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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,512 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,235 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,281 |
| — |
| — |
| 0 |
| AS19335US | APRIA-HEALTHCARE - Apria Healthcare Inc. | — | — | 0 |
| AS19339US | DIDATA-NE - Dimension Data North America, Inc. | — | — | 0 |
| AS19497US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS19499US | ESRTA-AS1 - Eastern Slope Rural Telephone Association | — | — | 0 |
| AS19565US | CSPIRE-MPLS-01 - C Spire Fiber | — | — | 0 |
| AS19589US | COL - City Of Leesburg | — | — | 0 |
| AS19597US | DAILY-MANAGEMENT - Daily Management, Inc. | — | — | 0 |
| AS19758US | NYEC-3 - New York eHealth Collaborative | — | — | 0 |
| AS19910US | NEUSTAR-AS6 - NeuStar, Inc. | — | — | 0 |
| AS19985US | CDINET-ASN-01 - California Department of Insurance | — | — | 0 |
| AS19991US | FIRSTENERGYCORP - FirstEnergy Corp. | — | — | 0 |
| AS19996US | ANY2-RS-WEST - CoreSite | — | — | 0 |
| AS20209US | LOGICWORKS-AS - Logicworks Corporation | — | — | 0 |
| AS20319US | DALTON-U - Dalton Utilities | — | — | 0 |
| AS20357US | BAJA-UT-NM-CO - TDS TELECOM | — | — | 0 |
| AS20369US | GDC-CBGAS1 - GLOBAL DATA CONSULTANTS LLC | — | — | 0 |
| AS20393US | MLOCBEANSTALK - MeridianLink, Inc. | — | — | 0 |
| AS20411US | GSSLK - The Goldman Sachs Group, Inc. | — | — | 0 |
| AS21507US | OPP-21507 - Oak Point Partners | — | — | 0 |
| AS21593US | ZANTAZ-US - Zantaz | — | — | 0 |
| AS21609US | SENTINEL-BENEFITS-GROUP - Sentinel Benefits Group, INC | — | — | 0 |
| AS21618US | DISCUSNET - Philips Electronics North America Corporation | — | — | 0 |
| AS21621US | RESPONSYS-2 - Responsys Inc. | — | — | 0 |
| AS21652US | PWC - RTX Corporation | — | — | 0 |
| AS21772US | SKY-WEB - SKYWEB, INC. | — | — | 0 |
| AS21844US | ALDERAN-ASN - IBM Cloud | — | — | 0 |
| AS21967US | HINES-2800-POST-OAK - HINES INTERESTS | — | — | 0 |
| AS22087US | SEARS-ECOMM - Sears Holdings Management Corporation | — | — | 0 |
| AS22099US | COGENT-22099 - Cogent Communications, LLC | — | — | 0 |
| AS22100US | CRITICAL-PATH - Critical Path, LLC | — | — | 0 |
| AS22240US | RFIH-NET3 - Retail Finance International Holdings, Inc. | — | — | 0 |
| AS22269US | CHARTER-22269-BLUE-IT - Charter Communications LLC | — | — | 0 |
| AS22279US | V4ESCROW-US - V4Escrow, LLC | — | — | 0 |
| AS22281US | BPL-US - Baker Petty LLC | — | — | 0 |
| AS22373US | PEGS - Pegasus Solutions, Inc. | — | — | 0 |
| AS22388US | TRANSPAC - Indiana University | — | — | 0 |
| AS22419US | ACNINC-01 - ACN, INC | — | — | 0 |
| AS22421US | SENT - Sent, Inc. | — | — | 0 |
| AS22609US | ITAPE - Intertape Polymer Corp | — | — | 0 |
| AS22625US | IMDC-AS22625 - Iron Mountain Data Center | — | — | 0 |
| AS22670US | ALOHA-IX-ROUTE-SERVERS - Ninja-IX Corporation | — | — | 0 |
| AS22673US | TURBINE - Turbine Inc. | — | — | 0 |
| AS22707US | UXCECLIPSE-ASN - TECTURA CORPORATION | — | — | 0 |
| AS22813US | RCAB - ROMAN CATHOLIC ARCHDIOCESE BOSTON | — | — | 0 |
| AS22837US | MIGHTY-OAK-TECH - Mighty Oak Technology | — | — | 0 |
| AS22940US | SILVERLAKE - Silver Lake Technology Management, L.L.C. | — | — | 0 |