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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 |
| AS54196US | VERABRADLEYDESIGNS - Vera Bradley Designs, INC. | 256 | — | 1 |
| AS63378US | JJI - J. Josephson, Inc. | 256 | — | 1 |
| AS402074US | SOFTIRON-ASN-RIC - SoftIron | 256 | 1 | 2 |
| AS33373US | FHLBB-5 - Federal Home Loan Bank of Boston | 256 | — | 1 |
| AS11600US | PARALLAX - Parallax Services LLC | 256 | 1 | 2 |
| AS25825US | PVH-ASN-1 - Poudre Valley Health Care, Inc. | 256 | — | 1 |
| AS46336US | GOODVILLE - Goodville Mutual Casualty Company | 256 | — | 1 |
| AS20216US | CBSITE-ASH - CareerBuilder, LLC | 256 | — | 1 |
| AS19722US | NFTA - Niagara Frontier Transportation Authority | 256 | — | 1 |
| AS53889US | WJY - WJY LLC | 256 | 256 | 2 |
| AS133052US | FXCM-ASIA-AS-AP - FX Corporate LLC | 256 | — | 1 |
| AS400219US | COMMUNITYLTE - Local Pro | 256 | — | 1 |
| AS25989US | STONEEAGLE - StoneEagle Insurance Systems, Inc. | 256 | — | 1 |
| AS18900US | CQG-INC - CQG, Inc. | 256 | — | 1 |
| AS31991US | PRPA - Platte River Power Authority | 256 | — | 1 |
| AS11832US | AS-BANDBCOCO - Bridge & Byte Consulting Co. | 256 | 3 | 4 |
| AS396164US | BHFCU-ASN-1 - Black Hills Federal Credit Union | 256 | — | 1 |
| AS62800US | CIRRUS-AIRCRAFT - Cirrus Design Corporation | 256 | — | 1 |
| AS13901US | AS-AFILIAS-NRT1 - Afilias, Inc. | 256 | 1 | 2 |
| AS32673US | EVERGREEN-TECH-TX - Evergreen Technology Solutions, LLC | 256 | 65.5K | 2 |
| AS36582US | EVMAGDIA-LT-CL - Magnetar Capital LLC | 256 | 1 | 2 |
| AS62529US | AS-APEX - Apex Development Group LLC | 256 | 4.1K | 2 |
| AS22416US | LIBERTYDENTALPLAN - Liberty Dental Plan | 256 | — | 1 |
| AS14452US | CMA-USA - CMA, Inc. | 256 | — | 1 |
| AS30074US | WIFIBER-NETWORK-01 - WiFiber Corp. | 256 | 65.5K | 2 |
| AS13550US | ROTHMAN-01 - Reconstructive Orthopaedic Associates II LLC | 256 | — | 1 |
| AS401833US | AXNET-AS - AXNET LLC | 256 | 256 | 2 |
| AS40039US | ALPHA-N-OMEGA-AOS-40 - ALPHA AND OMEGA SEMICONDUCTOR INCORPORATED | 256 | — | 1 |
| AS54440US | PCL-ASN1 - Pamir Consulting LLC | 256 | — | 1 |
| AS394946US | SAP-CONCUR-BV - SAP America Inc. | 256 | — | 1 |
| AS401675US | EAI-ASN - Empire AI | 256 | 256 | 2 |
| AS40572US | SEA-DC - Pemco Mutual Insurance Company | 256 | — | 1 |
| AS399582US | VLL-ASN-01 - Voice Logic, LLC. | 256 | — | 1 |
| AS32646US | LPC-ASN - Long Pond Capital, LP. | 256 | — | 1 |
| AS393291US | KEMPER-DEVELOPMENT - Kemper Development Company | 256 | — | 1 |
| AS12225US | CONSUMERINFO1 - Consumerinfo.com, Inc. | 256 | — | 1 |
| AS55250US | IQVIA-KIRKLAND - IQVIA Holdings Inc | 256 | — | 1 |
| AS401130US | SATURN-ASN-01 - SaturnDotDev | 256 | 256 | 2 |
| AS393583US | KIRKLAND-ELLIS-CH - Kirkland & Ellis LLP | 256 | — | 1 |
| AS40599US | GENTEXCORPORATION - Gentex Corporation | 256 | — | 1 |
| AS400785US | MALL OF AMERICA - MALL OF AMERICA | 256 | — | 1 |
| AS397459US | UPPER-ST-CLAIR-SCHOOL-DISTRICT - Upper St. Clair School District | 256 | — | 1 |
| AS397971US | MISD-28-ASN-01 - Midlothian Independent School District | 256 | — | 1 |
| AS401285US | MICHIGANVIRTUAL - MICHIGAN VIRTUAL | 256 | — | 1 |
| AS22973US | NORWEST-VENTURE - Norwest Venture Partners | 256 | — | 1 |
| AS19347US | JACKSON-1 - JACKSON NATIONAL LIFE INSURANCE CO. | 256 | — | 1 |