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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 | 3,135 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,289 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,267 |
| 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 | 3,731 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,972 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| — |
| — |
| 0 |
| AS17233US | ATT-CERFNET-BLOCK - AT&T Enterprises, LLC | — | — | 0 |
| AS17256US | CIC-SCCA-AS - Creative Interconnect Communications LLC | — | — | 0 |
| AS17258US | ATT-MOBILITY-LLC-AS17258 - AT&T Enterprises, LLC | — | — | 0 |
| AS17337US | SCUFFLE - Scuffle | — | — | 0 |
| AS17392US | HOLW-GOLD - Holwell Shuster & Goldberg LLP | — | — | 0 |
| AS18549US | VAULT-HOST-AMS - Vault Host | — | — | 0 |
| AS18609US | NETAPP-ANYCAST - Net Applications, Inc. | — | — | 0 |
| AS18730US | VISANET-2 - VISA INTERNATIONAL SERVICE ASSOCIATION | — | — | 0 |
| AS18736US | WILMERHALE - Wilmer Cutler Pickering Hale and Dorr LLP | — | — | 0 |
| AS18802US | MUT-AMER - Mutual of America Life Insurance Company | — | — | 0 |
| AS18924US | SYMC-CPE2 - Avago Technologies U.S. Inc. | — | — | 0 |
| AS19073US | KYN-GTS - Kyndryl | — | — | 0 |
| AS19110US | AS19110 - Automatic Data Processing, Inc. | — | — | 0 |
| AS19129US | VISTABEAM-NET - VISTABEAM | — | — | 0 |
| AS19172US | XROADS-NET - Crossroads International Communications, Incorporated | — | — | 0 |
| AS19238US | ADOBE2-AS-AS - Adobe Systems Inc. | — | — | 0 |
| AS19294US | SUNGARDAS-19294 - BroadbandONE, LLC | — | — | 0 |
| AS19325US | SMCC-BGP-ASN - Southern Maine Community College | — | — | 0 |
| AS19335US | APRIA-HEALTHCARE - Apria Healthcare Inc. | — | — | 0 |
| AS19339US | DIDATA-NE - Dimension Data North America, Inc. | — | — | 0 |
| AS19436US | CAPROCK-1 - Cap Rock Telephone Cooperative, 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 |
| AS19996US | ANY2-RS-WEST - CoreSite | — | — | 0 |
| AS20111US | LENOVO-NET - Lenovo (United States) Inc. | — | — | 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 |
| AS21616US | NECA - National Exchange Carrier Association, 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 |