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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 |
| 41K |
| — |
| 12 |
| AS36556US | WAVE-RURAL-CONNECT-LLC - Wave Rural Connect, LLC | 41K | 4.1K | 9 |
| AS30517US | GREAT-LAKES-COMNET - Great Lakes Comnet, Inc. | 41.2K | 131.1K | 23 |
| AS398378US | BOOST-MOBILE - Boost Mobile | 41.5K | 4 | 31 |
| AS204957US | GREENFLOID-AS ROUTE 95 LLC | 41.5K | 983K | 158 |
| AS14860US | AS-SMARTCOM - SMARTCOM TELEPHONE, LLC | 41.5K | 135.2K | 30 |
| AS54032US | SEATTLEPACIFICUNIV - Seattle Pacific University | 41.5K | — | 11 |
| AS397575US | ASCENSION-TECHNOLOGIES - Ascension Technologies | 41.5K | — | 5 |
| AS394695US | PUBLIC-DOMAIN-REGISTRY - PDR | 41.7K | — | 36 |
| AS10821US | PIONEERINTERNET - The Pioneer Telephone Association, Inc. | 41.7K | — | 26 |
| AS1982US | ASN-NWNEXUS - Northwest Nexus Inc. | 42K | — | 7 |
| AS395582US | GRM-NETWORK - Grand River Mutual Telephone Corporation | 42K | 65.5K | 85 |
| AS26292US | ASN-SHREWS - Shrewsbury Electric and Cable Operations | 42K | 65.5K | 21 |
| AS23308US | UTILITY-AS - UTILITY TELEPHONE, INC. | 42K | 65.5K | 17 |
| AS397630US | AS-BLAZINGSEO - Blazing SEO, LLC | 42K | — | 164 |
| AS399049US | JW-FLASHFIBER-01 - Joe Wheeler EMC | 42K | 69.6K | 46 |
| AS14955US | N-V-C - Northern Valley Communications LLC | 42K | — | 38 |
| AS393552US | COL-LPC - Longmont Power & Communications | 42.2K | 65.5K | 27 |
| AS27446US | AS-ERCBB - ERC Broadband | 42.2K | 65.5K | 14 |
| AS4314US | NTSC-ASN2 - Vexus Fiber | 42.5K | — | 63 |
| AS399610US | AMS-HST - HEWLETT PACKARD ENTERPRISE COMPANY | 42.5K | — | 9 |
| AS5033US | AS5033 - Key Information Systems, Inc. | 42.5K | — | 13 |
| AS27419US | BIGRIVER - Big River Telephone Company, LLC | 42.5K | — | 10 |
| AS25977US | HCCS - HOUSTON COMMUNITY COLLEGE SYSTEM | 42.5K | — | 44 |
| AS25876US | LADWP-INTERNET - Los Angeles Department of Water & Power | 42.5K | — | 29 |
| AS19256US | COMMNET-WIRELESS-LLC - COMMNET WIRELESS LLC | 42.8K | 131.1K | 37 |
| AS30536US | CCR-AS - Circle Computer Resources, Inc. | 42.8K | 2.3K | 86 |
| AS11668US | WCI-NET - WEST COAST INTERNET INCORPORATED | 43K | — | 60 |
| AS46208US | PFNL-ASN - Peninsula Fiber Network, LLC | 43K | 229.4K | 53 |
| AS19531US | NODESDIRECT - Nodes Direct | 43K | 1M | 13 |
| AS46906US | GOSEMO-LLC - GoSEMO Fiber | 43K | 65.5K | 29 |
| AS40285US | NORTHLAND-CABLE - NORTHLAND CABLE TELEVISION INC. | 43K | — | 137 |
| AS36012US | HUNTER-COMM - HUNTER COMMUNICATIONS | 43.3K | 131.1K | 17 |
| AS16406US | AS-INTERMEDIA - Intermedia.net, Inc. | 43.5K | — | 45 |
| AS3842US | RAMNODE - InMotion Hosting, Inc. | 43.5K | 14 | 57 |
| AS36545US | BLEDSOE - Bledsoe Telephone Cooperative Corporation | 43.5K | — | 51 |
| AS395383US | DATAVERGE - Cologuard | 43.5K | 65.5K | 27 |
| AS27138US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 43.8K | — | 154 |
| AS393397US | LREC-LRT - Lake Region Electric Cooperative, Inc | 43.8K | 65.5K | 64 |
| AS29968US | ASN-NETSYNC - Dunkirk & Fredonia Telephone Company | 43.8K | — | 38 |
| AS40913US | QTS-SJC - Quality Technology Services, LLC | 44K | 65.6K | 22 |
| AS25720US | HONEYCOMB - Honeycomb Internet Services | 44K | 69.6K | 65 |
| AS21554US | CYBERLYNK - Wisconsin CyberLynk Network, Inc. | 44.3K | 131.1K | 64 |
| AS26463US | MISD-NET - Macomb Intermediate School District | 44.3K | — | 46 |
| AS53587US | AZT - AZURE TECHNOLOGY CO., LIMITED | 44.3K | 65.5K | 84 |
| AS22697US | ROBLOX-PRODUCTION - Roblox | 44.5K | 269 | 60 |
| AS395793US | ARISK-COMMUNICATIONS-INC - Arisk Communications inc. | 44.5K | — | 155 |