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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. | 211.2M | 21,174 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,940 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,379 |
| 1.5K |
| — |
| 3 |
| AS54695US | PROGENT-ASN-1 - Progent, Corp. | 1.5K | — | 5 |
| AS46121US | FTMS-01 - Florida Technology Managed Services, Inc. | 1.5K | — | 6 |
| AS54725US | MCKINSEY-US-AAP - McKinsey & Company, Inc. | 1.5K | — | 6 |
| AS396961US | INTERNET2-OSG - Internet2 | 1.5K | 6 | 12 |
| AS398453US | INCOMM-NET3 - InComm | 1.5K | — | 3 |
| AS18742US | ON24-SAC - ON24, Inc. | 1.5K | — | 3 |
| AS21856US | NOKIA-ASN - Nokia of America Corporation | 1.5K | 32 | 7 |
| AS53698US | NINJA-IX-TRANSIT-CONNECTION - Ninja-IX Corporation | 1.5K | 30 | 21 |
| AS26679US | HELIACAL - Heliacal Networks | 1.5K | 18 | 6 |
| AS26995US | TELENETWORK - TeleNetwork | 1.5K | — | 4 |
| AS400132US | RTU-ASN - Reinbeck Telecommunications Utility | 1.5K | — | 4 |
| AS18816US | ANDREWCORP-AOP - CommScope Technologies LLC | 1.5K | — | 6 |
| AS55270US | QIPMIA1 - Quik, LLC | 1.5K | 4.1K | 6 |
| AS33476US | AS33476-TRADE-12 - SS&C Technologies, Inc. | 1.5K | — | 5 |
| AS400528US | PELLA-FIBER - City of Pella | 1.5K | 65.5K | 3 |
| AS27307US | NABORS - Nabors Corporate Services, Inc. | 1.5K | — | 6 |
| AS399584US | LIBERTY-BROADBAND - Liberty Broadband LLC | 1.5K | 4.1K | 4 |
| AS6231US | SCANA - Dominion Virginia Power | 1.5K | — | 6 |
| AS33089US | XACCELNETWORKS - Xaccel Networks LLC | 1.5K | 65.5K | 7 |
| AS12153US | HBI-ASN1 - HBI Branded Apparel Enterprises, LLC | 1.5K | — | 6 |
| AS23023US | INTUITIVE - Intuitive Surgical, Inc. | 1.5K | — | 6 |
| AS21945US | HARLANDCLARKE-AS - Harland Clarke Corp. | 1.5K | — | 5 |
| AS397348US | UE-1 - University of Evansville | 1.5K | — | 6 |
| AS18447US | AFFINITY-INTER - Ntirety, Inc. | 1.5K | — | 6 |
| AS22904US | WSITS - Winning Strategies ITS | 1.5K | — | 5 |
| AS2030US | TBCASN2 - The Boeing Company | 1.5K | — | 3 |
| AS32622US | TWRS-PW - Towerstream I, Inc. | 1.5K | — | 2 |
| AS18733US | ZENIMAXMEDIA - ZeniMax Media Incorporated | 1.5K | — | 6 |
| AS31845US | ISI COMMUNICATIONS - ISI Communications | 1.5K | 65.5K | 3 |
| AS396181US | SOUTHERNLINC-PACKETDATA-ASN2 - SouthernLINC Wireless | 1.5K | — | 6 |
| AS399361US | ALCOA-CORP - Alcoa USA Corp. | 1.5K | — | 4 |
| AS1414US | ASN1 - GENUINE PARTS COMPANY | 1.5K | — | 4 |
| AS394002US | WONDERLINK-COMMUNICATIONS - Wonderlink Communications, LLC | 1.5K | — | 5 |
| AS62582US | MJMTELECOM - Accel Wireless | 1.5K | — | 3 |
| AS398998US | MAVERIX - Maverix LLC | 1.5K | 8.2K | 8 |
| AS23374US | FPUA - FPUAnet Communications | 1.5K | — | 2 |
| AS32506US | ENL-17-AS - Experior Networks LLC | 1.5K | — | 6 |
| AS401204US | RFIH-NET-06 - Retail Finance International Holdings, Inc. | 1.5K | — | 4 |
| AS400537US | AS-CHI-AURORA - Morningstar, Inc. | 1.5K | — | 4 |
| AS26524US | BUDCO - BUDCO | 1.5K | — | 5 |
| AS500US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 1.5K | — | 6 |
| AS23371US | CAEUS-AS - CAE USA, Inc | 1.5K | — | 6 |
| AS33414US | KENTCOUNTYMI - Kent County Information Systems | 1.5K | — | 3 |
| AS62630US | AS62630 - Husson University | 1.5K | — | 2 |
| AS40458US | CMIGNET - CMFG Life Insurance Company | 1.5K | — | 6 |
| AS20251US | SOLARWINDSAUSTIN - SolarWinds North America, Inc. | 1.5K | 5 | 11 |