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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,173 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,242 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,668 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,949 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,365 |
| 512 |
| — |
| 2 |
| AS12128US | ITS-HYDERABAD - Refinitiv US LLC | 512 | — | 2 |
| AS36649US | RIUS - RIVERSTONE INTERNATIONAL U.S., LLC | 512 | — | 2 |
| AS53769US | BBKLAW - Best Best & Krieger LLP | 512 | — | 2 |
| AS397690US | USTX04 - 1A Smart Start LLC | 512 | 1 | 3 |
| AS394129US | USS - United Site Services | 512 | — | 2 |
| AS400530US | DCS-01 - Dubuque Community Schools | 512 | — | 2 |
| AS32109US | REDDOTNET-USA - Reddot Networks Inc. | 512 | 4.1K | 3 |
| AS6394US | DATA-BROADCASTING - Intercontinental Exchange, Inc. | 512 | — | 2 |
| AS401230US | STAPLES-EQUINIX-EAST - Staples, Inc | 512 | — | 2 |
| AS16996US | TARRANTCOUNTYTX-GOV - Tarrant County | 512 | — | 2 |
| AS396928US | ASN-FC-01 - FB CORPORATION | 512 | — | 2 |
| AS22617US | SACCOURT - Superior Court of California, County of Sacramento | 512 | 16 | 3 |
| AS25699US | WILSONART-INTL - Wilsonart International | 512 | — | 2 |
| AS401763US | BLUEPULSENETWORKSLLC - Blue Pulse Networks LLC | 512 | 4.1K | 3 |
| AS54766US | DC-ASN-01 - Hilton Resorts Corporation | 512 | — | 2 |
| AS15326US | HIGHERSPEED - Higherspeed Internet | 512 | 4.1K | 3 |
| AS36027US | CLOUDWYZE - CloudWyze, Inc. | 512 | — | 1 |
| AS396279US | WASHINGTONELECTRIC-AS-1 - WASHINGTON ELECTRIC COOPERATIVE, INC. | 512 | 2 | 4 |
| AS36572US | WPBF-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS36313US | LTICTASN01 - Lendingtools.com Inc. | 512 | — | 2 |
| AS26699US | MUHLENBERG-COLLEGE - Muhlenberg College | 512 | — | 2 |
| AS54906US | BENCODENTAL - Benco Dental Company | 512 | — | 2 |
| AS62507US | CHV-COH - City of Hampton, Virginia | 512 | — | 2 |
| AS11548US | HERITAGE-UNIV-AS - Heritage University | 512 | — | 2 |
| AS54861US | SAHARA-COMPUTE-COM - Sahara Compute LLC | 512 | — | 2 |
| AS400271US | INTERCO-ASN01 - Interco Trading, Inc. | 512 | — | 2 |
| AS400313US | APOG-UNA - Apogee Telecom Inc. | 512 | — | 1 |
| AS401081US | OPENINFRA-FL - Open Infra Inc. | 512 | — | 2 |
| AS402242US | NEVCOFIBER-AS - Nevada County Fiber Inc. | 512 | — | 1 |
| AS25916US | FREEMAN-COMPANIES - The Freeman Companies | 512 | — | 2 |
| AS393888US | SQUAR-12-AS-1 - SQUARETRADE, INC. | 512 | — | 2 |
| AS202261US | NetDEF-CH Network Device Education Foundation Inc | 512 | 2 | 4 |
| AS400036US | SAC-01 - Seattle Arena Company, LLC | 512 | — | 2 |
| AS398074US | SN-COLL-DIA - City National Bank | 512 | — | 2 |
| AS395740US | CHOCTAW-NATION-OF-OKLAHOMA - Choctaw Nation of Oklahoma | 512 | — | 2 |
| AS46799US | SOSASN1 - SOS | 512 | — | 2 |
| AS13394US | SCHUYLKILL-INTERMEDIATE-UNIT-29 - SCHUYLKILL INTERMEDIATE UNIT 29 | 512 | — | 1 |
| AS13510US | BAYSTATEHEALTH - Baystate Health, Inc. | 512 | — | 2 |
| AS14409US | MCSI - Myers Computer Service, Inc. | 512 | — | 2 |
| AS393534US | FHLBM-AS - Federal Home Loan Bank of Des Moines | 512 | — | 2 |
| AS26157US | LOSTCIPHER-CONSULTING - Lostcipher Consulting | 512 | 512 | 4 |
| AS62891US | ASN-CHIEF-1 - CHIEF INDUSTRIES, INC. | 512 | — | 1 |
| AS53775US | SEKISUI KYDEX - Sekisui KYDEX, LLC | 512 | — | 2 |
| AS393787US | CEG - Citizens Energy Group | 512 | — | 2 |
| AS18622US | IVANET-YTO - IBASIS INC. | 512 | — | 2 |
| AS22537US | ALBEMARLE-CORP - Albemarle Corp | 512 | — | 2 |