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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. | 218.1M | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 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.
32,202 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS62920US | PRAIRIEPOWER - Prairie Power, Inc. | 256 | — | 1 |
| AS40531US | CVI - Carbon Valley Internet | 256 | — | 1 |
| AS63477US | CONIFER-EDGE - Coniferous Systems, LLC | 256 | 1 | 2 |
| AS394798US | CPD-AS - Chicago Park District | 256 | — | 1 |
| AS19642US | CONNEL-FOLEY - Connell Foley LLP | 256 | — | 1 |
| AS400729US | AS-BWLOG - Bandwidth Logic, Inc. | 256 | — | 1 |
| AS32561US | AQUIRYN-LLC - Aquiryn LLC | 256 | — | 1 |
| AS40367US | HRH-GHCH - Harbor Regional Health Community Hospital | 256 | — | 1 |
| AS209864US | NAIVE-NETWORK Zhaofeng Li | 256 | 6 | 7 |
| AS394155US | ENSTARAKASN - Enstar Natural Gas Company | 256 | — | 1 |
| AS15355US | EISLER-US - Eisler Capital (US) LLC | 256 | — | 1 |
| AS40522US | SIMPLE1 - Simple Signal, Inc. | 256 | — | 1 |
| AS17016US | EIS-NET - Elevation Improvement Systems, LLC | 256 | — | 1 |
| AS33722US | CCCR-AS - Cache Creek Casino Resort | 256 | — | 1 |
| AS40876US | CITYOFLARGO-01 - City of Largo | 256 | — | 1 |
| AS395346US | BCI-AS-1 - Bonneville County Idaho | 256 | — | 1 |
| AS10544US | NETGAIN-TECHNOLOGIES - NetGain Technologies, Inc. | 256 | — | 1 |
| AS13494US | AS-NJ - Morningstar, Inc. | 256 | — | 1 |
| AS395608US | EA-CHATSWORTH - Electronic Arts, Inc. | 256 | — | 1 |
| AS23111US | GSC-ATLANTAVPC - Gannett Supply Corp. - Atlanta, GA (VPC) | 256 | — | 1 |
| AS11395US | THIEL-AS - Thiel College | 256 | — | 1 |
| AS33466US | FLVS-AS - Florida Virtual School | 256 | — | 1 |
| AS14688US | AS14688 - GlobalView Software Inc. | 256 | — | 1 |
| AS396489US | PPGNHI - PLANNED PARENTHOOD GREAT NORTHWEST, HAWAI'I, ALASKA, INDIANA, AND KENTUCKY | 256 | — | 1 |
| AS398457US | ADVANTIS-CREDIT-UNION - Advantis Credit Union | 256 | — | 1 |
| AS18728US | ISINJ - Instructional Systems Inc. | 256 | — | 1 |
| AS398544US | SIMPLICITYTECH-NET01 - Simplicity Tech | 256 | — | 1 |
| AS401345US | ERNESTECH-ASN-01 - ErnesTech LLC | 256 | — | 1 |
| AS398752US | OUR-SUNDAY-VISITOR - Our Sunday Visitor | 256 | — | 1 |
| AS396927US | MCCUHOUTX - Members Choice Credit Union | 256 | — | 1 |
| AS394709US | HE-AS1 - HealthEdge Software, Inc. | 256 | — | 1 |
| AS399824US | INFINITE-Q-NETWORKS - Infinite Q Networks | 256 | 4.1K | 2 |
| AS398085US | IHA-01 - Trinity Health IHA Medical Group | 256 | — | 1 |
| AS4354US | ERM-026 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS401613US | FSHAC - Four Seasons Heating & Air Conditioning, LLC | 256 | — | 1 |
| AS29947US | KIRKLAND-ELLIS-OC - Kirkland & Ellis LLP | 256 | — | 1 |
| AS55054US | IPMEETIP - IPv4 Superhub Limited | 256 | — | 1 |
| AS398222US | CITY-OF-WPB - City of West Palm Beach | 256 | 1 | 2 |
| AS62581US | WPA - Wonderful Pistachios & Almonds LLC | 256 | — | 1 |
| AS399705US | ADVANCED-IS-NET1 - Advanced IS | 256 | — | 1 |
| AS19243US | ACMLLC - Atlantic Coast Mortgage LLC | 256 | — | 1 |
| AS396844US | WRRE-1 - William Raveis Real Estate, Incorporated. | 256 | — | 1 |
| AS27306US | MTASCUTNEYHOSPITALANDHEALTHCENTER - Dartmouth Hitchcock Medical Center | 256 | — | 1 |
| AS40489US | ALMOCORP - ALMO Corporation | 256 | — | 1 |
| AS54667US | DDAF-FTW - Dean Dorton | 256 | — | 1 |
| AS393432US | NHS14MH - Nanticoke Memorial Hospital INC | 256 | — | 1 |