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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 | 3,135 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,289 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,267 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,731 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,972 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| — |
| — |
| 0 |
| AS10477US | CEPHAS - Cephas Multimedia, Inc. | — | — | 0 |
| AS10485US | UW-STOUT - University of Wisconsin - Stout | — | — | 0 |
| AS10509US | IEWAY - Internet Expressway | — | — | 0 |
| AS10514US | SPLITROCK - Splitrock Services Inc. | — | — | 0 |
| AS10536US | INDIVIDUAL - Individual, Inc. | — | — | 0 |
| AS10537US | CTI-AS-1 - CTI Networks Inc. | — | — | 0 |
| AS10547US | FIREASN - Firebird Management LLC | — | — | 0 |
| AS10572US | RESROCKET - Res Rocket Surfer, Inc | — | — | 0 |
| AS10604US | KINKO - Kinkos, Inc. | — | — | 0 |
| AS10612US | TUDOR-ASN - Tudor, Pickering, Holt & Co. Securities, Inc. | — | — | 0 |
| AS10623US | ANNAPOLIS-INTERNET - ANNAPOLIS INTERNET INC. | — | — | 0 |
| AS10644US | ALLIEDSIGNAL-AA - AlliedSignal Automotive Aftermarket | — | — | 0 |
| AS10771US | SBIS-ASN-BLK-2 - AT&T Enterprises, LLC | — | — | 0 |
| AS10815US | TURNKEY-INTERNET - Turnkey Internet Inc. | — | — | 0 |
| AS10874US | SUNSET-DIRECT - Sunset Direct | — | — | 0 |
| AS10883US | LIFEPOINT - Labtest.com, Inc | — | — | 0 |
| AS11034US | INTELEPEER-US - IntelePeer, Inc. | — | — | 0 |
| AS11113US | XO-AS11113 - Verizon Business | — | — | 0 |
| AS11122US | CACI-NET - CACI INC | — | — | 0 |
| AS11220US | COGENT-11220 - Cogent Communications, LLC | — | — | 0 |
| AS11224US | SIR - Schaeffer's Investment Research | — | — | 0 |
| AS11299US | DIALISDN - Dial ISDN, Inc | — | — | 0 |
| AS11308US | APTIV-NET - APTIV SERVICES US, LLC | — | — | 0 |
| AS11366US | DWARVEN-HOLDINGS - Dwarven Holdings, LLC | — | — | 0 |
| AS11376US | CHOICE-BGP - Choice Logistics, Inc. | — | — | 0 |
| AS11385US | LUNA-CDN - Luna USA, LLC | — | — | 0 |
| AS11416US | GLWAS - Great Lakes Wine & Spirits | — | — | 0 |
| AS11469US | ZONECLOUD - ZoneCloud Network LLC | — | — | 0 |
| AS11473US | WATCH-WCOIL - Watch Communications | — | — | 0 |
| AS11505US | TUPNET - Party Products LLC | — | — | 0 |
| AS11530US | CENTURYLINK-LEGACY-EMBARQ-MNFD - CenturyLink Communications, LLC | — | — | 0 |
| AS11531US | BITNEST - Bitnest Tech LLC | — | — | 0 |
| AS11557US | CROWNCASTLE-AS11557 - Crown Castle Fiber LLC | — | — | 0 |
| AS11567US | GANNETT3-NET - Gannett Co. Inc. | — | — | 0 |
| AS11578US | GANNETT2-NET - Gannett Co. Inc. | — | — | 0 |
| AS11593US | AS11593 - AKRS | — | — | 0 |
| AS11780US | BASIN-NETWORKING - Basin Networking | — | — | 0 |
| AS11788US | BAJAU-CO-NM-TX - TDS TELECOM | — | — | 0 |
| AS11914US | HUMONGOUS - Humongous Entertainment | — | — | 0 |
| AS12098US | MUFG BANK LTD - MUFG Bank Ltd. | — | — | 0 |
| AS12107US | DEALER-COM - Dealer Dot Com Inc. | — | — | 0 |
| AS12116US | FHLB - Federal Home Loan Bank of Dallas | — | — | 0 |
| AS12260US | KCA-NET - Kramer, Ceilley and Associates | — | — | 0 |
| AS12469US | INFONET-NETHERLAND GTT Communications Inc. | — | — | 0 |
| AS13350US | DIGITALREALTY-IT-02 - Digital Realty Trust, L.P. | — | — | 0 |
| AS13383US | PHYLAXIS-NET - Phylaxis, Inc. | — | — | 0 |