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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,174 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,940 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,379 |
| 1.3K |
| — |
| 5 |
| AS18693US | UCH-CENTRAL - University of Colorado Hospital | 1.3K | — | 4 |
| AS27613US | TYLERTECH-CCS1 - Tyler Technologies, Inc. | 1.3K | — | 5 |
| AS33151US | TRUSTWAVE-ASN - Trustwave Holdings, Inc. | 1.3K | 65 | 7 |
| AS21718US | NW-NATURAL-GAS - Northwest Natural Gas | 1.3K | — | 5 |
| AS17178US | MOTIONINDUSTRIES - Motion Industries, Inc. | 1.3K | — | 5 |
| AS22013US | GUARD-DC1 - Guardian Analytics, Inc. | 1.3K | — | 5 |
| AS6534US | OCEANIC-CABLE - Charter Communications Inc | 1.3K | — | 2 |
| AS27527US | HTFCU-AS - Heritage Trust Federal Credit Union | 1.3K | — | 2 |
| AS16618US | FUC-AS-16618 - Finastra USA Corporation | 1.3K | — | 5 |
| AS397973US | CDS-GLOBAL-01 - CDS GLOBAL, INC. | 1.3K | — | 5 |
| AS46171US | CFBISD-AS1 - Carrollton-Farmers Branch Independent School Dist. | 1.3K | — | 5 |
| AS53554US | NCUA-GOV---NATIONAL-CREDIT-UNION-ADMINISTRATION - National Credit Union Administration | 1.3K | — | 4 |
| AS19747US | DATAVAIL-ASN - Datavail | 1.3K | 18 | 7 |
| AS14052US | STEPHENS - Stephens, Inc. | 1.3K | — | 5 |
| AS62659US | Q2HOLDINGS - Q2 Software, Inc. | 1.3K | — | 5 |
| AS401304US | PROPEL-CLOUD-02 - PropelCLOUD | 1.3K | — | 3 |
| AS397071US | AWEB-LLC-ASN - AWEB LLC | 1.3K | 1 | 6 |
| AS22546US | WEYERHAEUSER - Weyerhaeuser Company | 1.3K | — | 2 |
| AS63434US | NFA - National Futures Association | 1.3K | — | 5 |
| AS53320US | INTERACTIVE-INTELLIGENCE-INC - Genesys Telecommunications Laboratories,Inc. | 1.3K | — | 4 |
| AS27349US | DNI-4305 - Definitive Networks, Inc. | 1.3K | — | 5 |
| AS190US | DNIC-AS-00190 - Navy Network Information Center (NNIC) | 1.3K | — | 5 |
| AS393710US | WEBAIR-INTERNET-SINGAPORE - Webair Internet Development Company Inc. | 1.3K | 65.5K | 3 |
| AS401222US | BLOCKAGENDA - Block Agenda LLC | 1.3K | 4.1K | 3 |
| AS14139US | AS-MAXOR - Maxor National Pharmacy Services, LLC | 1.3K | — | 4 |
| AS396842US | RURALNET - RuralNET | 1.3K | 4.1K | 3 |
| AS398200US | JTN-COMMUNICATIONS - JTN Communications, LLC | 1.3K | — | 4 |
| AS26215US | XCLUTEL - Xclutel LLC | 1.3K | — | 2 |
| AS18527US | HAGC-ASN - UC Health, LLC | 1.3K | — | 5 |
| AS399912US | HAYO-TELECOM - Hayo Telecom, Inc | 1.3K | 65.5K | 3 |
| AS53811US | SFCL-HNP - San Francisco Chronicle, LLC | 1.3K | — | 2 |
| AS400963US | AS-GLXY-DIGITAL - Galaxy Digital LP | 1.3K | — | 5 |
| AS393880US | HAL - Hawaiian Airlines | 1.3K | — | 5 |
| AS40464US | ECLIPSENET - Eclipse Networks, Inc. | 1.3K | — | 5 |
| AS402267US | HADOOPSKY - Hadoopsky LLC | 1.3K | — | 5 |
| AS32884US | DV-TRADING-LLC - DV TRADING, LLC | 1.3K | — | 5 |
| AS50069US | MISAKA-ANYCAST Misaka Network, Inc. | 1.3K | 10 | 15 |
| AS400397US | HERKIMER-COUNTY-COMMUNITY-COLLEGE - Herkimer County Community College | 1.3K | — | 5 |
| AS40625US | TWC-WESTELCOM-MULTIHOMED - Jefferson Community College | 1.3K | — | 5 |
| AS399522US | TP - The Producers, Inc. | 1.3K | 256 | 5 |
| AS26063US | ALCONLABS-11975 - Alcon Labs, Inc. | 1.3K | — | 5 |
| AS26840US | ABG - Advanced Business Group, LLC | 1.3K | — | 4 |
| AS399909US | FRANKLINCOLLEGE - Franklin College of Indiana | 1.3K | — | 3 |
| AS27313US | SPENCER-STUART - Spencer Stuart | 1.3K | — | 5 |
| AS27239US | 101VOICE - 101VOICE | 1.3K | — | 4 |
| AS54106US | 8WIRE - 8-Wire LLC | 1.3K | — | 5 |