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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 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 | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 256 |
| 65.5K |
| 2 |
| AS394515US | MKT-CH2-NOC - Market Track LLC | 256 | — | 1 |
| AS397129US | LIFESCAN-GLOBAL-CORP - LifeScan Global Corporation | 256 | — | 1 |
| AS402077US | MSE-01 - Monumental Sports & Entertainment | 256 | — | 1 |
| AS40378US | NESSIT - Nessit, LLC | 256 | — | 1 |
| AS398135US | NWNC - SKYWEB OF ILLINOIS, INC. | 256 | — | 1 |
| AS26031US | MONMOUTH-COUNTY - Monmouth County | 256 | — | 1 |
| AS394348US | ARA-MOLINE - American Rental Association | 256 | — | 1 |
| AS394711US | KORGRID - KorGrid, LLC | 256 | — | 1 |
| AS395027US | AGT-US-5800 - Ainsworth Game Technology, Inc. | 256 | — | 1 |
| AS19534US | LCTC-AS1 - Lee County Tax Collector | 256 | — | 1 |
| AS399823US | GGSL - GOIP GLOBALNET SOLUTIONS LLC | 256 | — | 1 |
| AS397266US | PAPERLESSPOST - Paperless Inc | 256 | — | 1 |
| AS400023US | ISD279-OSSEO-AREA-SCHOOLS - ISD 279 Osseo Area Schools | 256 | — | 1 |
| AS14637US | SBM-ASN - STATER BROS MARKETS | 256 | — | 1 |
| AS54851US | NEBH - New England Baptist Hospital | 256 | — | 1 |
| AS53544US | LUMUGRACEFUL - LUMU GRACEFUL | 256 | — | 1 |
| AS14601US | AAL-ASN - Anchorage Advisors, LLC | 256 | — | 1 |
| AS54172US | PAYROC WORLDACCESS LLC - Payroc WorldAccess, LLC | 256 | 2 | 3 |
| AS46881US | ACMH-HOSPITAL - ACMH Hospital | 256 | — | 1 |
| AS397840US | GMS-ASN-01 - GENERAL MARKETING SOLUTIONS LLC | 256 | — | 1 |
| AS33581US | PEOPLESBANK-NA - Peoples Bank, National Association | 256 | — | 1 |
| AS394324US | AS-PISD-8 - Pearland Independent School District | 256 | — | 1 |
| AS39991US | CORELOCATED-CORP - Core Located Global LLC | 256 | — | 1 |
| AS22214US | MEDELAINC - Medela Inc | 256 | — | 1 |
| AS23104US | AMERICAN-TIRE-DISTRIBUTORS-INC - AMERICAN TIRE DISTRIBUTORS, INC. | 256 | — | 1 |
| AS395646US | NEUTRAL-NETWORKS - Neutral Networks | 256 | 65.5K | 2 |
| AS401139US | PRIVATE-NETWORK - PRIVATE NETWORKS LLC | 256 | — | 1 |
| AS402622US | OSS-1 - Offline | 256 | 256 | 2 |
| AS33191US | NOTION-WEB - Notion Labs, Inc. | 256 | 1 | 2 |
| AS32917US | RANDALLCOUNTY-01 - Randall County Texas | 256 | — | 1 |
| AS12011US | TSD-AS-01 - Thompson School District | 256 | — | 1 |
| AS36237US | AECC - Arkansas Electric Cooperative Corporation | 256 | — | 1 |
| AS26489US | ASN-POLUNS - Polunsky & Beitel | 256 | — | 1 |
| AS398293US | LCUB-NET-01 - LCUB | 256 | — | 1 |
| AS62815US | LAER-AS-CAM1 - UnitedLayer, LLC | 256 | 1 | 2 |
| AS27341US | GFNET-AS01 - Gannet Fleming, Inc. | 256 | — | 1 |
| AS401547US | HCDL-BUFFALO-DATA-CENTER - H5 Data Centers | 256 | 256 | 2 |
| AS1751US | LEXMARK-AS - Lexmark International Inc. | 256 | 5 | 6 |
| AS393851US | CURTIS - Taylor Corporation | 256 | — | 1 |
| AS61228US | BGP-NETWORKS-LLC BGP NETWORKS LLC | 256 | 26 | 12 |
| AS18957US | TAXRESOURCES-1 - TaxAudit.com | 256 | — | 1 |
| AS401071US | SEA-BOX - Sea Box, Inc. | 256 | — | 1 |
| AS33572US | ELECTRONIC-ARTS-LOS-ANGELES - Electronic Arts, Inc. | 256 | — | 1 |
| AS397483US | ACBO-185 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS402821US | NETVAZ - NETVAZ | 256 | — | 1 |
| AS46610US | WARREN-COUNTY-TELECOMMUNICATIONS - Warren County Board of Commissioners | 256 | — | 1 |