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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 | 3,135 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,289 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,267 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,731 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,972 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| — |
| — |
| 0 |
| AS40247US | GILBERT-HEINTZ-RANDOLPH - Gilbert LLP | — | — | 0 |
| AS40314US | VIASAT-3 - ViaSat,Inc. | — | — | 0 |
| AS40396US | FLORI-18 - OTI Fiber LLC | — | — | 0 |
| AS40431US | TRAVAIL-SYSTEMS - ColocateUSA | — | — | 0 |
| AS40452US | BT-RADIANZ-MPLS-EXTRANET - BT Americas, Inc | — | — | 0 |
| AS40462US | AGILYNC-CORPORATION - Agilync Corporation | — | — | 0 |
| AS40512US | LIVINGSOCIAL - LivingSocial, Inc. | — | — | 0 |
| AS40571US | MAYA-MOBILE - Maya Virtual, Inc. | — | — | 0 |
| AS40603US | INFOWEST-40603 - InfoWest | — | — | 0 |
| AS40613US | CROWNCASTLE-AS40613 - Crown Castle Fiber LLC | — | — | 0 |
| AS40670US | VOLUSION - Volusion | — | — | 0 |
| AS40750US | KHJ-FIRST - Nexus Technologies, LLC | — | — | 0 |
| AS40765US | BARTLETTANDCO - Bartlett & Co. | — | — | 0 |
| AS40826US | BLUESTARENERGY-BGP - AEP Energy, Inc. | — | — | 0 |
| AS40869US | GMO-HF - Grantham, Mayo, VanOtterloo & Co. LLC | — | — | 0 |
| AS40881US | FISPE-ASN - Fispe Inc. | — | — | 0 |
| AS40900US | NTHL - NETWORK TRANSIT HOLDINGS LLC | — | — | 0 |
| AS40922US | WCG-CLINICAL - WCG CLINICAL, INC. | — | — | 0 |
| AS42210US | HOSTVIRTUAL-AS NetActuate Inc | — | — | 0 |
| AS46126US | CATAS - Catterton Management Company LLC | — | — | 0 |
| AS46174US | IMPREZZIO-LLIX - Imprezzio Inc | — | — | 0 |
| AS46250US | DT-DR - Dealertrack, Inc. | — | — | 0 |
| AS46327US | ATC-NYC - ATC Group Services, Inc. | — | — | 0 |
| AS46417US | BAKER-OWOSSO - Baker College | — | — | 0 |
| AS46441US | SUTTERHEALTH - Sutter Health | — | — | 0 |
| AS46535US | TECHSMITH - TechSmith Corporation | — | — | 0 |
| AS46544US | FISHER-AS-EXT - Fisher Investments Inc. | — | — | 0 |
| AS46582US | IT-MOTHERSHIP - IT Mothership | — | — | 0 |
| AS46583US | VTI-NET - Visionary Technologies Inc. | — | — | 0 |
| AS46647US | COASTAL-LINK - Coastal-link Communications LLC | — | — | 0 |
| AS46683US | MI-TECH - MI TECH SALES | — | — | 0 |
| AS46693US | LOKKET-INC - Lokket, Inc. | — | — | 0 |
| AS46912US | COINST-SEA - Coinstar | — | — | 0 |
| AS46933US | DNL-53-46933 - Disaster Networks, LLC | — | — | 0 |
| AS46934US | NU-CHI - Market Track LLC | — | — | 0 |
| AS46938US | MEMX-OPTIONS - MEMX | — | — | 0 |
| AS46947US | JSSB - Jersey Shore State Bank | — | — | 0 |
| AS46950US | TRULIA - Trulia Inc | — | — | 0 |
| AS46958US | FRTIB-NET - Federal Retirement Thrift Investment Board | — | — | 0 |
| AS46992US | COREWEAVE-CUSTOMER - CoreWeave, Inc | — | — | 0 |
| AS47034US | TRUELOGIC - Litera | — | — | 0 |
| AS47081US | INET-MONTEREY - CITY OF MONTEREY | — | — | 0 |
| AS53281US | ASN-AHEAD - Computer Design & Integration LLC | — | — | 0 |
| AS53330US | MCKINSEY-US-COMX - Mckinsey & Company | — | — | 0 |
| AS53386US | APPFOLIO-1 - AppFolio, Inc. | — | — | 0 |
| AS53430US | AMERINET-GPO - Vizient, Inc. | — | — | 0 |