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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,247 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,189 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 | 3,901 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,010 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,222 |
| 2.8K |
| 4 |
| 14 |
| AS53831US | SQUARESPACE - Squarespace, Inc. | 2.8K | — | 11 |
| AS55001US | CYBERSTREET-NET - CyberStreet | 2.8K | — | 8 |
| AS399381US | REZI-NET-AS - Resideo Technologies, Inc | 2.8K | — | 4 |
| AS21700US | NEPTUNE-NETWORKS - Neptune Networks, LLC | 2.8K | 67.6K | 9 |
| AS36283US | AS-RIVERWAVE - Riverwave LLC | 2.8K | 69.6K | 7 |
| AS53724US | EVM - EXTRAVM LLC | 2.8K | 7 | 18 |
| AS53641US | TOMALESBAYLAN - Tomales Bay LAN, LLC | 2.8K | — | 7 |
| AS395029US | STN-001 - STN Incorporated | 2.8K | — | 10 |
| AS395535US | WEISS-INTERNET - Weiss Internet | 2.8K | — | 11 |
| AS36373US | COMMUNITY-HEALTH-NETWORK - Community Hospitals, Indianapolis | 2.8K | — | 11 |
| AS397780US | ALMA-COMMUNICATIONS - Alma Telephone Company | 2.8K | — | 4 |
| AS15205US | NCPDAS - Nassau County Police Department | 2.8K | — | 4 |
| AS54523US | WSTC - WSTC | 2.8K | — | 5 |
| AS54913US | CLOUDWEBMANAGE-CANADA - Kamatera, Inc. | 2.8K | 2 | 13 |
| AS13824US | AIREBEAM - AireBeam | 2.8K | — | 4 |
| AS54781US | SYSCO-AS - Sysco Corporation | 2.9K | — | 8 |
| AS53285US | WCIN - Evolve Cellular Inc. | 3.1K | — | 9 |
| AS32289US | SWIFT-TRANSPORTATION-CORPORATION-INC - Swift Transportation Co., LLC | 3.1K | — | 8 |
| AS40468US | MONTGOMERYCOUNTYMDGOV - Montgomery County Government, Maryland | 3.1K | — | 2 |
| AS32027US | POS-ASN - Port of Seattle | 3.1K | — | 5 |
| AS15036US | TOWN-OF-PINEVILLE - Town of Pineville | 3.1K | — | 3 |
| AS35960US | CBH-NET-AS1 - City of Beverly Hills | 3.1K | — | 4 |
| AS396167US | BHN-BGP - Blackhawk Network, Inc. | 3.1K | — | 11 |
| AS397593US | ASGRICE01 - Grice Computer Consulting | 3.1K | — | 5 |
| AS14488US | WKYBB - City of Williamstown | 3.1K | — | 12 |
| AS32688US | GOLDEN1-CU-NET - THE GOLDEN 1 CREDIT UNION | 3.1K | — | 12 |
| AS12234US | UUNET-INT - Verizon Business | 3.1K | — | 5 |
| AS62821US | AS-MNX - MNX Solutions LLC | 3.1K | — | 9 |
| AS54681US | ROSE-AS - Aubrey Rose | 3.1K | 7.2K | 50 |
| AS397093US | SEH-CDC - St. Elizabeth Medical Center, Inc. | 3.1K | — | 12 |
| AS396018US | INOVALON - Inovalon Inc. | 3.1K | — | 5 |
| AS14110US | GENESYS-ASN - Genesys Telecommunications Laboratories,Inc. | 3.1K | — | 8 |
| AS43076US | LU-AS Global Broadband Solution Inc | 3.1K | — | 12 |
| AS32217US | GPIEX - GPIEX INC | 3.1K | 65.5K | 6 |
| AS55142US | NEWBREAK-COMMUNICATIONS-VICKSBURG - Newbreak Management Co. LLC | 3.1K | — | 2 |
| AS17116US | BHPHOTO - B & H Foto & Electronics Corp. | 3.1K | 1 | 9 |
| AS32372US | PRA-AS - PORTFOLIO RECOVERY ASSOCIATES | 3.1K | — | 10 |
| AS6130US | AIS-WEST - American Internet Services, LLC. | 3.1K | — | 12 |
| AS40154US | VRC-AS - Virtual Radiologic Corporation | 3.1K | — | 12 |
| AS26527US | LIGHTWAVE-NETWORKS - LightWave Networks | 3.1K | 2 | 14 |
| AS11126US | CARLE-ASN - Carle Clinic Association | 3.1K | — | 8 |
| AS401478US | WABASH-MUTUAL-TELEPHONE - Wabash Mutual Telephone Company | 3.1K | 65.5K | 4 |
| AS26423US | DOMRES - Dominion Virginia Power | 3.1K | — | 5 |
| AS53266US | DFNSYSRSWL - DFN Systems | 3.1K | — | 2 |
| AS399361US | ALCOA-CORP - Alcoa USA Corp. | 3.1K | — | 8 |
| AS26819US | TOIBGP1 - Telos Online, Inc | 3.1K | — | 6 |