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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 | 3,140 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,178 |
| 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 | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,946 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,371 |
| 768 |
| — |
| 3 |
| AS18550US | FARCAP-AS - Farallon Capital Management LLC | 768 | — | 3 |
| AS394046US | JWKFO - JELD WEN | 768 | — | 3 |
| AS12012US | NOV-NET-02 - Novani, LLC | 768 | — | 3 |
| AS13620US | EMBLEMHEALTH - EMBLEMHEALTH SERVICES COMPANY, LLC | 768 | — | 3 |
| AS33636US | WOFFORD-COLLEGE - Wofford College | 768 | — | 3 |
| AS395558US | GSCOMPUTING - Garden State Computing LLC | 768 | 65.5K | 4 |
| AS399009US | FACHQINTERNET - FANUC America Corporation | 768 | — | 2 |
| AS206846US | ZINGAYA-AS Voximplant, Inc. | 768 | — | 3 |
| AS16639US | IRONBOW-ASN - Iron Bow Technologies, LLC | 768 | — | 3 |
| AS54153US | LACMTA-ASN - Los Angeles County Metropolitan Transportation Authority | 768 | — | 3 |
| AS30260US | NOBEL-129-30260 - NobelBiz, Inc. | 768 | — | 2 |
| AS393233US | VENTIVTECH - Ventiv Technology Inc. | 768 | — | 3 |
| AS400846US | TAMPA-COLO-ASN-PRIMARY - Tampa Co-Op | 768 | 257 | 4 |
| AS16657US | CROWNCASTLE-AS16657 - Crown Castle Fiber LLC | 768 | — | 3 |
| AS14632US | BIA30ASN - Brown Advisory | 768 | — | 3 |
| AS26446US | AS-OSTRA - Ostra Cybersecurity, Inc. | 768 | — | 2 |
| AS395832US | IPRO-DA7 - IPro Media, Inc. | 768 | — | 3 |
| AS401846US | SUZKO - SUZKO LLC | 768 | — | 3 |
| AS400908US | XSTREAM-CABLE-TV - Videoport IPTV LLC | 768 | — | 3 |
| AS400167US | NORTHERN-WIRELESS - Northern Wireless | 768 | 256 | 3 |
| AS35947US | THRIVE-CA1 - Thrive Operations, LLC | 768 | — | 3 |
| AS26086US | BESTBUY-2 - Best Buy Co., Inc. | 768 | — | 3 |
| AS394748US | CITYOFFORTCOLLINS - City of Fort Collins | 768 | — | 3 |
| AS23284US | COMPL-AS - Complete Genomics Inc. | 768 | — | 3 |
| AS398026US | INDIANAPOLIS-AIRPORT-AUTHORITY - Indianapolis Airport Authority | 768 | — | 3 |
| AS395942US | PODS-CORP - PODS Enterprises, LLC | 768 | — | 3 |
| AS12131US | VC-AS-02 - Vertical Computers | 768 | 131.1K | 5 |
| AS29986US | GOLDLASSO-AS - Gold Lasso, Inc. | 768 | — | 2 |
| AS396544US | VRSN-AC50-340 - VeriSign Global Registry Services | 768 | — | 3 |
| AS395165US | MT-NETWORKS - Madison Telephone LLC | 768 | — | 3 |
| AS395868US | FBISD-ASNONE - Fort Bend Independent School District | 768 | — | 3 |
| AS399372US | JNET - Pueblo of Jemez | 768 | — | 3 |
| AS211577US | ZERSNETLLC ZERSNET LLC | 768 | — | 3 |
| AS14778US | YAHOO - Yahoo Holdings Inc. | 768 | 7 | 10 |
| AS36393US | PFELJ - Pfizer Inc. | 768 | — | 2 |
| AS62614US | NETWOLVES-NETWORK-SERVICES - NetWolves Network Services LLC | 768 | — | 3 |
| AS11804US | AMVDM - All Mobile Video Inc | 768 | — | 3 |
| AS396145US | EXACTSCIENCES - Exact Sciences Corporation | 768 | — | 3 |
| AS46385US | PNAP-SE3 - PhoenixNAP LLC | 768 | 257 | 5 |
| AS401233US | ALLIANCE-BROADBAND - Alliance Broadband | 768 | — | 2 |
| AS393962US | BLC-ASN-01 - Baillie Lumber Co., L.P. | 768 | — | 3 |
| AS401626US | NETIFACE-TORONTO - Netiface America, Inc. | 768 | — | 3 |
| AS53596US | CBOE - Cboe | 768 | — | 3 |
| AS11679US | STIHL-204-124-67 - Stihl Inc. | 768 | — | 3 |
| AS393852US | SOFI - Hollywood Park Management Co, LLC | 768 | — | 3 |
| AS32850US | CLARITEV-VA - Claritev Corporation | 768 | — | 3 |