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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. | 218.1M | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,202 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS401401US | UNREDACTED-NOISENET - Unredacted Inc | 256 | 1 | 2 |
| AS29785US | DACSIX-CENTRAL - DACS-IX | 256 | 65 | 6 |
| AS13967US | BUYSEASONS - Buyseasons, Inc. | 256 | — | 1 |
| AS22339US | UDBQ-1 - University of Dubuque | 256 | 258 | 4 |
| AS396530US | DCX-GOODYEAR1 - DCX Goodyear 1, LLC | 256 | — | 1 |
| AS55187US | AC-CHARTER-WINDTREAM - Assumption University | 256 | — | 1 |
| AS395646US | NEUTRAL-NETWORKS - Neutral Networks | 256 | 65.5K | 2 |
| AS6092US | HARFORDCC-AS - Harford Community College | 256 | — | 1 |
| AS398135US | NWNC - SKYWEB OF ILLINOIS, INC. | 256 | — | 1 |
| AS398093US | ADA-TECH-LLC - ADA Tech, LLC | 256 | — | 1 |
| AS33560US | LINCOLNINVESTMENTPLANNING - Lincoln Investment Planning, LLC. | 256 | — | 1 |
| AS26683US | DASH FT - BB - Dash Financial Technologies LLC | 256 | — | 1 |
| AS402220US | KIRKLAND-ELLIS-NV - Kirkland & Ellis LLP | 256 | — | 1 |
| AS394729US | NPIASN - NeoPollard Interactive LLC | 256 | — | 1 |
| AS53517US | ECOMATLANTIC - ECOM Atlantic, Inc. | 256 | — | 1 |
| AS399037US | FB-01 - FOCUS Brands | 256 | — | 1 |
| AS397176US | NBMC - New Bridge Medical Center | 256 | — | 1 |
| AS401782US | BOKU-ASN-01 - Boku, Inc. | 256 | — | 1 |
| AS11418US | LIGHTEDGE-AS-03 - LightEdge Solutions | 256 | 4.1K | 2 |
| AS393267US | ATCC - American Type Culture Collection | 256 | — | 1 |
| AS218652US | NIGHTCOIL-NETWORKS Nightcoil Networks LLC | 256 | 1 | 2 |
| AS399692US | TCAD - Travis Central Appraisal District | 256 | — | 1 |
| AS46080US | ORTHOALLIANCE - OrthoAlliance MSO, LLC | 256 | — | 1 |
| AS400273US | JSL-76-ASN - Johnstone Supply, LLC | 256 | — | 1 |
| AS397480US | NJ-JUDICIARY-AS-1 - State of New Jersey Judiciary | 256 | — | 1 |
| AS394250US | PDS-DC1 - Pacific Dental Services | 256 | — | 1 |
| AS21791US | HUNTSVILLE-MEMORIAL-HOSPITAL - HUNTSVILLE MEMORIAL HOSPITAL | 256 | — | 1 |
| AS23295US | NSWL-3-23295 - Northern Skies Wireless LLC | 256 | — | 1 |
| AS31854US | SAFETY-NATIONAL-CASUALTY-CORPORATION - Safety National Casualty Corporation | 256 | — | 1 |
| AS31786US | ZOOMINGWORK-LLC - PloxHost | 256 | 2 | 3 |
| AS399877US | SEAPINES-01 - Sea Pines Resort, LLC | 256 | — | 1 |
| AS46928US | ACADEMY-SPORTS-OUTDOORS - Academy Sports + Outdoors | 256 | — | 1 |
| AS12279US | LAYER-EIGHT - VertitechIT, Inc. | 256 | — | 1 |
| AS5068US | STACKSINC-GLOBAL - STACKS INC | 256 | 1 | 2 |
| AS393291US | KEMPER-DEVELOPMENT - Kemper Development Company | 256 | — | 1 |
| AS62803US | UTDAS01 - UPTODATE, Inc. | 256 | — | 1 |
| AS27412US | NCHE - American Council on Education | 256 | — | 1 |
| AS398653US | XLRYNT-01 - XLRYNT | 256 | — | 1 |
| AS12020US | MHSC-BGP-ASN - Methodist Hospital of Southern California | 256 | — | 1 |
| AS397861US | BROADWAVES - BROADWAVES COMMUNICATIONS | 256 | — | 1 |
| AS400326US | NETFIRE-NFFIBER01 - NetFire, LLC | 256 | 1 | 2 |
| AS18436US | MSPD-ASN - Mohegan Sun Pocono Downs | 256 | — | 1 |
| AS400466US | CCAP - County Commissioners Association of Pennsylvania | 256 | — | 1 |
| AS16676US | BARCHARTCOM - Barchart.com, Inc. | 256 | — | 1 |
| AS394857US | RVRWLK - Riverwalk Consulting LLC | 256 | 65 | 3 |
| AS215520US | JOSH-BOYD JOSHUA BOYD | 256 | 1 | 2 |