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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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. | 218M | 24,543 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,304 |
| 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.
32,174 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 | 3,884 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,999 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,345 |
| 256 |
| — |
| 1 |
| AS23271US | CITY-OF-WATSONVILLE - City of Watsonville | 256 | — | 1 |
| AS26683US | DASH FT - BB - Dash Financial Technologies LLC | 256 | — | 1 |
| AS398177US | ITV-AMERICA-AS1 - ITV America Inc | 256 | — | 1 |
| AS63059US | NETSER-US-DE1 - Netser, Inc. | 256 | — | 1 |
| AS396935US | RI-TELEPHONE-01 - Rhode Island Telephone, Inc. | 256 | — | 1 |
| AS23104US | AMERICAN-TIRE-DISTRIBUTORS-INC - AMERICAN TIRE DISTRIBUTORS, INC. | 256 | — | 1 |
| AS16855US | DOUGHERTY-DCSS-1 - Dougherty County School System | 256 | — | 1 |
| AS399579US | CPASNET2 - Centerview Partners, LLC | 256 | — | 1 |
| AS46607US | FORREST-T-JONES - Forrest T Jones & co, Inc. | 256 | — | 1 |
| AS19728US | HUGHESBROS - Hughes Brothers Inc. | 256 | — | 1 |
| AS398918US | ULF-ASN-01 - Upper Lakes Foods, Inc. | 256 | — | 1 |
| AS395146US | OTVM-AS-01 - Optiv | 256 | — | 1 |
| AS54428US | FRD-ASN - Leonardo DRS, Inc. | 256 | — | 1 |
| AS402360US | BRFLASHV - BRF | 256 | — | 1 |
| AS63455US | AS63455 - C&J Spec-Rent Services, Inc. | 256 | — | 1 |
| AS36716US | DSO-ASN-01 - Morgan & Morgan, P.A. | 256 | — | 1 |
| AS399359US | MAX - Maxcy | 256 | — | 1 |
| AS54857US | TQS-PDX-INTERNET - Qorvo US, Inc | 256 | — | 1 |
| AS18537US | PPD-AUSTIN - PPDI | 256 | — | 1 |
| AS399978US | COF-ASN-01 - City of Franklin | 256 | — | 1 |
| AS22119US | LEE-EQ1 - Lee Equity Partners LLC | 256 | — | 1 |
| AS36535US | HUDSON-RIVER-TRADING-LLC-36535 - Hudson River Trading LLC | 256 | — | 1 |
| AS216321US | ZEROAV-EU Zero Attack Vector LLC | 256 | 1K | 8 |
| AS1099US | WIFIBER-SPO-01 - WIFIBER | 256 | — | 1 |
| AS53505US | DRCFA - Huntington Place | 256 | — | 1 |
| AS399213US | VAGARO - Vagaro | 256 | — | 1 |
| AS394952US | LMCU-ASN-01 - Lake Michigan Credit Union | 256 | — | 1 |
| AS393693US | EA-BOGOTA - Electronic Arts, Inc. | 256 | — | 1 |
| AS398364US | ERICSSON-EFN - Ericsson Inc. | 256 | — | 1 |
| AS400865US | TRICKSOLUTIONS - Trick Solutions | 256 | 256 | 2 |
| AS40700US | WILINE - WiLine Networks Inc. | 256 | — | 1 |
| AS30080US | ARNOLD-MAGNETIC-TECHNOLOGIES-CORP-BGP - Arnold Magnetic Technologies Corporation | 256 | — | 1 |
| AS26823US | INTERCEPT1 - First International Bank & Trust | 256 | — | 1 |
| AS399433US | AS-MS-78058 - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas | 256 | — | 1 |
| AS25632US | NORTHBAYHEALTHCARECORP - NorthBay Healthcare Corporation | 256 | — | 1 |
| AS401312US | TUPELO - Gray Media, Inc. | 256 | — | 1 |
| AS401023US | KWIKBIT-INTERNET - Kwikbit Internet, Inc. | 256 | 1 | 2 |
| AS398668US | SKYDANCE - Skydance Productions LLC | 256 | 16 | 2 |
| AS401791US | FDR-068 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS35880US | WFC-CISD-INET - Wakefern Food Corp. | 256 | — | 1 |
| AS398138US | CTG-IMDC-01 - Ciegate Technologies | 256 | — | 1 |
| AS31804US | WEYCO-GROUP-INC - WEYCO GROUP, INC | 256 | — | 1 |
| AS17367US | 382-COM-NY - 382 Communications Corporation | 256 | — | 1 |
| AS400359US | APETORO - ApeToro LLC | 256 | — | 1 |
| AS401833US | AXNET-AS - AXNET LLC | 256 | — | 1 |
| AS21851US | KAINOSCOM-SPRINGVALLEY - Kainos Technologies LLC | 256 | — | 1 |