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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 | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| — |
| — |
| 0 |
| AS394269US | BRLI - Bio-Reference Laboratories, Inc. | — | — | 0 |
| AS394394US | VNA-PRIM - Visiting Nurse Association of Chittenden and Grand Isle Counties | — | — | 0 |
| AS394496US | GLCU - Great Lakes Credit Union | — | — | 0 |
| AS394539US | TSYS-EQUINIX-SV5 - Global Payments Inc. | — | — | 0 |
| AS394561US | YAHOO-CHA - Yahoo Holdings Inc. | — | — | 0 |
| AS394568US | MOUNTAINBROADBANDNETWORKS - McGrange Technologies, LLC | — | — | 0 |
| AS394574US | DIALPAD-SF - Dialpad, Inc. | — | — | 0 |
| AS394624US | METEORCOMMLLC - Meteorcomm LLC | — | — | 0 |
| AS394638US | HARVARD-MEDICAL-SCHOOL - Harvard Medical School | — | — | 0 |
| AS394644US | TF-178-ASH1 - Ting Fiber Inc. | — | — | 0 |
| AS394844US | ROOT-LEVEL-TECHNOLOGY - Root Level Technology, LLC | — | — | 0 |
| AS394953US | SAP-CONCUR-EP - SAP America Inc. | — | — | 0 |
| AS395136US | RADICAL-INC-1 - Radio Communications of California, Incorporated | — | — | 0 |
| AS395253US | MACMILLER - MacDonald-Miller | — | — | 0 |
| AS395298US | 007-NETWORKS - 007 Networks, LLC | — | — | 0 |
| AS395306US | BROADBANDCORP - BROADBAND CORP | — | — | 0 |
| AS395313US | BRAINTREE-2 - PayPal, Inc. | — | — | 0 |
| AS395334US | MINNESOTAVALLEY - Minnesota Valley Electric Cooperative | — | — | 0 |
| AS395358US | LUMINEX-ASN-01 - Luminex Trading | — | — | 0 |
| AS395470US | NYM - Nymlyria LLC | — | — | 0 |
| AS395472US | HARRIS-COUNTY-PUBLIC-SAFETY-TECHNOLOGY-SERVICES - Harris County Public Safety Technology Services | — | — | 0 |
| AS395499US | DWYR - Dwyer Group | — | — | 0 |
| AS395515US | NEOSYSTEMSLLC-USA - NeoSystems LLC | — | — | 0 |
| AS395622US | MOZILLA-PDX1 - Mozilla Corporation | — | — | 0 |
| AS395626US | DATRI-ASN-1 - Datrium, Inc | — | — | 0 |
| AS395656US | AS-APEX - Apex Cables LLC | — | — | 0 |
| AS395706US | CFSSCHSDC01 - Connect Financial Software Solutions, LLC | — | — | 0 |
| AS395829US | RCU-ASN - Redwood Credit Union | — | — | 0 |
| AS395907US | CALPINE-ENERGY-SOLUTIONS - Calpine Energy Solutions, LLC | — | — | 0 |
| AS395950US | HIGHWIRE-PRESS - HighWire Press Inc | — | — | 0 |
| AS395977US | ALLIED-GLOBAL-MARKETING-WEST - AALP, INC | — | — | 0 |
| AS395981US | PENSKE-CORPORATE - Penske System Inc | — | — | 0 |
| AS396007US | SFM-ANYCAST - Supply Frame, Inc. | — | — | 0 |
| AS396047US | CSUTILITIES-ASN - Colorado Springs Utilities | — | — | 0 |
| AS396064US | BASTIAAN MATHIJS BRINK - H2 Technologies LLC | — | — | 0 |
| AS396143US | OCEAN-SPRAY - Ocean Spray Cranberries, Inc. | — | — | 0 |
| AS396183US | OMNIPLATFORM - OmniPlatform Corporation | — | — | 0 |
| AS396196US | PRIORITY-COMM-CLOUD-SERVICES - Priority Communications | — | — | 0 |
| AS396249US | SYMMETRY - NTT Managed Services Americas, LLC | — | — | 0 |
| AS396360US | TSYS-EQUINIX-DC6 - Global Payments Inc. | — | — | 0 |
| AS396540US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396542US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396559US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396565US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396611US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396618US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |