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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1K |
| — |
| 1 |
| AS53627US | TELECOM1-01 - Telecom 1 LLC | 1K | 4.1K | 2 |
| AS19808US | ASNBLK-VTLA2 - NTT Global Networks Incorporated | 1K | — | 4 |
| AS8173US | STARBOARD - Starboard Networks LLC | 1K | 256 | 2 |
| AS32932US | COVIUS-AS32932 - Covius Shared Services, LLC | 1K | 1 | 5 |
| AS400800US | DAYTON-CHILDRENS-HOSPITAL - Dayton Children's Hospital | 1K | — | 3 |
| AS62541US | VSH-ASN - Vishay Intertechnology, Inc. | 1K | — | 3 |
| AS395003US | ABE-COMMERCE - AB E-Commerce, LLC | 1K | — | 4 |
| AS22038US | PRIME-SGF1 - New Prime, Inc. | 1K | — | 4 |
| AS11850US | MAGSNETLLC - Mags.Net, LLC | 1K | — | 4 |
| AS15110US | HILLS-CCC-INET - Hillsborough County - Clerk of Circuit Court | 1K | — | 4 |
| AS53535US | ARIN-PFS-ANYCAST - ARIN Operations | 1K | 3 | 6 |
| AS395086US | SCDC-SC-DATA-CENTER - SC Data Center, Inc. | 1K | — | 3 |
| AS992US | MODEST-LABS - Modest Labs LLC | 1K | 10 | 6 |
| AS29970US | DEVONCORP - Devon Energy Corporation | 1K | — | 4 |
| AS53276US | TUDOR - Tudor Investment Corporation | 1K | — | 4 |
| AS21586US | SWKO - SWKO - SouthWest Kansas Online | 1K | — | 4 |
| AS54342US | RNHN - Rural Nebraska Healthcare Network | 1K | — | 1 |
| AS40834US | CHARLES-RIVER-LABORATORIES-INC-SHR - Charles River Laboratories, Inc. | 1K | — | 1 |
| AS395095US | GARNET-HEALTH - Orange Regional Medical Center | 1K | — | 4 |
| AS19061US | ASN-CCILINK - CCiLink LLC | 1K | — | 1 |
| AS10936US | MARNELL-CORRAO-ASSOC-MCC1 - Marnell Corrao Assoc. | 1K | — | 1 |
| AS396268US | VILOGICS-EBENSDC1 - viLogics, Inc. | 1K | — | 1 |
| AS398820US | EA-ASN-01 - Eagle Alliance | 1K | 257 | 5 |
| AS22342US | GCSOM - Geisinger System Services | 1K | — | 1 |
| AS401181US | CORDIAL-01 - Cordial | 1K | — | 1 |
| AS14300US | NAF-SNAP7 - New American Funding | 1K | — | 3 |
| AS398900US | RENCI-FABRIC - University of North Carolina at Chapel Hill | 1K | 4.1K | 2 |
| AS394741US | ICCU - Idaho Central Credit Union | 1K | — | 3 |
| AS26260US | TMTAS01 - The Media Trust | 1K | — | 3 |
| AS22169US | OMNIS-ANYCAST-1 - Omnis Network, LLC | 1K | 4 | 8 |
| AS15238US | GF-AS15238 - Gates Foundation | 1K | — | 4 |
| AS31789US | ICON-TECHNOLOGIES - ICON Technologies Inc. | 1K | — | 4 |
| AS400451US | CMTC - Curium Technologies | 1K | — | 1 |
| AS13958US | PZG-FL - THE RIDGEROCK GROUP, LLC | 1K | — | 1 |
| AS54092US | DRW-HOLDINGS - DRW Holdings, LLC | 1K | — | 4 |
| AS12070US | ANYCAST-01 - ANYCAST LLC | 1K | — | 4 |
| AS394994US | PIVOTAL - AgUplink, LLC. | 1K | — | 1 |
| AS394893US | CLAIR - Clair Global | 1K | — | 4 |
| AS398647US | TRITECH-FIBER - Tritech Fiber | 1K | 4.1K | 5 |
| AS26522US | SU-ASN-1 - Stevenson University | 1K | 4.1K | 5 |
| AS25903US | GRIDCOMMUNICATIONS-240 - Grid Communications | 1K | — | 4 |
| AS33120US | VIRGINIA-BEACH-CITY-PUBLIC-SCHOOLS - Virginia Beach City Public Schools | 1K | — | 3 |
| AS396965US | WILDCARD-CORP - Wildcard Corp. | 1K | 65.5K | 5 |
| AS21895US | NYLS-AS - New York Law School | 1K | — | 4 |
| AS62714US | PHILLIPSDATA - Phillips Data, Inc. | 1K | 5 | 9 |
| AS14967US | NORTHMEMORIAL-HEALTHCARE-ASN - North Memorial Health Care | 1K | — | 1 |