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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| 4.4K |
| 65.5K |
| 23 |
| AS399469US | RELIABLE-NETS - Reliable Nets LLC | 4.4K | — | 2 |
| AS53684US | CWAS02 - Centre WISP Venture Company | 4.4K | — | 4 |
| AS23349US | FARMERS-NETWORK-WEST - Farmers Group, Inc. | 4.4K | — | 17 |
| AS54209US | MONON-TEL - Monon Telephone Company, Inc. | 4.4K | 65.5K | 5 |
| AS17303US | NETWORK-ADVISORS - Disaster Networks, LLC | 4.4K | 32.8K | 16 |
| AS10844US | VASTNET - Vastnet Corp | 4.4K | — | 4 |
| AS17242US | UNIPAC - UNIPAC Service Corporation | 4.4K | 256 | 18 |
| AS22077US | RENAISSANCE-TECH - Renaissance Technologies Corp. | 4.4K | — | 11 |
| AS14536US | ASN-SOL - sol.net Network Services | 4.4K | 17 | 4 |
| AS13917US | CORPWEST - Corporate West Computer Systems, Inc. | 4.4K | 65.5K | 3 |
| AS215724US | EDGEVANA-AS-RP Edgevana, Inc. | 4.4K | 256 | 18 |
| AS14926US | KYN-GTS - Kyndryl | 4.4K | — | 2 |
| AS7810US | CMPC - CompuCom Systems, Inc. | 4.4K | — | 2 |
| AS397347US | NORTH-AS1 - NorthfieldWiFi LLC | 4.4K | — | 5 |
| AS21660US | BAXALTA - Baxalta Incorporated | 4.4K | — | 11 |
| AS22324US | XTEL - XTEL Communications | 4.4K | — | 5 |
| AS18647US | ACCEL-AS - Accel Net, Inc. | 4.4K | — | 2 |
| AS394077US | LIFEBRIDGEHEALTH - Lifebridge Health, Inc. | 4.4K | — | 11 |
| AS397394US | GCBB - Gold Coast Broadband | 4.4K | — | 17 |
| AS13524US | ARROW-ELECTRONICS - Arrow Electronics | 4.4K | — | 15 |
| AS40885US | E2OPEN-1 - E2open LLC | 4.4K | 3 | 14 |
| AS19157US | CHARTER-19157-DC - Charter Communications LLC | 4.4K | — | 10 |
| AS30417US | BTIG-LLC - BTIG LLC | 4.4K | — | 14 |
| AS32331US | FIVEPOINT NETWORKS - FivePoint Networks, LLC | 4.4K | — | 5 |
| AS40819US | VPSDATACENTER - Liquid Web, L.L.C | 4.4K | 256 | 13 |
| AS17177US | RIVER-VALLEY-INTERNET - Greater Vision Microwave Networks LLC | 4.4K | 8.2K | 12 |
| AS254US | OPENTEXT - Attachmate Corp. | 4.4K | 1 | 9 |
| AS19600US | NCH-AS - Nationwide Children's Hospital | 4.4K | — | 2 |
| AS394396US | LISTRAK-AS1 - Listrak | 4.4K | — | 2 |
| AS18555US | THE-ART-INST - The Art Institute of Chicago | 4.4K | — | 2 |
| AS394468US | WAVE-WIRELESS-LLC - Wave Wireless LLC | 4.4K | — | 9 |
| AS16667US | MGMRI-AS - MGM Resorts International Operations, Inc. | 4.4K | — | 10 |
| AS46479US | PREFERRED-NETWORKS - Pyramid.Net | 4.4K | — | 5 |
| AS33650US | COMCAST-33650 - Comcast Cable Communications, LLC | 4.4K | 109 | 121 |
| AS13726US | APS-AS - Atlanta Public Schools | 4.4K | — | 2 |
| AS10457US | ILX-ASN - Refinitiv US LLC | 4.4K | — | 17 |
| AS32626US | HOUSTON-AREA-LIBRARY-AUTOMATED-NETWORK-HALAN - Houston Public Library | 4.4K | — | 2 |
| AS1406US | MOTOROLA-MOBILITY - Motorola Inc | 4.4K | — | 11 |
| AS19927US | NHMCCD - Lone Star College System District | 4.4K | — | 11 |
| AS55274US | CAESARS-ENTERTAINMENT - Caesars Entertainment Operating Company, Inc. | 4.4K | — | 2 |
| AS14274US | TENNESSEE-WIRELESS-LLC - TENNESSEE WIRELESS LLC | 4.4K | — | 2 |
| AS23102US | RMU-EDU - Robert Morris University | 4.4K | — | 2 |
| AS11278US | NINTENDO - Nintendo Of America inc. | 4.4K | 1 | 14 |
| AS396191US | ECHOBROADBAND - Echo Broadband, Inc | 4.4K | — | 4 |
| AS394140US | NATIVENETWORK-1 - Native Network | 4.4K | — | 11 |
| AS5982US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 4.4K | — | 2 |