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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 |
| 8.4K |
| 257 |
| 6 |
| AS46555US | RSOE-NA - TAKE-TWO INTERACTIVE SOFTWARE, INC. | 8.4K | — | 22 |
| AS36610US | EKNNET - East Kentucky Network, LLC. | 8.4K | 65.5K | 19 |
| AS19138US | SWEET-BRIAR-COLLEGE - Sweet Briar College | 8.4K | — | 2 |
| AS394473US | BTC-ONLINE - Brantley Telephone Company, Inc. | 8.4K | — | 7 |
| AS46573US | VAULT-HOST - Vault Host | 8.4K | — | 33 |
| AS16477US | NCL-203-16477 - Nielsen Consumer LLC | 8.4K | — | 21 |
| AS54393US | FLC-DURANGO - Fort Lewis College | 8.4K | — | 18 |
| AS40248US | CSL0-AS - County of San Luis Obispo | 8.4K | — | 2 |
| AS47869US | CL-1763-47869 - ColoHouse LLC | 8.4K | 1K | 16 |
| AS40232US | MIDSTATES-WIRELESS - Mid-States Services, LLC. | 8.4K | 65.5K | 27 |
| AS36305US | AMTA-AS1 - The Albany Mutual Telephone Association | 8.4K | 65.5K | 4 |
| AS27597US | SITESERVER-IDC1 - Siteserver, Inc. | 8.4K | 65.5K | 3 |
| AS27556US | FRACRACKVCLOUD - Frac Rack LLC | 8.4K | — | 2 |
| AS30219US | MLB-ADVANCED-MEDIA - Major League Baseball Advanced Media, LP | 8.4K | — | 33 |
| AS23546US | DELCOM-ASN - Delcom, Inc. | 8.4K | 65.5K | 24 |
| AS11623US | CTCN - CT Communications Network | 8.4K | 65.5K | 4 |
| AS29734US | TDA - Tuttle Development Authority | 8.4K | — | 4 |
| AS30182US | ZION-ASN1 - ZION BROADBAND INC | 8.4K | — | 16 |
| AS30361US | SWIFTWILL2 - Swiftwill, Inc. | 8.4K | 3 | 14 |
| AS27555US | BV-PUBLIC-ASN - Black & Veatch International Company | 8.4K | — | 16 |
| AS31766US | UPS-12-ASN - University of Puget Sound | 8.4K | — | 2 |
| AS19528US | MPDCOL - Meridian Parkway Data Center Owner, LLC | 8.4K | 32.8K | 17 |
| AS36843US | NORTHWEST-REGIONAL-DATACENTER - Florida State University | 8.4K | — | 10 |
| AS393740US | PROGRESSIVETEL - Progressive Rural Telephone Cooperative, Inc | 8.4K | — | 13 |
| AS25892US | VERTEX - VTX Telecom | 8.4K | 131.1K | 20 |
| AS32142US | ASD20 - Academy School District 20 | 8.4K | — | 2 |
| AS13392US | R18ESC - Region 18 Education Service Center | 8.4K | — | 2 |
| AS40149US | UBNET1-AS - University of Bridgeport | 8.4K | — | 2 |
| AS395563US | EDISON-CARRIER-SOLUTIONS - Southern California Edison | 8.4K | — | 2 |
| AS30091US | ACCESS-CABLE - Access Cable Television, Inc. | 8.4K | — | 12 |
| AS27572US | THEBOE-27572 - The Boeing Company | 8.4K | — | 2 |
| AS19224US | QSGIT - Quantum Services Group, LLC. | 8.4K | 65.5K | 15 |
| AS398816US | FLUME-01 - Flume | 8.4K | 66.3K | 23 |
| AS26633US | TEXAS-WOMANS-UNIVERSITY - Texas Woman's University | 8.4K | — | 14 |
| AS32220US | ASN-BELD - Braintree Electric Light Dept. | 8.4K | 65.5K | 4 |
| AS12284US | IPNS-AS - Computer Solutions / CSolutions | 8.4K | 65.5K | 3 |
| AS46963US | CITY-WINSTON-SALEM-AS - City of Winston-Salem | 8.4K | — | 2 |
| AS47095US | MURRAY-ELECTRIC-SYSTEM - Murray Electric System | 8.4K | — | 15 |
| AS31715US | ABTME-AS CloudIP LLC | 8.4K | — | 33 |
| AS18460US | FHSU - Fort Hays State University | 8.4K | 64 | 3 |
| AS32067US | AS32067 - Refinitiv US LLC | 8.4K | — | 21 |
| AS16740US | DX-SECURE - DOXX.NET CORPORATION | 8.4K | 33 | 66 |
| AS18838US | DCSSGA - DeKalb County School District | 8.4K | — | 3 |
| AS397305US | FMCTC - FMCTC | 8.4K | — | 25 |
| AS399641US | WT-DC2 - Wolverine Trading, LLC | 8.2K | — | 33 |
| AS8131US | PEPBOYS - Pep Boys | 8.2K | — | 2 |