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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 | 21,186 |
| 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 | 3,669 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,373 |
| 256 |
| — |
| 1 |
| AS46881US | ACMH-HOSPITAL - ACMH Hospital | 256 | — | 1 |
| AS33498US | TALCOTT-RESOLUTION-INSURANCE - Talcott Resolution Life Insurance Company | 256 | — | 1 |
| AS46857US | 10X-NETWORKS - SSL Wireless, LLC | 256 | 4.1K | 2 |
| AS54089US | OPTECH - Operational Technologies Corporation | 256 | — | 1 |
| AS53749US | MWT - Midwest Tape | 256 | — | 1 |
| AS399713US | KIRKLAND-ELLIS-DE - Kirkland & Ellis LLP | 256 | — | 1 |
| AS399406US | AS-BILL360 - Bill360, Inc. | 256 | — | 1 |
| AS46187US | SPY - International Spy Museum | 256 | — | 1 |
| AS12157US | ECM-ASN - Element Capital Management LLC | 256 | — | 1 |
| AS395792US | HPS-AS-MA-US - Holyoke Public Schools | 256 | — | 1 |
| AS26382US | APAHQ - Allied Pilots Association | 256 | — | 1 |
| AS214806US | FEMBOY Femboy Cyber Networks LLC | 256 | 1 | 2 |
| AS36258US | GEM-SHOPPING-NETWORK - GEM SHOPPING NETWORK | 256 | — | 1 |
| AS23161US | PHOTOSHELTER-LON - PhotoShelter, Inc. | 256 | 1 | 2 |
| AS46610US | WARREN-COUNTY-TELECOMMUNICATIONS - Warren County Board of Commissioners | 256 | — | 1 |
| AS401437US | NEXTGUARD-HOSTING - NextGuard Solutions, Inc. | 256 | — | 1 |
| AS13583US | AIP-AS13583 - Allstate Identity Protection | 256 | — | 1 |
| AS399421US | EMI-HEALTH - EDUCATORS MUTUAL INSURANCE ASSOCIATION | 256 | — | 1 |
| AS62702US | AS62702 - Nimble Storage, Inc. | 256 | — | 1 |
| AS401193US | USD305REQUEST - SALINA UNIFIED SCHOOL DISTRICT | 256 | — | 1 |
| AS63226US | LLL-137-63226 - LMX Labs LLC | 256 | — | 1 |
| AS396262US | FSO-ASN - Fresno County Sheriff's Office | 256 | — | 1 |
| AS55146US | BGWAT - NUCOR BUILDING SYSTEMS SALES CORPORATION | 256 | — | 1 |
| AS396131US | FERRE226-ARIN - Town of Hempstead | 256 | — | 1 |
| AS20344US | BILLERICAPS-MA-ASN - Billerica Public Schools | 256 | 1 | 2 |
| AS397364US | MSF-USA-01 - Doctors without Borders USA, Inc. | 256 | — | 1 |
| AS396215US | CCBCC-FL - Charlotte County Board of County Commissioners | 256 | — | 1 |
| AS17367US | 382-COM-NY - 382 Communications Corporation | 256 | — | 1 |
| AS398540US | COMPASS-MINERALS-01 - Compass Minerals America Inc. | 256 | — | 1 |
| AS54336US | HANSON-BRIDGETT-LLP - Hanson Bridgett LLP | 256 | — | 1 |
| AS53758US | INVALID-NETWORK - Invalid Network | 256 | 16 | 2 |
| AS396941US | DRI-RSC - DARDEN CORPORATION | 256 | — | 1 |
| AS400910US | MOOSE - Uptown Moose, Inc. | 256 | 65.5K | 2 |
| AS62598US | REI-TEL - Re-invent Telecom, LLC | 256 | — | 1 |
| AS54693US | AS24950 - AlphaSimplex Group, LLC | 256 | — | 1 |
| AS63274US | WVSU - West Virginia State University | 256 | — | 1 |
| AS16533US | AS-SAFETY-INSURANCE - Safety Insurance Company | 256 | — | 1 |
| AS402440US | CYBERWOLF - Cyberwolf | 256 | 2 | 3 |
| AS400023US | ISD279-OSSEO-AREA-SCHOOLS - ISD 279 Osseo Area Schools | 256 | — | 1 |
| AS12011US | TSD-AS-01 - Thompson School District | 256 | — | 1 |
| AS16956US | CATTARAUGUS-COUNTY - Cattaraugus County | 256 | — | 1 |
| AS401925US | GRAPE-AWS-1 - Grapevine Labs LLC | 256 | — | 1 |
| AS399317US | GCPHD-CBH - Columbia Basin Hospital | 256 | — | 1 |
| AS31935US | APOG-NORFOLK - Apogee Telecom Inc. | 256 | — | 1 |
| AS26293US | RSI-COLO - R Systems Inc. | 256 | — | 1 |
| AS394110US | BNFP - Jaguar Land Rover Manhattan | 256 | 1 | 2 |