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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,306 |
| 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.
32,232 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,897 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,005 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 512 |
| — |
| 2 |
| AS824US | GLAXOSMITHKLINE - GlaxoSmithKline | 512 | — | 1 |
| AS30707US | YABOIII - YaBoiii | 512 | — | 2 |
| AS27507US | XTREME-INTERNET - Xtreme Internet | 512 | — | 2 |
| AS6508US | VANTIVA - Vantiva USA Shared Services Inc. | 512 | — | 2 |
| AS32830US | CCS-325-1 - Connecticut Computer Service, Inc. | 512 | — | 2 |
| AS14207US | CSG-OD2 - CSG Systems Inc. | 512 | — | 2 |
| AS399983US | APOG-MILLERSVILLE - Apogee Telecom Inc. | 512 | — | 1 |
| AS22874US | HIGH-DATA-CONNECTION - HIGH DATA CONNECTION LLC | 512 | — | 2 |
| AS36760US | KHOG-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS26852US | FAFCU-BGP-01 - F&A Federal Credit Union | 512 | — | 2 |
| AS2021US | UNISYS-INT - Unisys Corporation | 512 | — | 2 |
| AS395324US | NETBLK-CBOCS-HO-NET - Cracker Barrel Old Country Store, Inc. | 512 | — | 2 |
| AS18920US | HEI - Hawaiian Electric Industries, Inc. | 512 | — | 2 |
| AS394127US | ALACRITYSERVICES - Alacrity Services | 512 | — | 2 |
| AS398843US | SABINO-WIFI-ASN - Sabino WiFi LLC | 512 | 65.5K | 3 |
| AS31955US | ASN-CONNEXUSENERGY - CONNEXUS ENERGY | 512 | — | 2 |
| AS23434US | SURS - State Universities Retirement System | 512 | — | 2 |
| AS402213US | BUFFALO BILLS STADIUM - Bills stadium and events company llc | 512 | — | 2 |
| AS18971US | BCUS - BARCLAYS FINANCIAL CORP. | 512 | — | 2 |
| AS36525US | ALLEGIANCE-HEALTH - ALLEGIANCE HEALTH SERVICES | 512 | — | 2 |
| AS395508US | PORTS-AMERICA - Ports America Shared Services, Inc. | 512 | — | 2 |
| AS215406US | paymentpass PaymentPass Inc. | 512 | — | 2 |
| AS18518US | ARES-MGMT - Ares Management LLC | 512 | — | 2 |
| AS54529US | LCRC-AS - Louisiana Cancer Research Center | 512 | — | 2 |
| AS33756US | CHC-ASN-A - The Children's Hospital Corporation | 512 | 256 | 2 |
| AS13570US | AS13570 - Angelo, Gordon & Co., L.P. | 512 | — | 2 |
| AS27304US | DUHAWKS - Loras College | 512 | — | 2 |
| AS26334US | BAIN-WTR - Bain & Company | 512 | — | 2 |
| AS29746US | S3PL-ASN - S3 Partners LLC | 512 | — | 2 |
| AS19102US | PCI-TW - Patterson Companies, Inc. | 512 | — | 2 |
| AS46999US | CREWSBANKCORP - Crews Banking Corporation | 512 | — | 2 |
| AS36513US | BRETSA - BRETSA | 512 | — | 2 |
| AS397488US | NEW-ALBANY-PLAIN-LOCAL-SCHOOLS-AS - New Albany-Plain Local School District | 512 | 4.1K | 3 |
| AS16854US | HCCU-2 - Hapo Community Credit Union | 512 | — | 2 |
| AS63151US | CPSL-ASN - The Children's Place | 512 | — | 2 |
| AS53546US | LEGION - Legion, Inc. | 512 | — | 1 |
| AS54228US | INVTECHNOLOGIES - Invision Technologies, LLC | 512 | — | 2 |
| AS396083US | ARVUS-160-84 - Framatome Inc. | 512 | — | 2 |
| AS396893US | WWMS - mitelefono.com | 512 | 65.5K | 4 |
| AS398480US | RBH - Robinson Bradshaw | 512 | — | 2 |
| AS40711US | INTERACTIVE-CHIC - Interactive Brokers LLC | 512 | — | 2 |
| AS401183US | STEGEMEYER-NET - James Stegemeyer, Sole Proprietorship | 512 | 16 | 3 |
| AS400552US | ODYACAD-ASN - Odyssey Academy, Inc. | 512 | — | 2 |
| AS399358US | ANTHROPIC - Anthropic, PBC | 512 | 2 | 3 |
| AS40056US | WGLV-20 - Westgate Resorts Ltd | 512 | — | 2 |
| AS398000US | TGNA-WTIC - TEGNA Inc. | 512 | — | 2 |