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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 |
| EXEGY - Exegy Incorporated |
| 1.8K |
| 65.5K |
| 11 |
| AS11277US | NISOURCE-CORPORATE-SERVICES-COMPANY - NiSource Corporate Services Company | 1.8K | — | 4 |
| AS31799US | SP-US-WEST1 - Samaritan's Purse | 1.8K | — | 7 |
| AS402671US | FROCEL - Frontier | 1.8K | 4.2M | 15 |
| AS30311US | DWS-LON - Disney Worldwide Services, Inc. | 1.8K | — | 7 |
| AS46358US | UAT - University of Advancing Technology | 1.8K | — | 7 |
| AS13501US | OARNET-AS-2 - OARnet | 1.8K | — | 7 |
| AS7201US | AS-NETWORKEDGE - Network Edge LLC | 1.8K | 18 | 10 |
| AS63001US | NTS-ALEXANDRIA-01 - Vexus Fiber | 1.8K | — | 3 |
| AS19643US | NETSYN - Network Synergy Corporation | 1.8K | — | 7 |
| AS19917US | MOHEGANSUN - Mohegan Sun | 1.8K | — | 5 |
| AS22111US | ELOYALTY - Mattersight Corporation | 1.8K | — | 3 |
| AS399491US | VIOLA-COMMUNICATIONS - Viola Communications Inc | 1.8K | — | 5 |
| AS394019US | FIBERSPARK - FiberSpark Inc. | 1.8K | 524.3K | 9 |
| AS36640US | SLASCONSULTING - SLAS Consulting, LLC | 1.8K | — | 3 |
| AS54555US | HOSTDUPLEX - Host Duplex, LLC | 1.8K | — | 4 |
| AS30382US | IPTELX - IPtelX | 1.8K | 65.5K | 8 |
| AS23177US | TNB-NET - Thomas & Betts Corporation | 1.8K | — | 7 |
| AS395540US | NITEL-AS395540 - Hypercore Networks, Inc | 1.8K | — | 4 |
| AS54081US | GJCITY-01 - City of Grand Junction | 1.8K | — | 7 |
| AS397860US | HIT - HANKINS INFORMATION TECHNOLOGY | 1.8K | — | 3 |
| AS394105US | AMTRUST-NA - AmTrust North America, Inc. | 1.8K | — | 5 |
| AS33365US | CINFIN-ASN-01 - Cincinnati Financial Corporation | 1.8K | — | 5 |
| AS396002US | TLVTPAATL - TeleVoIPs | 1.8K | — | 4 |
| AS401215US | MPS-MP - MITCHELL PLASTICS | 1.8K | — | 7 |
| AS53626US | CORUS360 - Corus360 | 1.8K | — | 4 |
| AS32621US | TCV-511 - Twin City VoIP, Inc. | 1.8K | 4.1K | 8 |
| AS16871US | MCDONAGHBROTHERS - McDonagh Bros. Inc. | 1.8K | — | 6 |
| AS32091US | TRACF-AS - Tracfone Wireless | 1.8K | — | 4 |
| AS7332US | LIGHTBOUND-AS - LightBound, LLC | 1.8K | 65.5K | 8 |
| AS54037US | DCA-LN - DCA LLC | 1.8K | — | 5 |
| AS30120US | SGNE-AS - Sempra Global | 1.8K | — | 5 |
| AS402510US | ESSYSS-NETWORK - Essyss | 1.8K | — | 7 |
| AS402665US | SLA - SLA | 1.8K | 5 | 12 |
| AS53602US | MILWAUKEE-ELECTRIC-TOOL-CORPORATION - Milwaukee Electric Tool Corporation | 1.8K | — | 6 |
| AS30418US | SUMT-CMH - SumTotal Systems, Inc. | 1.8K | — | 4 |
| AS36599US | SOFTETHER-AMERICA - SoftEther Telecommunication Research Institute, LLC | 1.8K | — | 4 |
| AS3783US | AIU-ALLEGHENY-CONNECT-RWAN - Allegheny Intermediate Unit | 1.8K | — | 7 |
| AS393906US | TRANSWORLDSYSTEMS - TSI | 1.8K | — | 6 |
| AS46998US | GLOBAL-NETSOLUTIONS - Global Netsolutions LLC | 1.8K | 256 | 8 |
| AS63031US | WEBBYENT - Webby Enterprises LLC | 1.8K | — | 3 |
| AS395856US | 2KGAM-395856 - 2K GAMES, Inc. | 1.8K | — | 4 |
| AS62632US | UNITI-ITS - Uniti Fiber Holdings Inc. | 1.8K | — | 3 |
| AS23088US | TBG - The Blackstone Group | 1.8K | — | 4 |
| AS10717US | SCHOLASTIC - Scholastic Inc. | 1.8K | — | 6 |
| AS63287US | LUCERA - Lucera Financial Infrastructures, LLC | 1.8K | — | 6 |
| AS399628US | IMR-AS-01 - Internet Measurement Research | 1.8K | 7 | 14 |