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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. | 211.3M | 21,277 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 | 3,722 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,955 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,298 |
| — |
| — |
| 0 |
| AS1977US | DNIC-AS-01977 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS2008US | INFONET4 - INFONET Services Corporation | — | — | 0 |
| AS2555US | INTER-GRP-B - Cogent Communications, LLC | — | — | 0 |
| AS2584US | CUMMINS - Cummins Inc. | — | — | 0 |
| AS2628US | DNIC-AS-02628 - United States Department of Defense (DoD) | — | — | 0 |
| AS2693US | ATGS-MMD-AS - AT&T Enterprises, LLC | — | — | 0 |
| AS2913US | CITI6 - Citigroup Inc. | — | — | 0 |
| AS2940US | NET-UEN-UTAH - Utah Education Network | — | — | 0 |
| AS2950US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2955US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2971US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2980US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3003US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3007US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3014US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3018US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3029US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3052US | RICE-AS3052 - Rice University | — | — | 0 |
| AS3125US | MAGIC-INTRNL - General Magic, Inc. | — | — | 0 |
| AS3419US | DNIC-AS-03419 - United States Department of Defense (DoD) | — | — | 0 |
| AS3447US | CENTURYLINK-LEGACY-EMBARQ-CMDS - CenturyLink Communications, LLC | — | — | 0 |
| AS3493US | INTERLINK - Verizon Business | — | — | 0 |
| AS3542US | DNIC-AS-03542 - United States Department of Defense (DoD) | — | — | 0 |
| AS3616US | IP-NET-AS - Internet Presence & Publishing | — | — | 0 |
| AS3669US | IQUEST - Small Systems Specialists | — | — | 0 |
| AS3674US | RCN-AS6 - RCN | — | — | 0 |
| AS3698US | RJRNI-INTL1 - Nabisco Foods Group | — | — | 0 |
| AS3798US | LAW-SERVICES - Law School Admission Council, Inc. | — | — | 0 |
| AS3844US | NTTA-3844 - NTT America, Inc. | — | — | 0 |
| AS3867US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3871US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3874US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3879US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3883US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3895US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3978US | UTELFLA - Sprint/United Telephone-Florida | — | — | 0 |
| AS3989US | UTELFLA - Sprint/United Telephone-Florida | — | — | 0 |
| AS3998US | CITY-NET - CityNet, Inc. | — | — | 0 |
| AS4000US | COGENT-4000 - Cogent Communications, LLC | — | — | 0 |
| AS4019US | IIE-AS - Institute of International Education | — | — | 0 |
| AS4045US | AS-WINTERNET - StarNet Communications, Inc. | — | — | 0 |
| AS4050US | OMNINET-PRI-AS - OMNINET COMMUNICATIONS | — | — | 0 |
| AS4066US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4072US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4090US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4097US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |