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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 | 3,136 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.5M | 20,721 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | 73.1M | 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC |
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.
| 68.3M |
| 366 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 66.4M | 1,106 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 47.9M | 3,574 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,926 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.2M | 4,508 |
| RHODESCOLLEGE - Rhodes College |
| — |
| — |
| 0 |
| AS394190US | CENTURYLINK-LEGACY-QWEST-WIRELESS-BACKUP - CenturyLink Communications, LLC | — | — | 0 |
| AS3000US | SPRINT-MRN-BLOCK - U.S. Sprint | — | 16.4K | 1 |
| AS8098US | IFN - Internet Financial Group | — | — | 0 |
| AS393728US | WSMEDIA - World Streamedia Inc. | — | — | 0 |
| AS395496US | MICROSOFT-CORP-AS-BLOCK-MSIT3 - Microsoft Corporation | — | — | 0 |
| AS395469US | FINDLAY-AUTOMOTIVE - Findlay | — | — | 0 |
| AS1434US | DWIM-590 - DW Partners, LP | — | — | 0 |
| AS399155US | SECURITYSERVICES - Vercara, LLC | — | 256 | 1 |
| AS394909US | TALEND-ASN - Talend Inc. | — | — | 0 |
| AS216052US | CDUBS-NET Craig Schulz | — | 34 | 4 |
| AS7113US | NFIC-AS - New Frontiers Information Corp. | — | — | 0 |
| AS13644US | TMO-METRO - T-Mobile USA, Inc. | — | — | 0 |
| AS12197US | DRUGSTORE-COM - Drugstore.Com, Inc. | — | — | 0 |
| AS12032US | PSJAISD - Pharr-San Juan-Alamo ISD | — | — | 0 |
| AS396874US | JAMF - JAMF | — | 1 | 1 |
| AS13881US | CIIS - California Institute of Integral Studies | — | — | 0 |
| AS11536US | SRC-ASN01 - Sunrise Communications LLC | — | — | 0 |
| AS14215US | SABRE-HOLDINGS-CORPORATION - Sabre GLBL Inc. | — | — | 0 |
| AS14185US | CBSK - CABLE ONE, INC. | — | — | 0 |
| AS13507US | KMARTCORPORATION - Sears Holdings Corporation | — | — | 0 |
| AS12108US | PROFITDEV - PROFIT DEVELOPERS INC | — | — | 0 |
| AS13425US | JUNO-DC-1 - Juno Online Services, Inc. | — | — | 0 |
| AS399154US | SECURITYSERVICES - Vercara, LLC | — | 256 | 1 |
| AS4526US | ARMY-FMO - Dod Joint Spectrum Center | — | — | 0 |
| AS4101US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4067US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4056US | LASC-USAF - Lockheed Aeronautical Systems Company | — | — | 0 |
| AS3764US | IA-HOU-AS - JAB Wireless, INC. | — | — | 0 |
| AS3827US | ELECTRICITI - Electriciti | — | — | 0 |
| AS14502US | PADUCAH-LOUISVILLE-RAILWAY-CORP - Paducah & Louisville Railway, Inc. | — | — | 0 |
| AS7929US | WETWARE - Wetware Services | — | — | 0 |
| AS11413US | IHERB-AS-IHERB-NETWORKS - IHERB INC | — | — | 0 |
| AS7882US | SPRINT-HAWAII - Sprint Hawaii | — | — | 0 |
| AS36262US | HASHTABLE-PREMIUM-TIER - HashTable, Inc. | — | 4 | 4 |
| AS14620US | ITALK - iTalk Global Communications, Inc. | — | — | 0 |
| AS14910US | CENTURYLINK-LEGACY-EMBARQ-PLYMOUTH - CenturyLink Communications, LLC | — | — | 0 |
| AS14716US | ASTREA-CCI-LAB - Lighthouse.net | — | — | 0 |
| AS6043US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | 1 | 1 |
| AS399711US | SPLISHCO - Splish Co., LLC | — | — | 0 |
| AS5980US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | 1 | 1 |
| AS14294US | 8X8-FUZE - 8x8, Inc. | — | — | 0 |
| AS55126US | HPDF-JLAB - High Performance Data Facility | — | 1 | 1 |
| AS4068US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS14251US | MLSLI - Multiple Lising Service of Long Island, Inc. | — | — | 0 |
| AS16448US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16387US | HEALTHYDIRECTIONS - Healthy Directions, LLC | — | — | 0 |