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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. | 218M | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1.8K |
| — |
| 7 |
| AS395584US | PDC-BGP - Data Management | 1.8K | — | 4 |
| AS26710US | ICANN-ANYCASTED-SERVICES - ICANN | 1.8K | 6 | 13 |
| AS32165US | BCBSMA - Blue Cross and Blue Shield of Massachusetts, Inc. | 1.8K | — | 7 |
| AS11446US | LAKELAND-AS - Lakeland Community College | 1.8K | — | 4 |
| AS40126US | AS-MOLSONCOORS - Molson Coors Beverage Company | 1.8K | — | 4 |
| AS805US | GLOBELIFE-ASN-01 - Globe Life Inc. | 1.8K | — | 4 |
| AS16641US | 16641 - ACBB-BITS, LLC | 1.8K | — | 7 |
| AS14414US | CROSSBRDG-ASN01 - Telit IoT Platforms, LLC | 1.8K | — | 7 |
| AS32647US | CRUCIALWEBHOST - Crucial Web Hosting, Ltd. | 1.8K | — | 5 |
| AS12166US | OWC-NET - Other World Computing - OWC | 1.8K | — | 7 |
| AS17082US | SMART-CITY-MBCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.8K | — | 6 |
| AS27401US | KLD-MN-US - KLDiscovery Ontrack, LLC | 1.8K | — | 7 |
| AS22474US | SAINT-LUKES-HEALTH-SYSTEM-AS - Saint Luke's Health System | 1.8K | — | 4 |
| AS399726US | XTREAM-INTERNET-01 - XtreamInternet | 1.8K | 65.5K | 5 |
| AS396513US | COUNTY-OF-FRESNO - County of Fresno | 1.8K | — | 4 |
| AS203939US | MOSAIC - Mosaic Data Services, Inc. | 1.8K | 528.4K | 5 |
| AS53759US | VND - Visual Net Design LC | 1.8K | — | 3 |
| AS4503US | EGINTERLINK - Grady Memorial Hospital | 1.8K | — | 7 |
| AS39986US | GEORGE-FOX-UNIVERSITY - George Fox University | 1.8K | — | 7 |
| AS15123US | FBEMC-ASN - French Broad EMC | 1.8K | — | 7 |
| AS27529US | AS27529 - General Dynamics Information Technology, Inc. | 1.8K | — | 7 |
| AS400303US | SYLVESTER-1 - TruVista Communications | 1.8K | — | 4 |
| AS40391US | CHSINC - CHS COOPERATIVES FOUNDATION | 1.8K | — | 7 |
| AS397171US | GBP-01 - Green Bay Packaging, INC | 1.8K | — | 4 |
| AS400556US | LAGLESS-AS - Elcro Digital Services, LLC | 1.8K | — | 7 |
| AS36321US | CSTL - Castle Global Inc. | 1.8K | 1 | 6 |
| AS6286US | HEALTHWAYS - American Healthways Services, Inc. | 1.8K | — | 7 |
| AS26478US | NOVARTIS-PHARMA - Novartis Pharmaceuticals | 1.8K | — | 6 |
| AS18666US | NOKIA-ASN - Nokia of America Corporation | 1.8K | 8.3K | 8 |
| AS15209US | COMMVAULT - CommVault Systems | 1.8K | — | 4 |
| AS33365US | CINFIN-ASN-01 - Cincinnati Financial Corporation | 1.8K | — | 5 |
| AS5778US | CENTURYLINK-LEGACY-EMBARQ-RCMT - CenturyLink Communications, LLC | 1.8K | — | 7 |
| AS23219US | MICROCERV - MicroCerv | 1.8K | — | 3 |
| AS395073US | UMMC - University of Mississippi Medical Center | 1.8K | — | 7 |
| AS32091US | TRACF-AS - Tracfone Wireless | 1.8K | — | 4 |
| AS3783US | AIU-ALLEGHENY-CONNECT-RWAN - Allegheny Intermediate Unit | 1.8K | — | 7 |
| AS17330US | FIREEYE-AS - Trellix | 1.8K | 65.6K | 6 |
| AS399521US | BNS - BNS | 1.8K | 5 | 12 |
| AS395347US | GOBROLLYASN - Brolly Communications, Inc. | 1.8K | — | 4 |
| AS23088US | TBG - The Blackstone Group | 1.8K | — | 4 |
| AS53626US | CORUS360 - Corus360 | 1.8K | — | 4 |
| AS16871US | MCDONAGHBROTHERS - McDonagh Bros. Inc. | 1.8K | 1 | 7 |
| AS30311US | DWS-LON - Disney Worldwide Services, Inc. | 1.8K | — | 7 |
| AS47272US | HYEHOST - HYEHOST LLC | 1.8K | 13.4K | 24 |
| AS399628US | IMR-AS-01 - Internet Measurement Research | 1.8K | 7 | 14 |
| AS13656US | WORTHINGTONSTEEL - THE WORTHINGTON STEEL COMPANY | 1.8K | — | 7 |