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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 | 21,129 |
| 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 | 3,664 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,947 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,375 |
| 1K |
| — |
| 3 |
| AS40047US | IU1-KITS - Intermediate Unit 1 | 1K | — | 1 |
| AS202US | CENTURYLINK-LEGACY-LVLT-202 - Level 3 Parent, LLC | 1K | — | 1 |
| AS22496US | LIMEBROKERAGE-US - Score Priority Corp | 1K | — | 1 |
| AS27227US | DILLARDS-STORE-SERVICES - Dillard's Store Services Inc. | 1K | — | 1 |
| AS19787US | FEIM-LLC - First Eagle Investment Management LLC | 1K | — | 3 |
| AS33488US | WATECH-1 - Providence Park Medical Building Group, LLC | 1K | — | 1 |
| AS399251US | KBSI-ASN - Koch Industries, Inc. | 1K | — | 3 |
| AS393969US | KALEIDESCAPE-INC - Kaleidescape, Inc. | 1K | — | 4 |
| AS54993US | OPSRP-IP-1 - OpsRamp, LLC | 1K | — | 4 |
| AS397908US | ALDOT-ROUTE - Alabama Department of Transportation | 1K | — | 4 |
| AS400183US | RELIANCE-STEEL-AND-ALUMINUM-01 - Reliance Steel and Aluminum Co. | 1K | — | 4 |
| AS401332US | TRIPLEBIT - Triplebit | 1K | 131 | 8 |
| AS14645US | AS-CJIS-20 - CJIS-Consortium-20th-Court Administration | 1K | — | 1 |
| AS27632US | TRACTORSUPPLY - Tractor Supply Company | 1K | 65.5K | 7 |
| AS397822US | CRC-ASN - California Resources Corporation | 1K | — | 3 |
| AS16550US | GOOGLE-PRIVATE-CLOUD - Google LLC | 1K | — | 4 |
| AS400927US | BARGER-CREEK - Barger Creek Wireless | 1K | — | 1 |
| AS397018US | CLOUDPROPELLER-AS01 - Cloud Propeller | 1K | 4.1K | 5 |
| AS401430US | POND-IOT-01 - POND IOT | 1K | 257 | 5 |
| AS63109US | FCEMC-NETWORKS - Four County Electric Membership Corporation | 1K | — | 1 |
| AS399215US | ACTS-01 - ACTS | 1K | — | 3 |
| AS33277US | ASN33277 - Cu Cooperative Systems, Inc. | 1K | — | 4 |
| AS16619US | GTRI-RSRCH - Georgia Institute of Technology | 1K | — | 1 |
| AS26197US | HIGHJUMPSOFTWARE - Korber Supply Chain US, Inc. | 1K | — | 4 |
| AS26670US | MCISD-AS - Mission CISD | 1K | — | 1 |
| AS22716US | LOGIC-32-22716 - Logicalis | 1K | — | 1 |
| AS14136US | PCCC - PC Connection, Inc. | 1K | — | 4 |
| AS40553US | CUYAHOGA-COUNTY - Cuyahoga County Information Services center | 1K | — | 2 |
| AS19647US | HPINC - HP Inc. | 1K | — | 2 |
| AS21975US | LOOMISSAYLES - LOOMIS SAYLES & CO., LP | 1K | — | 4 |
| AS40800US | VEEAM-US - VEEAM SOFTWARE CORPORATION | 1K | — | 4 |
| AS33378US | ASN1 - EASTERN BANK | 1K | — | 4 |
| AS54314US | LHA-2-ASN - Lancaster General Health | 1K | — | 4 |
| AS395645US | COMPLUS-ASN - Communications Plus, Inc. | 1K | — | 2 |
| AS11212US | COUNTY-OF-SONOMA - COUNTY OF SONOMA | 1K | — | 3 |
| AS896US | FORTLAB - Fortlab | 1K | — | 4 |
| AS401234US | NORTHEASTERN-LON-AS - Northeastern University | 1K | — | 3 |
| AS394928US | WEST-COAST - ORORA PACKAGING SOLUTIONS | 1K | — | 4 |
| AS401814US | WPP-ET-CAMPUS-SAOPAULO - The Ogilvy Group, LLC | 1K | — | 3 |
| AS401299US | SIPNAV-EAST - SipNav LLC | 1K | 256 | 5 |
| AS4451US | ASN1 - 1199SEIU National Benefit Funds | 1K | — | 4 |
| AS29963US | MARYKAY-NA - Mary Kay Inc. | 1K | — | 2 |
| AS46457US | ESD112 - ESD 112 | 1K | — | 3 |
| AS46246US | RAPTOR-DC-01 - Raptor Engineering, LLC | 1K | 4.1K | 4 |
| AS26795US | AS-AEN - Arizona Education Network Services Corporation | 1K | 4.1K | 2 |
| AS401427US | SLMD-US-01 - Solidigm | 1K | — | 3 |