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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,291 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,268 |
| 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 | 411 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,732 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,968 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| — |
| — |
| 0 |
| AS395749US | KELSER-CORP - Kelser Corporation | — | — | 0 |
| AS395796US | PEAK-INTERNET-BACKUP - Peak Internet | — | — | 0 |
| AS396030US | G2WS - G2 Web Services LLC | — | — | 0 |
| AS396124US | ETHERIC-SOCAL - Etheric Networks, Inc. | — | — | 0 |
| AS396166US | WKBL-1 - World Knowledge Bank LLC | — | — | 0 |
| AS396201US | CCCAS1 - Contra Costa County | — | — | 0 |
| AS396551US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396567US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396584US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396587US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396617US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396622US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396671US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396698US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396717US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396734US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396740US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396774US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396807US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396925US | B2EQUITY-AS1 - B2 Equity Holdings, inc. | — | — | 0 |
| AS397004US | BRUNE1-ARIN - The Reynolds and Reynolds Company | — | — | 0 |
| AS397036US | WCL-151 - Webcor Builders | — | — | 0 |
| AS397049US | TELIGENTIP-AS - TeligentIP Inc. | — | — | 0 |
| AS397086US | VAULT-HOST-HOUSTON - Vault Host | — | — | 0 |
| AS397111US | AS-AIB-1 - AIB | — | — | 0 |
| AS397186US | CM-IX - CMSInter.net LLC | — | — | 0 |
| AS397199US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397272US | DAU - Defense Acquisition University | — | — | 0 |
| AS397306US | PJU-01 - Papa John's USA, Inc. | — | — | 0 |
| AS397387US | TEAM-SAN-JOSE - Team San Jose | — | — | 0 |
| AS397532US | CF-MULTI-HOMED-01 - Citizens and Farmers Bank | — | — | 0 |
| AS397622US | DART-CONTAINER-CORP-ASN - Dart Container Corporation | — | — | 0 |
| AS397655US | NETSMART-IIT - Netsmart Technologies Inc. | — | — | 0 |
| AS397668US | IFC - Infocrest Systems LLC | — | — | 0 |
| AS397853US | AS-OCF-01 - ORANGE COUNTY FIBER LLC | — | — | 0 |
| AS397912US | SYNGENTA-01 - Syngenta Crop Protection, LLC | — | — | 0 |
| AS398083US | YALE-AS - Yale University | — | — | 0 |
| AS398102US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS398128US | SDN-01 - SDN Premium Networks LLC | — | — | 0 |
| AS398175US | LARKSUITE - LARK ENTERPRISE APPLICATIONS INC. | — | — | 0 |
| AS398368US | DYE-NO-MYTE - Dye-no-myte LTD | — | — | 0 |
| AS398431US | ATLANTICMETRO-EZE - Atlantic Metro Communications II, Inc. | — | — | 0 |
| AS398520US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398523US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398569US | JECEMC - JEFFERSON ENERGY COOPERATIVE, AN ELECTRIC MEMBERSHIP CORPORATION | — | — | 0 |
| AS398599US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |