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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) | 227.5M | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| 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.
32,247 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 | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| 1.8K |
| 4.1K |
| 8 |
| AS394019US | FIBERSPARK - FiberSpark Inc. | 1.8K | 524.3K | 9 |
| AS13656US | WORTHINGTONSTEEL - THE WORTHINGTON STEEL COMPANY | 1.8K | — | 7 |
| AS30311US | DWS-LON - Disney Worldwide Services, Inc. | 1.8K | — | 7 |
| AS395347US | GOBROLLYASN - Brolly Communications, Inc. | 1.8K | — | 4 |
| AS393906US | TRANSWORLDSYSTEMS - TSI | 1.8K | — | 6 |
| AS401224US | T1NETWORK - T1 Network LLC | 1.8K | — | 7 |
| AS11277US | NISOURCE-CORPORATE-SERVICES-COMPANY - NiSource Corporate Services Company | 1.8K | — | 4 |
| AS53450US | UAAM-ASN - University of Arkansas at Monticello | 1.8K | — | 3 |
| AS17267US | VGI-TECHNOLOGY - VGI Technology, Inc. | 1.8K | 65.8K | 9 |
| AS397696US | WESTNETWORKS-GNV-FL-01 - West Networks LLC | 1.8K | — | 7 |
| AS401215US | MPS-MP - MITCHELL PLASTICS | 1.8K | — | 7 |
| AS62632US | UNITI-ITS - Uniti Fiber Holdings Inc. | 1.8K | — | 3 |
| AS400468US | AXIOGIC - Axiogic | 1.8K | — | 7 |
| AS7332US | LIGHTBOUND-AS - LightBound, LLC | 1.8K | 65.5K | 8 |
| AS18848US | ALTEC-IND-DOM - Altec Industries, Inc. | 1.8K | — | 5 |
| AS397779US | CONCORD-HOSPITAL-ASN-01 - Concord Hospital | 1.8K | — | 4 |
| AS23088US | TBG - The Blackstone Group | 1.8K | — | 4 |
| AS40731US | LATIN-IP - Latin IP LLC | 1.8K | — | 4 |
| AS33755US | VALORNODE - Valor Holdings LLC | 1.8K | 13 | 17 |
| AS395487US | ATG-395487 - Accretive Networks | 1.8K | — | 4 |
| AS399628US | IMR-AS-01 - Internet Measurement Research | 1.8K | 7 | 14 |
| AS31799US | SP-US-WEST1 - Samaritan's Purse | 1.8K | — | 7 |
| AS22391US | BCIS-BEXAR-COUNTY-INFORMATION-SERVICES - Bexar County - Information Technology | 1.8K | — | 6 |
| AS400414US | ROAMR-COMMUNICATIONS - ROAMR Communications Inc. | 1.8K | — | 4 |
| AS40169US | USABROAD - USABROAD INC. | 1.8K | — | 7 |
| AS3653US | HBAL-2-3653 - House of Ben Avraham LLC | 1.8K | 4.1K | 4 |
| AS22481US | AVSGIA-AS - Encore Group (USA) LLC | 1.8K | — | 7 |
| AS25670US | THINKCSC - thinkCSC | 1.8K | 34 | 11 |
| AS26280US | POLARIS - Polaris Industries, Inc. | 1.8K | — | 7 |
| AS397095US | SETSONLLC - Setson LLC | 1.8K | 4.1K | 6 |
| AS395723US | LIGHTSPEEDHOSTING1 - LightSpeed Hosting | 1.8K | 4.1K | 5 |
| AS134537US | ATT-NBE-US - ATT NBE Equinix Seattle | 1.8K | 2 | 9 |
| AS40059US | CBCCTS-HQNET - Community Blood Center | 1.8K | — | 4 |
| AS53930US | SABA-AS-001 - Saba Software Inc. | 1.8K | — | 7 |
| AS46502US | SYNCWAVE-499 - SyncWave, LLC | 1.8K | — | 3 |
| AS2143US | AS2143 - National Aeronautics and Space Administration | 1.8K | — | 3 |
| AS22002US | SYSTEMS-SOLUTIONS-OF-PADUCAH-INC - Systems Solutions of Paducah, Inc. | 1.8K | — | 7 |
| AS402511US | XPEER - XPEERS | 1.8K | 2.1M | 12 |
| AS14791US | NTS-DENISON-01 - Vexus Fiber | 1.8K | — | 3 |
| AS30398US | AS-ADS - Automated Data Systems | 1.8K | — | 4 |
| AS11176US | SMART-CITY-MNCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.8K | — | 3 |
| AS4543US | TIMESNET - The New York Times Company | 1.8K | — | 7 |
| AS14931US | STA-AS - The St. Paul Travelers Companies, Inc. | 1.8K | — | 6 |
| AS54749US | JASPIN - Jaspin Interactive, Inc. | 1.8K | — | 4 |
| AS19054US | NATHNETWORK-ASN - Nath Network & Telecom Inc | 1.8K | 2 | 9 |
| AS12156US | AURORA-COLORADO - City of Aurora Colorado | 1.8K | — | 6 |