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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 | 21,174 |
| 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 | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,940 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,379 |
| 1.3K |
| — |
| 4 |
| AS31902US | OTS - Open Technology Solutions, LLC | 1.3K | — | 5 |
| AS3073US | CITI7 - Citigroup Inc. | 1.3K | — | 5 |
| AS400210US | WACO-WIFI-LLC - Waco Wifi llc | 1.3K | 65.5K | 4 |
| AS18674US | FROST-BANK - Frost Bank | 1.3K | — | 5 |
| AS395363US | INFOBLOX-1 - Infoblox, Inc. | 1.3K | 5 | 10 |
| AS55265US | VITAS-HOSPICE-SMY-SCOTTS - Vitas Healthcare Corporation | 1.3K | — | 4 |
| AS32256US | CYBERLINKASP - CYBERLINK USA | 1.3K | — | 5 |
| AS400975US | CNMEC-001 - Central New Mexico Electric Cooperative, Inc. | 1.3K | 69.6K | 4 |
| AS54714US | SECGLOBE - Secure Global Solutions LLC | 1.3K | — | 5 |
| AS62476US | DANC - Development Authority of the North Country | 1.3K | — | 3 |
| AS13916US | PROOFPOINT-UT7 - Proofpoint, Inc. | 1.3K | 3 | 7 |
| AS30485US | NASCAR-CLT-PROD - NASCAR Holdings, LLC | 1.3K | — | 2 |
| AS54559US | ALGH-DCS - COUNTY OF ALLEGHENY | 1.3K | — | 4 |
| AS54056US | PCA-AS - Packaging Corporation of America | 1.3K | — | 5 |
| AS19403US | SPIRIT-AEROSYSTEMS - Spirit AeroSystems, Inc | 1.3K | — | 4 |
| AS33593US | HARRIS-BANK - Harris Trust & Savings Bank | 1.3K | — | 5 |
| AS394887US | MONETRA-AS - Monetra Technologies LLC | 1.3K | 4 | 9 |
| AS399668US | E-PLANNING-US - e-planning | 1.3K | 2 | 6 |
| AS22866US | AECOM-USPHX3 - AECOM | 1.3K | — | 4 |
| AS20091US | MARTINSVILLE-VA - City of Martinsville, VA | 1.3K | — | 5 |
| AS396283US | ASXBAR7 - Xbar7 Communications, LLC | 1.3K | — | 2 |
| AS36475US | ZACKS-AS-1 - Zacks Investment Research Inc. | 1.3K | — | 4 |
| AS13434US | CORVELCORP - CORVEL CORPORATION | 1.3K | — | 4 |
| AS32771US | DNSIMPLE - DNSimple Corporation | 1.3K | 9 | 14 |
| AS53368US | AUSTIN-ENERGY-01 - Austin Energy Corporation | 1.3K | — | 2 |
| AS18745US | CWPS-WDC - CWPS | 1.3K | — | 5 |
| AS33358US | AE-CORPORATE-SERVICES-CO - AE CORPORATE SERVICES CO | 1.3K | — | 4 |
| AS13410US | MSTRARIN-1 - Microstrategy, Inc. | 1.3K | — | 5 |
| AS400585US | MBI-ASN01 - Michael Baker International, Inc. | 1.3K | — | 5 |
| AS1638US | MCC-CAMPUS - Mott Community College | 1.3K | — | 2 |
| AS14556US | PTC - Pilot Travel Centers, LLC | 1.3K | — | 5 |
| AS54845US | PHX-DATACENTER - Crexendo Business Solutions, Inc. | 1.3K | — | 5 |
| AS398260US | ENERMUSCLE-ASN - Alternative Internet Resources | 1.3K | — | 5 |
| AS11296US | INDEPENDENT-HEALTH - Independent Health Association, Inc. | 1.3K | — | 2 |
| AS36838US | INFOIMAGE - INFOIMAGE OF CALIFORNIA | 1.3K | — | 5 |
| AS40042US | SUFFOLK-COUNTY-GOVERNMENT - Suffolk County Government | 1.3K | — | 4 |
| AS32161US | CCBILL-ASN2 - CCBill | 1.3K | — | 3 |
| AS11713US | GBGDC-IP1 - Granite Block Global Data Center, Inc | 1.3K | — | 5 |
| AS393312US | TFX-ASN - TELEFLEX INCORPORATED | 1.3K | — | 4 |
| AS13580US | SOUTHERN-NETWORK-SERVICES - Parish Broadband | 1.3K | 65.5K | 3 |
| AS62467US | TXNET - TXNet Communications LLC | 1.3K | 2.3K | 9 |
| AS22208US | CTC-AS - Chicago Trading Company | 1.3K | 65.8K | 8 |
| AS396021US | COMCAST-MES - Comcast Cable Communications, LLC | 1.3K | — | 4 |
| AS23077US | SPICA - SPICA Industry LLC | 1.3K | 272 | 4 |
| AS394470US | ECLOUD360 - Ecloud360 | 1.3K | 1 | 5 |
| AS923US | HWS - Aconite Systems LLC | 1.3K | 2 | 4 |