHOLESAIL - Wholesail networks LLC | 916.2K | 18M | 61 |
| AS22616US | ZSCALER-SJC1 - ZSCALER, INC. | 906.2K | 9K | 529 |
| AS8103US | STATE-OF-FLA - Florida Department of Management Services - Division of Telecommunications | 896.5K | 22 | 826 |
| AS1906US | NORTHROP-GRUMMAN - Northrop Grumman | 875.3K | — | 75 |
| AS13977US | CTELCO - Fidium | 842.5K | 75.8K | 788 |
| AS33588US | BRESNAN-33588 - Charter Communications LLC | 842K | 594.2K | 52 |
| AS13649US | ASN-FLEXENTIAL - Flexential Colorado Corp. | 830K | 798.7K | 597 |
| AS36375US | UMICH-AS-5 - University of Michigan | 826.5K | 65.5K | 21 |
| AS46375US | AS-SONICTELECOM - Sonic Telecom LLC | 820.7K | 1.1M | 170 |
| AS33070US | RMH-14 - Rackspace Hosting | 805.9K | 65.5K | 105 |
| AS46606US | UNIFIEDLAYER-AS-1 - Unified Layer | 795.4K | — | 209 |
| AS231US | MISU-231 - Michigan State University | 789.5K | 65.5K | 9 |
| AS2572US | MORENET - University of Missouri - dba the Missouri Research and Education Network (MOREnet) | 788.5K | 90.1K | 48 |
| AS3136US | STATE-OF-WISCONSIN-AS1 - State of WI Dept. of Administration | 786.2K | 65.5K | 40 |
| AS243US | HARRIS-ATD-AS - L3Harris Technologies, Inc. | 780.3K | — | 133 |
| AS2687US | ATGS-MMD-AS - AT&T Enterprises, LLC | 776.2K | 65.5K | 175 |
| AS14593US | SPACEX-STARLINK - Space Exploration Technologies Corporation | 774.7K | 222.7K | 2,405 |
| AS14638US | LCPRL - Liberty Communications of Puerto Rico LLC | 774.7K | 274.6K | 619 |
| AS14265US | US-TELEPACIFIC - TPx Communications | 773.4K | 151.6K | 366 |
| AS703US | UUNET - Verizon Business | 715.8K | 1.2M | 53 |
| AS14962US | NCR-252 - NCR Voyix Corporation | 705.5K | — | 50 |
| AS23089US | HOTWIRE-COMMUNICATIONS - Hotwire Communications | 702.2K | 10.5K | 615 |
| AS3737US | AS-PTD - PenTeleData Inc. | 700.9K | 65.5K | 28 |
| AS18747US | IFX18747 - IFX Corporation | 689.7K | 466.9K | 529 |
| AS2379US | CENTURYLINK-LEGACY-EMBARQ-WNPK - CenturyLink Communications, LLC | 689.4K | — | 106 |
| AS8011US | MONGO-8011 - MongoDB, Inc. | 679.9K | — | 47 |
| AS31822US | CITY-UNIVERSITY-OF-NEW-YORK - City University of New York | 659.7K | — | 12 |
| AS40065US | CNSERVERS - CNSERVERS LLC | 657.7K | — | 551 |
| AS4193US | WA-STATE-GOV - State of Washington | 656.9K | 16.8M | 33 |
| AS3128US | BRUWS-AS3128 - University of Wisconsin System | 656.6K | 1M | 13 |
| AS395954US | LEASEWEB-USA-LAX - Leaseweb USA, Inc. | 640.8K | 65.5K | 190 |
| AS395139US | NYP-INTERNET - NewYork-Presbyterian Hospital | 640K | — | 29 |
| AS10361US | BLOOMBERG-NET - Bloomberg, LP | 622.6K | — | 122 |
| AS54113US | FASTLY - Fastly, Inc. | 619.9K | 188.8K | 1,738 |
| AS54600US | PEG-SV - PEG TECH INC | 613.1K | 1 | 391 |
| AS3598US | MICROSOFT-CORP-AS - Microsoft Corporation | 611.3K | 196.6K | 26 |
| AS10430US | WA-K20 - Washington State K-20 Telecommunications Network | 598.5K | 65.5K | 70 |
| AS14977US | STATE-OF-WYOMING-ASN - State of Wyoming Department A&I | 595.2K | 256 | 16 |
| AS2897US | GEORGIA-1 - Georgia Technology Authority | 591.1K | — | 7 |
| AS22463US | ADS-17-22463 - CDK Global, LLC | 590.3K | — | 10 |
| AS11320US | LIGHTEDGE-AS-02 - LightEdge Solutions | 579.3K | 950.3K | 132 |