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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 | 21,254 |
| 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 | 3,726 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,965 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,346 |
| — |
| — |
| 0 |
| AS3900US | TEXASNET-ASN - SWITCH, LTD | — | — | 0 |
| AS3934US | NTTA-3934 - NTT America, Inc. | — | — | 0 |
| AS3943US | DMM - CISCO SYSTEMS, INC. | — | — | 0 |
| AS3950US | IXL-AS - Internet Exchange, Ltd. | — | — | 0 |
| AS4027US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS4034US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS4081US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4093US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4117US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4135US | ENVISIONET - ENVISIONET, Inc. | — | — | 0 |
| AS4149US | JPL-AS4149 - Jet Propulsion Laboratory | — | — | 0 |
| AS4153US | USDA-1 - USDA | — | — | 0 |
| AS4210US | YY - D. E. Shaw & Co. LP | — | — | 0 |
| AS4218US | DNIC-ASBLK-04214-04221 - United States Department of Defense (DoD) | — | — | 0 |
| AS4234US | CT-WCC - Workers Compensation Commission | — | — | 0 |
| AS4250US | ALENT-ASN-1 - Alentus Corporation | — | — | 0 |
| AS4271US | NETWORX - Networx | — | — | 0 |
| AS4298US | CENTURYLINK-IPADMIN-RESERVED - CenturyLink Communications, LLC | — | — | 0 |
| AS4299US | JSC-NET-ASN2 - Dod Joint Spectrum Center | — | — | 0 |
| AS4304US | YPN-NET - YPN, Inc. | — | — | 0 |
| AS4306US | NOVIA - Novia Corp | — | — | 0 |
| AS4323US | CENTURYLINK-LEGACY-TWTC - Level 3 Parent, LLC | — | — | 0 |
| AS4325US | DNIC-AS-04325 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS4327US | SNA-NET - Sacramento Network Access, Inc. | — | — | 0 |
| AS4347US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4395US | DSI-CUST-BLK2 - Houston Associates, Inc. | — | — | 0 |
| AS4396US | DSI-CUST-BLK2 - Houston Associates, Inc. | — | — | 0 |
| AS4400US | DSI-CUST-BLK2 - Houston Associates, Inc. | — | — | 0 |
| AS4447US | HOOKED-AS - Hooked Communications Inc. | — | — | 0 |
| AS4485US | EMTF-RAMDEN - Air Force Systems Networking | — | — | 0 |
| AS4520US | AQUA - Aquidneck Web, Inc. | — | — | 0 |
| AS4568US | WALLACE-NET - Wallace Computer Services, Inc. | — | — | 0 |
| AS4585US | NAVISOFT - Navisoft Inc. | — | — | 0 |
| AS4607US | NORAD-SPACE - Air Force Systems Networking | — | — | 0 |
| AS4968US | COVINGTON - Covington & Burling LLP | — | — | 0 |
| AS5012US | EMTF-AZO - Air Force Systems Networking | — | — | 0 |
| AS5020US | MEA - Mitsubishi Electronics | — | — | 0 |
| AS5035US | CYNET - WebNet | — | — | 0 |
| AS5077US | ASN-WSNET - WSNetwork Communications Services, Inc. | — | — | 0 |
| AS5113US | HGEA-AS - H.G.E.A | — | — | 0 |
| AS5122US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5160US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5188US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5192US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5234US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5249US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |