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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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. | 218.1M | 24,630 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,219 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS402704US | TURRETTECH-AS-01 - TURRET. | 256 | 256 | 2 |
| AS1812US | DXC-AS1810-AS1815 - DXC US Latin America Corporation | 256 | — | 1 |
| AS14844US | CITY-OF-KILLEEN-TX-01 - CITY OF KILLEEN | 256 | — | 1 |
| AS27217US | ACN-2 - Jewelry Television | 256 | 3 | 3 |
| AS1553US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | 256 | — | 1 |
| AS399235US | UPLINK-INTERNET - Uplink L.L.C. | 256 | 256 | 2 |
| AS397684US | CLOUD-TECHNOLOGIES-INC - Cloud Technologies, Inc | 256 | — | 1 |
| AS398235US | BLUE-LOBSTER - Blue Lobster Inc. | 256 | — | 1 |
| AS400989US | YDIO - Ydio LLC | 256 | 1.7K | 28 |
| AS401343US | DUTCHESS-COUNTY-NY-AS - County Of Dutchess, NY | 256 | — | 1 |
| AS910US | NORTA-CANAL - RTA | 256 | — | 1 |
| AS40645US | GWAEA-AS01 - Grant Wood Area Education Agency | 256 | — | 1 |
| AS15082US | OMEG-LCN - OMEGAI | 256 | 18 | 4 |
| AS30555US | VSCP01 - VariSpace Coppell, LLC | 256 | — | 1 |
| AS7850US | TN-ASN-CL - Tarakona Networks, LLC | 256 | — | 1 |
| AS10851US | SJCB - St Johns County BOCC | 256 | 48 | 4 |
| AS32859US | JEGS-HIGH-PERFORMANCE-ASN - JEGS | 256 | — | 1 |
| AS36268US | BUNNY - Bunny & Tomato Interconnect, Inc. | 256 | 1 | 2 |
| AS219106US | EU-VOXIMPLANTINC Voximplant, Inc. | 256 | — | 1 |
| AS36855US | LDI-ASN-01 - Louisiana Department of Insurance | 256 | — | 1 |
| AS30111US | COMMAUTO - Commonwealth Automobile Reinsurers | 256 | — | 1 |
| AS394948US | EDF-RE - EDF Renewables, Inc. | 256 | — | 1 |
| AS394123US | ASBURYINTEGRATEDTECHNOLOGIES - The Asbury Group Integrated Technologies, LLC | 256 | — | 1 |
| AS402918US | SUPERSEND - SuperSend | 256 | — | 1 |
| AS396094US | PERPETUAL-STORAGE-INC - Perpetual Storage, Inc. | 256 | — | 1 |
| AS23037US | HCACA-RMCANNISTON-1 - Northeast Alabama Regional Medical Center | 256 | — | 1 |
| AS32612US | LOC-AS01 - Lyric Opera of Chicago | 256 | — | 1 |
| AS14879US | PARIS-AS - PARIS ACCESSORIES INC. | 256 | — | 1 |
| AS1428US | DRW-HOLDINGS - DRW Holdings, LLC | 256 | — | 1 |
| AS401114US | COLUMBIACOUNTYWI - Columbia County | 256 | — | 1 |
| AS401310US | PMTC-ASN - Palmer Mutual Telephone Company | 256 | 4.1K | 2 |
| AS1958US | NCRWIN1958 - NCR Voyix Corporation | 256 | — | 1 |
| AS402397US | 17SOLUTIONS-LLC - 17 | 256 | 1 | 2 |
| AS36033US | MOON-AS - Moon Capital Master Fund Ltd. | 256 | — | 1 |
| AS26741US | CEMC - CarolinaEast Medical Center | 256 | — | 1 |
| AS62939US | PINKBIKE-US-DC1 - Outside Interactive Canada Inc. | 256 | — | 1 |
| AS18619US | NUSOCLOUD-MO - NUSO | 256 | — | 1 |
| AS32788US | C75-NETWORKS - Coloblox Data Centers Inc | 256 | — | 1 |
| AS396335US | LRHS-LAKELAND-FL - Lakeland Regional Health Systems, Inc | 256 | — | 1 |
| AS22564US | TRABON-SOLUTIONS - Trabon Solutions | 256 | — | 1 |
| AS54248US | GCPSNET - School Board of Gadsden County | 256 | — | 1 |
| AS20420US | DV - Digital Ventures, LLC | 256 | 2 | 3 |
| AS399432US | AS-MS-78058 - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas | 256 | — | 1 |
| AS16588US | POLITICO - Politico, LLC | 256 | — | 1 |
| AS398366US | LINKUP - Linkup Communications Corporation | 256 | — | 1 |
| AS22614US | IGA-ASN-01 - Legislative Services Agency | 256 | — | 1 |