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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,186 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,242 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,669 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,373 |
| 512 |
| 65.5K |
| 3 |
| AS395157US | ITCS-IBONE-IN-TOUCH-COMPUTER-SERVICES-INC - In-Touch Computer Services, Inc | 512 | — | 2 |
| AS395452US | SFPS - SFPS | 512 | — | 2 |
| AS394916US | PHLAIRPORT - Philadelphia International Airport | 512 | — | 2 |
| AS20236US | BEAL-SERVICE-CORPORATION - Beal Service Corporation | 512 | — | 2 |
| AS23190US | AESPAC - AES Pacific Inc. | 512 | — | 2 |
| AS19364US | SEBAGO-FIBER - Sebago Fiber & Wifi, LLC | 512 | 4.1K | 3 |
| AS40226US | GLOBALFCU - Global Credit Union | 512 | — | 2 |
| AS36525US | ALLEGIANCE-HEALTH - ALLEGIANCE HEALTH SERVICES | 512 | — | 2 |
| AS23112US | FLUIDSTACK-NET - Fluidstack Inc | 512 | 65.6K | 4 |
| AS46832US | UNIVERSITY-OF-MISSOURI-SYSTEM-INTER-CAMPUS-NETWORK - University of Missouri - dba the Missouri Research and Education Network (MOREnet) | 512 | — | 2 |
| AS36418US | HAP - HEALTH ALLIANCE PLAN OF MICHIGAN | 512 | — | 1 |
| AS12055US | CLEARBEARING-00 - Clearbearing Inc. | 512 | 1 | 3 |
| AS20052US | ARBOR - Arbor Networks, Inc. | 512 | — | 1 |
| AS394770US | AXIGENT-TECHNOLOGIES-GROUP - Axigent Technologies Group, Inc. | 512 | 65.5K | 3 |
| AS395654US | AGNCAS - AGNC Mortgage Management, LLC | 512 | — | 2 |
| AS21969US | FSA-AMH-AS01 - Firstsource Advantage LLC | 512 | — | 2 |
| AS53546US | LEGION - Legion, Inc. | 512 | — | 1 |
| AS32744US | MCCC - Montgomery County Community College | 512 | — | 2 |
| AS54514US | JFNA - Jewish Federations of North America, Inc. | 512 | — | 2 |
| AS30484US | PAHOUSEGOP - Pennsylvania House of Representatives, Republican IT Services | 512 | — | 2 |
| AS18533US | AAAWA-3605 - AAA Washington | 512 | — | 1 |
| AS26304US | COBORNS-PUB - Coborn's Inc | 512 | — | 2 |
| AS394270US | CABI-LLC-1 - Cabi LLC | 512 | — | 2 |
| AS395702US | FIN-REC1 - Financial Recovery Services, Inc. | 512 | — | 2 |
| AS53674US | KYVONAS-01 - SupportCloud, LLC | 512 | — | 2 |
| AS397670US | CVCU-ASN - Covantage Credit Union | 512 | — | 1 |
| AS395943US | MHAGBGP - Memorial Hospital at Gulfport | 512 | — | 2 |
| AS33161US | CHUMASH-ENTERPRISES - Chumash Casino Resort | 512 | — | 2 |
| AS22713US | CAC-HQ2 - Credit Acceptance Corporation | 512 | — | 1 |
| AS393618US | VCT - Vision Concept Technology, LLC | 512 | — | 2 |
| AS397509US | FLOOR-AND-DECOR - Floor and Decor Outlets of America, Inc. | 512 | — | 2 |
| AS393677US | HLS - Hematogenix Laboratory Services, LLC | 512 | — | 2 |
| AS399206US | ASSOCIATED-COMPUTER-SYSTEMS - Associated Computer Systems, Ltd | 512 | — | 2 |
| AS47029US | CAPSTONE - Capstone Logistics, LLC | 512 | — | 2 |
| AS26021US | AS-DNS3 - Unicycle, LLC | 512 | 4 | 4 |
| AS65US | AF-RASN-65 - Air Force Systems Networking | 512 | — | 2 |
| AS21710US | SLCHA - St. Lucie County - Automated Services | 512 | — | 2 |
| AS15115US | PREMIERE-NETWORKS-15115 - Premiere Networks | 512 | — | 1 |
| AS400656US | METRO-SERVICE - Metro Service Center | 512 | 65.5K | 2 |
| AS63166US | TGNA-WHAS - TEGNA Inc. | 512 | — | 2 |
| AS398298US | NETSTRATUM - Netstratum | 512 | — | 2 |
| AS397012US | OXYAHGC-01 - oXya Corporation | 512 | — | 1 |
| AS36519US | CISCO-TTNA - CISCO SYSTEMS, INC. | 512 | 1 | 2 |
| AS396321US | FANATICS - Fanatics, INC | 512 | — | 2 |
| AS31788US | POPPY - Poppy Inc | 512 | 4.1K | 3 |
| AS19733US | DCU-LCO1 - Digital Federal Credit Union | 512 | — | 2 |