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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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 | 24,630 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,219 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 | 3,891 |
| 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 |
| AS393469US | LANERMC - Lane Regional Medical Center | 256 | — | 1 |
| AS15059US | CENLAR-FSB-2020 - Cenlar FSB | 256 | — | 1 |
| AS11444US | ISHK-NTK - Neuteck LLC | 256 | — | 1 |
| AS402600US | UN9 - UN9 | 256 | 1 | 2 |
| AS12058US | HOTELS-LON - EXPEDIA, INC | 256 | — | 1 |
| AS26009US | CALIFORNIA-CREDIT-UNION - California Credit Union | 256 | — | 1 |
| AS19307US | MONTG-47-AS - Water Works & Sanitary Sewer Board of the City of Montgomery | 256 | — | 1 |
| AS393811US | VDMS-US1 - Visual Data Media Services | 256 | — | 1 |
| AS22880US | PRIMED-HPMG - PRIMED MANAGEMENT CONSULTING INC | 256 | — | 1 |
| AS19909US | DAYLIGHT - Daylight Transport, LLC | 256 | — | 1 |
| AS25732US | TOTALCARDINC - Total Card, Inc. | 256 | — | 1 |
| AS19846US | UNION-COLLEGE - Union College | 256 | — | 1 |
| AS33128US | APOG-TOW - Apogee Telecom Inc. | 256 | — | 1 |
| AS393671US | WABHM - Warren Averett, LLC | 256 | — | 1 |
| AS50414US | CodeBGP-Monitor ThousandEyes LLC | 256 | 3 | 4 |
| AS219330US | ADT-ANYCAST-DNS ADTELLIGENT INC. | 256 | — | 1 |
| AS397953US | ALVIN-ISD-01 - Alvin Independent School District | 256 | — | 1 |
| AS26066US | NVUSD - Napa Valley Unified School District | 256 | — | 1 |
| AS400489US | DOMICILIUM - DOMICILIUM HOLDINGS INCORPORATED | 256 | — | 1 |
| AS30014US | EDF-RE-MONTREAL - EDF Renewables, Inc. | 256 | — | 1 |
| AS39115US | NTTGN-NET-VFRPAR1 NTT Global Networks Incorporated | 256 | — | 1 |
| AS29924US | CC-WIRELESS - Cedar Creek Wireless, LLC | 256 | — | 1 |
| AS400760US | ACCESSON-NETWORKS-INC - AccessOn Networks, Inc. | 256 | 65.5K | 2 |
| AS14660US | ELEVATED-NY - Elevated Computing LLC | 256 | — | 1 |
| AS22731US | MTB - Manufacturers and Traders Trust Company | 256 | — | 1 |
| AS14505US | ISLC - ISLC, Inc. | 256 | — | 1 |
| AS13862US | NCSU-SNARE - North Carolina State University | 256 | — | 1 |
| AS36477US | METHODIST-HEALTH-SYSTEM - Methodist Health System | 256 | — | 1 |
| AS393287US | ASN-LEASETEAM - LTi Technology Solutions, Inc. | 256 | — | 1 |
| AS1387US | ANSBB-ASNNET-2 - Verizon Business | 256 | 1 | 2 |
| AS7136US | LATINO - Latino Communications Corporation | 256 | — | 1 |
| AS15303US | NIKE-SECURITIES - First Trust Portfolios L.P. | 256 | — | 1 |
| AS22124US | FINNEGANBGP - Finnegan, Henderson, Farabow, Garrett &Dunner, LLP | 256 | — | 1 |
| AS394523US | HILLNET - The Hill School | 256 | — | 1 |
| AS19474US | ORGANIC-VALLEY - Organic Valley | 256 | — | 1 |
| AS40053US | BIOWAREULCEDMONTON - Electronic Arts, Inc. | 256 | — | 1 |
| AS18691US | ASN-BN-ARVADA - Barber-Nichols, LLC | 256 | — | 1 |
| AS394987US | SSC-AS1 - Southern States Cooperative, Inc. | 256 | — | 1 |
| AS11462US | ARAMARK-CA-TORHQ - ARAMARK | 256 | — | 1 |
| AS399653US | CCAA-AS-2021 - Charleston County Aviation Authority | 256 | — | 1 |
| AS22058US | SUMMIT-VOICE - Summit Voice LLC | 256 | 4.1K | 2 |
| AS393871US | HAVAS-USA-E-DC - Havas Health, Inc. | 256 | — | 1 |
| AS40896US | CLOUDIGITAL - ClouDigital, LLC | 256 | 11 | 12 |
| AS36739US | COLLIER-COUNTY-GOVERNMENT-BCC - Collier County Government | 256 | — | 1 |
| AS25652US | AS-SHCFCU - InRoads Federal Credit Union | 256 | — | 1 |
| AS397089US | USORD - EXPEDIA, INC | 256 | — | 1 |