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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 | 25,247 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| 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.
32,189 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 | 3,901 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,010 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,222 |
| 2.6K |
| — |
| 2 |
| AS393240US | BTWI-WIRELESS-INTERNET - BTWI Wireless Internet LLC | 2.6K | — | 3 |
| AS26492US | VCCCD-NET - VCCCD | 2.6K | — | 10 |
| AS18757US | TYCOIS - ADT Security Services, Inc. | 2.6K | — | 10 |
| AS32852US | LEXNE-ASN-1 - Lexington Electric System | 2.6K | 65.5K | 4 |
| AS26814US | ASN-COBNET - City of Birmingham | 2.6K | — | 2 |
| AS396944US | UNFI - UNFI | 2.6K | — | 7 |
| AS46413US | FULAIR - Fulair, LLC | 2.6K | — | 7 |
| AS25629US | ACPS-8-ASN - Albemarle County Public Schools | 2.6K | — | 6 |
| AS401163US | ACGNODE - ACGNODE INC | 2.6K | 2.9M | 55 |
| AS394122US | DEBEVOISE - Debevoise and Plimpton LLP | 2.6K | — | 9 |
| AS6312US | TRIOTELASN - TrioTel Communications, Inc. | 2.6K | — | 10 |
| AS40528US | ICANN-LAX - ICANN | 2.6K | 3 | 7 |
| AS32912US | PUBLIX-WEB-SERVICES - Publix Super Markets, Inc. | 2.6K | — | 9 |
| AS53845US | BBDTEL - Broadband Dynamics, LLC | 2.6K | — | 10 |
| AS4232US | EDEN-AS - Adhesive Media, Inc. | 2.6K | — | 10 |
| AS40412US | PAHOUSE - PA House of Representatives - Democratic Caucus | 2.6K | — | 6 |
| AS46244US | WEBMD-IDC1-AS - WebMD, LLC | 2.6K | — | 3 |
| AS14283US | BLUEONE - blueone.net | 2.6K | — | 10 |
| AS25755US | NPR - National Public Radio, Inc. | 2.6K | — | 10 |
| AS32123US | 4FAST-NET - Root Automation | 2.6K | — | 6 |
| AS21509US | APOLLONYC - Apollo Management, L.P. | 2.6K | — | 10 |
| AS400342US | EDGENAT-CLOUD - EDGENAT CLOUD | 2.6K | 1.4M | 55 |
| AS25814US | DIGITALC - DigitalC | 2.6K | — | 6 |
| AS18934US | TENHATS - TenHats, LLC | 2.6K | 3 | 13 |
| AS401095US | TABLETOP - TABLE TOP TELEPHONE COMPANY INC | 2.6K | — | 8 |
| AS218936US | AT-LLC ATLANTIC TELECOM LLC | 2.6K | — | 10 |
| AS10255US | SINISTER - Sinister and Solitary | 2.6K | 257 | 9 |
| AS13688US | PSEG - Public Service Enterprise Group | 2.6K | — | 4 |
| AS32111US | CITIGROUP-JAPAN - Citigroup Inc. | 2.6K | — | 10 |
| AS64269US | NSOFNETWORKSINC - Meta Networks Inc | 2.6K | — | 9 |
| AS22268US | LEVEL365 - LEVEL365 HOLDINGS LLC | 2.6K | — | 9 |
| AS14438US | USA-CHOICE-OIL-CITY - U S A CHOICE INTERNET SERVICES CO. | 2.6K | — | 10 |
| AS10326US | WPI - Worcester Polytechnic Institute | 2.6K | 1 | 3 |
| AS20062US | WASTE-MAN - WASTE MANAGEMENT INC. | 2.6K | — | 10 |
| AS394456US | EPIK-LLC - Epik LLC | 2.6K | 1 | 11 |
| AS40376US | THE-BANK-OF-NEW-YORK-MELLON-CORPORATION-AS40376 - The Bank of New York Mellon Corporation | 2.6K | — | 7 |
| AS30533US | THEBOE-30533 - The Boeing Company | 2.6K | — | 10 |
| AS402167US | AS-NEBIUS-CENTRAL - Nebius Inc. | 2.6K | 17 | 5 |
| AS16668US | GBPSW-AS - GBP Software, LLC | 2.6K | 65.5K | 7 |
| AS18776US | VALASSIS - Valassis Communications, Inc. | 2.6K | — | 3 |
| AS25871US | WFG - Willkie Farr & Gallagher LLP | 2.6K | — | 10 |
| AS21738US | ROZINT - Rozint | 2.6K | 516 | 13 |
| AS11133US | SORENSON-99 - Sorenson Communications, Inc. | 2.6K | — | 10 |
| AS36693US | ALEGENT-HEALTH-1 - IMMANUEL MEDICAL CENTER | 2.6K | — | 2 |
| AS36631US | ZGTLD - VeriSign Global Registry Services | 2.6K | 9 | 19 |
| AS19940US | ACECAPE-INC - Ace Innovative Networks, Inc. | 2.6K | — | 10 |