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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 | 21,129 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,664 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,947 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,375 |
| 768 |
| 1 |
| 3 |
| AS27451US | USO-ASN - US Oncology, Inc. | 768 | — | 3 |
| AS13955US | ECHO-UPLINKDATA-COM - Echostar Broadcasting Corporation | 768 | — | 3 |
| AS40420US | SILVERLINESOLUTIONSINC - Silverline Solutions INC. | 768 | — | 2 |
| AS14354US | WACHTER-AS1 - Wachter Technology Solutions | 768 | — | 2 |
| AS63125US | AS63125 - Cablevision Lightpath LLC | 768 | — | 3 |
| AS63321US | AS-RAC - Rent-A-Center Inc. | 768 | — | 2 |
| AS13464US | CPLP-ASN - Centerbridge Partners, L.P. | 768 | — | 3 |
| AS394092US | BCT-CONSUTLING - BCT Consulting Inc. | 768 | — | 3 |
| AS30172US | FAMC-1 - Citizens Bank, National Association | 768 | — | 3 |
| AS29767US | COMMERCE-BANCSHARES - Commerce Bank | 768 | — | 3 |
| AS1325US | ANSBB-ASNNET-1 - Verizon Business | 768 | — | 3 |
| AS22169US | OMNIS-ANYCAST-1 - Omnis Network, LLC | 768 | 3 | 6 |
| AS398388US | ELAUWIT-CONNECTION - Elauwit Connection Inc. | 768 | — | 3 |
| AS395030US | TLC - The Lamar Company, LLC | 768 | — | 3 |
| AS401988US | AS5005 - 5005 LLC | 768 | 260 | 8 |
| AS400383US | HUMBLE-BRIDGER-1 - Denson Technologies | 768 | 3 | 6 |
| AS22172US | MITCHELL-INTERNATIONAL-DC2 - Mitchell International | 768 | — | 3 |
| AS23354US | ECHOSTAR-CO - Echostar Purchasing Corporation | 768 | — | 3 |
| AS399076US | BAYER-MEX - Bayer Corporation | 768 | — | 2 |
| AS62538US | IPFAIL - ipFail Networks | 768 | 131.1K | 5 |
| AS23018US | CSMGUSA - CareSource Management Group, Co. | 768 | — | 3 |
| AS45008US | Amex-EMEA American Express Travel Related Services Company, Inc | 768 | — | 3 |
| AS393898US | ALWAYSON - AlwaysON Internet | 768 | — | 3 |
| AS54413US | FPKI-AS - General Services Administration | 768 | 2 | 5 |
| AS54803US | BT-AS-1 - Boys Town | 768 | — | 3 |
| AS401538US | NOVA86 - Nova86 | 768 | 6.3K | 13 |
| AS54321US | COMPUTEX - ENETSolutions L.L.C | 768 | — | 3 |
| AS394815US | CSW - Cinch Software, LLC | 768 | — | 3 |
| AS19186US | GMCHOSTING-01 - GMCHOSTING LLC | 768 | — | 3 |
| AS53699US | PANAMAX-ASN - Panamax Inc | 768 | — | 3 |
| AS26885US | QCC-IDC-ASN - Kaplan Higher Education Corporation | 768 | — | 3 |
| AS36145US | PHILLIPS-ACADEMY - Phillips Academy | 768 | — | 3 |
| AS11055US | MIDCONTINENT-COMMUNICATIONS - Midcontinent Communications | 768 | 349 | 19 |
| AS16429US | TGNA-WCSH - TEGNA Inc. | 768 | — | 3 |
| AS399082US | MOWINET-ASN - Mosier WiNet LLC | 768 | — | 3 |
| AS54145US | AUTH-SERVERS - auth-servers, LLC | 768 | — | 2 |
| AS15027US | FH-ASN-15027 - Foley Hoag LLP | 768 | — | 3 |
| AS14032US | FOOT-LOCKER-CORPORATE-SERVICES - Foot Locker Corporate Services, Inc | 768 | 1 | 4 |
| AS395515US | NEOSYSTEMSLLC-USA - NeoSystems LLC | 768 | 4 | 7 |
| AS23545US | CENTRICFL-ASN - Centric Fiber Florida, LLC | 768 | 65.5K | 4 |
| AS399034US | ASN-ENFOTECH-01 - enfoTech & Consulting Inc. | 768 | — | 3 |
| AS396173US | SWA-W11-MKT-INET - Southwest Airlines Co. | 768 | — | 3 |
| AS210015US | INTERFACEALL Interface Services LLC | 768 | 1 | 3 |
| AS36490US | OWENSCORNING - Owens-Corning | 768 | 8 | 4 |
| AS15229US | EDFTNA - EDF Trading North America, LLC | 768 | — | 3 |
| AS20139US | SSNC-MS - SS&C Technologies, Inc. | 768 | — | 3 |