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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. | 210.9M | 20,988 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,222 |
| 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 | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,578 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,934 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.3M | 4,544 |
| 37.1K |
| — |
| 20 |
| AS19905US | SECURITYSERVICES - Vercara, LLC | 37.1K | 28 | 163 |
| AS25649US | AYERA-AS - AYERA TECHNOLOGIES, INC. | 37.1K | 65.5K | 25 |
| AS11608US | ATG-11608 - Accretive Networks | 37.1K | 1 | 44 |
| AS18632US | VOLCANO-VISION - Volcano Vision, Inc. | 36.9K | — | 77 |
| AS20248US | TAKE2 - Take 2 Hosting, Inc. | 36.9K | — | 5 |
| AS10348US | HTDC - High Technology Development Corporation | 36.9K | — | 2 |
| AS27066US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 36.9K | 8 | 116 |
| AS17161US | MMC - Marsh Inc. | 36.9K | — | 33 |
| AS20432US | NE-FIBER-01 - North East Fiber, LLC | 36.9K | 65.5K | 29 |
| AS36813US | HCC-IL - Hamilton County Communications, Inc | 36.9K | 66.6K | 26 |
| AS7078US | MONMOUTH - Monmouth Internet Corp | 36.9K | 65.5K | 4 |
| AS396253US | IBOSS-8-ASN - iboss,inc | 36.6K | 33 | 110 |
| AS26253US | SCINTERNET - South Central Communications, Inc. | 36.6K | 131.1K | 17 |
| AS27087US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 36.6K | — | 31 |
| AS22781US | STRTEC - Strong Technology, LLC. | 36.6K | 13.3K | 37 |
| AS33619US | AMD-MARKHAM - Advanced Micro Devices, Inc. | 36.6K | — | 96 |
| AS53667US | PONYNET - FranTech Solutions | 36.6K | 776.2K | 78 |
| AS16567US | NETRIX-16567 - Netrix LLC | 36.4K | 65.5K | 41 |
| AS397731US | ELITEWORK-01 - EliteWork LLC | 36.4K | — | 11 |
| AS11620US | SUCCEED-NET - Succeed.Net | 36.4K | — | 28 |
| AS36224US | HCLTA94085 - HCL AMERICA INC | 36.4K | 1 | 99 |
| AS393856US | WGELD-ASN - City of Westfield (Gas & Electric Light Department) | 36.4K | — | 40 |
| AS11790US | RANDOMHOUSE - Random House, Inc. | 36.1K | — | 18 |
| AS17223US | DATABANK-LATISYS - Latisys-Chicago, LLC | 36.1K | 65.5K | 32 |
| AS397142US | FORT-COLLINS-CONNEXION - City of Fort Collins | 36.1K | 67.6K | 23 |
| AS397836US | NORTHCENTRAL-MS-OB-01 - Northcentral Electric Cooperative | 36.1K | 65.5K | 45 |
| AS36001US | BERTRAM-COMMUNICATIONS-LLC - Bertram Communications LLC | 35.8K | 262.1K | 15 |
| AS26844US | PACTIV - Pactiv LLC | 35.8K | — | 6 |
| AS40749US | CDELIGHTBAND - CLARKSVILLE DEPARTMENT OF ELECTRICITY | 35.8K | — | 19 |
| AS32472US | LEXIS2-AS - RELX inc. | 35.8K | — | 10 |
| AS398704US | STACKSINC-BACKBONE - STACKS INC | 35.8K | 16.4K | 104 |
| AS14782US | THEROCKETSCIENCEGROUP - MailChimp | 35.8K | — | 64 |
| AS10557US | CNW - Connect Northwest Internet Services, LLC | 35.8K | — | 92 |
| AS26425US | EXELON-CORPORATION - Exelon Corporation | 35.8K | — | 28 |
| AS11179US | ARYAKA-ARIN - Aryaka Networks, Inc. | 35.6K | 3 | 142 |
| AS396001US | TACO-396001 - City of Tacoma | 35.6K | — | 10 |
| AS395092US | SHOCK-1 - Shock Hosting LLC | 35.6K | 69.7K | 95 |
| AS30383US | GENERAL-MOTORS-CORPORATION - General Motors LLC | 35.6K | 518 | 127 |
| AS326US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 35.3K | — | 35 |
| AS62887US | WHITESKY-COMMUNICATIONS - WhiteSky Communications, LLC. | 35.3K | 275 | 58 |
| AS31877US | ACCELECOM-GA - Accelecom | 35.3K | 131.1K | 38 |
| AS27512US | STATERI - State of Rhode Island | 35.3K | — | 3 |
| AS32723US | ARCHTOP-FIBER - Archtop Fiber | 35.3K | 65.6K | 57 |
| AS36007US | KAMATERA - Kamatera, Inc. | 35.3K | 19 | 154 |
| AS27176US | DATAWAGON - DataWagon LLC | 35.3K | 524.8K | 106 |
| AS4913US | NET-CPRK - Speedcast Communications, Inc | 35.1K | — | 62 |