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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.9M | 21,015 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,222 |
| 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 | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,584 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,935 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,561 |
| APOG-ALBANY - Apogee Telecom Inc. |
| 18.9K |
| — |
| 13 |
| AS14200US | MARSHALLUNIV - Marshall University | 18.9K | 1 | 5 |
| AS30666US | XCHANGETELECOMCORP - Xchange Telecom Corp. | 18.9K | 65.5K | 13 |
| AS11740US | PROGRESSIVE-AS - Progressive Casualty Insurance Company | 18.9K | — | 12 |
| AS22079US | APTNET-AS-01 - Alaska Power & Telephone Company | 18.9K | 65.5K | 24 |
| AS11402US | CCCAS-1 - Charlotte Colocation Center, LLc | 18.9K | — | 30 |
| AS397644US | UNIVERSITY-OF-MARY-WASHINGTON - University of Mary Washington | 18.9K | — | 11 |
| AS6250US | NEONOVA-NET - NeoNova Network Services, LLC | 18.9K | — | 39 |
| AS32212US | HSB-EDGE - Sky Fiber Internet | 18.9K | — | 39 |
| AS6034US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 18.9K | 4 | 35 |
| AS395876US | HUXCOMM-01 - Huxley Communications Cooperative | 18.7K | 65.5K | 40 |
| AS400618US | PRIME-SEC - Prime Security Corp. | 18.7K | 2.6K | 74 |
| AS8092US | AMH - Access Media Holdings, LLC | 18.7K | — | 48 |
| AS398777US | PIONEER-CONNECT - Pioneer Connect | 18.7K | — | 5 |
| AS11240US | ATC-BROADBAND - AccessATC | 18.7K | 65.5K | 26 |
| AS400136US | VOLTBROADBAND-01 - Volt Broadband | 18.7K | 65.5K | 42 |
| AS30027US | STINET-1 - S & T COMMUNICATIONS LLC | 18.7K | — | 6 |
| AS36492US | GOOGLEWIFI - Google, LLC | 18.7K | 8.4K | 148 |
| AS46957US | MPTELCO-1 - Medicine Park Telephone Company | 18.7K | — | 25 |
| AS18649US | ST-DAL - Mitel Networks, Inc. | 18.7K | — | 17 |
| AS33125US | BUGTUSSEL - Bug Tussel Wireless | 18.7K | 65.5K | 15 |
| AS6040US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 18.7K | — | 54 |
| AS25712US | CSIPADKY - Computer Services Inc | 18.7K | — | 13 |
| AS393775US | IPP-AS - IP Pathways, LLC | 18.7K | 8.2K | 37 |
| AS397849US | ZOHO-STREAMING-CONTENT-NETWORK - ZOHO | 18.4K | 4 | 20 |
| AS27202US | CBK-AS - City of Bardstown, Kentucky | 18.4K | — | 16 |
| AS27564US | CAPGEMINI-CIS-AS1 - CAPGEMINI AMERICA, INC. | 18.4K | 65.5K | 10 |
| AS1567US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | 18.4K | — | 3 |
| AS7055US | QIS - Quantum Internet Services, Inc. | 18.4K | 65.5K | 4 |
| AS19194US | JOVITA - Sentris Network LLC | 18.4K | 4.1K | 67 |
| AS14703US | MAQSNET - MARQUETTE-ADAMS TELEPHONE COOPERATIVE, INC. | 18.4K | 65.5K | 10 |
| AS398420US | TISHOMINGO-CONNECT - Tishomingo Connect, LLC | 18.4K | — | 25 |
| AS16942US | CITIZENS - Citizens Telephone Cooperative | 18.4K | 65.5K | 10 |
| AS14065US | TWC-14065-COUDERSPORT - Charter Communications Inc | 18.4K | — | 8 |
| AS33294US | SOUTH-CENTRAL-CONNECT - South Central Connect | 18.4K | 65.5K | 4 |
| AS397803US | HCAS-6 - Hanson Communications, Inc. | 18.4K | 65.5K | 7 |
| AS11414US | NVIDIA-NET - Nvidia Corporation | 18.4K | 16.9K | 64 |
| AS18780US | RESTEL-81 - Reservation Telephone Coop. | 18.4K | 65.5K | 28 |
| AS54706US | ZTELCO - ZRAY TECHNOLOGIES CORPORATION | 18.4K | 8.2K | 34 |
| AS397361US | POKA-ISP - Poka Lambro Telephone Cooperative, Inc. | 18.4K | 65.5K | 16 |
| AS40948US | STRATUS-NETWORKS - Stratus Networks | 18.2K | 65.5K | 17 |
| AS21898US | PTN-AS1 - Plant TiftNet, Inc | 18.2K | 65.5K | 56 |
| AS11353US | ASN-ESCXI - Education Service Center Region XI | 18.2K | — | 4 |
| AS22223US | MVTV-AS1 - MVTV Wireless | 18.2K | 65.5K | 17 |
| AS32760US | ASN-AURIS1 - Auris, LLC. | 18.2K | — | 12 |
| AS26666US | INTERSERVER-LAX - Interserver, Inc | 18.2K | 1.3M | 45 |
| AS398371US | ORANGE-COUNTY-BROADBAND-AUTHORITY - OCBA | 18.2K | 65.5K | 46 |