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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. | 211.2M | 21,189 |
| 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 |
| 228 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 372 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,936 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,378 |
| 1.8K |
| — |
| 4 |
| AS201665US | KSTNETWORKS Anonymizer, LLC | 1.8K | — | 7 |
| AS805US | GLOBELIFE-ASN-01 - Globe Life Inc. | 1.8K | — | 4 |
| AS32686US | SMART-CITY-RPCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.8K | — | 3 |
| AS63322US | PARLER-CLOUD - Parler Cloud | 1.8K | — | 6 |
| AS18666US | NOKIA-ASN - Nokia of America Corporation | 1.8K | 8.3K | 8 |
| AS40391US | CHSINC - CHS COOPERATIVES FOUNDATION | 1.8K | — | 7 |
| AS15182US | ALE-NAR-CALI-RD-01 - ALE USA Inc. | 1.8K | — | 7 |
| AS14521US | PACIFIC-LIFE - Pacific Life Insurance Company | 1.8K | — | 7 |
| AS397886US | SUPERNET - SUPERNet | 1.8K | — | 4 |
| AS399449US | KYNDRYL-POP-ASN - Kyndryl | 1.8K | — | 7 |
| AS394581US | BLUESPAN - Bluespan Wireless, LLC | 1.8K | — | 7 |
| AS46155US | DEERFIELD-ACADEMY - Deerfield Academy | 1.8K | — | 7 |
| AS397966US | READYDEDISLLC - ReadyDedis, LLC | 1.8K | — | 7 |
| AS62560US | HOSTED-AMERICA - Hosted America | 1.8K | — | 6 |
| AS399726US | XTREAM-INTERNET-01 - XtreamInternet | 1.8K | 65.5K | 5 |
| AS36464US | RABO-NA-BGP01 - Rabo Support Services, Inc. | 1.8K | — | 5 |
| AS26541US | GUAVA-AS - GuavaTech Inc. | 1.8K | — | 6 |
| AS26710US | ICANN-ANYCASTED-SERVICES - ICANN | 1.8K | 6 | 13 |
| AS395519US | AS-CTCHILDRENS - Connecticut Children's Medical Center | 1.8K | — | 4 |
| AS399654US | 360-NETWORKS - 360 Networks | 1.8K | — | 7 |
| AS394855US | STRATUS-VIDEO - Stratus Video, LLC | 1.8K | 2 | 7 |
| AS397847US | FLEX-SPF - Flextronics International USA, Inc. | 1.8K | — | 4 |
| AS27529US | AS27529 - General Dynamics Information Technology, Inc. | 1.8K | — | 7 |
| AS32647US | CRUCIALWEBHOST - Crucial Web Hosting, Ltd. | 1.8K | — | 5 |
| AS22024US | SPLUNK-WEST - Splunk, Inc. | 1.8K | 1 | 8 |
| AS55236US | CBC - CBC | 1.8K | 65.5K | 7 |
| AS400303US | SYLVESTER-1 - TruVista Communications | 1.8K | 65.5K | 5 |
| AS63066US | 7HOOPNETWORK - 7Hoop Network Telecom, LLC | 1.8K | 4.1K | 5 |
| AS36321US | CSTL - Castle Global Inc. | 1.8K | 1 | 6 |
| AS15209US | COMMVAULT - CommVault Systems | 1.8K | — | 4 |
| AS11446US | LAKELAND-AS - Lakeland Community College | 1.8K | — | 4 |
| AS26478US | NOVARTIS-PHARMA - Novartis Pharmaceuticals | 1.8K | — | 6 |
| AS27321US | ISC-F-AS - Internet Systems Consortium, Inc. | 1.8K | 1 | 8 |
| AS55096US | CANYON - CANYON PARTNERS LLC | 1.8K | — | 7 |
| AS6524US | OPENTEXT-NA-US-BROOKPARK-2 - GXS | 1.8K | — | 7 |
| AS53985US | DODGE-AND-COX-FUNDS - DODGE & COX | 1.8K | — | 7 |
| AS397743US | PAYG - PAYG, LLC | 1.8K | — | 7 |
| AS396513US | COUNTY-OF-FRESNO - County of Fresno | 1.8K | — | 4 |
| AS40799US | LOOMIS - Loomis Armored US, LLC | 1.8K | — | 6 |
| AS14137US | AICW - America Internet & Communications | 1.8K | — | 6 |
| AS54840US | UWM - United Wholesale Mortgage, LLC | 1.8K | — | 4 |
| AS19142US | AAFES-NETBLK-ASN - Army & Air Force Exchange Service | 1.8K | — | 7 |
| AS15123US | FBEMC-ASN - French Broad EMC | 1.8K | — | 7 |
| AS400229US | ELEKTRAFI - ELEKTRAFI INC. | 1.8K | — | 7 |
| AS203939US | MOSAIC - Mosaic Data Services, Inc. | 1.8K | 528.4K | 5 |
| AS17043US | AERIS-SJC-BGPNET - Aeris Communications, Inc. | 1.8K | — | 7 |