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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 | 21,026 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,220 |
| 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 | 3,585 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,933 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,534 |
| 4.1K |
| — |
| 1 |
| AS27403US | APA-CTY - Apache County Board of Supervisors | 4.1K | — | 1 |
| AS209622US | upress-drb uPress Inc | 4.1K | 6 | 21 |
| AS13830US | NEXRIL - PureVoltage Hosting Inc. | 4.1K | 12.3K | 8 |
| AS46780US | SJUCSB-AS - Saint John's University - College of Saint Benedict | 4.1K | — | 1 |
| AS22316US | COTCCONNECTIONS - COTC Connections | 4.1K | — | 1 |
| AS54979US | ZEECON - Zeecon Wireless Internet L.L.C. | 4.1K | — | 1 |
| AS399833US | ROCKYRIDGE-NET - Rocky Ridge Wireless | 4.1K | — | 6 |
| AS11015US | TCH-AS - Texas Children's Hospital | 4.1K | — | 6 |
| AS20228US | NTUA - Navajo Tribal Utility Authority | 4.1K | 65.5K | 4 |
| AS396926US | CSPIRE-MISSION-01 - C Spire Fiber | 4.1K | — | 1 |
| AS11833US | AS11833-LEAPFROG-INTERACTIVE - LEAP Agency LLC | 4.1K | — | 10 |
| AS19555US | KMI-NETWORK - Kinder Morgan, Inc. | 4.1K | — | 1 |
| AS400205US | INFONETWORKS - InfoNet | 4.1K | — | 7 |
| AS18826US | AS18826 - 1966 | 4.1K | — | 1 |
| AS46452US | AS1 - Texas CellNet, Inc. | 4.1K | — | 16 |
| AS54539US | CISD - Calhoun ISD | 4.1K | — | 3 |
| AS30268US | CHASKANET - CITY OF CHASKA CHASKANET | 4.1K | — | 1 |
| AS32694US | HBCOMM - H&B Communications Inc. | 4.1K | — | 15 |
| AS23442US | DESG-WEST - Deluxe Laboratories, Inc. | 4.1K | — | 11 |
| AS397549US | TAMU-SA - Texas A&M University San Antonio | 4.1K | — | 1 |
| AS397749US | MCLAREN-HEALTHCARE - McLaren Macomb | 4.1K | — | 10 |
| AS21854US | DP-IS - Digital Passage, Inc. | 4.1K | 65.5K | 17 |
| AS26178US | ATKINS-NORTH-AMERICA - AtkinsRealis | 4.1K | — | 10 |
| AS18817US | MIDCO-NET-DW - Midcontinent Communications | 4.1K | — | 1 |
| AS25963US | TCCD-1 - Tarrant County College District | 4.1K | — | 1 |
| AS11023US | SYSSRC - System Source | 4.1K | — | 1 |
| AS214083US | NODEHUB NodeHub LLC | 4.1K | 2 | 18 |
| AS203156US | Relayify-LLC Relayify LLC | 4.1K | 524.3K | 17 |
| AS26123US | ITU-NET-1 - Independence Telecommunications Utility | 4.1K | 65.5K | 6 |
| AS30035US | HEAVENWIRE - Mobilcomm, Inc | 4.1K | — | 16 |
| AS26859US | TELENET-INTL - Fortis Communications, Inc. | 4.1K | — | 1 |
| AS46248US | LSA-SQL-AZ - Sonora Quest Laboratories | 4.1K | — | 1 |
| AS33045US | HGST-AS - Western Digital Corporation | 4.1K | — | 11 |
| AS19162US | MBI-AS-1 - The Moody Bible Institute of Chicago | 4.1K | — | 1 |
| AS25915US | WSWHE-NET - WASHINGTON SARATOGA WARREN HAMILTON & ESSEX BOCES | 4.1K | 16 | 2 |
| AS23548US | THEDACARE - Thedacare | 4.1K | — | 1 |
| AS46241US | WASHTENAW-ISD-ASN - Washtenaw ISD | 4.1K | — | 3 |
| AS64227US | CTC-AS2 - CONSOLIDATED TELEPHONE COMPANY | 4.1K | 131.1K | 7 |
| AS399359US | MAX - Maxcy | 4.1K | — | 16 |
| AS401288US | CL-BROADBAND - C&L Broadband Connect, LLC | 4.1K | 65.5K | 2 |
| AS53398US | BERKA-ASN - Berkadia Commercial Mortgage LLC | 4.1K | — | 2 |
| AS394976US | ABACUS - Abacus Data Systems, Inc. | 4.1K | 2 | 7 |
| AS10653US | MVANET - USAI.NET | 4.1K | — | 1 |
| AS53399US | CLARKSTOWN-CENTRAL-SCHOOL-DISTRICT - Clarkstown Central School District | 4.1K | — | 1 |
| AS401773US | WCO-AS - Washington County, Oregon | 4.1K | — | 1 |
| AS40200US | ASN-MUNSON-CHARTER-ATT - Munson Healthcare | 4.1K | — | 2 |