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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.3M | 21,277 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 | 3,722 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,955 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,298 |
| — |
| — |
| 0 |
| AS397890US | BETTER-ASN-01 - Betterment | — | — | 0 |
| AS398137US | TRIAD-WIRELESS - Triad Wireless, LLC | — | — | 0 |
| AS398167US | CONFLUENT-IO - Confluent Incorporated | — | — | 0 |
| AS398379US | NILES-OFFICES - Warner Management Co, Ltd | — | — | 0 |
| AS398454US | DACSIX-WEST - DACS-IX | — | — | 0 |
| AS398468US | VMSNETWORKS - VMS Networks LLC | — | — | 0 |
| AS398489US | GT-BGPAS-01 - GRANT THORNTON LLP | — | — | 0 |
| AS398490US | TALLEY-TECHNICAL-SERVICES - Nextlink Broadband | — | — | 0 |
| AS398533US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398553US | WES-ASN-01 - Western Midstream Operating, LP | — | — | 0 |
| AS398562US | SHAM-ENTERPRISES - Sham Enterprises | — | — | 0 |
| AS398579US | FS-01 - Froedtert South, Inc. | — | — | 0 |
| AS398582US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398585US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398586US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398596US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398609US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398617US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398652US | JKMOVING-STORAGE - J K MOVING & STORAGE, INC. | — | — | 0 |
| AS398660US | MICROSOFT-AZURE-DEDICATED - Microsoft Corporation | — | — | 0 |
| AS398675US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398769US | GEORGIA-MILITARY-COLLEGE - Georgia Military College | — | — | 0 |
| AS398792US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS398882US | MIDSTATE-NETWORKS - Midstate Networks, LLC | — | — | 0 |
| AS399021US | WEBPHASE - WebPhase | — | — | 0 |
| AS399097US | SKYSILK-DTLA-01 - Skysilk | — | — | 0 |
| AS399136US | QL-ASN - QUADIX LLC | — | — | 0 |
| AS399160US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS399180US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS399237US | GRAIL-INC-ASN - Grail, Inc. | — | — | 0 |
| AS399425US | CONSUMERS-CREDIT-UNION - Consumers Credit Union | — | — | 0 |
| AS399459US | BAIRD-CLOUD - Robert W. Baird & Co. Incorporated | — | — | 0 |
| AS399538US | RPVIEW-RESEARCH - DataPlane.org | — | — | 0 |
| AS399550US | OMNI-NETWORKS - Omniome Inc. | — | — | 0 |
| AS399560US | CPT - Castle Point Technologies, Inc | — | — | 0 |
| AS399576US | GAC-ATL-DC - Gulfstream Aerospace Corporation | — | — | 0 |
| AS399588US | PDINC-HQDC-01 - PD Inc | — | — | 0 |
| AS399609US | KISSUSA-LA - KISS NAIL PRODUCTS, INC | — | — | 0 |
| AS399637US | DEN-IRV-ASN - Denny's, Inc. | — | — | 0 |
| AS399720US | IMT-PRIMARY-01 - Integrated Marketing Technologies, Inc. | — | — | 0 |
| AS399857US | CITY-SOUTH-CHARLESTON-WV - City of South Charleston | — | — | 0 |
| AS399901US | PBN-18-399901 - PIN Business Network, Inc. | — | — | 0 |
| AS399982US | ABRIA-AS-02 - AbriaCloud Technologies | — | — | 0 |
| AS400021US | BARNHART-ASN - Barnhart Crane and Rigging Co. | — | — | 0 |
| AS400174US | ATLAS-BROADBAND-01 - Atlas Broadband | — | — | 0 |
| AS400192US | WAVSPEED - WavSpeed Incorporated | — | — | 0 |