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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 |
| — |
| — |
| 0 |
| AS396575US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS210660US | CAVEFOX CaveFox LLC | — | 257 | 2 |
| AS397541US | FINRA-CAT - FINRA | — | — | 0 |
| AS63268US | PETABIT-ARIN-1 - Petabit Scale, Inc. | — | — | 0 |
| AS63110US | ZUORA-CORP-USWEST - Zuora, Inc | — | — | 0 |
| AS63098US | FDE-3 - FOX CORPORATION | — | — | 0 |
| AS397240US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397265US | DIGITALWORX - Digital Worx, Inc | — | — | 0 |
| AS397235US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS18969US | KLC-AS-1 - Knowledge Learning Corporation | — | — | 0 |
| AS10270US | NECROMIUM - Idex Technologies | — | — | 0 |
| AS8120US | BESTWEB - FirstLight Fiber, Inc. | — | — | 0 |
| AS207414US | Ganawa-James-Juanah Ganawa Juanah | — | 2 | 2 |
| AS10853US | ANDERSENCORP - Andersen Corporation | — | — | 0 |
| AS11111US | THOMSON-REUTERS - Thomson Reuters Holdings Inc | — | — | 0 |
| AS14258US | ASTAC-ALASKA - Arctic Slope Telephone Association Cooperative, Inc. | — | — | 0 |
| AS402659US | USA-FED-ASN-01 - Entrust | — | 1 | 1 |
| AS10743US | GLOBALFEED - NTT Multimedia Communication Laboratories | — | — | 0 |
| AS401849US | HYPERION-NETWORK - Hyperion Telecom LLC | — | 3.1M | 6 |
| AS8154US | GTC - Gulf Telephone Company | — | — | 0 |
| AS6025US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | 6 | 6 |
| AS4207US | NET-INTRNET - Allied Access Inc. | — | — | 0 |
| AS18960US | HORNELL-INTERNET-PRIMARY - Hornell Brewing Co., Inc. | — | — | 0 |
| AS18726US | SECUREWORKS-18726 - SecureWorks Corp | — | — | 0 |
| AS18657US | MEETUP - Meetup, Inc. | — | — | 0 |
| AS19781US | AAA-CLUB-ALLIANCE - AAA Club Alliance Inc. | — | — | 0 |
| AS19891US | F-SECURE-AS-US - WithSecure Inc. | — | — | 0 |
| AS19775US | INTRASYSTEMS - Intrasystems, LLC | — | — | 0 |
| AS13560US | TWC-13560-NA - Charter Communications Inc | — | — | 0 |
| AS396561US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS12108US | PROFITDEV - PROFIT DEVELOPERS INC | — | — | 0 |
| AS12197US | DRUGSTORE-COM - Drugstore.Com, Inc. | — | — | 0 |
| AS12032US | PSJAISD - Pharr-San Juan-Alamo ISD | — | — | 0 |
| AS11944US | LTC-1 - LaValle Telephone Cooperative | — | 256 | 1 |
| AS14185US | CBSK - CABLE ONE, INC. | — | — | 0 |
| AS11536US | SRC-ASN01 - Sunrise Communications LLC | — | — | 0 |
| AS11400US | LNRP - LNR Property Corp | — | — | 0 |
| AS50907US | CodeBGP ThousandEyes LLC | — | 1 | 1 |
| AS13661US | VRIS-AS-BLOCK - Verizon Business | — | — | 0 |
| AS13881US | CIIS - California Institute of Integral Studies | — | — | 0 |
| AS11310US | BOSTONPUB - Boston Public Schools | — | — | 0 |
| AS211562US | andrewnet andrewnet llc | — | 262 | 7 |
| AS11234US | DEF-ASN-001 - Drew Eckl & Farnham, LLP | — | — | 0 |
| AS10305US | VERINET - Verinet Communications, Inc. | — | — | 0 |
| AS10635US | THE-BASTILLE - GTE Law Enforcement Services | — | — | 0 |
| AS10603US | TYPEHOUSE-GROUP - Typehouse Group | — | — | 0 |