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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 | 21,253 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,249 |
| 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 | 1,964 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,301 |
| — |
| — |
| 0 |
| AS397218US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397227US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397238US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397366US | SCHMC-ASN - Silver Cross Hospital | — | — | 0 |
| AS397395US | TIDRASN01 - Tortoise Capital Advisors, L.L.C. | — | — | 0 |
| AS397485US | ONICA-GROUP-01 - Rackspace Hosting | — | — | 0 |
| AS397601US | CATCHPOINT - Catchpoint Systems Inc | — | — | 0 |
| AS397657US | BURBANK-USD - Burbank Unified School District | — | — | 0 |
| AS397683US | PINE CELLULAR - Pine Telephone Company, INC. | — | — | 0 |
| AS397714US | DC2HS-CAP - Naval Information Warfare Center Atlantic | — | — | 0 |
| AS397863US | ELN-DC1 - EarthLink | — | — | 0 |
| AS397916US | FOXIT-US-01 - Foxit Software Inc | — | — | 0 |
| AS397988US | BIBERK-01 - biBERK Insurance Services Inc | — | — | 0 |
| AS398103US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS398106US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS398202US | ASSET-BLACK - Momentum Telecom, Inc. | — | — | 0 |
| AS398212US | STANDARD-INTERNET - Standard Internet Services | — | — | 0 |
| AS398217US | GUIDANCE-HOSTING-US - GUIDANCE HOSTING INC | — | — | 0 |
| AS398258US | CITG4 - First-Citizens Bank & Trust Company | — | — | 0 |
| AS398384US | RMS-BGP-ASN - Residential Mortgage Services, Inc | — | — | 0 |
| AS398486US | SMF-EQ1 - Smithfield Foods, Inc. | — | — | 0 |
| AS398494US | AS-RM-817 - Ruoff Mortgage | — | — | 0 |
| AS398513US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398546US | ELEMENT-01 - Wisper ISP, LLC | — | — | 0 |
| AS398593US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398602US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398626US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398627US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398662US | SBC2 - SBFiber | — | — | 0 |
| AS398687US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398692US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398784US | KUBOTA-MANUFACTURING-OF-AMERICA - Kubota Manufacturing of America Corporation | — | — | 0 |
| AS398861US | LIAHONIX-AS-01 - LIAHONIX LLC | — | — | 0 |
| AS398897US | HCNC-ASN - Henderson County, NC | — | — | 0 |
| AS398936US | STB-BGP - Surface Transportation Board | — | — | 0 |
| AS399001US | TPLLC-CO - Third Point LLC | — | — | 0 |
| AS399013US | ONQ-FINANCIAL-HQ - ON Q FINANCIAL, INC. | — | — | 0 |
| AS399107US | TERIDION3 - Teridion inc | — | — | 0 |
| AS399186US | AS-SATINOS - Satinos LLC | — | — | 0 |
| AS399227US | OPN-SYS-INF-INT-A01-IBX-DA1-IXP-DALLAS - OPEN SYSTEMS INFRASTRUCTURE INTELLIGENCE CORPORATION | — | — | 0 |
| AS399349US | DGTS-USA-LLC - DGTS USA LLC | — | — | 0 |
| AS399355US | GPD-1 - CoinFLip | — | — | 0 |
| AS399495US | CWAX-PRI-ASN-01-0321 - City of Waxahachie | — | — | 0 |
| AS399507US | CRUSOE-ASN-A - CRUSOE ENERGY SYSTEMS LLC | — | — | 0 |
| AS399547US | BOARD-OF-ELECTIONS-IN-THE-CITY-OF-NEW-YORK-ENR - Board of Elections in the City of New York | — | — | 0 |
| AS399596US | APOG-MUSKINGUM - Apogee Telecom Inc. | — | — | 0 |