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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,173 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,242 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,668 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,949 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,365 |
| 512 |
| — |
| 2 |
| AS398485US | DFINITY-NET - DFINITY USA Research, LLC | 512 | 4.1K | 6 |
| AS53489US | TGNA-WBIR - TEGNA Inc. | 512 | — | 2 |
| AS18702US | DEGENET-AS - DEGE NETWORK TECHNOLOGIES LLC | 512 | — | 2 |
| AS53560US | ENDO - Endo Pharmaceuticals Inc | 512 | — | 2 |
| AS402174US | SHIELDITSM-01 - Shield ITSM, LLC | 512 | 2 | 4 |
| AS55257US | LOU1-STRATAPOINTE - Strata Pointe Technologies LLC | 512 | — | 1 |
| AS54820US | DN-TX - Diebold Nixdorf, Incorporated | 512 | — | 2 |
| AS40776US | TAONET - TaoNet | 512 | 268 | 15 |
| AS36450US | UTSYSADM-AS-1 - University of Texas System Administration | 512 | — | 1 |
| AS13516US | CTCA1336 - Cancer Treatment Centers of America, Inc. | 512 | — | 2 |
| AS397502US | TGNA-WTOL - TEGNA Inc. | 512 | — | 2 |
| AS30040US | PIM-ASN - Amundi Asset Management US, Inc. | 512 | — | 2 |
| AS23433US | STAMPS-COM - STAMPS.COM | 512 | — | 2 |
| AS16737US | STABLEHOST - Nerdie Networks LLC | 512 | — | 2 |
| AS401596US | TAC-205-23 - Texas Association of Counties | 512 | — | 1 |
| AS11479US | BRM-SUN-AS - Oracle Corporation | 512 | — | 2 |
| AS27149US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 512 | — | 2 |
| AS400468US | AXIOGIC - Axiogic | 512 | — | 2 |
| AS398705US | CENSYS-ARIN-02 - Censys, Inc. | 512 | 2 | 4 |
| AS538US | DNIC-AS-00538 - Headquarters, USAISC | 512 | — | 2 |
| AS39618US | HostCram HostCram LLC | 512 | 256 | 3 |
| AS399929US | MAA-ASN-01 - Mid-America Apartments, L.P. | 512 | — | 2 |
| AS53721US | CORETELLIGENT - Coretelligent, LLC | 512 | — | 2 |
| AS32368US | MOUSER-ELECTRONICS - mouser electronics | 512 | — | 2 |
| AS19357US | NESL - New Enterprise Stone & Lime Company | 512 | — | 2 |
| AS53846US | UNITI-FIBER-VOICE - Uniti Fiber Holdings Inc. | 512 | — | 2 |
| AS23010US | FFHSJ - Fried, Frank, Harris, Shriver & Jacobson LLP | 512 | — | 2 |
| AS258US | BRAGGSRI-EGP-AS - Headquarters, USAISC | 512 | — | 2 |
| AS46138US | MAIKIWI-COMPANY-AS - Maikiwi Network LLC | 512 | 1 | 3 |
| AS23082US | MPHI - Michigan Public Health Institute | 512 | — | 2 |
| AS40350US | KEYCOOP - Key Cooperative | 512 | — | 2 |
| AS22230US | NETDOCUMENTS-US - NetDocuments | 512 | — | 2 |
| AS395362US | 8X8-AS-1 - 8x8, Inc. | 512 | — | 2 |
| AS53572US | HNB - Hookers and Blow | 512 | — | 2 |
| AS399947US | AURORA-GEO - Pacific Dataport Inc. | 512 | — | 1 |
| AS46766US | ICONIC-AS - Iconic Internet, LLC | 512 | 3 | 5 |
| AS62540US | DRAKE-AS - Drake Holdings LLC | 512 | — | 2 |
| AS25711US | VMC-PELLA-AS - Vermeer Manufacturing Company | 512 | — | 2 |
| AS27360US | KWIKTRIP-AS - Kwik Trip Inc. | 512 | 16 | 3 |
| AS10905US | MTVI-AS - Mobile Technology Ventures Inc | 512 | — | 2 |
| AS22156US | DANANET - Dana Consulting, Inc. | 512 | — | 1 |
| AS50937US | INFINITIUM-AS INFINITIUM CORPORATION | 512 | 1 | 3 |
| AS396654US | VRSN-AC50-340 - VeriSign Global Registry Services | 512 | 1 | 3 |
| AS26717US | AS-RPS - Richmond Public Schools | 512 | — | 1 |
| AS395698US | BCBSKS - Blue Cross Blue Shield of Kansas, Inc. | 512 | — | 2 |
| AS16642US | WPP-ET-CAMPUS-ZURICH - The Ogilvy Group, LLC | 512 | — | 1 |