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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 | 3,140 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,178 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,946 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,371 |
| EUROFINS-US - Eurofins NSC, INC. |
| 512 |
| — |
| 1 |
| AS396840US | SPI-BLOCK-A - Sky Path Inc. | 512 | 1 | 3 |
| AS401645US | DATAIMPULSE-AS - Softoria LLC | 512 | — | 2 |
| AS394479US | EMA-RAD - eMoney Advisor | 512 | — | 2 |
| AS53291US | WSFS-ASN - WSFS Bank | 512 | — | 2 |
| AS53377US | TGNA-WVEC - TEGNA Inc. | 512 | — | 2 |
| AS36011US | AHSYS-ASN - Atlantic Health System | 512 | — | 2 |
| AS21592US | MULTIVIEW - Multi-View Inc. | 512 | — | 2 |
| AS21961US | JBSHOLDINGUSA - JBS USA Holdings | 512 | — | 2 |
| AS11871US | DUKE-MW-AS11871 - Duke Energy Corporation | 512 | — | 2 |
| AS16873US | AS-HARTS - HART SYSTEMS INC | 512 | — | 2 |
| AS32697US | NMFN - NM Fiber Network, LLC | 512 | 65.5K | 3 |
| AS393824US | APOG-LENOIR-RHYNE - Apogee Telecom Inc. | 512 | — | 1 |
| AS400648US | NATURALWIRELESS - Natural Wireless, LLC | 512 | — | 1 |
| AS396218US | NRA - National Rifle Association of America | 512 | — | 2 |
| AS400398US | MFSG - Money Mart Financial Services Group | 512 | — | 1 |
| AS136899US | PHOENIXNAP-AS-SG3 - PhoenixNAP | 512 | 257 | 4 |
| AS36779US | LEARFIELD - Learfield Communications, LLC | 512 | — | 2 |
| AS20145US | FCS - FLORIDA CANCER SPECIALISTS, P.L. | 512 | — | 2 |
| AS26549US | MY-PBX-MANAGER - The Flat Planet Phone Company Inc. | 512 | 2 | 4 |
| AS46142US | BP-1 - BridgePay Network Solutions, LLC | 512 | — | 2 |
| AS63369US | TANNER-MEDICAL-CENTER - Tanner Medical Center, Inc. | 512 | — | 2 |
| AS39985US | RACKROOM-SHOES - Rack Room Shoes | 512 | — | 2 |
| AS40146US | RTCONN-LAS - Right Connection, Inc. | 512 | 3 | 5 |
| AS397915US | HALLRECORDS-01 - Hall Records Music | 512 | 16 | 2 |
| AS27180US | ACETOMATO - Ace Tomato Company | 512 | 4.4K | 4 |
| AS26963US | CCCU-1 - City & County Credit Union | 512 | — | 2 |
| AS46571US | USNEWS - U.S. News & World Report, L.P. | 512 | — | 2 |
| AS14848US | DOOSAN-INFORMATION-COMMUNICATIONS-AMERICA - DOOSAN INFORMATION AND COMMUNICATIONS AMERICA, LLC | 512 | — | 2 |
| AS394777US | SMBMI - San Manuel Band of Mission Indians | 512 | — | 2 |
| AS400088US | WAWA-PUBLIC-BLOCK - Wawa Inc. | 512 | — | 1 |
| AS197841US | MICHAEL - Michael Newcomb, Sole Proprietorship | 512 | 32 | 4 |
| AS36764US | KCCI-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS396873US | BABYPENGUIN - Baby Penguin LLC | 512 | — | 2 |
| AS29943US | UNITEDSOLUTIONS - United Solutions Company | 512 | — | 2 |
| AS21982US | PRDCA-ASN - Panasonic R & D Company of America | 512 | — | 2 |
| AS32438US | GRO-UCFUSM-1N - Michigan State University Federal Credit Union | 512 | — | 2 |
| AS33465US | TSP-NET - Johnson Controls Inc | 512 | — | 2 |
| AS395009US | VECTORWORKS-NET - Vectorworks, Inc. | 512 | — | 2 |
| AS62884US | HKLAW - Holland & Knight LLP | 512 | — | 2 |
| AS15351US | VISPERAD-NETWORKS-LLC - VISPERAD NETWORKS, LLC | 512 | — | 2 |
| AS400127US | AILIC-01 - MassMutual Ascend Life Insurance Company | 512 | — | 1 |
| AS398790US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 512 | — | 2 |
| AS30425US | UTA-1 - Utah Transit Authority | 512 | — | 1 |
| AS401985US | AS-FDML-1 - Family Dollar | 512 | — | 2 |
| AS18966US | AURORA-SOLUTIONS - Aurora Solutions, LLC | 512 | — | 2 |
| AS23134US | VERSO-PUB-RANGE1 - Verso Corporation | 512 | — | 2 |