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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,372 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,235 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,275 |
| DRMSCPASN - Northland Communications |
| 53.5K |
| 65.5K |
| 112 |
| AS15083US | INFOLINK-MIA-US - Infolink Global Corporation | 53.8K | 65.5K | 61 |
| AS11293US | UCOP-ASN - University of California - Office of the President | 53.8K | — | 19 |
| AS11985US | ASN-SSA - Social Security Administration | 53.8K | 1.8K | 17 |
| AS17307US | VIRTELA-1 - NTT Global Networks Incorporated | 54K | — | 11 |
| AS31775US | GREENLIGHT-NETWORKS - Greenlight Networks, LLC | 54.3K | 37.2K | 281 |
| AS7341US | VELOCITY - Velocity Network, Inc. | 54.3K | — | 7 |
| AS6075US | LM-CORP - Lockheed Martin Corporation | 54.5K | — | 187 |
| AS36374US | STELLAR-ASSOCIATION - Stellar Association, LLC | 54.8K | 65.5K | 18 |
| AS1501US | DNIC-ASBLK-01500-01502 - Headquarters, USAISC | 54.8K | — | 149 |
| AS22611US | INMOTION - InMotion Hosting, Inc. | 54.8K | 6 | 87 |
| AS15305US | SYRINGANETWORKS - Syringa Networks, LLC | 55K | 81.9K | 29 |
| AS33387US | NOCIX - Nocix, LLC | 55K | 65.6K | 28 |
| AS13638US | METALINK - Metalink Technologies, Inc. | 55.3K | 65.5K | 87 |
| AS29852US | HONEST - Honest Networks, LLC | 55.3K | — | 33 |
| AS3606US | CONNCOLL-AS - Connecticut College | 55.6K | — | 10 |
| AS400337US | ASN-NHB - NH Broadband, LLC | 55.6K | 65.5K | 31 |
| AS12086US | DT-MICRO - DT Micro, inc. | 56.1K | — | 111 |
| AS63394US | EIDG-AS1 - Eastern Iowa IP, LLC | 56.1K | 131.1K | 99 |
| AS2707US | FIRSTCOMM-AS1 - First Communications LLC | 56.3K | 28.7K | 21 |
| AS11904US | ATOM-MI-53-198 - AcenTek | 56.3K | 4.6K | 35 |
| AS22343US | VONAGE-BUSINESS - Vonage Business Inc. | 56.3K | 66.6K | 57 |
| AS17253US | TEC-OF-JACKSON-INC - TEC of Jackson, Inc. | 56.3K | 65.5K | 23 |
| AS3573US | ACCENTURE - Accenture LLP | 56.6K | 329.3K | 470 |
| AS6653US | VERO-NETWORKS-AS6653 - Vero Broadband | 56.6K | 65.5K | 45 |
| AS14291US | ANTIETAM - Antietam Broadband | 56.8K | — | 28 |
| AS2559US | VISANET-1 - VISA INTERNATIONAL SERVICE ASSOCIATION | 56.8K | — | 63 |
| AS11452US | MOUNT-SINAI - Mount Sinai School of Medicine | 57.1K | — | 14 |
| AS32093US | TACCNET - University of Texas at Austin | 57.3K | 256 | 4 |
| AS919US | AS919 - The Howard University | 57.3K | — | 8 |
| AS402224US | MERCEDCOUNTY-ASN-1 - Merced County Information Systems | 57.3K | — | 3 |
| AS395776US | FEDERAL-ONLINE-GROUP-LLC - FEDERAL ONLINE GROUP LLC | 57.3K | — | 224 |
| AS14744US | INTERNAP-BLOCK-4 - Unitas Global | 57.6K | 65.5K | 37 |
| AS397112US | ILLINOIS-MATH-SCIENCE - Illinois Mathematics and Science Academy | 58.1K | — | 6 |
| AS14956US | ROUTERHOSTING - RouterHosting LLC | 58.4K | 19 | 173 |
| AS14742US | INTERNAP-BLOCK-4 - Unitas Global | 58.4K | 65.5K | 30 |
| AS7393US | CYBERCON - CYBERCON, INC. | 58.6K | 65.5K | 142 |
| AS10372US | WELLSFARGO-10372-10376 - Wells Fargo Bank, N.A. | 58.6K | — | 104 |
| AS40933US | TRIANGLE-COMMUNICATIONS - Triangle Communications | 58.9K | — | 142 |
| AS13825US | TROYCABLE-NET - Troy Cablevision, Inc. | 58.9K | — | 12 |
| AS4927US | IMPU - Aseva LLC | 58.9K | 69.6K | 12 |
| AS40244US | TURNKEY-INTERNET - Turnkey Internet Inc. | 59.1K | 66.3K | 49 |
| AS32953US | MHCV-AS1 - Mid-Hudson Cablevision, Inc. | 59.1K | 1M | 11 |
| AS14828US | HBCI-1999TA - Hiawatha Broadband Communications, Inc | 59.1K | 65.5K | 18 |
| AS19437US | SS-ASH - SECURED SERVERS LLC | 59.1K | 260 | 113 |
| AS30475US | WEHOSTWEBSITES-COM - Handy Networks, LLC | 59.1K | 65.5K | 34 |
| AS6222US | CENTURYLINK-LEGACY-EMBARQ-CLTN - CenturyLink Communications, LLC | 59.1K | — | 37 |