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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 3.3K |
| 65.5K |
| 5 |
| AS1631US | AS1631 - Radnet Management, Inc. | 3.3K | — | 6 |
| AS13996US | ECHOSTAR - Dish Network Corporation | 3.3K | — | 13 |
| AS26739US | DN-154-26739 - Dash Networks Inc. | 3.3K | 1 | 12 |
| AS397006US | MULLCLOUD - Mullcloud LLC | 3.3K | 266.2K | 5 |
| AS22121US | TOPSHAM-COMMUNICATIONS - Topsham Communications LLC | 3.3K | 65.5K | 4 |
| AS22103US | NEXTIVA - Nextiva, Inc. | 3.3K | — | 13 |
| AS401097US | DICKINSON-EDU - Dickinson College | 3.3K | — | 4 |
| AS400897US | PETROSKY - PETROSKY CLOUD LLC | 3.3K | — | 7 |
| AS6130US | AIS-WEST - American Internet Services, LLC. | 3.3K | — | 13 |
| AS1616US | DATABANK-CORELINK - CoreLink Data Centers | 3.3K | — | 6 |
| AS26804US | CBTS-US-PEERING-01 - CBTS Technology Solutions LLC | 3.3K | 4.1K | 9 |
| AS402344US | XPCTECH - XPCTECH | 3.3K | 131.1K | 26 |
| AS14091US | THRIVE-SE2 - Thrive Operations, LLC | 3.3K | — | 13 |
| AS47020US | DATA-CAVE - Data Cave | 3.3K | 65.5K | 5 |
| AS394133US | ATLRETAIL - T5 @ ATLANTA, LLC | 3.3K | — | 4 |
| AS16595US | TORO - The Toro Company | 3.3K | — | 11 |
| AS14925US | DELTA - Delta Air Lines | 3.3K | — | 12 |
| AS400126US | CMCMD - Copper Mountain Consolidated Metropolitan District | 3.3K | — | 3 |
| AS25631US | GALLAUDET - Gallaudet University | 3.3K | 1 | 6 |
| AS400385US | CITIZENS-TELEPHONE-ASN-01 - Citizens Telephone Corporation | 3.3K | — | 13 |
| AS10298US | AS10298 - CACI Inc., Federal | 3.3K | — | 13 |
| AS11359US | RMCNEVADA - Zayo Bandwidth | 3.1K | — | 5 |
| AS25846US | US-CLOUDNIUM-01 - Cloudnium LLC | 3.1K | 257 | 13 |
| AS32688US | GOLDEN1-CU-NET - THE GOLDEN 1 CREDIT UNION | 3.1K | — | 12 |
| AS54681US | ROSE-AS - Aubrey Rose | 3.1K | 7.5K | 53 |
| AS19683US | FORENDATA - Foren Data, Inc. | 3.1K | — | 9 |
| AS12228US | 2CO - GENESISCARE USA OF FLORIDA, LLC | 3.1K | — | 2 |
| AS402631US | FLIPTHEORY - FlipTheory | 3.1K | — | 12 |
| AS64280US | PALO-ALTO-NETWORKS - Palo Alto Networks, Inc | 3.1K | — | 12 |
| AS36645US | STEADFAST-NETWORKS-GEN - Genuity Networks, LLC | 3.1K | — | 3 |
| AS396167US | BHN-BGP - Blackhawk Network, Inc. | 3.1K | — | 11 |
| AS21964US | THE-SCOTTS-COMPANY - The Scotts Company | 3.1K | — | 5 |
| AS396018US | INOVALON - Inovalon Inc. | 3.1K | — | 5 |
| AS13729US | FIDESSA-US - Fidessa Corporation | 3.1K | — | 12 |
| AS32027US | POS-ASN - Port of Seattle | 3.1K | — | 5 |
| AS11207US | BOSTON-GLOBE-NETWORK-01 - Boston Globe Media Partners, LLC | 3.1K | — | 8 |
| AS54062US | SOUTHWIREPUBLIC - Southwire Company | 3.1K | — | 2 |
| AS54086US | SINGLE-DIGITS - Single Digits, Inc. | 3.1K | — | 12 |
| AS277US | DXC-AS277 - DXC US Latin America Corporation | 3.1K | — | 6 |
| AS394452US | MCKINSEY-US-AWP - McKinsey & Company, Inc. | 3.1K | — | 12 |
| AS55244US | BLUE-01 - Blue Origin Enterprises, L.P. | 3.1K | 260 | 13 |
| AS32289US | SWIFT-TRANSPORTATION-CORPORATION-INC - Swift Transportation Co., LLC | 3.1K | — | 8 |
| AS40170US | MTR0-01 - Intermetro Communications, Inc. | 3.1K | — | 12 |
| AS29898US | MONEYGRAM-INTERNATIONAL-INC - MoneyGram International Inc | 3.1K | — | 9 |
| AS397093US | SEH-CDC - St. Elizabeth Medical Center, Inc. | 3.1K | — | 12 |
| AS14110US | GENESYS-ASN - Genesys Telecommunications Laboratories,Inc. | 3.1K | — | 8 |