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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,149 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,670 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,953 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,395 |
| 256 |
| — |
| 1 |
| AS30477US | SHO - Shorenstein Realty Services | 256 | — | 1 |
| AS40234US | RAPIDPARTS - Rapidparts, Inc. | 256 | — | 1 |
| AS398741US | AS-VERTEXLINK-01 - VertexLink Inc | 256 | 257 | 3 |
| AS399205US | MAYSTREET-INET-01 - Maystreet | 256 | — | 1 |
| AS46242US | SAFEWAYINS1 - Safeway Insurance Group | 256 | — | 1 |
| AS25913US | ASI-DCO-AS-109 - APPLIED SYSTEMS, INC | 256 | — | 1 |
| AS395144US | INDY-ASN-01 - Independent Connections LLC | 256 | — | 1 |
| AS400283US | ENDLESS-GROUP - Endless Group | 256 | 256 | 2 |
| AS22507US | SPROUTS - Sprouts Farmers Market | 256 | — | 1 |
| AS399149US | GOOD-SHEPHERD - Good Shepherd Medical Center | 256 | — | 1 |
| AS30379US | JEFFPARISH - Parish of Jefferson | 256 | — | 1 |
| AS54424US | DCE-ASN - Festival Fun Parks,LLC | 256 | — | 1 |
| AS511US | PRISMA HEALTH - Prisma Health | 256 | — | 1 |
| AS402492US | HOSTCRAM - HostCram | 256 | — | 1 |
| AS15079US | IONIC-AS - Ionic Capital Management LLC | 256 | — | 1 |
| AS40094US | SOUTHCENTRAL-FOUNDATION-01 - Southcentral Foundation | 256 | — | 1 |
| AS20027US | MARTIGNETTI-AS - MARTIGNETTI COMPANIES | 256 | — | 1 |
| AS401772US | CORELIGHTNET-LAB - Corelight, Inc. | 256 | 8 | 2 |
| AS393272US | PORT-MADISON-ENTERPRISES - Port Madison Enterprises | 256 | — | 1 |
| AS16505US | HTF-FREDERICK - HTF | 256 | — | 1 |
| AS21721US | BLT-US-01 - Blount International, Inc | 256 | — | 1 |
| AS401566US | MONTVIRIDIAN-01 - Montviridian LLC | 256 | 4.1K | 2 |
| AS27622US | RSA-AL - Retirement Systems of Alabama | 256 | — | 1 |
| AS19104US | MHSC-01 - Memorial Hospital of Sweetwater County Foundation | 256 | — | 1 |
| AS603US | EQUINIX-EC - Equinix, Inc. | 256 | 4.1K | 2 |
| AS393501US | JCC-13-AS - JCC | 256 | 16 | 2 |
| AS396377US | FASTCLOUD - fastCLOUD | 256 | — | 1 |
| AS400679US | UBERDUCK - Uberduck, LLC | 256 | 4.1K | 2 |
| AS23540US | CMH-IX - CMH-IX | 256 | — | 1 |
| AS19911US | SECURITYSERVICES - Vercara, LLC | 256 | — | 1 |
| AS33648US | INTERNET-LLC - Patriot Broadband | 256 | 1.5K | 7 |
| AS395016US | WAKE-WIRELESS - WAKE WIRELESS | 256 | 65.5K | 2 |
| AS40109US | FORSYTH-K12-GA-US - Forsyth County Board of Education | 256 | — | 1 |
| AS402549US | TERRASERVERS-NET - Terraservers | 256 | — | 1 |
| AS33589US | CITYOFSOUTHLAKE - City of Southlake | 256 | — | 1 |
| AS19765US | IBM-RC-440ABL - IBM Corporation | 256 | — | 1 |
| AS16508US | DESMOND - AEG | 256 | — | 1 |
| AS53557US | PITTS-18 - Pittsburgh Penguins LP | 256 | — | 1 |
| AS22180US | PRECISION-IT - PRECISION TECHNOLOGY, INC. | 256 | — | 1 |
| AS30293US | SOUTHCO-AS30293 - SOUTHCO INC | 256 | — | 1 |
| AS11244US | MIS-NET - Midstream Integrity Services LLC | 256 | — | 1 |
| AS15281US | NGCPUB - National Gypsum Company | 256 | — | 1 |
| AS399369US | KIRKLAND-ELLIS-PA - Kirkland & Ellis LLP | 256 | — | 1 |
| AS20331US | AS-20331 - Onity Group Inc. | 256 | — | 1 |
| AS63379US | MNSCA - Sun Country Airlines | 256 | — | 1 |
| AS394439US | BMCSAAS-US - BMC Software, Inc. | 256 | — | 1 |