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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| 4.6K |
| 1 |
| 4 |
| AS3380US | PPPL-AS1 - Princeton Plasma Physics Laboratory | 4.6K | — | 3 |
| AS398050US | TMV-CABLE - Mountain Village Town Of | 4.6K | — | 3 |
| AS40038US | MORAINEVALLEY-NET - Moraine Valley Community College | 4.6K | — | 8 |
| AS62605US | UNTANGLEDTECH - Untangled Technology, LLC | 4.6K | 65.5K | 4 |
| AS22062US | GEOSTAR - GeoStar, LLC. | 4.6K | — | 9 |
| AS15176US | AS-INOC - INOC, LLC | 4.6K | 65.5K | 4 |
| AS394170US | SUSQUEHANNA-UNIVERSITY - Susquehanna University | 4.6K | — | 3 |
| AS33650US | COMCAST-33650 - Comcast Cable Communications, LLC | 4.6K | 105 | 118 |
| AS31764US | OAKLAND-USD-NET - OAKLAND UNIFIED SCHOOL DISTRICT | 4.6K | 65.5K | 10 |
| AS394867US | VC-ASN-01 - Velocity Communications, Inc. | 4.6K | — | 4 |
| AS29938US | ENDICOTT-DIRECT-NETWORK - Endicott College | 4.6K | — | 3 |
| AS396878US | SPENCERMUNICIPALUTILITIES - Spencer Municipal Utilities | 4.6K | 65.7K | 27 |
| AS398335US | HELIO - Helio Broadband, LLC | 4.6K | — | 4 |
| AS46193US | SKYWERX - Visionary Communications LLC | 4.6K | — | 15 |
| AS11251US | DSTL-2-11251 - Disney Streaming Services | 4.6K | 10 | 28 |
| AS33149US | FFASTFILL-INC - Ffastfill Inc. | 4.6K | — | 3 |
| AS22855US | CARDINALHEALTH-AS01 - Cardinal Health, Inc. | 4.6K | 1 | 18 |
| AS18795US | ULV-AS - University of La Verne | 4.6K | — | 3 |
| AS13456US | SPOWA-ASN - City of Spokane | 4.6K | — | 5 |
| AS22361US | BWL - Believe Wireless, LLC. | 4.6K | 65.5K | 4 |
| AS398022US | OTP-398022 - Otter Tail Power Company | 4.6K | — | 3 |
| AS401339US | YCL-US - YAMATO CLOUD LLC | 4.6K | — | 14 |
| AS396990US | CTS-MONTICELLO - Monticello - Wayne County Telecommunication Board | 4.6K | 69.6K | 12 |
| AS22473US | SALT-LAKE-CITY - Salt Lake City Corporation | 4.6K | — | 18 |
| AS19512US | LYONDELL - Lyondell Chemical Company | 4.6K | — | 18 |
| AS16774US | MERCURYINS - Mercury Insurance Group | 4.6K | — | 9 |
| AS26297US | HCGOV - Howard County, Maryland | 4.6K | — | 5 |
| AS25932US | DWSI - Disney Worldwide Services, Inc. | 4.6K | — | 14 |
| AS13821US | ACML - AllianceBernstein L.P. | 4.6K | — | 17 |
| AS46176US | JIUCLOUD - JiuCloud Networks LLC | 4.6K | — | 5 |
| AS394140US | NATIVENETWORK-1 - Native Network | 4.6K | — | 12 |
| AS22027US | CBTS-USONX-01 - CBTS Technology Solutions LLC | 4.6K | — | 8 |
| AS21515US | NET-SISQTEL-NET1 - SISKIYOU TELEPHONE COMPANY | 4.6K | 65.5K | 3 |
| AS12266US | SRN-HOSTING - StoreRunner, Inc. | 4.6K | 1 | 9 |
| AS31783US | SKRC-SOUTH01 - SKYRIDER COMMUNICATIONS LLC | 4.6K | — | 13 |
| AS398232US | CONNECTANZA - Anza Electric Cooperative Inc | 4.6K | — | 7 |
| AS16525US | KBR - KBR | 4.6K | — | 9 |
| AS397087US | MUW-ASN-01 - Mississippi University for Women | 4.6K | — | 3 |
| AS1406US | MOTOROLA-MOBILITY - Motorola Inc | 4.4K | — | 11 |
| AS396191US | ECHOBROADBAND - Echo Broadband, Inc | 4.4K | — | 4 |
| AS40819US | VPSDATACENTER - Liquid Web, L.L.C | 4.4K | 256 | 13 |
| AS22077US | RENAISSANCE-TECH - Renaissance Technologies Corp. | 4.4K | — | 11 |
| AS19600US | NCH-AS - Nationwide Children's Hospital | 4.4K | — | 2 |
| AS53684US | CWAS02 - Centre WISP Venture Company | 4.4K | — | 4 |
| AS10320US | ISPN - Internet Services Provider Network | 4.4K | 65.5K | 3 |
| AS402681US | AYIT-INTERNET - AYIT | 4.4K | 8.2K | 10 |